Ink cartridges

Abstract

To provide a member having a new pad electrode produced by improving a conventional technique.SOLUTION: A member, which can be attached to an attachment part comprising an ink receiving tube and a plurality of electric connection parts, comprises: a first part as a part facing the outside of the member, which has an insertion portion into which the ink receiving tube is inserted; a second part at the opposite side of the first part; and a third part having a plurality of pad electrodes that can be electrically connected to the plurality of electric connection parts, through which the first part is connected to the second part. The member is inserted, along an insertion direction in which the first part is a front part, into the attachment part to be attached to the attachment part. The plurality of pad electrodes are moved in a direction different from the insertion direction, to be electrically connected to the electric connection parts.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a member having pad electrodes, an ink cartridge, and a recording device in which the ink cartridge is mounted. [Background technology]

[0002] Some recording devices, such as inkjet printers and laser beam printers, are equipped with a member (e.g., an ink cartridge) having an electrode portion with pad electrodes. When such a member is installed in the recording device, the pad electrodes of the member become electrically connectable to the electrical connection portion of the recording device.

[0003] Patent Document 1 describes an ink cartridge provided with a circuit board (pad electrode) having a memory element. When this ink cartridge is installed in a recording device, the connection terminal of the recording device and the pad electrode of the ink cartridge are electrically connectable. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-273173 A Summary of the Invention [Problem to be solved by the invention]

[0005] According to the inventors' investigations, when the ink cartridge described in Patent Document 1 is mounted in a recording device with too much force, there are cases in which good contact is not achieved between the connection terminals of the recording device and the pad electrodes of the ink cartridge.

[0006] That is, in the conventional technology, there is room for improvement in the member (ink cartridge) having the pad electrodes and in the recording device in which the member is mounted. [Means for solving the problem]

[0007] A typical configuration is as follows:

[0008] A cylindrical ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions and that stores ink, the ink cartridge having an ink receiving tube and a second portion opposite the first portion, the ink cartridge having a first portion that has an insertion portion into which the ink receiving tube is inserted as a portion facing outward from the ink cartridge; and, the plurality of electrical connections; At electrical contacts a third portion having a plurality of electrically connectable pad electrodes and connecting the first portion and the second portion, the third portion having a large diameter portion having a relatively large diameter and a small diameter portion having a relatively smaller diameter than the large diameter portion, the plurality of pad electrodes being provided on the small diameter portion a direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to a direction from the first portion toward the second portion; There are. A cylindrical ink cartridge which stores ink and can be attached to an attachment portion having an ink receiving tube and multiple electrical connection parts, the ink cartridge having a first portion facing outward and having an insertion portion into which the ink receiving tube is inserted, a second portion opposite the first portion, and a third portion which has multiple pad electrodes which can be electrically connected to the multiple electrical connection parts and connects the first portion and the second portion, the third portion having a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than the large diameter portion, the multiple pad electrodes being provided on the small diameter portion, and the large diameter portion of the third portion has a guide portion for rotating the ink cartridge. A cylindrical ink cartridge which stores ink and can be attached to an attachment portion having an ink receiving tube and multiple electrical connection parts, the ink cartridge having a first surface having an insertion portion into which the ink receiving tube is inserted, a second surface opposite the first surface, and a cylindrical portion connecting the first surface and the second surface, the cylindrical portion having a large diameter portion and a small diameter portion whose diameter is relatively smaller than that of the large diameter portion, a plurality of pad electrodes which can be electrically connected to the plurality of electrical connection parts by electrical contacts are provided on the small diameter portion of the cylindrical portion, and the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the direction from the first surface toward the second surface. Effect of the Invention

[0009] Follow A new ink cartridge that improves on existing technology J is provided. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 illustrates a configuration of an inkjet printer. [Diagram 2] FIG. [Diagram 3] FIG. 4 is a diagram showing the configuration of the electrical connection portion of the mounting portion and its surroundings. [Figure 4] FIG. 4 is a diagram showing the configuration of the electrical connection portion of the mounting portion and its surroundings. [Diagram 5] FIG. 4 is a diagram showing the configuration of the electrical connection portion of the mounting portion and its surroundings. [Figure 6] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 7] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 8] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 9] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 10] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 11] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 12] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 13] FIG. 4 is a diagram showing the arrangement of pad electrodes. [Figure 14] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 15] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 16] 6A and 6B are diagrams illustrating engagement of guide portions of the ink cartridge. [Figure 17] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 18] 4A and 4B are diagrams showing the configuration of the pad electrodes and the guide portion of the ink cartridge. [Figure 19] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 20] FIG. 2 illustrates a configuration of an ink cartridge. [Figure 21] FIG. 4 is a diagram showing the configuration of the electrical connection portion of the mounting portion and its surroundings. [Figure 22] FIG. 4 is a diagram showing how the ink cartridge is installed. [Diagram 23] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 24] FIG. 4 is a diagram showing the configuration of the electrical connection portion of the mounting portion and its surroundings. [Diagram 25] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 26] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 27] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 28] FIG. 4 is a diagram showing how the ink cartridge is installed. [Figure 29] FIG. [Diagram 30] FIG. [Diagram 31] FIG. [Diagram 32] 4A and 4B are diagrams illustrating a configuration for mounting an ink cartridge member to a member. [Diagram 33] 4A and 4B are diagrams illustrating how the member and the ink cartridge member are attached. [Diagram 34] 5A and 5B are diagrams illustrating how the ink cartridge member is attached to the member. [Diagram 35] FIG. 13 is a diagram showing a configuration in which an ink storage bottle is attached via a tube. [Diagram 36] 3A and 3B are diagrams showing the configuration of an electrode portion and a pad electrode. [Figure 37] 3A and 3B are diagrams showing the configuration of an electrode portion and a pad electrode. [Figure 38] 3A and 3B are diagrams showing the configuration of an electrode portion and a pad electrode. [Figure 39] FIG. 2 illustrates a configuration of an ink cartridge. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments of the member, ink cartridge, and recording device according to the present invention will be specifically described with reference to the drawings. Note that each of the following embodiments is a suitable example for carrying out the present invention, and the present invention is not limited to these configurations. Also, the contents described in each embodiment can be partially combined.

[0012] [First embodiment] First, an example will be described in which an inkjet printer is used as the recording device and an ink cartridge is used as the member.

[0013] <Recording device> (Overall composition) The overall configuration of an inkjet printer 1 (hereinafter, recording device 1), which is an example of a recording device, will be described with reference to FIG. 1. FIG. 1 is a diagram showing the internal configuration of recording device 1. In FIG. 1, the x direction indicates the horizontal direction, the y direction (perpendicular to the paper) indicates the direction in which ejection ports are arranged in a recording head 8, which will be described later, and the z direction indicates the direction of gravity (vertical direction). The x direction, y direction, and z direction shown in FIG. 1 are used in the same sense in the drawings subsequent to FIG. 1. For example, the x direction, y direction, and z direction shown in FIG. 2 are the same as the x direction, y direction, and z direction shown in FIG. 1, respectively.

[0014] The recording device 1 is a multifunction device equipped with a print unit 2 and a scanner unit 3 above the print unit 2, and various processes related to recording and reading operations can be executed by the print unit 2 and the scanner unit 3 individually or in conjunction with each other. The scanner unit 3 is equipped with an ADF (automatic document feeder) and an FBS (flatbed scanner), and can read documents automatically fed by the ADF and read (scan) documents placed on the platen of the FBS by the user. Note that while FIG. 1 shows a multifunction device equipped with both the print unit 2 and the scanner unit 3, it may be configured not to include the scanner unit 3. FIG. 1 shows the recording device 1 in a standby state in which neither recording nor reading operations are being performed.

[0015] In the printing section 2, a first cassette 5A and a second cassette 5B for accommodating recording media (cut sheets) S are removably installed on the bottom of the housing 4 below the direction of gravity. The first cassette 5A accommodates relatively small recording media up to A4 size, while the second cassette 5B accommodates relatively large recording media up to A3 size, stacked flat. A first feeding unit 6A is provided near the first cassette 5A for separating and feeding the accommodated recording media one by one. Similarly, a second feeding unit 6B is provided near the second cassette 5B. When a recording operation is performed, the recording media S is selectively fed from one of the cassettes.

[0016] The transport roller 7, discharge roller 12, pinch roller 7a, spur 7b, guide 18, inner guide 19, and flapper 11 constitute a transport mechanism for guiding the recording medium S in a predetermined direction. The transport rollers 7 are disposed upstream and downstream of the recording head 8, and are drive rollers driven by a transport motor (not shown). The pinch roller 7a is a driven roller that nips the recording medium S together with the transport roller 7 and rotates. The discharge roller 12 is disposed downstream of the transport roller 7, and is a drive roller that is driven by a transport motor (not shown). The spur 7b, together with the transport roller 7 and the discharge roller 12 disposed downstream of the recording head 8, pinches and transports the recording medium S.

[0017] The guide 18 is provided on the transport path of the recording medium S and guides the recording medium S in a predetermined direction. The inner guide 19 extends in the y direction, has curved sides, and guides the recording medium S along the sides. The flapper 11 is for switching the direction in which the recording medium S is transported during double-sided recording. The discharge tray 13 is a tray for stacking and holding the recording medium S discharged by the discharge rollers 12 after the recording operation is completed.

[0018] The recording head 8 shown in FIG. 1 is a full-line type inkjet recording head, and has a plurality of ejection ports that eject ink according to recording data, arranged in the y direction in FIG. 1, corresponding to the width of the recording medium S. This inkjet recording head is also capable of color recording. When the recording head 8 is in the standby position, the ejection port surface 8a of the recording head 8 is capped by a cap unit 10 as shown in FIG. 1. When performing a recording operation, the print controller changes the orientation of the recording head 8 so that the ejection port surface 8a faces a platen 9. The platen 9 is made of a flat plate extending in the y direction, and supports the recording medium S, on which the recording operation is performed by the recording head 8, from the rear.

[0019] The recording head 8 does not have to be a full-line type recording head, and may be a serial scan type recording head in which the head reciprocates in a direction intersecting the conveying direction of the recording medium S.

[0020] The mounting section 14 is a portion where the ink cartridges are mounted. The mounting section 14 may be removable from the recording device 1. Here, an example is shown in which four ink cartridges are mounted in the mounting section 14, and each ink cartridge stores one of four colors of ink to be supplied to the recording head 8. The ink supply unit 15 is provided midway through a flow path connecting the mounting section 14 and the recording head 8, and adjusts the pressure and flow rate of the ink in the recording head 8 to an appropriate range. Here, an example is shown in which a circulation-type ink supply system is adopted, and the ink supply unit 15 adjusts the pressure of the ink supplied to the recording head 8 and the flow rate of the ink collected from the recording head 8 to an appropriate range.

[0021] The maintenance unit 16 includes a cap unit 10 and a wiping unit 17, and operates these at a predetermined timing to perform a maintenance operation on the recording head 8.

[0022] In this specification, the term "ink" includes any liquid that can be applied to a recording medium to form an image or to process the recording medium. Therefore, the term "ink" in this specification is a concept that includes any liquid that can be used for recording. The concept of recording is not particularly limited, and the ink can be applied to industrial applications, etc. For example, the ink can be used for biochip production, electronic circuit printing, semiconductor substrate production, and the like.

[0023] (Mounting part) Fig. 2 shows the mounting part 14 removed from the recording device 1 in Fig. 1 and viewed from diagonally above in the direction of gravity. Fig. 2(a) is a diagram showing the state before an ink cartridge is mounted in the mounting part 14. Fig. 2(b) is a diagram showing the state after an ink cartridge 20 has been mounted in the mounting part 14.

[0024] The mounting section 14 shown in FIG. 2 has four cylindrical hole forming members 14a. Each hole forming member 14a forms a hole 14d. The ink cartridge 20 is inserted into the hole 14d formed by the hole forming member 14a of the mounting section 14 and mounted in the mounting section 14 of the recording device. It is not necessary to provide a plurality of hole forming members 14a. For example, one hole forming member may form a plurality of holes. The diameter of the hole 14d (diameter in a direction perpendicular to the extension direction of the hole 14d) is preferably 50 mm or more and 90 mm or less. In addition, if the cross section of the hole 14d in the direction perpendicular to the extension direction is not a perfect circle, the diameter of the hole 14d is the circle equivalent diameter. Similarly, hereinafter, "diameter" and "diameter" in this specification are "circle equivalent diameter" unless otherwise specified.

[0025] A hole forming member 14b (a separate member) is provided on the rear side of the hole forming member 14a. When the ink cartridge is mounted, the side on which the hole forming member 14a is provided is the front side, and the side on which the hole forming member 14b is provided is the rear side. A hole (not shown in FIG. 2) is also formed in the hole forming member 14b, and the hole 14d of the hole forming member 14a and the hole of the hole forming member 14b communicate with each other inside the mounting portion 14. The ink cartridge 20 is inserted into this communicated hole. The hole forming member 14a and the hole forming member 14b do not need to be provided as separate members, and for example, a member in which the two hole forming members are integrated may be used. Examples of materials for forming the hole forming member 14a include ABS (acrylonitrile-butadiene-styrene copolymer resin), PPO (modified polyphenylene oxide), and HIPS (high impact polystyrene resin). Examples of materials for forming the hole forming member 14b include PE (polyethylene), PP (polypropylene), and PPO (modified polyphenylene oxide).

[0026] An ID recess 14c is provided at the opening on the front side of the hole 14d in the hole forming member 14a. The ID recess 14c is used to roughly align the ink cartridge 20 with respect to the mounting portion 14 when mounting the ink cartridge 20. In FIG. 2, the ID recess 14c is formed in a recessed shape by partially recessing the circular opening of the hole 14d.

[0027] Furthermore, the mounting portion 14 is provided with a plurality of electrical connection parts (not shown in FIG. 2) that come into contact with a plurality of pad electrodes of the ink cartridge and are capable of being electrically connected to the pad electrodes through the contact. In FIG. 2, the electrical connection parts are provided in the hole forming member 14b of the mounting portion 14.

[0028] An enlarged view of the hole forming member 14b around the electrical connection portion is shown in Fig. 3. Fig. 3 is a diagram showing a cross section of the mounting portion 14 (hole forming member 14b) in the area surrounded by A in Fig. 2(a). Note that Fig. 3 omits a part of the mounting portion 14, including the hole forming member 14a.

[0029] As shown in FIG. 3, the hole forming member 14b is a cylindrical member, and a hole 14f is formed therein. A tubular ink receiving tube 21 protrudes from the innermost surface of the hole 14f (the bottom surface of the hole 14f formed by the hole forming member 14b). The innermost surface of the hole 14f is circular, and the ink receiving tube 21 protrudes from the center of this circular surface in a direction perpendicular to the surface (extension direction). The ink receiving tube 21 is a tube that receives ink supplied from an ink cartridge mounted in the mounting portion 14. The ink receiving tube 21 is connected to the recording head of the recording device via an ink flow path, and supplies the ink received from the ink cartridge to the recording head. One ink receiving tube corresponds to one color of ink. Therefore, it is preferable to provide ink receiving tubes for the number of ink colors used. Examples of materials for forming the ink receiving tube 21 include SUS (stainless steel) and PPO (modified polyphenylene oxide). The diameter of the ink receiving tube 21 (diameter in a cross section perpendicular to the extension direction of the ink receiving tube 21) is preferably 2 mm or more and 5 mm or less, and more preferably 3 mm or more and 4 mm or less. The diameter of the hole 14f (diameter in a direction perpendicular to the extension direction of the hole 14f) is preferably 20 mm or more and 30 mm or less. The diameter of the hole 14f is preferably smaller than the diameter of the hole 14d.

[0030] As shown in Fig. 3, the mounting portion 14 has a plurality of electrical connection portions 22. The electrical connection portions 22 can be formed by connector pins or the like. The electrical connection portions 22 are provided in an electrical connection portion peripheral portion 23, which is a part of the mounting portion 14. Examples of materials for forming the electrical connection portions 22 include copper alloys (gold plating). Examples of materials for forming the electrical connection portion peripheral portion 23 include ABS (acrylonitrile-butadiene-styrene copolymer resin), PC (polycarbonate), etc.

[0031] The electrical connection parts 22 are sandwiched between a pair of positioning walls 23a, 23b of the electrical connection part peripheral part 23. The positioning walls 23a, 23b face each other with the electrical connection parts 22 in between, and serve as walls for positioning the ink cartridge when the ink cartridge is mounted, which will be described later. Materials for forming the positioning walls 23a, 23b include PPO (modified polyphenylene oxide), ABS (acrylonitrile-butadiene-styrene copolymer resin), SUS (stainless steel), and the like. The electrical connection part peripheral part 23 may be formed so as to be removable from the mounting part 14. The electrical connection part peripheral part 23 may not be provided in the hole forming member 14b, and may be provided independently of the hole forming member 14b.

[0032] Next, the configuration of the electrical connection part 22 and the electrical connection part peripheral part 23 will be described in more detail. First, FIG. 4(a) shows the periphery of the electrical connection part 22 as viewed from the direction of the arrow A in FIG. 3. The direction of the arrow A in FIG. 3 is the direction from below to above in the direction of gravity (z direction) in the posture in which the recording device is used. The posture in which the recording device is used is the posture in which the recording device is placed when recording is performed by the recording device, and is the posture shown in FIG. 1. In this specification, the "gravity direction" means the gravity direction in the posture in which the recording device is used, unless otherwise specified. From the direction of the arrow A, the hole forming member 14b and the electrical connection part 22 are visible. As will be described later, the hole forming member 14b visible here supports the pad electrodes of the ink cartridge and can regulate the movement of the pad electrodes in the up-down direction (gravity direction). By regulating this movement, the hole forming member 14b serves as a support member that stabilizes the installation of the ink cartridge. As shown in Fig. 4(a), when viewed from the direction of arrow A, hole forming member 14b covers a part of electrical connection portion 22. Note that hole forming member 14b is not limited to the form in which it covers a part of electrical connection portion 22 as shown here, and may be formed so as not to cover electrical connection portion 22 when viewed from the direction of Fig. 4(a).

[0033] Next, FIG. 4(b) shows the periphery of the electrical connection part 22 as viewed from the direction of arrow B in FIG. 3. The direction of arrow B in FIG. 3 is the direction from above to below in the direction of gravity. FIG. 4(c) shows the periphery of the electrical connection part 22 as viewed from the direction of arrow C in FIG. 3. The direction of arrow C is the direction from diagonally above to diagonally below in the direction of gravity. The electrical connection part 22 is not visible from the directions of arrow B and arrow C, but the connector 22a extending from the electrical connection part 22 toward the inside of the recording device is visible. The connector 22a extends from the electrical connection part 22 and serves as wiring that allows the electrical connection part 22 to be electrically connected to the inside of the recording device. Examples of materials for forming the connector 22a include copper alloy (gold plating) and the like.

[0034] A cross section taken along line A-A' in Fig. 4(b) is shown in Fig. 4(d). As described above, the ink receiving tube 21 protrudes from the innermost surface of the hole 14f formed by the hole forming member 14b. In addition, the electrical connection parts 22 are sandwiched between the positioning walls 23a and 23b.

[0035] Next, FIG. 4(e) shows the periphery of the electrical connection part 22 of the mounting part as viewed from the direction of the arrow D in FIG. 3. The direction of the arrow D in FIG. 3 is the direction from the front side to the back side when the ink cartridge is mounted in the mounting part. It is also the extension direction of the holes (holes 14d and 14f) formed by the hole forming member 14a and the hole forming member 14b. It is also the y direction, that is, the horizontal direction perpendicular to the direction of gravity. When viewed from the direction of the arrow D, the ink receiving tube 21 is visible on the back side of the hole 14f formed by the hole forming member 14b. In addition, the positioning wall 23a and the positioning wall 23b, which is another positioning wall arranged so as to overlap the positioning wall 23a, are visible on the back side of the positioning wall 23a. Note that the hole forming member 14a is omitted here, but if the hole forming member 14a is provided, the hole forming member 14a will be visible in front of the hole forming member 14b. The ink receiving tube 21 can be seen at the back of the hole formed by connecting the holes (holes 14d and 14f) formed by the hole forming member 14a and the hole forming member 14b. The ink cartridge is inserted toward the ink receiving tube 21 from the front side to the back side (y direction) along the insertion direction.

[0036] Furthermore, FIG. 5 shows a view of the periphery of the electrical connection portion 22 from another angle. FIG. 5(a) is a view of the periphery of the electrical connection portion 22 from the direction of the arrow E in FIG. 3. FIG. 5(b) is a view of the periphery of the electrical connection portion 22 from the direction of the arrow F in FIG. 3. The directions of the arrows E and F are views of the periphery of the electrical connection portion 22 from diagonally downward to diagonally upward in the direction of gravity. As described in FIG. 4(a), a part of the electrical connection portion 22 is covered by the hole forming member 14b below the electrical connection portion 22 in the direction of gravity. In FIG. 5, all four electrical connection portions 22 are formed by connector pins. Each connector pin has a triangular shape. When any point of the connector pin, particularly the apex of the triangle, comes into contact with the pad electrode of the ink cartridge, the connector pin is deformed so that this point (apex) is crushed, and an electrical contact is formed. The electrical contact can be considered as the center of gravity of the connector pin that is in contact with the pad electrode when the ink cartridge is completely attached (the center of gravity of the contact area between the connector pin and the pad electrode). This electrical contact allows the pad electrode and the connector pin (electrical connection part) to be electrically connected. When the pad electrode and the electrical connection part are electrically connected and electricity flows through the electrical contact, the recording device can detect, for example, that the ink cartridge is attached. In addition, the recording device can read information (characteristic information such as ink color, remaining ink amount information, etc.) contained in a chip or the like provided on the ink cartridge and recognize the type of the attached ink cartridge.

[0037] <Ink cartridges> An ink cartridge that can be installed in the recording apparatus shown in FIG. 1 will be described.

[0038] The external appearance of the ink cartridge is shown in Fig. 6. Fig. 6(a) is a diagram showing the external appearance of the ink cartridge 20. Figs. 6(b) to (d) are diagrams showing the ink cartridge 20 shown in Fig. 6(a) from different angles.

[0039] 6 contains one color of ink. However, multiple colors of ink may be stored separately in one ink cartridge 20, and the stored inks of multiple colors may be supplied to separate ink receiving tubes. Furthermore, a set of ink cartridges 20 may contain multiple ink cartridges containing the same color of ink.

[0040] The ink cartridge 20 shown in Fig. 6 is configured based on a cylindrical (cylinder) shaped housing. As will be described later, the shape of the housing is not limited to a cylindrical shape, and may be a polygonal prism shape such as a triangular prism shape or a square prism shape. Alternatively, it may be a cone shape or a polygonal pyramid shape such as a triangular pyramid shape or a square pyramid shape.

[0041] The ink cartridge 20 has at least a first portion 20a, a second portion 20b, and a third portion 20c as portions facing outward of the ink cartridge 20. The portion on the side where the insertion portion (ink lead-out portion) 24 described later is located is the first portion 20a. The portion opposite the first portion 20a is the second portion 20b. The first portion 20a and the second portion 20b are connected by the third portion 20c. The first portion 20a and the second portion 20b are ends of the ink cartridge 20, and the first portion 20a can also be called the first end and the second portion 20b can also be called the second end. The third portion 20c is between the first portion 20a and the second portion 20b, and in FIG. 6, the third portion 20c extends along a direction perpendicular to the first portion 20a and the second portion 20b. The first portion 20a, the second portion 20b, and the third portion 20c may each be a surface as shown in FIG. 6. Alternatively, at least one of the first portion 20a, the second portion 20b, and the third portion 20c may not be a surface. For example, if the ink cartridge 20 has a triangular pyramid shape, the first portion 20a may be the base of the triangular pyramid, the second portion 20b may be the apex on the base of the triangular pyramid (opposite the base), and the third portion 20c may be the side of the triangular pyramid. In this case, the second portion 20b is the apex, not a surface.

[0042] The part of the ink cartridge 20 facing outward refers to the part facing away from the central axis of the ink cartridge 20 (the axis that passes through the center of gravity of the ink cartridge 20 and extends parallel to the longitudinal direction of the ink cartridge 20). For example, the side of the cylindrical ink cartridge 20 shown in FIG. 6 faces away from the central axis of the ink cartridge 20, and is therefore a part facing outward. On the other hand, for example, the top surface (top surface within the cavity 32) constituting the cavity 32 shown in FIG. 20 is a part exposed to the outside (cavity) of the ink cartridge 20. However, since it faces in a direction approaching the central axis of the ink cartridge 20, it is not a part facing outward, but a part facing inward.

[0043] The first part 20a has an insertion part 24 into which the ink receiving tube 21 shown in FIG. 3 etc. is inserted. Therefore, the first part 20a can also be said to be the front part of the ink cartridge 20. In FIG. 6, the first part 20a is a surface. The insertion part 24 may be provided with a seal member having an opening. If a seal member is provided, the ink receiving tube is inserted into the opening of the seal member of the insertion part 24. The diameter of the insertion part 24 (the diameter in the direction perpendicular to the direction in which the ink receiving tube is inserted) is preferably 2 mm or more and 5 mm or less. The diameter of the first part 20a including the insertion part 24 is preferably 8 mm or more and 14 mm or less.

[0044] Ink is stored inside the ink cartridge 20. The ink stored in the ink cartridge 20 is supplied to the recording device through an ink receiving tube inserted into the insertion portion 24 (or an opening in the sealing member if a sealing member is present) and used for recording. As such, the insertion portion 24 is a portion that outputs the ink stored in the ink cartridge 20, and therefore can also be called an ink output portion.

[0045] The ink cartridge 20 has a large diameter portion having a relatively larger diameter (than the small diameter portion) and a small diameter portion having a relatively smaller diameter than the large diameter portion. The diameter here is the equivalent diameter of a circle in the cross section of the ink cartridge 20 in a direction perpendicular to the direction from the first portion 20a to the second portion 20b. The ink cartridge 20 in FIG. 6 has a cylindrical shape, and the diameter is the diameter of a circle in the cross section along a direction perpendicular to the height direction of the cylinder. The portion of the small diameter portion on the side where the insertion portion 24 is located is the first portion 20a. The second portion 20b is provided in the large diameter portion. The third portion 20c connecting the first portion 20a and the second portion 20b is a surface that spans the large diameter portion and the small diameter portion and has a step between the large diameter portion and the small diameter portion. The ink cartridge 20 may not have a large diameter portion or a small diameter portion, may have a constant diameter, or may have a shape without a step in the third portion 20c. The ink cartridge 20 shown in Fig. 6 has a cylindrical shape, with the first portion 20a and the second portion 20b forming the bottom surface of the cylinder, and the third portion 20c forming the side surface of the cylinder. As described above, the ink cartridge 20 is not limited to a cylindrical shape. The first portion 20a and the second portion 20b may have a stepped shape.

[0046] The diameter of the large diameter part of the ink cartridge 20 is preferably 50 mm or more and 80 mm or less. The diameter of the small diameter part of the ink cartridge 20 is preferably 20 mm or more and 30 mm or less. The diameter of the ink cartridge 20 can be different depending on the amount and type of ink stored. For example, in an ink cartridge set, for a large-capacity ink cartridge, the diameter of the large diameter part is 70 mm or more and 80 mm or less (e.g., 75 mm). And for a small-capacity ink cartridge, the diameter of the large diameter part is 50 mm or more and 60 mm or less (e.g., 55 mm). However, it is preferable that the diameter of the small diameter part is the same between ink cartridges from the viewpoint of mounting. Therefore, for example, the diameter of the small diameter part is 20 mm or more and 30 mm or less (e.g., 25 mm) in both the large-capacity ink cartridge and the small-capacity ink cartridge. In this way, in an ink cartridge set that stores different amounts and types of ink, it is preferable that the diameter of the small diameter part is the same between ink cartridges and the diameter of the large diameter part is different.

[0047] The length of the large diameter portion of the ink cartridge 20 in a direction parallel to the direction from the first portion 20a to the second portion 20b is preferably 190 mm or more and 220 mm or less. The length of the small diameter portion of the ink cartridge 20 in a direction parallel to the direction from the first portion 20a to the second portion 20b is preferably 20 mm or more and 30 mm or less. From the viewpoint of mounting, it is preferable that the above-mentioned lengths of the large diameter portion and the small diameter portion of the ink cartridge 20 are the same even if the amount and type of ink stored are different as in the above-mentioned ink cartridge set. In this specification, the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 (the direction from the second portion 20b to the first portion 20a) is the direction in which the line connecting the first portion 20a to the second portion 20b at the shortest distance extends. This direction is along the longitudinal direction of the ink cartridge 20 in FIG. 6. It is also parallel to the longitudinal direction of the ink cartridge 20.

[0048] Next, a description will be given of the protruding portion 25 and the ID convex portion 28. The protruding portion 25 and the ID convex portion 28 are provided on the third portion 20c of the ink cartridge 20.

[0049] In Fig. 6, protrusion 25 is provided at the small diameter portion of third portion 20c, and protrudes further than the periphery of protrusion 25 constituting third portion 20c. That is, the protruding portion in third portion 20c is protrusion 25. The periphery of protrusion 25 here forms the side surface (circumferential surface) of a cylinder, and protrusion 25 protrudes from the side surface of this cylinder.

[0050] The protrusion 25 has a ceiling surface 25a which is the ceiling of the protrusion 25, and protrusion side surfaces 25b. Here, the protrusion side surfaces 25b have four surfaces, and the ceiling surface 25a connects these surfaces at the top. A chip-shaped electrode section 26 having a memory element that stores information on the color and remaining amount of ink is provided on the ceiling surface 25a. The electrode section 26 is provided with a plurality of pad electrodes 27 which come into contact with the electrical connection section of the recording device (mounting section) and can be electrically connected to the electrical connection section. The pad electrodes 27 and the electrode section 26 may be provided at separate positions, in which case they may be electrically connected by wiring or the like.

[0051] The ceiling surface 25a is a portion of the ink cartridge 20 that faces outward. The ceiling surface 25a is a portion of the portion that connects the first portion 20a and the second portion 20b, and is therefore a portion of the third portion 20c. Therefore, it can be said that the electrode portion 26 and the multiple pad electrodes 27 provided on the ceiling surface 25a are provided on the third portion 20c. The electrode portion 26 and the multiple pad electrodes 27 are provided in a position on the third portion 20c that is closer to the first portion 20a than the second portion 20b.

[0052] The size of the ceiling surface 25a of the protrusion 25 is preferably such that the maximum length of one side is 9 mm or more and 16 mm or less. The size of the ceiling surface 25a of the protrusion 25 refers to the size of the ceiling surface 25a of the protrusion 25 when viewed from the side where the pad electrode 27 is provided (the side facing the pad electrode 27).

[0053] The height of the protrusion 25 is preferably 3 mm or more and 10 mm or less. The height of the protrusion 25 is more preferably 8 mm or less. The height of the protrusion 25 refers to the vertical height of the protrusion 25 protruding from the surrounding surface, and is the length of the portion indicated by "A" in Fig. 6(a). As in Fig. 6(a), when the protrusion 25 has portions with different heights, the height is taken as the average value of 100 points randomly distributed within the protrusion 25.

[0054] The protrusion 25 is preferably arranged at a position 5 mm or more and 10 mm or less from the first portion 20a in the distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. Also, it is more preferable that the protrusion 25 is arranged at a position 6 mm or more and 7 mm or less from the first portion 20a. On the other hand, the protrusion 25 is preferably arranged at a position 20 mm or more and 25 mm or less from the first portion 20a in the distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. Also, it is more preferable that the protrusion 25 is arranged at a position 22 mm or more and 23 mm or less from the first portion 20a. The direction from the first portion 20a to the second portion 20b coincides with the longitudinal direction of the ink cartridge 20 in FIG. 6. Also, in this specification, "the portion on the first portion 20a side" means "the portion closest to the first portion 20a". Similarly, "the portion on the side of the second portion 20b" means "the portion closest to the second portion 20b."

[0055] The electrode portion 26 may be composed of only the pad electrode 27. In this case, the pad electrode 27 is directly disposed on the ceiling surface 25a of the protruding portion 25.

[0056] In FIG. 6, the positions of the centers of gravity of the multiple pad electrodes 27 are aligned on the ceiling surface 25a of the protruding portion 25 in a direction perpendicular to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 (the longitudinal direction in FIG. 6). In other words, the positions of the centers of gravity of the multiple pad electrodes 27 are aligned in a direction parallel to a direction (the lateral direction in FIG. 6) perpendicular to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 (the longitudinal direction in FIG. 6). Each pad electrode 27 is rectangular in shape. The long and short sides of the rectangle are inclined with respect to the longitudinal and lateral directions of the ink cartridge 20.

[0057] The ID protrusion 28 is provided on the large diameter portion of the third portion 20c. The ID protrusion 28 protrudes from the surroundings of the ID protrusion 28 in the third portion 20c. The surroundings of the ID protrusion 28 form the side surface (circumferential surface) of the cylindrical ink cartridge, and the ID protrusion 28 protrudes from this side surface.

[0058] The ID protrusion 28 is preferably disposed at a position on the first portion 20a side that is 40 mm or more and 50 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. Also, it is more preferable that the ID protrusion 28 is disposed at a position that is 41 mm or more and 45 mm or less from the first portion 20a. Meanwhile, the ID protrusion 28 is preferably disposed at a position that is 50 mm or more and 60 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. Also, it is more preferable that the ID protrusion 28 is disposed at a position that is 55 mm or more and 58 mm or less from the first portion 20a.

[0059] The height of the ID protrusion 28 is preferably 3 mm or more and 10 mm or less. The height of the ID protrusion 28 is more preferably 4 mm or more and 5 mm or less. The height of the ID protrusion 28 refers to the vertical height from the surroundings of the ID protrusion 28 that protrudes from the surroundings, and is the length of the portion indicated by "B" in Figure 6(d). When the ID protrusion 28 has portions with different heights, the height of the ID protrusion 28 is taken as the average value of 100 points randomly distributed within the ID protrusion 28.

[0060] Examples of materials for forming the protrusion 25 include PE (polyethylene), PP (polypropylene), etc. Examples of materials for forming the electrode portion 26 include glass epoxy or polyimide flexible printed boards, etc. Examples of materials for forming the pad electrode 27 include Ni, Au, etc. Examples of materials for forming the ID protrusion 28 include PE (polyethylene), PP (polypropylene), etc.

[0061] 7(a) and (b) show the internal structure of the ink cartridge 20. The housing 70 constituting a part of the third portion 20c has a two-layer structure of an outer layer 70a and an inner layer 70b. The outer layer 70a is the outer layer shown by the solid line in FIG. 7(b) and is preferably made of a material with high rigidity. On the other hand, the inner layer 70b is the inner layer shown by the dotted line in FIG. 7(b) and is preferably made of a flexible material. That is, the outer layer 70a is preferably more rigid than the inner layer 70b. The outer layer 70a and the inner layer 70b are separate bodies and are separable from each other. The outer layer 70a constitutes the outer part of the housing. The inner layer 70b has a flexible bag shape and constitutes the inner part of the housing. Ink is stored inside (inside) the inner layer 70b, and the outer layer 70a covers the outside. The outer layer 70a and the inner layer 70b each have an opening, and the two openings are arranged in overlapping positions. The opening of the inner layer 70b is joined to the joint member 73 to form a closed space. The ink is stored in this closed space. The outer layer 70a and the inner layer 70b are preferably molded by injection blow molding. Examples of materials for forming the outer layer 70a include PET (polyethylene terephthalate) and PBT (polybutylene terephthalate). Examples of materials for forming the inner layer 70b include PE (polyethylene) and PP (polypropylene).

[0062] The housing 70 is joined to the cover member 78. The housing 70 constitutes a part of the large diameter part of the ink cartridge. The cover member 78 constitutes a part of the large diameter part and the small diameter part of the ink cartridge. The insertion part 24 is provided in the small diameter part of the cover member 78. Examples of materials for forming the cover member 78 include PE, PP, ABS (acrylonitrile-butadiene-styrene copolymer resin), etc. The length of the cover member 78 is preferably 60 mm or more and 80 mm or less. More preferably, it is 60 mm or more and 70 mm or less. The length of the cover member 78 is the length in the left-right direction of FIG. 7(a). Also, if the ink cartridge 20 has a shape as shown in FIG. 7, the length of the cover member 78 is the length in the direction along the longitudinal direction of the ink cartridge 20.

[0063] The outward facing portion of the housing 70 (third portion 20c of the ink cartridge) has a screw-shaped groove 80 on the outer layer. Providing the screw-shaped groove 80 increases the strength of the housing 70. The groove 80 may be a single groove, or may be multiple grooves that are not connected to each other. From the standpoint of the strength of the housing 70, it is preferable that the extension direction of the groove 80 is inclined with respect to the longitudinal direction of the ink cartridge.

[0064] The ink cartridge 20 supplies ink to the outside of the ink cartridge 20 (recording device), and when the amount of ink stored therein decreases, the inner layer 70b deforms according to the volume of the ink that has decreased. When the stored ink is finally used up, the inner layer 70b is crushed. On the other hand, when the outer layer 70a is formed of a material with high rigidity, the outer layer 70a is less likely to deform and maintains its shape. In the housing 70, an air vent 71 is opened in the second part 20b of the ink cartridge. Air is introduced from the air vent 71 into the space between the outer layer 70a and the inner layer 70b. By covering the air vent 71 except for a small portion with the label 72, the evaporation of the ink can be effectively suppressed. Examples of materials for forming the label 72 include PP (polypropylene) film and paper.

[0065] The joint member 73 has an insertion portion 24 at the tip into which the ink receiving tube is inserted. That is, when the joint member 73 is present, the joint member 73 constitutes at least a part of the first portion of the ink cartridge. The insertion portion 24 is provided with a seal member 24a having an opening, and the supply port valve 74 is urged toward the opening side by a spring 75 to seal the ink cartridge except when the ink cartridge is attached to the recording device. Examples of materials for forming the seal member 24a include rubber and elastomer. Examples of materials for forming the spring 75 include SUS (stainless steel). The other end of the spring 75 closes the internal space of the joint member 73 and the inside of the housing by an air backflow suppression valve 76. The air backflow suppression valve 76 is disposed so that air does not flow back during the air removal process in the housing after ink is injected during the manufacturing process of the ink cartridge. Examples of materials for forming the air backflow suppression valve 76 include PE (polyethylene) and PP (polypropylene). After ink is injected into the housing (inner layer), the joint member 73 is joined to the housing, and air in the housing is released through the air release port 77 of the joint member 73. The air release port 77 is then sealed with a film, and the joint member 73 and the inside of the housing are closed by an air backflow prevention valve 76 to prevent air from flowing back into the housing between the air release process and the film welding process. The joint member 73 is provided with a protruding portion 25, and an electrode portion 26 is provided on the protruding portion 25. The joint member 73 is inserted into the cover member 78 and is exposed to the outside through an opening 78a of the cover member 78. The insertion portion 24 is also exposed to the outside through the opening 78a of the cover member 78. In this case, the joint member 73 constitutes a part of the first portion 20a and a part of the third portion 20c of the ink cartridge.

[0066] When ink is supplied from the ink cartridge, the ink receiving tube is inserted into the joint member 73 from the insertion portion 24, and the pressure inside the joint member 73 is reduced. This reduced pressure opens the air backflow suppression valve 76. Then, the ink inside the housing moves into the joint member 73 through the ink flow path member 79, and is supplied to the recording device through the ink receiving tube. The ink flow path member 79 collects ink that accumulates in the housing downward in the direction of gravity and supplies it to the ink receiving tube. For this reason, as shown in FIG. 7(b), it is preferable that the end farther from the insertion portion 24 is downward in the direction of gravity, and the end closer to the insertion portion 24 is upward in the direction of gravity. Also, as shown in FIG. 7(b), it is preferable that the ink flow path member 79 is configured to be inclined from the downward direction of gravity to the upward direction of gravity from the second part side to the first part side of the ink cartridge. Examples of materials for forming the ink flow path member 79 include PE (polyethylene) and PP (polypropylene).

[0067] <Ink cartridge installation operation> The ink cartridge can be attached to the attachment portion of the recording device. The attachment operation when attaching the ink cartridge to the attachment portion of the recording device will be described below.

[0068] Figure 8 is a diagram showing the process of mounting an ink cartridge in a mounting portion. In Figure 8, for the mounting portion 14 of the recording device, part of the hole forming member is shown by dotted lines for ease of viewing. Also, the groove 80 of the third portion 20c of the ink cartridge 20 shown in Figures 6 and 7 is omitted. Note that the mounting portion 14 shown here does not have the hole forming member 14b that covers part of the electrical connection portion 22 as described in Figure 4(a).

[0069] Before the state shown in FIG. 8(a) is reached, the ink cartridge 20 is first inserted into the hole of the hole forming member on the first portion 20a side. Then, the relative positions of the ink cartridge 20 and the mounting portion 14 are roughly aligned by the ID protrusion 28 of the ink cartridge 20 and the ID recess 14c of the mounting portion 14. If an ink cartridge other than the ink cartridge that should be inserted into the hole of the hole forming member is about to be inserted, the insertion is suppressed because the ID protrusion 28 and the ID recess 14c do not match in shape. For example, if an ink cartridge that stores magenta is to be inserted into a hole where a cyan ink cartridge should be inserted, the shapes of the ID protrusion 28 and the ID recess 14c do not match, and the ink cartridge cannot be inserted into the hole. On the other hand, if an ink cartridge that stores cyan is to be inserted into a hole where a cyan ink cartridge should be inserted, the shapes of the ID protrusion 28 and the ID recess 14c match, and the ink cartridge can be inserted into the hole.

[0070] When the shape of the ID convex portion 28 matches the shape of the ID concave portion 14c, the ink cartridge 20 is inserted into the hole of the mounting portion 14 along the insertion direction with the first portion 20a at the front. FIG. 8(a) is a diagram showing an intermediate stage of this insertion. The insertion direction of the ink cartridge 20 is the direction with the first portion 20a at the front, which can also be said to be the direction with the insertion portion 24 at the front. Hereinafter, the insertion direction with the first portion 20a of the ink cartridge 20 at the front will be simply referred to as the "insertion direction of the ink cartridge (20)". In FIG. 8(a), the insertion direction of the ink cartridge 20 is indicated by an arrow. The insertion direction of the ink cartridge 20 matches the direction from the second portion 20b of the ink cartridge 20 toward the first portion 20a (and the longitudinal direction of the ink cartridge 20).

[0071] As shown in Fig. 8(a), when the ID recess 14c of the mounting portion 14 extends in the extension direction of the hole formed by the hole forming member, the ink cartridge 20 is inserted while aligning the ID protrusion 28 with the ID recess 14c. In Fig. 8, the insertion direction of the ink cartridge 20 also coincides with the extension direction of the hole formed by the hole forming member.

[0072] FIG. 8(b) is a diagram showing a state where the ink cartridge 20 has been inserted in the insertion direction. When the ink cartridge 20 is inserted to the state shown in FIG. 8(b), it is preferable that the pad electrode 27 of the ink cartridge 20 does not come into contact with the recording device (the mounting portion 14, particularly the hole forming member 14a). By inserting the ink cartridge 20 to the state shown in FIG. 8(b) without touching the pad electrode 27 to the recording device, it is possible to suppress damage to the pad electrode 27 during the insertion to the state shown in FIG. 8(b). For this reason, it is preferable to provide a space so that the pad electrode 27 does not come into contact with the hole formed by the hole forming member of the mounting portion 14, for example, so that the pad electrode 27 of the electrode portion 26 does not come into contact with the recording device while the ink cartridge 20 is being inserted in the insertion direction. Alternatively, the diameter of the hole 14d shown in FIG. 2(a) can be made large so that the pad electrode 27 does not come into contact with the hole forming member 14a.

[0073] 8(b), the ink receiving tube 21 of the mounting portion is inserted into the insertion portion 24. That is, the ink receiving tube 21 is inserted into the insertion portion 24 while the ink cartridge 20 is being inserted straight along the insertion direction into the hole forming member.

[0074] Next, for example, when the protruding portion 25 comes into contact with the mounting portion, the ink cartridge 20 is rotated as shown in Fig. 8(c). The trigger for rotating the ink cartridge 20 is not limited to this. For example, a mark may be placed on the ink cartridge 20, and the user may start rotating the ink cartridge 20 using this mark as a guide. Alternatively, the ink cartridge 20 may be pushed by closing the cover of the recording device, and the ink cartridge 20 may be inserted in the insertion direction up to a certain point, and then start rotating from that point.

[0075] The rotation of the ink cartridge 20 shown in FIG. 8(c) is a rotation about an axis along the insertion direction of the ink cartridge 20. When the ink cartridge 20 is inserted in the insertion direction along the central axis of the ink cartridge 20, the rotation is about the central axis of the ink cartridge 20. Alternatively, it can be said that the rotation is about an axis along the extension direction of the ink receiving tube 21. Also, in the case of the ink cartridge 20 having the shape shown in FIG. 8, the rotation is about an axis along the longitudinal direction of the ink cartridge 20. When rotating as shown in FIG. 8(c), the ink cartridge 20 is not inserted in the above-mentioned insertion direction. This rotation of the ink cartridge 20 changes the state shown in FIG. 8(c) to the state shown in FIG. 8(d). In the state shown in FIG. 8(d), the protrusion 25, the electrode portion 26 on the protrusion 25, and the multiple pad electrodes 27 start to be inserted between two positioning walls (only one positioning wall 23b is shown in FIG. 8) that face each other with the multiple electrical connection portions 22 in between. When the rotation is further continued and the state shown in FIG. 8(e) is reached, the protrusion 25, the electrode portion 26, and the multiple pad electrodes 27 are sandwiched between the positioning walls, and the electrical connection portion 22 of the mounting portion comes into contact with the center of gravity of each of the multiple pad electrodes 27. In this state, the pad electrodes 27 can be electrically connected to the electrical connection portion 22. When the pad electrodes 27 come into contact with the electrical connection portion 22 and become electrically connectable, the mounting of the ink cartridge 20 to the mounting portion is completed. Note that it is not necessary for the center of gravity of the pad electrodes 27 to come into contact with the electrical connection portion 22, but it is preferable from the viewpoint of reliability of electrical connection that the center of gravity of the pad electrodes 27 comes into contact with the electrical connection portion 22. Also, it is preferable to provide a space in the mounting portion so that the ID protrusion 28 does not come into contact with the hole forming member during this rotation. Note that all of the multiple pad electrodes 27 shown in FIG. 8 have a rectangular shape, and the center of each pad electrode 27 coincides with the center of gravity of each pad electrode 27.

[0076] When the installation is complete as shown in Figure 8(e), the preferred position of the tip of the ink receiving tube 21 is as follows. That is, in terms of the distance in a direction parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20, it is preferred that the tip be 10 mm or more and 20 mm or less from the first portion 20a of the ink cartridge 20. More preferably, it is 11 mm or more and 15 mm or less from the first portion 20a. In Figure 8, the direction from the first portion 20a to the second portion 20b coincides with the longitudinal direction of the ink cartridge 20 and the insertion direction.

[0077] 9(a)-(d) show the movement of the pad electrodes 27 caused by the rotation of the ink cartridge 20 shown in FIG. 8(b)-(e) from different angles. FIG. 9 is an enlarged view of the periphery of the electrical connection portion periphery 23 from a direction perpendicular to the insertion direction of the ink cartridge 20. FIG. 9(a)-(d) correspond to FIG. 8(b)-(e), respectively. As shown in FIG. 9(a)-(d), the protrusion 25, the electrode portion 26, and the multiple pad electrodes 27 are inserted between two positioning walls facing each other with the multiple electrical connection portions 22 interposed therebetween by the rotation of the ink cartridge 20. Then, the multiple pad electrodes 27 of the electrode portion 26 come into contact with the electrical connection portions 22 of the electrical connection portion periphery 23, and become electrically connectable with the electrical connection portions 22. As shown in FIG. 9, while the ink cartridge 20 is being rotated, the ink cartridge 20 is not inserted in the insertion direction.

[0078] When the ink cartridge 20 is rotated, the positioning walls (positioning walls 23a, 23b in FIG. 4) come into contact with the protrusion 25 (particularly the protrusion side surface 25b of the protrusion 25), making it easier for the ink cartridge 20 to rotate along the shape of the positioning walls. The positioning walls can determine the position of the protrusion 25 during rotational mounting. The contact between the protrusion 25 and the positioning walls positions the pad electrodes 27 of the ink cartridge 20 relative to the electrical connection portion 22 of the mounting portion.

[0079] Even if the ink cartridge 20 does not have a protrusion 25, it is possible to easily position the pad electrodes 27 of the electrode portion 26 and the electrical connection portion 22 of the mounting portion by bringing the electrode portion 26 into contact with the positioning wall. In this case, the ink cartridge 20 is rotated while the side surface of the electrode portion 26 is brought into contact with the positioning wall.

[0080] As described above, if the protrusion 25 (protrusion side surface 25b) and electrode portion 26 of the ink cartridge 20 are rotated in contact with the positioning wall, installation by rotation becomes easier. In this case, the movement direction of the pad electrode 27 when the ink cartridge 20 is rotated is along the extension direction of the positioning wall. Furthermore, the movement direction of the pad electrode 27 when the ink cartridge 20 is rotated can be made parallel to the extension direction of the positioning wall.

[0081] When the rotational mounting is performed as described above, the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20, which is shown by the arrows in Figures 8(a), 8(b), and 9(a). The movement direction of the pad electrode 27 coincides with the rotation direction shown by the arrows in Figures 8(c), 8(d), 9(b), and 9(c). The movement of the pad electrode 27 makes the pad electrode 27 electrically connectable to the electrical connection part 22 of the mounting part.

[0082] In this way, in the case of rotational mounting, the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20 when the ink cartridge 20 is mounted. Also, the ink cartridge 20 can rotate around an axis along the insertion direction (or the extension direction of the ink receiving tube, the direction from the first part 20a to the second part 20b (the direction from the second part 20b to the first part 20a), the longitudinal direction). The ink lead-out part (insertion part) 24 is provided on this rotation axis. The pad electrode 27 moves as described above due to the rotation. Therefore, even if the ink cartridge 20 is inserted strongly in the insertion direction, the impact that the pad electrode 27 and the electrical connection part 22 receive when the pad electrode 27 comes into contact with the electrical connection part 22 can be reduced. This is because the insertion direction of the ink cartridge 20 and the movement direction of the pad electrode 27 are different. In FIG. 8 and FIG. 9, the pad electrode 27 does not come into contact with the electrical connection part 22 when the ink cartridge 20 is inserted in the insertion direction. Since it is possible to reduce the impact on the pad electrode 27 and the electrical connection portion 22, it is possible to improve the contact between the pad electrode 27 and the electrical connection portion 22. In addition, it is possible to suppress the occurrence of deformation of the pad electrode 27 and the electrical connection portion 22.

[0083] In contrast, consider a case where, when the ink cartridge 20 is inserted in the insertion direction, the pad electrode 27 moves only in the same direction as the ink cartridge 20 insertion direction, and the pad electrode 27 becomes electrically connectable to the electrical connection portion 22. In this case, the impact caused by the insertion of the ink cartridge 20 in the insertion direction is easily transmitted directly to the pad electrode 27 that contacts the electrical connection portion 22. The speed of insertion of the ink cartridge 20 in the insertion direction tends to be fast. Therefore, if the impact caused by the insertion in the insertion direction is easily transmitted to the pad electrode 27 and the electrical connection portion 22 when the pad electrode 27 and the electrical connection portion 22 are connected, the contact between the pad electrode 27 and the electrical connection portion 22 may not be good. As a result, the pad electrode 27 and the electrical connection portion 22 may be deformed.

[0084] After insertion in the insertion direction, the angle by which the ink cartridge 20 rotates (the angle by which the ink cartridge 20 is rotated) is preferably 180 degrees or less in consideration of operability. More preferably, it is 135 degrees or less, and even more preferably, it is 100 degrees or less. Also, from the viewpoint of operability, it is preferably 10 degrees or more, more preferably 45 degrees or more, and even more preferably 80 degrees or more. The angle by which the ink cartridge 20 rotates is most preferably 90 degrees. The angle by which the ink cartridge 20 rotates is the rotation angle when a certain point of the ink cartridge 20 rotates around the center of gravity of the cross section in the direction perpendicular to the insertion direction of the ink cartridge when the ink cartridge is viewed from the first part side. The certain point of the ink cartridge 20 is, for example, the pad electrode 27 or the ID protrusion 28. Explained with reference to the figure, the angle by which the ink cartridge 20 rotates is the angle by which the ink cartridge 20 rotates from FIG. 8(b) to FIG. 8(e), or from FIG. 9(a) to FIG. 9(d). In these views, the ink cartridge 20 is rotated 90 degrees.

[0085] <Ink cartridge removal procedure> The ink cartridge 20 is removed from the mounting portion, for example, when the ink stored therein has been consumed and the ink cartridge needs to be replaced. The removal operation for removing the ink cartridge 20 from the mounting portion will be described.

[0086] The ink cartridge 20 can be removed by basically reversing the movement of the installation. First, the ink cartridge 20 is rotated in the opposite direction to the rotation direction when it was installed. The rotation causes the pad electrode 27 to lose contact with the electrical connection portion 22. Next, if the positioning walls 23a, 23b and the protrusion 25 are provided, the protrusion 25, electrode portion 26, and pad electrode 27 come out from between the positioning walls 23a, 23b. The direction of this movement is opposite to the movement direction of the pad electrode 27 described above.

[0087] Ink cartridge 20 is rotated until protruding portion 25, if any, is no longer sandwiched between positioning walls 23a, 23b. When protruding portion 25 is no longer sandwiched between positioning walls 23a, 23b, ink cartridge 20 can be removed, so ink cartridge 20 is pulled out straight in the direction opposite to the insertion direction described above.

[0088] In this manner, removal of the ink cartridge 20 from the mounting portion is completed.

[0089] If the ink cartridge 20 is rotated and then pulled out, the speed at which the ink cartridge 20 is removed (the moving speed of a certain point on the ink cartridge 20) tends to be slow due to the rotation. This makes it possible to ensure good contact between the pad electrode 27 and the electrical connection portion, and further prevents the ink receiving tube 21 from being suddenly pulled out of the insertion portion 24, making it less likely that ink will splash around the ink receiving tube 21 or the insertion portion 24.

[0090] On the other hand, if the ink cartridge 20 is removed by simply pulling it straight out in the direction opposite to the insertion direction, the ink cartridge 20 tends to be removed quickly, which may result in ink splashing at the ink receiving tube 21 or the insertion portion 24 as described above.

[0091] The removal of the ink cartridge 20 described above is merely an example, and is not limited to this. Removal does not necessarily have to be performed in the reverse order to the installation.

[0092] [Second embodiment] The second embodiment will be described focusing on the differences from the first embodiment. In the following description of each embodiment, the characteristic features of each embodiment will be described, and the description of the common features may be omitted.

[0093] In the first embodiment, an example has been described in which the electrical connection portion 22 of the mounting portion comes into contact with the center of gravity of each of the multiple pad electrodes 27 of the ink cartridge 20, and the pad electrodes 27 become electrically connectable to the electrical connection portion 22. The points at which the electrical connection portion 22 and the pad electrodes 27 come into contact and become electrically connectable are electrical contact points, and therefore, for each pad electrode 27, the electrical contact points coincide with the center of gravity.

[0094] In the first embodiment, the ink cartridge 20 is rotated as shown in FIG. 9. The moving direction of the pad electrode 27 in this rotation is parallel to the direction connecting the centers of gravity of the multiple pad electrodes 27, and is also the same direction. Since the centers of gravity of each pad electrode 27 are aligned with the electrical contacts, when considering the electrical contacts of each pad electrode, in the first embodiment, the direction in which the electrical contacts of each pad electrode are arranged is parallel to the moving direction of the pad electrode 27, and is also the same direction. In this specification, the direction in which the electrical contacts of each pad electrode are arranged in the multiple pad electrodes refers to the direction in which the line connecting the electrical contacts of each pad electrode between the multiple pad electrodes extends. It is not necessary to consider all the pad electrodes of the multiple pad electrodes, but it is sufficient to consider the direction in which the electrical contacts of each pad electrode are arranged in at least two pad electrodes. In addition, the moving direction of the pad electrode moves in a curved line in the first embodiment, for example, but in this specification, in such a case, the tangent of the curve at the point where the curve and the pad electrode intersect is the moving direction of the pad electrode. In addition, when it is difficult to identify the position of the electrical contacts on the pad electrodes, the direction in which the electrical contacts of each pad electrode are arranged may be substituted by the direction connecting the downstream end of the pad electrode closest to the first portion 20a in the rotational direction and the upstream end of the pad electrode closest to the second portion 20b in the rotational direction.

[0095] 10 shows the configuration of an ink cartridge 20 in the second embodiment. In the second embodiment, the multiple pad electrodes 27 are arranged so that the direction in which the electrical contacts of each pad electrode 27 are lined up intersects with the movement direction of the pad electrode 27. In other words, the direction in which the electrical contacts of each pad electrode 27 are lined up is not parallel to the movement direction of the pad electrode 27. Note that the intersecting direction also includes the perpendicular direction.

[0096] The ink cartridge 20 shown in Fig. 10 will be further described. In Fig. 10, the multiple pad electrodes 27 of the electrode section 26 are arranged so that the positions of the centers of gravity of the pad electrodes 27 are aligned in a direction that intersects (inclines) with the direction from the first part 20a to the second part 20b of the ink cartridge 20. In Fig. 10, the direction from the first part 20a to the second part 20b of the ink cartridge 20 coincides with the longitudinal direction and the insertion direction of the ink cartridge 20. In addition, multiple electrical connection parts (not shown in Fig. 10) on the recording device side are also arranged in a direction that corresponds to the multiple pad electrodes 27.

[0097] The ink cartridge 20 shown in FIG. 10 is rotated in the same direction as the direction described in FIG. 8. That is, after the ink cartridge 20 is inserted in the insertion direction, the ink cartridge 20 is rotated around the ink receiving tube as a central axis while preventing the ink cartridge 20 from moving in the insertion direction. The rotation of the ink cartridge 20 moves the pad electrodes 27, and the electrical connection parts come into contact with the center of gravity of each pad electrode 27. Then, the contact between the pad electrodes 27 and the electrical connection parts allows the pad electrodes 27 and the electrical connection parts to be electrically connected. As described above, the centers of gravity of each pad electrode 27 are aligned in a direction intersecting the moving direction of the pad electrodes 27. In all pad electrodes 27 constituting the multiple pad electrodes 27, the centers of gravity of each pad electrode 27 coincide with the electrical contacts. Therefore, in the multiple pad electrodes 27, the direction in which the electrical contacts of each pad electrode 27 are aligned is a direction intersecting the moving direction of the pad electrodes 27.

[0098] 10, when the protrusion 25 is viewed from the side facing the pad electrode 27 (the upper side of the pad electrode 27), the protrusion side surface 25b of the protrusion 25 has a part that sandwiches the pad electrode 27 and is convex. By providing a convex portion on the protrusion side surface 25b in this way and rotating the ink cartridge 20 with the convex portion in contact with the positioning wall, the installation becomes more stable.

[0099] Furthermore, if the electrical contacts of the pad electrodes 27 are arranged in a line in a direction intersecting the movement direction of the pad electrodes 27, it is easy to increase the length from the electrical contacts of the pad electrodes 27. This improves the electrical connection at the electrical contacts. Conversely, if the electrical contacts of the pad electrodes 27 are arranged in a line in a direction parallel to the insertion direction of the connector pin, i.e., parallel to the movement direction of the pad electrodes 27, it is difficult to increase the length from the electrical contacts of the pad electrodes 27. This is because the line-up direction of the pad electrodes 27 coincides with the movement direction, making it difficult to obtain a sufficient distance between the pad electrodes.

[0100] The electrical contacts of each pad electrode are preferably located at a distance of 5 mm or more and 25 mm or less from the first portion 20a in a direction parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, the distance is 10 mm or more and 20 mm or less from the first portion 20a. It is preferable that the electrical contacts of all of the multiple pad electrodes are within this range. In other words, the electrode portion 26 and the multiple pad electrodes 27 are preferably provided in the vicinity of the first portion 20a.

[0101] The positional relationship between the convex portion of the protruding portion side surface 25b of the protruding portion 25 and the electrical contact of the pad electrode will be described. FIG. 38 is an enlarged view of the protruding portion 25 of the ink cartridge 20 shown in FIG. 10, the electrode portion 26 on the protruding portion 25, and the pad electrode 27. Convex portions 25c and 25d, which are convex portions, protrude from the protruding portion side surface 25b, which is the side surface of the protruding portion 25. In the convex portions 25c and 25d, the convex portion 25c is on the side closer to the first portion 20a, and the convex portion 25d is on the side closer to the second portion 20b. The apex of the convex portion 25c (the position most protruding from the protruding portion side surface 25b) is referred to as apex 25c', and the apex of the convex portion 25d (the position most protruding from the protruding portion side surface 25b) is referred to as apex 25d'. On the line connecting vertex 25c' and vertex 25d', the shortest distance from vertex 25c' to pad electrode 27c is length A, and the shortest distance from vertex 25d' to pad electrode 27b is length B (shown in FIG. 38). In this case, length A is preferably 2.0 mm or more and 4.0 mm or less, and more preferably 2.5 mm or more and 3.5 mm or less. Similarly, length B is preferably 2.0 mm or more and 4.0 mm or less, and more preferably 2.5 mm or more and 3.5 mm or less.

[0102] In the second embodiment, the direction in which the electrical contacts of the pad electrodes are arranged is a direction intersecting the direction from the first portion 20a to the second portion 20b. The preferred arrangement of the electrical contacts of the pad electrodes is as follows. That is, the electrical contact of the pad electrode closest to the first portion 20a is preferably arranged at a position 5 mm or more and 15 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, it is arranged at a position 10 mm or more and 11 mm or less from the first portion 20a. On the other hand, the electrical contact of the pad electrode farthest from the first portion 20a is preferably arranged at a position 15 mm or more and 25 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, it is arranged at a position 17 mm or more and 18 mm or less from the first portion 20a. In this specification, when the electrical contacts of the pad electrodes are not aligned in a straight line, the direction in which the electrical contacts of the pad electrodes are aligned is defined as the extension direction of a linear approximation line of the electrical contacts of the pad electrodes.

[0103] [Third embodiment] In the third embodiment, a mounting operation that is different from the mounting operation of the ink cartridge into the mounting portion of the recording apparatus shown in the first embodiment will be described.

[0104] The mounting operation in the third embodiment will be described with reference to Fig. 11. The ink cartridge 20 to be mounted in Fig. 11 is the ink cartridge described in the second embodiment. Note that in Fig. 11, the hole forming member of the mounting part is omitted, and only the peripheral part 23 of the electrical connection part of the mounting part is shown.

[0105] The explanation for reaching the state in Fig. 11(a) is the same as the explanation for reaching Fig. 8(a) to Fig. 8(b). However, in the third embodiment, in the state in Fig. 11(a), i.e., in the state before the ink cartridge 20 is rotated, it is not necessary to insert the ink receiving tube (not shown in Fig. 11) into the insertion portion 24. In the third embodiment, in the state before the ink cartridge 20 is rotated, it is preferable not to insert the ink receiving tube into the insertion portion 24.

[0106] The reason why it is preferable not to insert the ink receiving tube into the insertion portion 24 before rotating the ink cartridge 20 is as follows: When inserting the ink receiving tube into the insertion portion 24 or removing the ink receiving tube from the insertion portion 24, it is preferable to make the movement of the ink cartridge 20 as slow as possible to prevent ink from splashing from the ink receiving tube or the insertion portion 24. Therefore, it is preferable not to insert the ink receiving tube into the insertion portion 24 until it reaches the state shown in Figure 11(a), and to insert the ink receiving tube into the insertion portion 24 when the movement of the ink cartridge slows down due to subsequent rotation.

[0107] The same is true when the ink receiving tube is removed from the insertion portion 24. During the rotation of the ink cartridge 20, which tends to slow down the movement of the ink cartridge 20, the ink receiving tube comes out of the insertion portion 24, resulting in the state shown in FIG. 11(a). The ink cartridge 20 is then pulled out of the mounting portion in the direction opposite to the insertion direction. When the ink cartridge 20 is pulled out in the direction opposite to the insertion direction, the ink receiving tube does not come out of the insertion portion 24. For this reason, even if the ink cartridge 20 is quickly pulled out in the direction opposite to the insertion direction, ink is unlikely to splash.

[0108] The above is the reason why, in the third embodiment, it is preferable not to insert the ink receiving tube into the insertion portion 24 before rotating the ink cartridge 20.

[0109] Next, as shown in FIG. 11(b), the ink cartridge 20 is rotated. The rotation can be triggered in the same way as described in the first embodiment. However, in the third embodiment, the ink cartridge 20 is inserted in the insertion direction even during this rotation. That is, the ink cartridge 20 is inserted in the insertion direction with the first portion 20a (and the insertion portion 24) at the front while the ink cartridge 20 itself rotates. During this movement, the trajectory of the movement of a certain point on the ink cartridge 20, such as the pad electrode 27 or the ID protrusion 28, becomes screw-shaped (spiral-shaped). Hereinafter, this type of rotation will be described as "screw rotation" and the installation of the ink cartridge by screw rotation will be described as "screw rotation installation".

[0110] If the ink receiving tube is not inserted into the insertion portion 24 in the state shown in FIG. 11(a), the ink receiving tube is inserted into the insertion portion 24 during the screw-rotation installation of the ink cartridge 20. If the ink receiving tube is inserted into the insertion portion 24 by rotating the ink cartridge 20, it is preferable that the ink cartridge rotates 10 degrees or more from the state shown in FIG. 11(a) so that the ink receiving tube begins to be inserted into the insertion portion 24. The angle through which the ink cartridge 20 rotates before the ink receiving tube is inserted into the insertion portion 24 is preferably 15 degrees or more, and more preferably 20 degrees or more. In addition, the angle through which the ink cartridge 20 rotates before the ink receiving tube is inserted into the insertion portion 24 is preferably 40 degrees or less, more preferably 30 degrees or less, and even more preferably 25 degrees or less.

[0111] By screw rotation mounting, the state shown in FIG. 11(b) changes to the state shown in FIG. 11(c). In the state shown in FIG. 11(c), the protrusion 25, the electrode portion 26 on the protrusion 25, and the multiple pad electrodes 27 begin to be inserted between two positioning walls facing each other with multiple electrical connection portions in between. The angle by which the ink cartridge 20 rotates until the multiple pad electrodes 27 begin to be inserted between the two positioning walls facing each other with multiple electrical connection portions in between is preferably 40 degrees or more. More preferably, it is 50 degrees or more, and even more preferably, it is 55 degrees or more. In addition, the angle by which the ink cartridge 20 rotates until the multiple pad electrodes 27 begin to be inserted between the two positioning walls facing each other with multiple electrical connection portions in between is preferably 75 degrees or less. More preferably, it is 70 degrees or less, and even more preferably, it is 65 degrees or less.

[0112] When the screw is further rotated to reach the state shown in FIG. 11(d), the protrusion 25, the electrode portion 26, and the multiple pad electrodes 27 are sandwiched between the positioning walls, and the electrical connection portion of the mounting portion comes into contact with the center of gravity of each of the multiple pad electrodes 27. In this state, the pad electrodes 27 can be electrically connected to the electrical connection portion. When the pad electrodes 27 come into contact with the electrical connection portion and are in an electrically connectable state, the mounting of the ink cartridge 20 to the mounting portion is completed. The angle by which the ink cartridge 20 rotates before the multiple pad electrodes 27 start to contact the electrical connection portion is preferably 70 degrees or more, more preferably 80 degrees or more. In addition, the angle by which the ink cartridge 20 rotates before the multiple pad electrodes 27 start to contact the electrical connection portion is preferably 90 degrees or less, more preferably 88 degrees or less.

[0113] 11(d) shows the state when the installation is complete, in which the pad electrodes 27 are in contact with the electrical connection parts at the electrical contact points, and are in an electrically connectable state. It is preferable that the ink cartridge 20 is rotated by 90 degrees by the time the installation is complete.

[0114] The preferred position of the tip of the ink receiving tube when installation is complete is as follows. That is, in terms of the distance in the direction parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20, it is preferred that the tip be 10 mm or more and 20 mm or less from the first portion 20a of the ink cartridge 20. More preferably, it is 11 mm or more and 15 mm or less from the first portion 20a. In addition, the direction from the first portion 20a to the second portion 20b coincides with the longitudinal direction and the insertion direction of the ink cartridge 20 in FIG. 11.

[0115] 12(a)-(d) show the movement of the pad electrodes 27 shown in FIG. 11(a)-(d) from different angles. FIG. 12 is an enlarged view of the periphery of the electrical connection portion peripheral portion 23. FIG. 12(a)-(d) correspond to FIG. 11(a)-(d), respectively. As shown in FIG. 12(a)-(d), the protrusion 25, the electrode portion 26, and the multiple pad electrodes 27 are inserted between two positioning walls facing each other with the multiple electrical connection portions 22 interposed therebetween by the screw rotation of the ink cartridge 20. Then, the multiple pad electrodes 27 of the electrode portion 26 come into contact with the electrical connection portions 22 of the electrical connection portion peripheral portion 23, and become electrically connectable to the electrical connection portions 22.

[0116] It is preferable that the positioning walls 23a, 23b come into contact with the protrusion 25 (particularly the protrusion side surface 25b of the protrusion 25) when the ink cartridge 20 is screwed. The contact between the positioning walls 23a, 23b and the protrusion 25 makes it easier to screw-rotate the ink cartridge 20 along the shape of the positioning walls 23a, 23b. The positioning walls 23a, 23b can determine the position of the protrusion 25 when it is screwed in. The contact between the protrusion 25 and the positioning walls 23a, 23b positions the pad electrode 27 of the ink cartridge 20 relative to the electrical connection portion 22 of the mounting portion.

[0117] The angle between the protrusion side surface 25b of the protrusion 25 and the direction from the first part 20a to the second part 20b of the ink cartridge 20 is preferably 50 degrees or more and 70 degrees or less. More preferably, it is 55 degrees or more. Also, it is 60 degrees or less. This angle is the angle when viewed from the side facing the ceiling surface of the protrusion 25. The direction of the protrusion side surface 25b is the direction in which the protrusion side surface 25b extends when the protrusion 25 is viewed from the side facing the pad electrode 27. If the protrusion side surface 25b has a convex portion as described above and is not a straight line shape, the protrusion side surface 25b may be regarded as an approximate straight line to determine the direction of the side surface. If the angle relationship is as described above, better mounting is possible. If there are multiple protrusion side surfaces 25b, but at least one of the protrusion side surfaces 25b satisfies the above angle relationship, better mounting is possible. In particular, it is preferable that the protruding portion side surfaces 25b located outside both ends of the multiple pad electrodes 27 in the direction in which the multiple pad electrodes 27 are arranged satisfy the above-mentioned angle relationship.

[0118] In this specification, unless otherwise specified, the angle between two directions or the angle at which a certain direction is inclined relative to another direction refers to the smaller angle of the four angles formed by the two directions. In other words, the angle refers to one angle of the smaller angle of two angles with the same angle. Also, when two directions (or lines) are in a twisted position relationship, two lines are drawn from any point parallel to each direction (or line), and the angle formed by the two lines is the angle between the two directions (or lines).

[0119] Even if the ink cartridge 20 does not have a protrusion 25, the electrode portion 26 is brought into contact with the positioning walls 23a and 23b, making it easier to position the pad electrode 27 of the electrode portion 26 and the electrical connection portion 22 of the mounting portion. In these cases, the moving direction of the pad electrode 27 when the ink cartridge 20 is screwed is along the extending direction of the positioning walls 23a and 23b. Also, the moving direction of the pad electrode 27 when the ink cartridge 20 is screwed can be along the extending direction of the positioning walls 23a and 23b. Furthermore, the moving direction of the pad electrode 27 when the ink cartridge 20 is screwed can be parallel to the extending direction of the positioning walls 23a and 23b.

[0120] When the above-mentioned screw rotation installation is performed, the pad electrode 27 moves in a different direction from the insertion direction of the ink cartridge 20, as shown by the arrow in Fig. 11(a). In the screw rotation installation, the pad electrode 27 rotates in a screw shape with a component in the insertion direction, but the pad electrode 27 moves while rotating in a screw shape relative to the linear insertion direction. In other words, the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20. As the pad electrode 27 moves, it comes into contact with the electrical connection portion, and becomes electrically connectable to the electrical connection portion.

[0121] In this way, in screw rotation mounting, when the ink cartridge 20 is mounted, the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20. Therefore, even if the ink cartridge 20 is inserted forcefully in the insertion direction, it is possible to reduce the impact on the pad electrode 27 and the electrical connection portion 22 when the pad electrode 27 comes into contact with the electrical connection portion 22 on the mounting portion side. Since the impact on the pad electrode 27 and the electrical connection portion 22 can be reduced, the pad electrode 27 and the electrical connection portion 22 can be in good contact with each other.

[0122] As explained above, the ink cartridge 20 can rotate around an axis along the insertion direction and the longitudinal direction, and can be mounted by this rotation. When mounting the ink cartridge 20, the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20. The moving direction of the pad electrode 27 is preferably inclined at 50 degrees or more with respect to the insertion direction of the ink cartridge 20. Also, it is more preferable that it is inclined at 60 degrees or more. It may be inclined at 90 degrees (orthogonal) as in the first embodiment, but it is preferably inclined at 80 degrees or less, and more preferably at 70 degrees or less.

[0123] Incidentally, in the second embodiment, the ink cartridge 20 is inserted in the insertion direction, and after the insertion in the insertion direction is stopped, the ink cartridge 20 is rotated to move the pad electrode 27 in a direction different from the insertion direction of the ink cartridge 20. Meanwhile, in the third embodiment, even when the ink cartridge 20 is rotated after being inserted in the insertion direction, it continues to rotate while being inserted in the insertion direction (screw rotation), and the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20.

[0124] In the third embodiment, since the ink cartridge 20 is mounted by screw rotation, the movement speed of the ink cartridge 20 in the insertion direction tends to naturally slow down. Therefore, the movement speed of the pad electrodes 27 of the ink cartridge 20 also tends to slow down, and the contact with the electrical connection part of the pad electrodes 27 can be made good. In addition, the series of steps up to the completion of mounting can be performed more smoothly, so that it is also excellent in terms of operability. In this way, the insertion direction of the ink cartridge 20 and the movement direction of the pad electrodes 27 can be naturally made different from each other simply by screw rotation mounting. Furthermore, deformation of the pad electrodes 27 and splashing of ink at the ink receiving tube and insertion part when removing the ink cartridge 20 are unlikely to occur.

[0125] In addition, the angle at which the ink cartridge 20 rotates is preferably 180 degrees or less, more preferably 135 degrees or less, and even more preferably 100 degrees or less, in consideration of operability. In addition, in terms of operability, it is preferably 10 degrees or more, more preferably 45 degrees or more, and even more preferably 80 degrees or more. The most preferable angle at which the ink cartridge 20 rotates is 90 degrees. In addition, the angle at which the ink cartridge 20 rotates is the rotation angle at which a certain point of the ink cartridge 20 rotates around the center of gravity of the cross section perpendicular to the insertion direction of the ink cartridge 20 when the ink cartridge 20 is viewed from the first portion side. The certain point of the ink cartridge 20 is, for example, the pad electrode 27 or the ID protrusion 28. In terms of the drawings, the angle at which the ink cartridge 20 rotates is the angle at which the ink cartridge 20 rotates from FIG. 11(a) to FIG. 11(d), or from FIG. 12(a) to FIG. 12(d). In these views, the ink cartridge 20 is rotated 90 degrees.

[0126] In the third embodiment, when the electrical contacts of the pad electrodes 27 are arranged in a direction intersecting the moving direction of the pad electrodes 27, the arrangement and size of the pad electrodes 27 and the electrical connection parts can be particularly efficiently achieved. Also, good electrical connection between the pad electrodes 27 and the electrical connection parts can be easily achieved.

[0127] The electrical contacts of the pad electrodes 27 in the plurality of pad electrodes 27 are preferably arranged at an inclination of 60 degrees or more with respect to the moving direction of the pad electrodes 27, more preferably at an inclination of 70 degrees or more, and even more preferably at an inclination of 80 degrees or more. Furthermore, the electrical contacts of the pad electrodes 27 in the plurality of pad electrodes 27 are preferably arranged in a direction perpendicular to the moving direction of the pad electrodes 27 (so that the angle between the two directions and the perpendicular direction is 90 degrees). As described above, the angle at which the two directions intersect is the angle of the smallest angle (the angle of the combination of the two directions) among the four angles formed by the two directions. Therefore, the angle at which the two directions intersect is 90 degrees at most. At this time, the two directions are perpendicular to each other. In the third embodiment, the pad electrodes 27 move in a screw shape, and the angle (inclined angle) formed by the two directions in such a case is calculated by considering the moving direction of the pad electrodes as follows. In other words, the movement direction of the pad electrode is set to the direction in which an approximate straight line (approximate straight line) extends, such as a tangent to the movement trajectory whose tangent point is the intersection between the direction in which the electrical contacts of the pad electrode 27 are arranged and the movement trajectory of the screw-shaped pad electrode 27.

[0128] The direction in which the electrical contacts of the pad electrodes 27 are arranged is preferably inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, the angle is inclined at an angle of 30 degrees or more and 35 degrees or less. In addition, the direction from the first portion 20a to the second portion 20b coincides with the longitudinal direction and the insertion direction of the ink cartridge 20 in FIG. 10.

[0129] Next, an example of the arrangement of the pad electrodes 27 will be described. FIGS. 13(a) to (f) show an example of the arrangement of the pad electrodes 27 when the pad electrodes 27 are viewed from above. In FIG. 13, the moving direction of the pad electrodes 27 in the third embodiment is shown by a solid arrow, and the line connecting the electrical contacts 27a of the pad electrodes 27 is shown by a dotted arrow. The moving direction of the pad electrodes 27 is approximately shown by a straight line as described above. The two arrows in FIGS. 13(a) to (f) are all perpendicular to each other. That is, in all of FIGS. 13(a) to (f), the electrical contacts 27a of the pad electrodes 27 in the multiple pad electrodes 27 are arranged in a direction perpendicular to the moving direction of the pad electrodes 27. Note that the multiple pad electrodes 27 may have a pad electrode 27 whose electrical contacts 27a do not coincide with the center of gravity of the pad electrode 27. For example, the pad electrodes 27 in FIG. 13(c) have no center of gravity and no electrical contacts 27a in any of the pad electrodes 27.

[0130] When the connector pin enters the pad electrode 27 toward the electrical contact 27a, it is preferable that the connector pin does not touch any pad electrode other than the pad electrode that is to be contacted for electrical connection. This is for the following reasons. For example, when mounting, the pad electrode and the connector pin may be in a state where electricity flows, and the completion of mounting may be detected by the contact of the pad electrode and the connector pin. When performing such detection, if electricity flows when the connector pin contacts a pad electrode other than the pad electrode that it should originally contact, the detection may not be performed properly. In addition, when the connector pin runs over a pad electrode other than the pad electrode that it should originally contact, the pad electrode that is run over may be damaged. From this viewpoint, it is preferable that the pad electrodes are arranged so that they do not overlap in the direction of the connector pin's entry, that is, in the direction of the movement of the pad electrode. In the arrangement shown in FIG. 13, the arrangements shown in FIG. 13(a), (b), (c), (d), and (f) are arranged so that the pad electrodes 27 do not overlap in the direction of the movement of the pad electrode 27.

[0131] The relationship between the movement direction of the pad electrode 27 and the direction in which the electrical contacts of the pad electrode 27 are arranged has been described above. Note that the area of ​​the pad electrode 27 can be an electrical contact with the electrical connection portion 22 of the pad electrode 27, so the electrical contact of the pad electrode 27 can be considered as being replaced with the area of ​​the pad electrode 27. Also, the direction in which the electrical contacts are arranged can be considered in relation to the direction from the first portion 20a to the second portion 20b of the ink cartridge or the insertion direction of the ink cartridge into the hole forming member, rather than in relation to the movement direction of the pad electrode 27. Even in these configurations, good contact between the pad electrode 27 and the electrical connection portion 22 can be achieved.

[0132] For example, it is preferable that the pad electrodes 27 are arranged so that each of the pad electrodes 27 has an area that is aligned in a direction intersecting the moving direction of the pad electrodes 27. This will be described with reference to FIG. 13(h). The areas (areas occupied by the pad electrodes 27) shown in FIG. 13(h) are aligned so as to intersect with a line U that crosses (overlaps) all of the pad electrodes 27. When viewed from a direction perpendicular (opposite) to the surface of the pad electrode 27 (or the paper surface of FIG. 13(h)), this line U crosses the moving direction of the pad electrode 27 (see FIG. 13(a)). This means that the pad electrodes 27 are arranged so as to have an area that is aligned in a direction intersecting the moving direction of the pad electrode 27. The line U is not limited to the single line shown in FIG. 13(h), but may be any line (straight line) that crosses (overlaps) all of the pad electrodes 27. The pad electrodes 27 preferably have a region inclined at 60 degrees or more with respect to the moving direction of the pad electrodes 27, more preferably have a region inclined at 70 degrees or more, and even more preferably have a region inclined at 80 degrees or more. That is, when viewed from a direction perpendicular to the surface of the pad electrodes 27, the line U is preferably inclined at 60 degrees or more with respect to the moving direction of the pad electrodes 27, more preferably inclined at 70 degrees or more, and even more preferably inclined at 80 degrees or more. Furthermore, the pad electrodes 27 preferably have a region inclined in a direction perpendicular to the moving direction of the pad electrodes (so that the angle between the two directions is 90 degrees with respect to the perpendicular direction). That is, when viewed from a direction perpendicular to the surface of the pad electrodes 27, the line U is preferably perpendicular to the moving direction of the pad electrodes 27. When the moving direction of the pad electrodes is curved or screw-shaped, the moving direction of the pad electrodes is considered to be the direction in which an approximate straight line extends, as described above.

[0133] In addition, the direction in which the regions of the pad electrodes 27 are arranged preferably intersects with the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the line U preferably intersects with the W direction (the direction from the first portion 20a to the second portion 20b). The direction in which the regions of the pad electrodes 27 are arranged preferably inclines at 10 degrees or more and 60 degrees or less with respect to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20, and more preferably inclines at 30 degrees or more and 35 degrees or less. That is, when viewed from a direction perpendicular to the surface of the pad electrode 27, the angle (angle γ) at which the line U and the W direction in FIG. 13(h) intersect is preferably 10 degrees or more and 60 degrees or less, and more preferably 30 degrees or more and 35 degrees or less. In FIG. 13(h), the line T is a line (straight line) that, among the lines passing through all the pad electrodes 27, forms the smallest angle (angle β) with the W direction. The line S is a line (straight line) that, among the lines passing through all the pad electrodes 27, forms the largest angle (angle α) with the W direction. That is, it is preferable that the angle β is 10 degrees or more, and it is preferable that the angle α is 60 degrees or less. It is preferable that the angle β<angle γ<angle α. In the case of a combination of areas in which the angle between the direction from the first part 20a to the second part 20b of the ink cartridge 20 and the direction in which the areas of the pad electrodes 27 are arranged is the largest, this angle (angle α) is preferably 40 degrees or more and 60 degrees or less. On the other hand, in the case of a combination of areas in which the angle between the direction from the first part 20a to the second part 20b of the ink cartridge 20 and the direction in which the areas of the pad electrodes 27 are arranged is the smallest, this angle (angle β) is preferably 10 degrees or more and 20 degrees or less. The direction from the first portion 20a to the second portion 20b of the ink cartridge 20 can also be considered as the longitudinal direction of the ink cartridge 20.

[0134] In addition, the direction in which the regions of the pad electrodes 27 are arranged is preferably intersecting with the insertion direction of the ink cartridge 20. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the line U is preferably intersecting with the W direction (the insertion direction of the ink cartridge 20). The direction in which the regions of the pad electrodes 27 are arranged is preferably inclined at 10 degrees or more and 60 degrees or less with respect to the insertion direction of the ink cartridge 20. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the angle (angle γ) between the line U and the W direction is preferably 10 degrees or more and 60 degrees or less. In addition, the direction in which the regions of the pad electrodes 27 are arranged is more preferably inclined at 20 degrees or more and 40 degrees or less with respect to the insertion direction of the ink cartridge 20, and even more preferably inclined at 30 degrees or more and 35 degrees or less. In the case of a combination of areas where the angle between the direction in which the ink cartridge 20 is inserted and the areas of the pad electrodes 27 is the largest among the directions in which the areas of the pad electrodes 27 are arranged, this angle (angle α) is preferably 40 degrees or more and 60 degrees or less. On the other hand, in the case of a combination of areas where the angle between the direction in which the ink cartridge 20 is inserted and the areas of the pad electrodes 27 is the smallest among the directions in which the areas of the pad electrodes 27 are arranged, this angle (angle β) is preferably 10 degrees or more and 20 degrees or less.

[0135] In addition, the direction in which the regions of each of the multiple pad electrodes 27 are arranged preferably intersects with the longitudinal direction of the ink cartridge 20. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the line U preferably intersects with the W direction (the longitudinal direction of the ink cartridge 20). The direction in which the regions of each of the multiple pad electrodes 27 are arranged preferably inclines with respect to the longitudinal direction of the ink cartridge 20 by 20 degrees or more and 40 degrees or less. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the angle (angle γ) between the line U and the W direction preferably is 20 degrees or more and 40 degrees or less. It is even more preferable that the inclination is 30 degrees or more and 35 degrees or less.

[0136] In addition, among the multiple pad electrodes 27, the pad electrode 27 closest to the first portion 20a preferably has a region of the pad electrode 27 at a position 5 mm or more and 15 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, it is at a position 10 mm or more and 11 mm or less from the first portion 20a. On the other hand, the pad electrode 27 farthest from the first portion 20a preferably has a region of the pad electrode 27 at a position 15 mm or more and 25 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, it is at a position 17 mm or more and 18 mm or less from the first portion 20a. The pad electrode 27 closest to the first portion 20a means the pad electrode 27 having a portion closest to the first portion 20a among the multiple pad electrodes 27. Moreover, the pad electrode 27 furthest from the first portion 20a means, of the multiple pad electrodes 27, the pad electrode 27 having a portion furthest from the first portion 20a.

[0137] When the electrical connection part on the attachment part side is a connector pin, it is preferable that the pad electrode 27 extends from the electrical contact along the moving direction of the pad electrode 27. In particular, it is preferable that the longitudinal direction of the pad electrode 27 is along the moving direction of the pad electrode 27 from the electrical contact. The reason for this is as follows. The connector pin can remove dust and the like attached to the pad electrode 27 by moving relatively toward the electrical contact while in contact with the pad electrode 27. Then, after making the part that will become the electrical contact as free of dust and the like as possible, the pad electrode 27 and the connector pin make final contact at the electrical contact. For this reason, it is preferable that the pad electrode 27 extends from the electrical contact along the moving direction of the pad electrode 27, and the part from which dust and the like has been sufficiently removed can become the electrical contact.

[0138] Furthermore, the length of the pad electrode 27 from the electrical contact (the distance the pad electrode 27 extends, the shortest length from the electrical contact to the end of the pad electrode 27) is preferably 0.5 mm or more, and more preferably 1.0 mm or more. From the standpoint of space, the length of the pad electrode 27 from the electrical contact is preferably 4.0 mm or less. All of the multiple pad electrodes 27 may satisfy these lengths, or at least one of the pad electrodes 27 may satisfy these lengths.

[0139] It is also possible to configure each connector pin to extend in a direction intersecting (inclined) with the moving direction of pad electrode 27 (the longitudinal direction of the connector pin intersects with the moving direction of the pad electrode). In this case, however, the side of the connector pin may ride up on the side (step) of pad electrode 27 of electrode portion 26, which may reduce the reliability of the connector pin or pad electrode 27. On the other hand, if one tries to avoid this, the shape and arrangement of the connector pin will become complicated, and a large space will be required.

[0140] When the electrode portion 26 has a plurality of pad electrodes 27, the moving direction of the pad electrodes 27 may be considered as the moving direction of the electrode portion 26.

[0141] Moreover, it is preferable that the relationship of the inclination and angle between the two directions described above be satisfied for all of the pad electrodes 27 among the multiple pad electrodes 27 that the ink cartridge has.

[0142] Next, the preferred number, size, and arrangement of the pad electrodes 27 when considering the installation of the ink cartridge will be described. First, the pad electrodes 27 of the ink cartridge are preferably four or more. FIG. 13 shows an example in which the ink cartridge has four pad electrodes (two for power supply lines for accessing information stored in a memory element of the electrode section, and two for information lines), but it is more preferable that the ink cartridge has four pad electrodes 27 like this. More specifically, there are a ground pad electrode, which is a terminal that serves as a reference on the circuit and is basically always at zero potential, a clock signal pad electrode that outputs a pulse at a certain frequency and serves as a reference for the minimum unit of data transmission, a power supply pad electrode that is a power supply that operates an IC or the like and has a positive potential, and a data signal pad electrode that sends a signal of 0 / 1 according to data to operate the circuit. The pad electrodes shown in FIG. 18 are arranged in the order of a ground pad electrode, a clock signal pad electrode, a power supply pad electrode, and a data signal pad electrode from the top of the figure. It is preferable that the ground pad electrode is larger than the other pad electrodes. This is to stabilize the connection, since the operation is difficult to stabilize unless the reference potential is made constant by first connecting a pad electrode for ground. Next, the width of the multiple pad electrodes 27 will be described with reference to FIG. 13(g). As shown in FIG. 13(g), the width of the multiple pad electrodes 27 is the length of a straight line connecting two points where the inner ends (27d, 27e) of the pad electrodes 27 (pad electrodes 27b, 27c) at both ends intersect with a straight line passing through all four or more pad electrodes 27 (the portion indicated by the arrow A in FIG. 13(g)). The width of the multiple pad electrodes 27 is preferably 5 mm or more and 10 mm or less, more preferably 6 mm or more and 9 mm or less, and even more preferably 7 mm or more and 8 mm or less.

[0143] [Fourth embodiment] In the third embodiment, the positioning wall of the mounting section and the protruding section (side surface of the protruding section) of the ink cartridge are brought into contact with each other, and the protruding section is moved along the positioning wall, thereby performing screw-rotation mounting. As a result of the screw-rotation mounting, the pad electrode of the electrode section provided on the protruding section moves in a direction different from the insertion direction with the first section (and the insertion section) of the ink cartridge at the front, and becomes electrically connectable to the electrical connection section.

[0144] In the fourth embodiment, in order to make screw rotation installation easier, a guide portion is provided on the ink cartridge, and the screw is rotated using this guide portion.

[0145] FIG. 14 shows an ink cartridge having a guide portion. The guide portion 29 is provided in the third portion 20c of the ink cartridge. The guide portion 29 is a groove shaped along the rotation direction when the ink cartridge is attached. Here, the guide portion 29 is a groove shaped like a screw (part of a screw). There may be one guide portion 29, or there may be multiple guide portions 29. In FIG. 14, a second guide portion 38 separate from the guide portion 29 is provided at a position facing the guide portion 29 of the ink cartridge. The second guide portion 38 is a groove independent of (not connected to) the guide portion 29. The guide portion 29 and the second guide portion 38 are provided on the cover member 78 shown in FIG. 7. The guide portion 29 and the second guide portion 38 are provided on the large diameter portion of the ink cartridge. The pad electrode 27 is provided on the small diameter portion, while the guide portion 29 is provided on the large diameter portion, so the extension direction of the guide portion 29 and the movement direction of the pad electrode 27 do not completely coincide. However, these are generally in the same direction, and the guide portion 29 has a shape that follows the movement direction of the pad electrode 27 (and the rotation direction of the ink cartridge 20) when the ink cartridge 20 is attached. Therefore, the extension direction of the guide portion 29 can be considered as the movement direction of the pad electrode 27 or the rotation direction of the ink cartridge 20.

[0146] The guide portion 29 and the second guide portion 38 open at the end of the large diameter portion at the connecting portion between the large diameter portion and the small diameter portion (opening 29a, second opening 38a). It is preferable that the opening 29a and the second opening 38a are located at opposing positions on the ink cartridge 20. It is also preferable that the second opening 38a is located on a line extending from the opening 29a through the center of gravity of the ink cartridge 20 in a cross section in the short direction.

[0147] 15(a) to 15(c) will be used to explain the mounting operation of the ink cartridge 20 using the guide portion 29 and the second guide portion 38. Here, the mounting operation using two guide portions will be explained, but the number of guide portions may be only one, for example, the guide portion 29.

[0148] First, the ink cartridge 20 is inserted into the recording device along the insertion direction until it reaches the state shown in Fig. 15(a). Up to this point, the contents are basically the same as those described in Fig. 11(a). However, in Fig. 15(a), the lock pin 30 of the electrical connection portion peripheral portion 23 of the mounting portion is inserted into the guide portion 29. The lock pin 30 is inserted into the guide portion 29 from the opening 29a of the guide portion 29. Similarly, the second lock pin 39 is inserted into the second guide portion 38 from the second opening 38a of the second guide portion 38.

[0149] The lock pin 30 and the second lock pin 39 are guide parts of the mounting part, and are pin-shaped. The tips of these lock pins (the ends inserted into the guide parts 29 and 38) are preferably hemispherical. In addition, the lock pin 30 and the second lock pin 39 preferably press the ink cartridge 20. In FIG. 15, the lock pin 30 and the second lock pin 39 sandwich the ink cartridge 20 and press the ink cartridge 20. This makes it difficult for the ink cartridge 20 to move relative to the mounting part, and increases the accuracy of mounting the ink cartridge 20. As described above, it is preferable to sandwich the ink cartridge 20 between the lock pin 30 and the second lock pin 39. Therefore, it is preferable that the guide part 29 and the second guide part 38 corresponding to the lock pin 30 and the second lock pin 39, respectively, are located at opposing positions on the ink cartridge 20. That is, it is preferable that the second guide portion 38 is disposed on a line extending from the guide portion 29 through the center of gravity of the ink cartridge 20 in a cross section in the short side direction.

[0150] The positional relationship between the two guide portions and the lock pin is shown in Figure 16. Figure 16(a) is a view of the ink cartridge 20 seen from diagonally above the electrical connection portion periphery 23, and Figure 16(b) is a view of the ink cartridge 20 seen from the insertion portion 24 side. As shown in Figures 16(a) and (b), the lock pin 30 and the second lock pin 39 are positioned opposite each other, and the corresponding guide portion 29 and second guide portion 38 are also positioned opposite each other on the ink cartridge 20.

[0151] From the state in which the guide portion of the mounting portion and the guide portion of the ink cartridge 20 are engaged as shown in FIG. 16(b), the ink cartridge 20 is screw-rotated as shown in FIG. 15(a) to FIG. 15(b) to rotate the ink cartridge 20 while advancing it in the insertion direction. At this time, since the lock pin 30 is regulated by the guide portion 29, the direction of screw rotation is determined by the guide portion 29, and the protrusion 25 is guided between the positioning walls 23a and 23b. Further rotation operation leads to the mounting completion state shown in FIG. 15(c), but just before that, the lock pin 30 passes over the guide portion rib 29b arranged inside the groove of the guide portion 29. As a result, when the user holds the ink cartridge 20, the user feels a clicking sensation, and can be notified that the mounting is completed. The second guide portion 38 may also be provided with a guide portion rib in the same manner.

[0152] The protrusion 25 may be in contact with the positioning walls 23a, 23b even during rotation using the guide portion 29. By using the contact between the protrusion 25 and the positioning walls 23a, 23b in addition to the contact between the guide portion 29 or the second guide portion 38 and the lock pin, the screw rotation becomes more stable.

[0153] Furthermore, rotation using the guide portion 29 is not limited to screw rotation, and rotation using the guide portion 29 can also be performed when rotating in the insertion direction of the ink cartridge 20 without inserting it, as in the first embodiment.

[0154] The ink cartridge 20 may be provided with a groove in addition to the guide portion 29. For example, a groove 31 may be provided along the guide portion 29, as shown in Figure 17(a).

[0155] When the guide portion 29 of the ink cartridge 20 is a groove, considering its function as a rotation guide, the depth of the guide portion 29 is preferably 1.0 mm or more and 5.0 mm or less. More preferably, the depth of the guide portion 29 is 2.0 mm or more and 4.0 mm or less. In addition, in the portion where the guide portion rib 29b is provided inside the guide portion, the depth of the guide portion is shallower by the amount of the guide portion rib 29b provided, and the depth of the guide portion is preferably 0.4 mm or more and 0.6 mm or less. The height of the guide portion rib 29b is preferably 1.5 mm or more and 2.0 mm or less. In addition, when the height of the guide portion rib 29b is X and the depth of the guide portion 29 is Y, it is preferable that X < Y. By having X < Y, the guide portion rib 29b can be prevented from protruding from the guide portion 29.

[0156] The extending direction of the guide portion 29 of the ink cartridge is preferably inclined 50 degrees or more and 80 degrees or less with respect to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, it is 60 degrees or more. Also, it is 70 degrees or less. In addition, in FIG. 15, the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 coincides with the longitudinal direction of the ink cartridge 20.

[0157] In addition, the extension direction of the guide portion in this specification is considered as follows. First, the ink cartridge 20 is viewed from the direction facing the pad electrode 27. The extension direction of the guide portion 29 when viewed from this direction is defined as the extension direction of the guide portion 29. The guide portion 29 shown in FIG. 15 extends in a screw shape, and when the guide portion 29 is viewed from the side facing the pad electrode 27, it is not a perfect straight line, but in such a case, it is considered as an approximate straight line (approximate straight line). Also, when the shape or width of the guide portion 29 varies depending on the location, the extension direction of the guide portion 29 is considered as the extension direction of the approximate straight line of the guide portion 29. In FIG. 18, the extension direction of the guide portion 29 when viewed from the side facing the pad electrode 27 is indicated by a solid arrow A. Also, the direction in which the electrical contacts of the pad electrode 27 are arranged is indicated by a dotted line B. The extending direction of guide portion 29 and the direction in which the electrical contacts of pad electrodes 27 are arranged intersect at an angle, and the angle between the two directions is the angle indicated by C near the intersection point of the two directions.

[0158] Next, the relationship between the extending direction of the guide portion 29 of the ink cartridge 20 and the direction in which the electrical contacts of the pad electrodes 27 of the multiple pad electrodes 27 are arranged will be described. As described above, the guide portion 29 has a shape according to the rotation direction when mounted, and is a shape that is along the rotation direction and the movement direction of the pad electrodes 27. In other words, the extending direction of the guide portion 29 can be considered to be the same as the movement direction of the pad electrodes 27 during rotation mounting. From this point of view, it is preferable that the direction in which the electrical contacts of the pad electrodes 27 of the multiple pad electrodes 27 are arranged intersects with the extending direction of the guide portion 29.

[0159] The electrical contacts of the pad electrodes 27 in the plurality of pad electrodes 27 are preferably arranged at an inclination of 60 degrees or more with respect to the extension direction of the guide portion 29, more preferably at an inclination of 70 degrees or more, and even more preferably at an inclination of 75 degrees or more. Also, the electrical contacts of the pad electrodes 27 in the plurality of pad electrodes 27 are preferably arranged at an inclination of 85 degrees or less with respect to the extension direction of the guide portion 29. Considering that the guide portion is in the large diameter portion and the pad electrodes are in the small diameter portion, the arrangement direction of the electrical contacts of the pad electrodes and the extension direction of the guide portion are not orthogonal to each other, unlike the relationship between the arrangement direction of the electrical contacts of the pad electrodes and the movement direction of the pad electrodes.

[0160] It is preferable that the pad electrodes 27 are arranged so that each pad electrode 27 has a region that is aligned in a direction intersecting the extension direction of the guide portion 29. It is preferable that the pad electrodes 27 have a region that is aligned at an inclination of 60 degrees or more with respect to the extension direction of the guide portion 29, more preferably a region that is aligned at an inclination of 70 degrees or more, and even more preferably a region that is aligned at an inclination of 75 degrees or more. That is, it is preferable that the line U in FIG. 13(h) intersects with the extension direction of the guide portion 29 when viewed from a direction perpendicular to the surface of the pad electrode 27. Moreover, the angle between the line U and the extension direction of the guide portion 29 is preferably 60 degrees or more, more preferably 70 degrees or more, and even more preferably 75 degrees or more. Furthermore, it is preferable that the pad electrodes 27 have a region that is aligned at an inclination of 85 degrees or less with respect to the extension direction of the guide portion 29 (at an inclination of 85 degrees or less).

[0161] The guide portion 29 is preferably arranged such that the portion on the second portion 20b side is located at a distance of 35 mm or more and 60 mm or less from the first portion 20a in a direction parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. More preferably, the portion is arranged at a distance of 45 mm or more and 50 mm or less from the first portion 20a. The portion on the second portion 20b side of the guide portion 29 is the end portion of the guide portion 29 on the opposite side to the opening 29a when the opening 29a side of the guide portion 29 is the start point of the guide portion 29. Also, if the opening 29a is present, the position of the portion on the first portion 20a side of the guide portion 29 is the position of the opening 29a. The opening 29a is separated from the first portion 20a by the length of the small diameter portion. In other words, it is preferable that the guide portion 29 is positioned at a distance in a direction parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20, with the portion on the first portion 20a side being located at a position greater than or equal to 20 mm and less than or equal to 30 mm from the first portion 20a.

[0162] It is preferable that the guide portion rib 29b is positioned such that the center of gravity of the guide portion rib 29b is located at a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20, and is more than 40 mm and less than 50 mm away from the first portion 20a.

[0163] The shape of the guide portion is not limited to the shape shown in Fig. 14. For example, as shown in Fig. 17(b), it may be a staircase-shaped staircase guide portion 40.

[0164] Also, the guide portion 29 does not have to be a groove, and may be a convex guide portion 41 having a convex shape as shown in FIG. 17(c). The convex guide portion 41 shown in FIG. 17(c) is a guide portion having a shape of a lock pin protruding in a convex shape at the third portion 20c of the ink cartridge. In this case, the guide portion on the mounting portion side is, for example, groove-shaped, and the convex guide portion 41 of the ink cartridge is inserted into the groove-shaped guide portion on the mounting portion side, and the ink cartridge 20 can be rotated along the guide portion on the mounting portion side. This mounting state is shown in FIG. 19. In FIG. 19, the groove-shaped guide portion 42 on the mounting portion side is shown by a dotted line. First, as shown in FIG. 19(a), the ink cartridge is inserted in the insertion direction until the convex guide portion (lock pin) 41 on the ink cartridge side fits into the groove-shaped guide portion 42 on the mounting portion side. After that, the ink cartridge is rotated as shown in FIG. 19(b) to (d), and the mounting of the ink cartridge is completed.

[0165] The above-mentioned depth, position, and extending direction of the guide portion 29 also apply to the second guide portion 38. Moreover, the guide portion 29 and the second guide portion 38 are preferably symmetrical in shape.

[0166] [Fifth embodiment] In the fifth embodiment, a gap is provided below the pad electrode. The ink cartridge in the fifth embodiment is shown in FIG.

[0167] FIG. 20(a) is an overall view of the ink cartridge. The ink cartridge 20 shown in FIG. 20(a) has an electrode portion 26 on a protruding portion 25. The electrode portion 26 has a plurality of pad electrodes 27. This has been described in the previous embodiments, but in the fifth embodiment, the protruding portion 25 is partially hollowed out, and the protruding portion 25 has a gap 32. The gap 32 is provided below the pad electrode 27. The below of the pad electrode 27 is the direction from the pad electrode 27 toward the center of gravity in a cross section perpendicular to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20.

[0168] FIG. 20(b) is an enlarged view of the periphery of the electrode section 26 of the ink cartridge shown in FIG. 20(a) from the side of the ink cartridge 20. There is a void 32 below the pad electrode of the electrode section 26. The void 32 opens to the insertion section 24 (first section 20a) side of the protrusion 25. There is no opening of the void 32 on the second section 20b side of the protrusion 25 (for example, it has a cantilever shape). The void 32 is a space formed by the wall of the protrusion 25, and is surrounded by the wall of the protrusion 25 except for a part. The part that is not surrounded by the wall of the protrusion 25 is the opening of the void 32.

[0169] FIG. 20(c) is a diagram of the periphery of the electrode portion 26 of the ink cartridge shown in FIG. 20(a) viewed from the first surface 20a (and the insertion portion 24) side.

[0170] Figure 20(d) is a cross-sectional view of the ink cartridge taken along line AA' in Figure 20(c), and is a view of the cross-section of the ink cartridge seen from above protruding portion 25. Figure 20(d) shows the state in which protruding portion 25 has been cut off, and the space surrounded by protruding portion 25 is void 32. Protruding portion 25 covers the top of void 32, and an electrode portion and a pad electrode are provided above it (on a table (tray) which is part of the configuration of protruding portion 25).

[0171] A support member (not shown in FIG. 20) of the mounting portion is inserted into the gap 32. As a result, the pad electrode 27 on the gap 32 is supported by the support member from below, so that downward movement can be restricted. In particular, by pressing the pad electrode 27 from above with an electrical connection portion such as a connector pin and supporting it from below with a support member, the pad electrode 27 is sandwiched in the vertical direction, and damage to the pad electrode 27 can be suppressed. In addition, the position of the pad electrode 27 can be stabilized to achieve good electrical connection. The pad electrode 27 can also be sandwiched between the electrical connection portion and the surface opposite to the side that contacts the electrical connection portion of the ink cartridge. That is, in the case of FIG. 20, the entire small diameter portion of the ink cartridge can also be sandwiched from the vertical direction of FIG. 20(c). However, it is preferable to provide a gap 32 below the pad electrode 27 and sandwich the pad electrode 27 between the electrical connection portion and the support member inserted into the gap 32. This is because the pad electrode 27 can be sandwiched closer to the electrical connection portion by the support member inserted into the gap 32, so the relative position between the pad electrode 27 and the electrical connection portion becomes more stable. When the pad electrode 27 is sandwiched by sandwiching the entire small diameter portion, it is not easy to stabilize the relative position between the pad electrode 27 and the electrical connection portion because the diameter of the small diameter portion is large.

[0172] As the support member for the mounting portion, for example, a part of the hole forming member 14b can be used. As shown in Fig. 4(a), when the hole forming member 14b covers the electrical connection portion 22, the hole forming member 14b covering the electrical connection portion 22 is used as a support member, and this support member is inserted into the gap 32 of the ink cartridge.

[0173] The manner in which an ink cartridge is mounted in the fifth embodiment will be described with reference to Figures 21 and 22. Figure 21 is a view of the hole forming member 14b of the mounting portion of the recording device, viewed from the side opposite to the side where the ink cartridge is inserted. A part of the hole forming member 14b is a protruding plate-like wall portion 14e. This wall portion 14e, which is a part of the hole forming member 14b, serves as the support member described above. An electrical connection portion peripheral portion 23 having an electrical connection portion 22 formed of a connector pin is disposed above the hole forming member 14b. Note that the positioning wall is omitted and not shown in Figure 21.

[0174] Figures 22(a) to (d) show the process of mounting the ink cartridge to the hole forming member 14b in Figure 21. The ink cartridge 20 gradually rotates from the state shown in Figure 22(a). Then, from Figure 22(c) to Figure 20(d), the wall portion 14e serving as a support member is inserted into the gap 32 below the pad electrode 27.

[0175] Figure 23 shows a schematic diagram of the installation of the ink cartridge described in Figure 22. The ink cartridge 20 is rotated from the state shown in Figure 23(a), and the wall portion 14e serving as a support member is inserted into the gap 32 below the electrode portion 26 having the pad electrode, from Figure 23(b) to Figure 23(c).

[0176] Furthermore, the manner in which the ink cartridge is attached as viewed from above the attachment portion will be described with reference to Figures 24 and 25. Figure 24 is a diagram showing the attachment portion. Figures 25(a) to (d) are diagrams showing the attachment process in the cross section taken along line AA' in Figure 24. As shown in Figures 25(a) to (d), the electrode portion 26 having the pad electrode 27 enters between the electrical connection portion 22 and the wall portion 14e, and the wall portion 14e as a support member is inserted into the gap 32 below the electrode portion 26 having the pad electrode 27. During this time, the pad electrode 27 moves to a position where it is sandwiched between the positioning walls 23a and 23b.

[0177] The gap 32 can fulfill another role in addition to stabilizing the positional relationship between the electrical connection portion 22 and the pad electrode 27. For example, heat may be generated at the electrical contact between the electrical connection portion 22 and the pad electrode 27. To stabilize the ink supply, it is preferable that this heat not affect the ink receiving tube 21 or the insertion portion 24 as much as possible. The gap 32 provided below the pad electrode 27 can function as a heat dissipation member. In other words, heat generated at the electrical contact can be dissipated from the gap 32 to the outside.

[0178] On the other hand, if the ink cartridge 20 is formed from a material with high thermal conductivity, the gap 32 can instead function as a heat insulating material, making it difficult for heat generated at the electrical contacts to be transmitted to the ink receiving tube 21 and the insertion portion 24.

[0179] The void 32 does not have to be provided below all of the pad electrodes 27. For example, the void 32 may not be provided below some of the pad electrodes 27. Alternatively, the void 32 may not be provided below a portion of a certain pad electrode 27. The portion constituting the outer periphery of the void 32 preferably has a maximum length of one side of 10 mm or more and 15 mm or less. The portion constituting the outer periphery of the void 32 is a line constituting the outer periphery of the void 32 when viewed from the side (above) facing the pad electrode 27. In other words, among the lines constituting the outer periphery of the void 32 when viewed from the direction shown in FIG. 20(d), the maximum length of the straight line side portion is preferably 10 mm or more and 15 mm or less.

[0180] The height of the void 32 is preferably 1 mm or more and 5 mm or less. The height of the void 32 is more preferably 2 mm or more. Also, it is 3 mm or less. The height of the void 32 is the vertical height from the surface of the third face 20c, and is the length of the void 32 in the up-down direction in Figures 7(b) and 23(c). When there are parts within the void 32 that differ in height, the height is taken as the average value of 100 points randomly distributed within the void 32.

[0181] Furthermore, the gap 32 may have a shape that is open below the gap 32. In other words, a configuration may be possible in which there is a gap below the pad electrode, and no components of the ink cartridge are present below the gap.

[0182] It is sufficient that the ink cartridge has a gap 32 when it is attached to the attachment portion. For example, even if the gap 32 is filled with a member before attachment to the attachment portion, and a gap is created when the member retracts during the attachment process, the ink cartridge is considered to have a gap in the attached state with the member retracted. Also, as described above, even if a support member other than the ink cartridge is inserted into the gap to block the gap, the ink cartridge still has a gap. The gap 32 can also be called a recess of the ink cartridge.

[0183] The position of the gap 32 and the pad electrode 27 will be described with reference to FIG. 39. FIG. 39 is an enlarged view of the first portion 20a of the ink cartridge. The first portion 20a is provided with an insertion portion (ink lead-out portion) 24. In FIG. 39, the insertion portion 24 appears to be provided at a position retreated from the position indicated by the first portion 20a, but this is because the insertion portion 24 is in a slightly recessed position, as shown in FIG. 20(a), for example. The axis (here, the axis along the longitudinal direction and perpendicular to the first portion 20a) of the ink cartridge 20 that extends the shortest distance from the insertion portion 24 toward the second portion is shown as axis A. The length from this axis A to the pad electrode 27 in the direction perpendicular to the third surface 20c (length indicated by B in FIG. 39, hereinafter length B) is preferably 15 mm or more and 20 mm or less. More preferably, it is 16 mm or more and 18 mm or less. By setting the length B in this range, the installation of the ink cartridge becomes more stable. In addition, if there is a gap 32, the height of the gap 32 is included in the length B.

[0184] Similarly, from the viewpoint of mounting the ink cartridge, the linear distance from the insertion section 24 to the pad electrode 27 (the length of the portion indicated by the dotted line in FIG. 39) is preferably 15 mm or more and 25 mm or less. It is preferable that all of the pad electrodes 27 are provided at positions within this range. The linear distance here is the length of the shortest straight line connecting the center of the insertion section 24 to the position of the pad electrode 27 closest to the center of the insertion section 24. In addition, although there are multiple pad electrodes 27, it is preferable that the difference in linear distance from the insertion section 24 between the pad electrode closest to the center of the insertion section 24 and the pad electrode furthest from the insertion section 24 is 2 mm or more and 4 mm or less. Regarding the numerical values ​​described in FIG. 39, if any region of the pad electrode 27 satisfies the numerical values, the effect is well manifested. In particular, it is preferable for the center of gravity and the electrical contacts of the pad electrode 27 to satisfy these numerical values ​​in terms of manifesting the effect.

[0185] [Sixth embodiment] Up to this point, a cylindrical ink cartridge has been illustrated and described. However, as mentioned above, the shape of the ink cartridge is not limited to a cylindrical shape. For example, as shown in Figure 26(a), a square prism-shaped ink cartridge may also be used.

[0186] The process of mounting a rectangular prism-shaped ink cartridge into a mounting portion (not shown in FIG. 26) will be described with reference to FIG.

[0187] First, the ink cartridge is inserted straight along the insertion direction with the first portion 20a at the front. This state is shown in Figure 26(a). Then, as shown in Figures 26(b) and 26(c), the ink cartridge 20 is rotated as described in the previous embodiments. This rotation causes the pad electrodes 27 of the electrode section 26 to move in a different direction relative to the insertion direction of the ink cartridge 20. The pad electrodes 27 then come into contact with the electrical connection section of the mounting section, enabling electrical connection.

[0188] The ink cartridge 20 may be shaped in a polygonal prism other than a quadrangular prism, a cone shape, or a polygonal pyramid shape.

[0189] [Seventh embodiment] In the seventh embodiment, an example will be described in which the portion of the ink cartridge on the first portion 20a side, i.e., the tip portion, rotates independently of the housing. An example of such an ink cartridge and a state in which the ink cartridge is mounted in a mounting portion is shown in Figure 27. Note that the mounting portion is omitted and not shown in Figure 27.

[0190] Fig. 27(a) is a diagram showing the ink cartridge before it is attached to the mounting portion. This ink cartridge 20 has an insertion portion 24 in a front first portion 20a. The ink cartridge 20 is inserted in the insertion direction with the first portion 20a at the front, into a hole formed by the hole forming member of the mounting portion as shown above. In the initial stage of insertion, the ink cartridge 20 is inserted into the hole of the hole forming member while maintaining the state shown in Fig. 27(a).

[0191] Next, when the ink cartridge 20 is inserted to a certain extent, the tip of the ink cartridge starts to rotate as shown in Fig. 27(b). This rotation can be achieved, for example, by using the lock pin and guide portion described above. Alternatively, for example, a member capable of rotating the tip can be installed inside the ink cartridge 20, and the tip can be rotated by the user manually rotating this member.

[0192] Rotation continues, passing through the state shown in FIG. 27(c), and finally reaching the state shown in FIG. 27(d). During this rotation, the housing may be fixed without rotating. Alternatively, the housing may simply be inserted in the insertion direction without rotating. Meanwhile, since the tip portion rotates, the pad electrode 27 provided at the tip portion rotates in the same manner as the tip portion. That is, when viewed as a whole ink cartridge, the pad electrode 27 moves in a moving direction different from the insertion direction (here, the housing insertion direction) with the first portion 20a at the front. This movement enables electrical connection of the pad electrode 27 to the electrical connection portion.

[0193] 27, the housing of the ink cartridge 20 is described as being rectangular prism-shaped, and the tip portion is also similarly rectangular prism-shaped. The shape of the ink cartridge 20 is not limited to this, and the housing or tip portion may be, for example, cylindrical or triangular prism-shaped as described above. The combination of the shapes of the housing and tip portion is also not particularly limited, and may be a combination of different shapes, such as a cylindrical housing and a rectangular tip portion.

[0194] [Eighth embodiment] A mode in which the ink cartridge is rotated using a grip provided on the ink cartridge will be described with reference to Figure 28. In Figure 28, part of the configuration of the mounting portion is omitted.

[0195] First, prepare an ink cartridge 20 having a grip portion 33. This ink cartridge 20 is inserted into the hole of the hole forming member of the mounting portion along the insertion direction, until it is in the state shown in Figure 28(a).

[0196] Next, the user grips the grip portion 33, or a member of the recording device grips the grip portion 33, and rotates the ink cartridge 20. In this manner, the ink cartridge 20 is rotated as shown in Figures 28(b) and 28(c), and the pad electrodes 27 of the electrode portion 26 can be electrically connected to the electrical connection portion. Note that the ink cartridge 20 may be inserted using the grip portion 33 even when inserting the ink cartridge 20 along the insertion direction.

[0197] Even when the ink cartridge 20 is rotated using the grip portion 33, the ink cartridge 20 may be rotated using the positioning wall or guide portion described above, or may be rotated without using these. If these are not used, a mark may be placed on the ink cartridge 20, and the user may grip the grip portion 33 using this mark as a guide to start rotating the ink cartridge 20.

[0198] The grip portion 33 is preferably provided on the portion of the ink cartridge 20 opposite the side where the insertion portion 24 is located, i.e., on the side closer to the second portion 20b than the first portion 20a. It is also preferable to provide the grip portion 33 on the third portion 20c. For example, as shown in FIG. 28, the third portion 20c is partially recessed to form a recess, and the recess can be used as the grip portion 33.

[0199] It is preferable to provide two gripping portions 33 at opposing positions on the ink cartridge 20. Alternatively, the diameter of the second portion 20b side of the ink cartridge 20 may be made smaller all around, and this smaller portion may serve as the gripping portion. The depth of the gripping portion 33 is preferably 5 mm or more and 15 mm or less, and more preferably 6 mm or more and 13 mm or less.

[0200] In addition, the gripping portion 33 is preferably arranged such that the portion on the first portion 20a side is located at a position 190 mm or more and 210 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. On the other hand, the portion on the second portion 20b side of the gripping portion 33 is preferably arranged at a position 200 mm or more and 250 mm or less from the first portion 20a in a distance parallel to the direction from the first portion 20a to the second portion 20b of the ink cartridge 20. Also, it is more preferable that the gripping portion 33 is arranged at a position 230 mm or more and 240 mm or less from the first portion 20a. When the gripping portion 33 is formed up to the same position as the second portion 20b, the length in the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 is the length from the first portion 20a to the position on the second portion 20b side of the gripping portion 33. In addition, in FIG. 28, the direction from the first portion 20a to the second portion 20b of the ink cartridge 20 coincides with the longitudinal direction of the ink cartridge 20.

[0201] Although the above description has been given of a configuration in which the pad electrode 27 moves in a direction different from the insertion direction of the ink cartridge 20 by rotating the ink cartridge 20, the present invention is not limited to this. For example, even if the ink cartridge 20 is not rotated, the pad electrode 27 can be moved in a direction different from the insertion direction of the ink cartridge 20 to ensure a good connection between the pad electrode 27 and the electrical connection portion.

[0202] [Ninth embodiment] In the first to eighth embodiments, an ink cartridge that stores ink has been described as a member that is attached (or can be attached) to the mounting portion. In the ninth embodiment, a member that does not store ink will be described as a member that is attached (or can be attached) to the mounting portion. Note that the contents described so far about the ink cartridge can be similarly applied to members that do not store ink, except for the contents that are specific to the ink cartridge.

[0203] Figure 29 shows member 34 as an example of a member that does not contain ink. Member 34 shown in Figure 29 corresponds to the portion including the small diameter portion of ink cartridge 20 shown in Figure 6. It also corresponds to the portion including cover member 78 shown in Figure 7. Member 34 shown in Figure 29 does not contain ink inside.

[0204] The basic configuration of the member 34 is similar to that of the first embodiment, particularly the configuration described with reference to FIG. 6. The member 34 has at least a first portion 34a, a second portion 34b, and a third portion 34c as portions facing outward of the member 34. The portion on the side where the insertion portion 24 is located is the first portion 34a. The portion opposite the first portion 34a is the second portion 34b. The first portion 34a and the second portion 34b are connected by the third portion 34c. The first portion 34a and the second portion 34b are ends of the member 34, and can also be referred to as the first end and the second end, respectively. The third portion 34c is between the first portion 34a and the second portion 34b, and in FIG. 29, the third portion 34c is perpendicular to the first portion 34a and the second portion 34b (extends in a direction perpendicular to the first portion 34a and the second portion 34b). The first portion 34a, the second portion 34b, and the third portion 34c may each be a surface. Alternatively, the first portion 34a, the second portion 34b, and the third portion 34c may not each be a surface. For example, if the member 34 has a triangular pyramid shape, the first portion 34a may be the base of the triangular pyramid, and the third portion 34c may be the apex on the base of the triangular pyramid. The outward facing portion of the member 34 refers to the portion that faces away from the center of the member 34.

[0205] The first portion 34a is the front portion of the member 34, and is a surface in FIG. 29. The first portion 34a has an insertion portion 24 into which the ink receiving tube 21 shown in FIG. 3 and the like is inserted. The insertion portion 24 may be provided with a seal member having an opening. When a seal member is provided, the ink receiving tube is inserted into an opening provided in the seal member of the insertion portion 24.

[0206] The member 34 is composed of a large diameter portion having a relatively large diameter and a small diameter portion having a relatively smaller diameter than the large diameter portion. The portion of the small diameter portion on the side where the insertion portion 24 is located is the first portion 34a. The second portion 34b is provided on the large diameter portion. The third portion 34c connecting the first portion 34a and the second portion 34b is a surface that spans the large diameter portion and the small diameter portion and has a step between the large diameter portion and the small diameter portion.

[0207] The third portion 34c is provided with a protrusion 25 and an ID protrusion 28. In Fig. 29, the protrusion 25 protrudes from the small diameter portion of the third portion 34c. On the other hand, the ID protrusion 28 protrudes from the large diameter portion of the third portion 34c.

[0208] The protrusion 25 has a ceiling surface 25a which forms the ceiling of the protrusion, and protrusion side surfaces 25b. There are four protrusion side surfaces 25b, which are connected at the top by the ceiling surface 25a. An electrode section 26 which is a chip is provided on the ceiling surface 25a. The electrode section 26 is provided with a plurality of pad electrodes 27 which come into contact with an electrical connection section of the recording device (mounting section) and are electrically connectable to the electrical connection section.

[0209] The ceiling surface 25a is a portion facing outward of the member 34 and is a part of the portion connecting the first portion 34a and the second portion 34b, and is therefore a part of the third portion 34c. In other words, it can be said that the electrode portion 26 and the multiple pad electrodes 27 are provided on the third portion 34c.

[0210] The electrode portion 26 may be composed of only the pad electrodes 27. In this case, the pad electrodes 27 are directly disposed on the ceiling surface 25a of the protruding portion 25. In Fig. 29, the positions of the centers of gravity of the multiple pad electrodes 27 are aligned on the ceiling surface 25a of the protruding portion 25 in a direction perpendicular to the direction from the first portion 34a to the second portion 34b of the member 34. Each pad electrode 27 has a rectangular shape.

[0211] FIG. 30 shows how the member 34 is attached to the attachment part. Basically, it is the same as the contents explained in FIG. 8 and FIG. 9. The ink receiving tube is inserted into the insertion part 24, but since ink is not stored inside the member 34, ink is not supplied to the ink receiving tube simply by attaching the member 34 to the attachment part. The insertion part 24 may be any part into which the ink receiving tube is inserted. When attaching the member 34 to the attachment part, if it is difficult to attach the member 34 inside the hole of the hole forming member due to space restrictions, it is possible to hold the member 34 with a gripping member (not shown) and rotate the member 34 by operating the gripping member outside the hole of the hole forming member, for example.

[0212] In mounting this member 34 as well, the member 34 is inserted along the insertion direction with the first portion 34a at the front until it reaches the state shown in Fig. 30(a). Then, the member 34 is rotated as shown in Fig. 30(b) and Fig. 30(c). Fig. 30(c) shows the state where the pad electrode 27 of the member 34 comes into contact with the electrical connection portion of the mounting portion and mounting of the member 34 is completed. By mounting as shown in Fig. 30, the moving direction of the pad electrode 27 becomes a direction different from the insertion direction of the member 34.

[0213] [Tenth embodiment] As explained in the ink cartridge, in the member 34 explained in the ninth embodiment, the electrical connection portion 22 of the mounting portion comes into contact with the center of gravity of each of the multiple pad electrodes 27, and the pad electrodes 27 can be electrically connected to the electrical connection portion 22. In this example, when considering the points where the electrical connection portion 22 and the pad electrodes 27 come into contact, i.e., the electrical contacts, the electrical contacts of each pad electrode 27 are aligned in a direction parallel to the movement direction of the pad electrode 27.

[0214] In contrast to this, in the tenth embodiment, the electrical contacts of each pad electrode 27 are arranged in a direction intersecting the movement direction of the pad electrode 27. That is, the direction in which the electrical contacts of each pad electrode 27 with the electrical connection portion 22 are arranged is not parallel to the movement direction of the pad electrode 27. Note that the intersecting direction also includes the perpendicular direction.

[0215] The process of mounting such member 34 to the mounting portion is shown in Figures 31(a) to (c). Basically, it is the same as the contents explained in Figures 11 and 12, and member 34 shown in Figure 31(a) is rotated with a screw until it reaches the state shown in Figure 31(c). An example of the arrangement of multiple pad electrodes 27 is also as shown in Figure 13.

[0216] In the tenth embodiment, the electrical contacts of the pad electrodes 27 are arranged in a direction intersecting the moving direction of the pad electrodes 27. The electrical contacts of the pad electrodes 27 are preferably arranged at an angle of 60 degrees or more with respect to the moving direction of the pad electrodes 27, more preferably at an angle of 70 degrees or more, and even more preferably at an angle of 80 degrees or more. Furthermore, the electrical contacts of the pad electrodes 27 are preferably arranged in a direction perpendicular to the moving direction of the pad electrodes 27 (so that the angle between the two directions and the perpendicular direction is 90 degrees). The angle at which the two directions intersect is the angle of the smallest angle (combination of the angles) among the four angles formed by the two directions. Therefore, the angle at which the two directions intersect is at most 90 degrees (at this time, the two directions are perpendicular). The moving direction of the pad electrodes in the tenth embodiment is the direction in which an approximate straight line (approximate straight line) extends, as described in the third embodiment.

[0217] The electrical contacts of the pad electrodes 27 can be considered as being replaced with the areas of the pad electrodes 27. Also, the direction in which the electrical contacts are arranged can be considered in relation to the direction from the first portion 34a to the second portion 34b of the member 34 or the direction in which the member 34 is inserted into the hole forming member, rather than in relation to the moving direction of the pad electrodes 27. Even in these configurations, good contact between the pad electrodes 27 and the electrical connection portions 22 can be achieved.

[0218] For example, it is preferable that the multiple pad electrodes 27 are arranged so that each pad electrode 27 has an area aligned in a direction intersecting the moving direction of the pad electrode 27. That is, as shown in FIG. 13(h), it is preferable that the line U intersects with the moving direction of the pad electrode 27 when viewed from a direction perpendicular to the surface of the pad electrode 27. It is preferable that the multiple pad electrodes 27 have an area aligned at an inclination of 60 degrees or more with respect to the moving direction of the pad electrode 27, more preferably an area aligned at an inclination of 70 degrees or more, and even more preferably an area aligned at an inclination of 80 degrees or more. That is, it is preferable that the line U is inclined at an inclination of 60 degrees or more with respect to the moving direction of the pad electrode 27 when viewed from a direction perpendicular to the surface of the pad electrode 27, more preferably an area aligned at an inclination of 70 degrees or more, and even more preferably an area aligned at an inclination of 80 degrees or more. Furthermore, it is preferable that the multiple pad electrodes 27 have an area aligned in a direction perpendicular to the moving direction of the pad electrode (so that the angle between the two directions is 90 degrees with respect to the perpendicular direction). That is, when viewed from a direction perpendicular to the surface of the pad electrode 27, it is preferable that the line U is perpendicular to the moving direction of the pad electrode 27. When the moving direction of the pad electrode is curved or screw-shaped, the moving direction of the pad electrode is considered to be the direction in which an approximate straight line extends, as described above.

[0219] In addition, the direction in which the regions of the pad electrodes 27 are arranged preferably intersects with the direction from the first portion 34a to the second portion 34b of the member 34. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the line U preferably intersects with the W direction (the direction from the first portion 34a to the second portion 34b). The direction in which the regions of the pad electrodes 27 are arranged preferably inclines at 10 degrees or more and 60 degrees or less with respect to the direction from the first portion 34a to the second portion 34b of the member 34, and more preferably inclines at 30 degrees or more and 35 degrees or less. That is, when viewed from a direction perpendicular to the surface of the pad electrode 27, the angle (angle γ) at which the line U and the W direction in FIG. 13(h) intersect is preferably 10 degrees or more and 60 degrees or less, and more preferably 30 degrees or more and 35 degrees or less. In the case of a combination of regions where the angle between the direction from the first portion 34a to the second portion 34b of the member 34 and the direction in which the regions of the pad electrodes 27 are aligned is the largest, this angle (angle α) is preferably 40 degrees or more and 60 degrees or less. On the other hand, in the case of a combination of regions where the angle between the direction from the first portion 34a to the second portion 34b of the member 34 is the smallest, this angle (angle β) is preferably 10 degrees or more and 20 degrees or less. The direction from the first portion 34a to the second portion 34b of the member 34 can also be considered as the longitudinal direction of the member 34.

[0220] In addition, the direction in which the regions of the pad electrodes 27 are arranged preferably intersects with the insertion direction of the member 34. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the line U preferably intersects with the W direction (the insertion direction of the member 34). In the direction in which the regions of the pad electrodes 27 are arranged preferably inclines with respect to the insertion direction of the member 34 by 10 degrees or more and 60 degrees or less. That is, as shown in FIG. 13(h), when viewed from a direction perpendicular to the surface of the pad electrode 27, the angle (angle γ) at which the line U intersects with the W direction is preferably 10 degrees or more and 60 degrees or less. In the case of a combination of regions in which the angle between the direction in which the regions of the pad electrodes 27 are arranged and the insertion direction of the member 34 is the largest, this angle (angle α) is preferably 40 degrees or more and 60 degrees or less. On the other hand, in the case of a combination of areas in which the areas of each pad electrode 27 are arranged in a direction that forms the smallest angle with the insertion direction of the component 34, this angle (angle β) is preferably 10 degrees or more and 20 degrees or less.

[0221] Moreover, the direction in which the electrical contacts of the pad electrodes 27 are arranged preferably intersects with the longitudinal direction of the member 34. The direction in which the electrical contacts of the pad electrodes 27 are arranged preferably is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the longitudinal direction of the member 34. More preferably, the angle is inclined at an angle of 30 degrees or more and 35 degrees or less.

[0222] Moreover, the direction in which the electrical contacts of the pad electrodes 27 are arranged preferably intersects with the direction from the first portion 34a to the second portion 34b of the member 34. The direction in which the electrical contacts of the pad electrodes 27 are arranged preferably is inclined at 20 degrees or more and 40 degrees or less with respect to the direction from the first portion 34a to the second portion 34b of the member 34. More preferably, the direction is inclined at 30 degrees or more and 35 degrees or less. In the tenth embodiment, the direction from the first portion 34a to the second portion 34b coincides with the longitudinal direction and the insertion direction of the member 34.

[0223] In addition, the direction in which the electrical contacts of the pad electrodes 27 are arranged preferably intersects with the insertion direction of the member 34. The direction in which the electrical contacts of the pad electrodes 27 are arranged preferably has an inclination of 20 degrees or more and 40 degrees or less with respect to the insertion direction of the member 34. It is more preferable that the inclination is 30 degrees or more and 35 degrees or less.

[0224] Incidentally, it is preferable that the member 34 shown in the tenth embodiment also has a space below the pad electrodes, similar to the ink cartridge in the fifth embodiment.

[0225] [Eleventh embodiment] The member 34 attached to the attachment portion in the ninth and tenth embodiments can be used for various purposes, and the member can also be used as a part of the ink cartridge or together with the ink cartridge.

[0226] FIG. 32 shows an example in which the member 34 is used as a part of an ink cartridge. In FIG. 32, an ink cartridge member 35 having an ink storage section in which ink is stored is attached to the member 34. In this configuration, the member 34 described in the ninth embodiment or the tenth embodiment is first attached to the mounting section of the recording device. After the member 34 is mounted, the ink cartridge member 35 is mounted to the member 34. The ink cartridge member 35 stores ink to be supplied to the recording head inside, and has a supply port 35a for supplying the stored ink to the recording device. When the ink cartridge member 35 is mounted to the member 34, the supply port 35a of the ink cartridge member 35 is arranged at the position of the insertion section 24 (opening) of the member 34. Then, the ink receiving tube of the recording device is inserted into the insertion section 24 of the member 34 and the supply port 35a of the ink cartridge member 35. This allows the ink stored in the ink cartridge member 35 to be supplied to the recording head through the ink receiving tube.

[0227] FIG. 33 shows a schematic configuration in which the member 34 is mounted in the mounting portion, and then the ink cartridge member 35 is mounted. FIG. 33(a) shows the member 34 as viewed from the outside, and FIGS. 33(b) to (d) show the inside of the member 34. First, as shown in FIGS. 33(a) and 33(b), the member 34 is mounted in the mounting portion. This mounting is as described above. Next, as shown in FIGS. 33(c) and 33(d), the ink cartridge member 35 is mounted in the member 34 and the mounting portion. As shown in FIG. 33(d), the supply port 35a of the ink cartridge member 35 is disposed at the position of the insertion portion 24 of the member 34.

[0228] Up to this point, an example has been described in which a portion corresponding to a portion including a small diameter portion of the ink cartridge is used as the member 34. The member 34 may have a shape as shown in Fig. 34. First, a cylindrical member 34 as shown in Fig. 34(a) and a similarly cylindrical ink cartridge member 35 are prepared. A pad electrode is provided on the member 34. Then, after the member 34 is mounted in the mounting portion, the ink cartridge member 35 is mounted thereafter as shown in Figs. 34(b) and 34(c).

[0229] [Twelfth embodiment] In the eleventh embodiment, a configuration has been described in which the ink cartridge member 35, which is an ink cartridge, is directly connected to the member 34 and the mounting portion. In the twelfth embodiment, a configuration will be described in which a tube connectable to an ink receiving tube is attached (connected) to the member 34, and the end of the connected tube opposite to the ink receiving tube side is connected to a supply port of the ink storage bottle 36.

[0230] An example of the configuration of the twelfth embodiment is shown in Fig. 35. In Fig. 35, the ink storage section of the ink storage bottle 36 communicates with the ink receiving tube 21 via a tube 37. The tube 37 is connected to the ink receiving tube 21 via the insertion section 24, and supplies the ink stored inside the ink storage bottle 36 to the ink receiving tube 21.

[0231] 35, there is a large degree of freedom in designing the ink storage bottle 36, and it is easy to enlarge the ink storage portion of the ink storage bottle 36. Therefore, it is possible to increase the capacity of the ink storage bottle 36 and supply ink from this large-capacity ink storage bottle 36.

[0232] The attachment of the member 34 to the attachment portion and the like are similar to those described above.

[0233] [Thirteenth embodiment] The configuration of the electrode portion 26 of the member 34 may be a pattern as shown in Fig. 36. Fig. 36 is an enlarged view of only the periphery of the electrode portion 26 of the member 34. In Fig. 36(a), the electrode portion 26 and the pad electrode 27 are arranged on the protruding portion 25, and the configuration is as described above. In Fig. 36(b), unlike Fig. 36(a), the upper surface of the protruding portion 25 is an inclined surface, and the electrode portion 26 and the pad electrode 27 are arranged on this inclined surface.

[0234] In Fig. 36(c), member 34 does not have a protrusion on which electrode portion 26 and pad electrode 27 are arranged, and electrode portion 26 and pad electrode 27 are provided directly on the side surface of member 34. Fig. 36(d) is an example in which the arrangement of pad electrode 27 is different from that in Fig. 36(c).

[0235] The configuration examples of the electrode portion 26 and the pad electrodes 27 of the member 34 shown here can also be applied to ink cartridges.

[0236] [Fourteenth embodiment] As an example of the configuration of the electrode portion 26 and the pad electrode 27 of the member 34 different from the example shown in the thirteenth embodiment, a configuration shown in FIG. 37 can be given.

[0237] 37(a) to (d) are views of the periphery of electrode portion 26 of component 34 viewed from four directions. In Fig. 37, pad electrode 27 is shaped to protrude from electrode portion 26 on protruding portion 25. Even in this case, protruding portion 25 may not be provided, and pad electrode 27 may be shaped to protrude from the surface of component 34.

[0238] Incidentally, the configuration examples of the electrode portion 26 and the pad electrodes 27 of the member 34 shown here can also be applied to ink cartridges in the same manner.

[0239] [Preferable configuration example of the present invention] Finally, the preferred configuration examples disclosed in the present application can be summarized as follows: The contents described in each configuration example can be appropriately combined within a range that does not cause inconsistency.

[0240] (Configuration example A) (Configuration example A-1) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; The member is attached to the mounting portion by being inserted into the mounting portion along an insertion direction in which the first portion is forward, The member, characterized in that the plurality of pad electrodes can be electrically connected to the electrical connection portion by being moved in a direction different from the insertion direction.

[0241] (Configuration example A-2) The member according to configuration example A-1, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is a direction intersecting a moving direction of the pad electrodes.

[0242] (Configuration example A-3) The member according to configuration example A-2, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 60 degrees or more with respect to a moving direction of the pad electrodes.

[0243] (Configuration example A-4) The member according to configuration example A-2, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 70 degrees or more with respect to a moving direction of the pad electrodes.

[0244] (Configuration example A-5) The member according to configuration example A-2, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 80 degrees or more with respect to a moving direction of the pad electrodes.

[0245] (Configuration example A-6) The member according to configuration example A-2, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is perpendicular to a moving direction of the pad electrodes.

[0246] (Configuration example A-7) A component described in any of configuration examples A-1 to A-6, in which the electrical contact point of each of the multiple pad electrodes with the electrical connection portion is positioned at a position that is 5 mm or more and 25 mm or less from the first portion, at a distance parallel to the direction from the first portion to the second portion.

[0247] (Configuration example A-8) A component described in any of configuration examples A-1 to A-6, in which the electrical contact point of each of the multiple pad electrodes with the electrical connection portion is located at a distance of 10 mm or more and 20 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0248] (Configuration example A-9) A component described in any of configuration examples A-1 to A-8, wherein, among the electrical contacts with the electrical connection portion of each of the multiple pad electrodes, the electrical contact closest to the first portion is located at a position 5 mm or more and 15 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0249] (Configuration example A-10) A component described in any of configuration examples A-1 to A-8, wherein, among the electrical contacts with the electrical connection portion of each of the multiple pad electrodes, the electrical contact closest to the first portion is located at a position 10 mm or more and 11 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0250] (Configuration example A-11) A component described in any of configuration examples A-1 to A-10, wherein, among the electrical contacts of each of the multiple pad electrodes with the electrical connection portion, the electrical contact farthest from the first portion is located at a position 15 mm or more and 25 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0251] (Configuration example A-12) A component described in any of configuration examples A-1 to A-10, wherein, among the electrical contacts of each of the multiple pad electrodes with the electrical connection portion, the electrical contact farthest from the first portion is located at a position 17 mm or more and 18 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0252] (Configuration example A-13) A component described in any of configuration examples A-1 to A-12, in which the direction in which electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is a direction that intersects with the direction from the first portion to the second portion.

[0253] (Configuration example A-14) A component described in configuration example A-13, in which the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined by 20 degrees or more and 40 degrees or less with respect to the direction from the first portion to the second portion.

[0254] (Configuration example A-15) A component described in configuration example A-13, in which the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined by 30 degrees or more and 35 degrees or less with respect to the direction from the first portion to the second portion.

[0255] (Configuration example A-16) The member according to any one of configuration examples A-1 to A-15, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is a direction intersecting a longitudinal direction of the member.

[0256] (Configuration example A-17) The member according to configuration example A-16, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the longitudinal direction of the member.

[0257] (Configuration example A-18) The member according to configuration example A-16, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the longitudinal direction of the member.

[0258] (Configuration example A-19) The member according to any one of configuration examples A-1 to A-18, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged intersects with the insertion direction.

[0259] (Configuration example A-20) The member according to configuration example A-19, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the insertion direction.

[0260] (Configuration example A-21) The member according to configuration example A-19, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the insertion direction.

[0261] (Configuration example A-22) The member according to any one of configuration examples A-1 to A-21, wherein a point where the pad electrode and the electrical connection portion of the recording device contact each other is an electrical contact.

[0262] (Configuration example A-23) The member according to any one of configuration examples A-1 to A-22, wherein the electrical contacts of all of the pad electrodes with the electrical connection portion coincide with the center of gravity of the pad electrodes.

[0263] (Configuration example A-24) A member described in any of configuration examples A-1 to A-22, having, among the multiple pad electrodes, a pad electrode whose electrical contact with the electrical connection portion coincides with the center of gravity of the pad electrode and a pad electrode whose electrical contact with the electrical connection portion does not coincide with the center of gravity of the pad electrode.

[0264] (Configuration example A-25) The member according to any one of configuration examples A-1 to A-24, wherein the plurality of pad electrodes have pad electrodes whose length from an electrical contact with the electrical connection portion is 0.5 mm or more and 4.0 mm or less.

[0265] (Configuration example A-26) The member according to any one of configuration examples A-1 to A-25, wherein the third portion has a guide portion for rotating the member.

[0266] (Configuration example A-27) The member according to configuration example A-26, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged intersects with an extending direction of the guide portion.

[0267] (Configuration example A-28) The member according to configuration example A-27, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 60 degrees or more with respect to an extending direction of the guide portion.

[0268] (Configuration example A-29) The member according to configuration example A-27, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 70 degrees or more with respect to an extending direction of the guide portion.

[0269] (Configuration example A-30) The member according to configuration example A-27, wherein a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 75 degrees or more with respect to an extending direction of the guide portion.

[0270] (Configuration example A-31) A member according to any one of configuration examples A-26 to A-30, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at an angle of 85 degrees or less with respect to the extension direction of the guide portion.

[0271] (Configuration example A-32) The member according to any one of configuration examples A-26 to A-31, wherein the guide portion is a groove.

[0272] (Configuration example A-33) The member according to configuration example A-32, wherein the groove is a screw-shaped groove.

[0273] (Configuration example A-34) The member according to configuration example A-32 or A-33, wherein the depth of the guide portion is 1.0 mm or more and 5.0 mm or less.

[0274] (Configuration example A-35) The member according to configuration example A-32 or A-33, wherein the depth of the guide portion is 2.0 mm or more and 4.0 mm or less.

[0275] (Configuration example A-36) A member according to any one of configuration examples A-32 to A-35, in which a rib is arranged inside the guide portion.

[0276] (Configuration example A-37) The member according to configuration example A-36, wherein the height of the rib is 1.5 mm or more and 2.0 mm or less.

[0277] (Configuration example A-38) The member according to configuration example A-36 or A-37, wherein the height of the rib is shorter than the depth of the guide portion.

[0278] (Configuration example A-39) The member according to any one of configuration examples A-32 to A-38, in which a lock pin of the mounting portion is inserted into the guide portion, thereby guiding the member to rotate.

[0279] (Configuration example A-40) The member according to any one of configuration examples A-26 to A-39, wherein the guide portion extends in a direction intersecting a direction from the first portion toward the second portion.

[0280] (Configuration example A-41) The member according to configuration example A-40, wherein the extending direction of the guide portion is inclined at an angle of 50 degrees or more and 80 degrees or less with respect to the direction from the first portion to the second portion.

[0281] (Configuration example A-42) The member according to configuration example A-40, wherein the extending direction of the guide portion is inclined at an angle of 60 degrees or more and 70 degrees or less with respect to the direction from the first portion to the second portion.

[0282] (Configuration example A-43) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the guide portion is provided on the large diameter portion. A member described in any of configuration examples A-26 to A-42.

[0283] (Configuration example A-44) The member according to any one of configuration examples A-26 to A-43, wherein the member has a second guide portion different from the guide portion at a position facing the guide portion.

[0284] (Configuration example A-45) The member according to any one of configuration examples A-26 to A-44, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the extending direction of the guide portion.

[0285] (Configuration example A-46) The member according to configuration example A-45, wherein each of the plurality of pad electrodes has a region aligned at an angle of 60 degrees or more with respect to the extending direction of the guide portion.

[0286] (Configuration example A-47) The member according to configuration example A-45, wherein each of the plurality of pad electrodes has a region inclined at an angle of 70 degrees or more with respect to the extending direction of the guide portion.

[0287] (Configuration example A-48) The member according to configuration example A-45, wherein each of the plurality of pad electrodes has a region aligned at an angle of 75 degrees or more with respect to the extending direction of the guide portion.

[0288] (Configuration example A-49) The member according to any one of configuration examples A-45 to A-48, wherein each of the plurality of pad electrodes has a region aligned at an angle of 85 degrees or less with respect to the extending direction of the guide portion.

[0289] (Configuration example A-50) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the multiple pad electrodes are provided on the small diameter portion. A member described in any of configuration examples A-1 to A-49.

[0290] (Configuration example A-51) The member described in configuration example A-50, wherein the first portion is provided in the small diameter portion, the second portion is provided in the large diameter portion, and the third portion is provided across the large diameter portion and the small diameter portion.

[0291] (Configuration example A-52) The member according to configuration example A-50 or A-51, wherein the diameter of the large diameter portion is 50 mm or more and 80 mm or less.

[0292] (Configuration example A-53) A member according to any one of configuration examples A-50 to A-52, wherein the diameter of the small diameter portion is 20 mm or more and 30 mm or less.

[0293] (Configuration example A-54) A member according to any one of configuration examples A-50 to A-53, wherein the length of the large diameter portion in a direction parallel to the direction from the first portion to the second portion is 190 mm or more and 220 mm or less.

[0294] (Configuration example A-55) A member according to any one of configuration examples A-50 to A-54, wherein the length of the small diameter portion in a direction parallel to the direction from the first portion to the second portion is 20 mm or more and 30 mm or less.

[0295] (Configuration example A-56) The member according to any one of configuration examples A-1 to A-55, wherein the member has a protruding portion that protrudes from the surrounding area in the third portion.

[0296] (Configuration example A-57) The member according to configuration example A-56, wherein the pad electrode is provided on the protrusion.

[0297] (Configuration example A-58) The member according to configuration example A-56 or A-57, wherein the member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the protrusion portion is provided on the small diameter portion.

[0298] (Configuration example A-59) A component described in any of configuration examples A-56 to A-58, wherein when the protrusion is viewed from the side where the pad electrode is provided, the size of the ceiling surface of the protrusion on which the pad electrode is provided has a maximum length of one side of 9 mm or more and 16 mm or less.

[0299] (Configuration example A-60) The member according to any one of configuration examples A-56 to A-59, wherein the height of the protrusion is 3 mm or more and 10 mm or less.

[0300] (Configuration example A-61) The member according to any one of configuration examples A-56 to A-59, wherein the height of the protrusion is 3 mm or more and 8 mm or less.

[0301] (Configuration example A-62) A component described in any of configuration examples A-56 to A-61, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 5 mm and 10 mm from the first portion.

[0302] (Configuration example A-63) A component described in any of configuration examples A-56 to A-61, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 6 mm and 7 mm from the first portion.

[0303] (Configuration example A-64) A component described in any of configuration examples A-56 to A-63, wherein the protrusion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 20 mm and less than or equal to 25 mm from the first portion.

[0304] (Configuration example A-65) A component described in any of configuration examples A-56 to A-63, wherein the protrusion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 22 mm and less than or equal to 23 mm from the first portion.

[0305] (Configuration example A-66) A component described in any of configuration examples A-56 to A-65, wherein the mounting portion has a positioning wall, and by rotating the component while contacting the protrusion with the positioning wall, the multiple pad electrodes move in a direction different from the insertion direction.

[0306] (Configuration example A-67) A component described in any of configuration examples A-56 to A-66, wherein the angle between the side surface of the protrusion and the direction from the first portion to the second portion is greater than or equal to 50 degrees and less than 70 degrees.

[0307] (Configuration example A-68) A component described in any of configuration examples A-56 to A-66, wherein the angle between the side surface of the protrusion and the direction from the first portion to the second portion is 55 degrees or more and 60 degrees or less.

[0308] (Configuration example A-69) A member according to any one of configuration examples A-56 to A-68, in which a portion of the side surface of the protrusion is convex.

[0309] (Configuration example A-70) The member according to any one of configuration examples A-56 to A-69, wherein a gap is provided below the pad electrode, and the gap is provided in the protruding portion.

[0310] (Configuration example A-71) The member according to configuration example A-70, wherein the gap is an opening in the protruding portion on the side of the first portion of the member.

[0311] (Configuration example A-72) The member according to any one of configuration examples A-1 to A-69, wherein a gap is provided below the pad electrode.

[0312] (Configuration example A-73) A member according to any one of configuration examples A-70 to A-72, in which a support member of the mounting portion is inserted into the gap.

[0313] (Configuration example A-74) A component described in any of configuration examples A-70 to A-73, wherein when the gap is viewed from the side facing the pad electrode, the portion constituting the outer periphery of the gap has a maximum length of one side of 10 mm or more and 15 mm or less.

[0314] (Configuration example A-75) The member according to any one of configuration examples A-70 to A-74, wherein the height of the gap is 1 mm or more and 5 mm or less.

[0315] (Configuration example A-76) The member according to any one of configuration examples A-70 to A-74, wherein the height of the gap is 2 mm or more and 3 mm or less.

[0316] (Configuration example A-77) The member according to any one of configuration examples A-70 to A-76, wherein there is a portion below the pad electrode where the gap is not provided.

[0317] (Configuration example A-78) The member according to any one of Structural Examples A-1 to A-77, having an ID convex portion in the third portion.

[0318] (Configuration example A-79) A component described in configuration example A-78, in which the ID convex portion is arranged at a distance in a direction parallel to the direction from the first portion to the second portion, with the portion on the first portion side positioned at a position greater than or equal to 40 mm and less than or equal to 50 mm from the first portion.

[0319] (Configuration example A-80) A component described in configuration example A-78, in which the ID convex portion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 41 mm and 45 mm from the first portion.

[0320] (Configuration example A-81) A component described in any of configuration examples A-78 to A-80, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion at a position greater than or equal to 50 mm and less than or equal to 60 mm from the first portion.

[0321] (Configuration example A-82) A component described in any of configuration examples A-78 to A-80, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 55 mm and less than or equal to 58 mm from the first portion.

[0322] (Configuration example A-83) The member according to any one of configuration examples A-78 to A-82, wherein the height of the ID convex portion is 3 mm or more and 10 mm or less.

[0323] (Configuration example A-84) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the ID protrusion is provided on the large diameter portion.

[0324] (Configuration example A-85) A member according to any one of configuration examples A-1 to A-84, in which the member rotates about an axis along the insertion direction, causing the multiple pad electrodes to move in a direction different from the insertion direction.

[0325] (Configuration example A-86) The member according to any one of configuration examples A-1 to A-84, wherein the member rotates about a central axis of the member as a rotation axis, thereby moving the multiple pad electrodes in a direction different from the insertion direction.

[0326] (Configuration example A-87) A member described in any one of configuration examples A-1 to A-84, wherein the member rotates around the ink receiving tube as a rotation axis, causing the multiple pad electrodes to move in a direction different from the insertion direction.

[0327] (Configuration example A-88) A member according to any one of configuration examples A-85 to A-87, wherein the rotation is a screw rotation that rotates in a screw-like manner.

[0328] (Configuration example A-89) A member according to any one of configuration examples A-85 to A-88, wherein, during the rotation, the member rotates while being inserted in the insertion direction.

[0329] (Configuration example A-90) The member according to any one of configuration examples A-85 to A-89, wherein the angle by which the member rotates until the ink receiving tube is inserted into the insertion portion is 10 degrees or more and 40 degrees or less.

[0330] (Configuration example A-91) The member according to any one of configuration examples A-85 to A-89, wherein the angle by which the member rotates until the ink receiving tube is inserted into the insertion portion is 20 degrees or more and 25 degrees or less.

[0331] (Configuration example A-92) A member described in any of configuration examples A-85 to A-91, wherein after insertion in the insertion direction, the angle by which the member rotates is 40 degrees or more and 75 degrees or less before the multiple pad electrodes begin to be inserted between two opposing positioning walls sandwiching the multiple electrical connection portions of the mounting portion.

[0332] (Configuration example A-93) A member described in any of configuration examples A-85 to A-91, wherein after insertion in the insertion direction, the angle by which the member rotates is 55 degrees or more and 65 degrees or less before the multiple pad electrodes begin to be inserted between two opposing positioning walls sandwiching the multiple electrical connection portions of the mounting portion.

[0333] (Configuration example A-94) A component described in any of configuration examples A-85 to A-93, wherein after insertion in the insertion direction, the angle by which the component rotates is greater than or equal to 80 degrees and less than or equal to 90 degrees until the multiple pad electrodes begin to contact the multiple electrical connection portions.

[0334] (Configuration example A-95) A component described in any of configuration examples A-85 to A-93, wherein after insertion in the insertion direction, the angle by which the component rotates is 80 degrees or more and 88 degrees or less until the multiple pad electrodes begin to contact the multiple electrical connection portions.

[0335] (Configuration example A-96) The member according to any one of configuration examples A-1 to A-95, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting a moving direction of the pad electrode.

[0336] (Configuration example A-97) The member according to configuration example A-96, wherein each of the plurality of pad electrodes has a region aligned at an angle of 60 degrees or more with respect to the moving direction of the pad electrode.

[0337] (Configuration example A-98) The member according to configuration example A-96, wherein each of the plurality of pad electrodes has a region aligned at an angle of 70 degrees or more with respect to the moving direction of the pad electrode.

[0338] (Configuration example A-99) The member according to configuration example A-96, wherein each of the plurality of pad electrodes has a region aligned at an angle of 80 degrees or more with respect to the moving direction of the pad electrode.

[0339] (Configuration example A-100) The member according to configuration example A-96, wherein each of the plurality of pad electrodes has an area aligned in a direction perpendicular to the moving direction of the pad electrode.

[0340] (Configuration example A-101) A member described in any of configuration examples A-1 to A-100, wherein each of the multiple pad electrodes has an area arranged in a direction intersecting the direction from the first portion to the second portion of the pad electrode.

[0341] (Configuration example A-102) A component described in configuration example A-101, wherein each of the multiple pad electrodes has an area aligned in a direction inclined by 10 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0342] (Configuration example A-103) A component described in configuration example A-101, wherein each of the multiple pad electrodes has a region aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0343] (Configuration example A-104) The component according to any one of configuration examples A-1 to A-103, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the insertion direction of the component.

[0344] (Configuration example A-105) The component according to configuration example A-104, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the insertion direction of the component.

[0345] (Configuration example A-106) The component according to configuration example A-104, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the insertion direction of the component.

[0346] (Configuration example A-107) The member according to any one of configuration examples A-1 to A-106, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the longitudinal direction of the member.

[0347] (Configuration example A-108) The member according to configuration example A-107, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the longitudinal direction of the member.

[0348] (Configuration example A-109) The member according to configuration example A-107, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the longitudinal direction of the member.

[0349] (Configuration example B) (Configuration example B-1) A member having a plurality of pad electrodes, the member includes a first portion, a second portion opposite the first portion, and a third portion having a plurality of pad electrodes and connecting the first portion and the second portion, the third portion being an outward facing portion of the member; A component comprising: a guide portion in the third portion, the guide portion extending in a direction intersecting a direction from the first portion toward the second portion.

[0350] (Configuration example B-2) A component described in configuration example B-1, in which the electrical contact of each of the multiple pad electrodes is positioned at a position that is 5 mm or more and 25 mm or less from the first portion, at a distance parallel to the direction from the first portion to the second portion.

[0351] (Configuration example B-3) A component described in configuration example B-1, in which the electrical contact of each of the multiple pad electrodes is positioned at a position that is 10 mm or more and 20 mm or less from the first portion at a distance parallel to the direction from the first portion to the second portion.

[0352] (Configuration example B-4) A component described in any of configuration examples B-1 to B-3, wherein, among the electrical contacts of each pad electrode in the plurality of pad electrodes, the electrical contact closest to the first portion is positioned at a position that is 5 mm or more and 15 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0353] (Configuration example B-5) A component described in any of configuration examples B-1 to B-3, wherein, among the electrical contacts of each pad electrode in the plurality of pad electrodes, the electrical contact closest to the first portion is positioned at a position that is 10 mm or more and 11 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0354] (Configuration example B-6) A component described in any of configuration examples B-1 to B-5, wherein, among the electrical contacts of each pad electrode in the multiple pad electrodes, the electrical contact farthest from the first portion is located at a position greater than or equal to 15 mm and less than or equal to 25 mm from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0355] (Configuration example B-7) A component described in any of configuration examples B-1 to B-5, wherein, among the electrical contacts of each pad electrode in the multiple pad electrodes, the electrical contact farthest from the first portion is located at a position greater than or equal to 17 mm and less than or equal to 18 mm from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0356] (Configuration example B-8) A member according to any one of configuration examples B-1 to B-7, wherein a direction in which electrical contacts of each of the multiple pad electrodes are arranged is a direction that intersects with a direction from the first portion toward the second portion.

[0357] (Configuration example B-9) The member according to configuration example B-8, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined by 20 degrees or more and 40 degrees or less with respect to the direction from the first portion to the second portion.

[0358] (Configuration example B-10) The member according to configuration example B-8, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined by 30 degrees or more and 35 degrees or less with respect to the direction from the first portion to the second portion.

[0359] (Configuration example B-11) The member according to any one of configuration examples B-1 to B-10, wherein a direction in which electrical contacts of each of the plurality of pad electrodes are arranged is a direction intersecting a longitudinal direction of the member.

[0360] (Configuration example B-12) The member according to configuration example B-11, wherein a direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the longitudinal direction of the member.

[0361] (Configuration example B-13) The member according to configuration example B-11, wherein a direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the longitudinal direction of the member.

[0362] (Configuration example B-14) The member according to any one of configuration examples B-1 to B-13, wherein a direction in which electrical contacts of each of the plurality of pad electrodes are arranged intersects with the insertion direction.

[0363] (Configuration example B-15) The member according to configuration example B-14, wherein a direction in which the electrical contacts of the pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the insertion direction.

[0364] (Configuration example B-16) The member according to configuration example B-14, wherein a direction in which the electrical contacts of the pad electrodes are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the insertion direction.

[0365] (Configuration example B-17) The member according to any one of Structural Examples B-1 to B-16, wherein a point where the pad electrode and the electrical connection portion of the recording device contact each other is an electrical contact.

[0366] (Configuration example B-18) The member according to any one of configuration examples B-1 to B-17, wherein electrical contacts of all of the pad electrodes coincide with the center of gravity of the pad electrodes.

[0367] (Configuration example B-19) A member described in any of configuration examples B-1 to B-18, wherein the multiple pad electrodes include a pad electrode whose electrical contact coincides with the center of gravity of the pad electrode and a pad electrode whose electrical contact does not coincide with the center of gravity of the pad electrode.

[0368] (Configuration example B-20) The member according to any one of configuration examples B-1 to B-19, wherein the plurality of pad electrodes have pad electrodes each having a length from an electrical contact of 0.5 mm or more and 4.0 mm or less.

[0369] (Configuration example B-21) The member according to any one of configuration examples B-1 to B-20, wherein the guide portion is a guide portion for rotating the member.

[0370] (Configuration example B-22) The member according to any one of configuration examples B-1 to B-21, wherein a direction in which electrical contacts of each of the plurality of pad electrodes are arranged is a direction intersecting an extension direction of the guide portion.

[0371] (Configuration example B-23) The member according to configuration example B-22, wherein a direction in which the electrical contacts of the pad electrodes are arranged is inclined by 60 degrees or more with respect to a direction in which the guide portion extends.

[0372] (Configuration example B-24) The member according to configuration example B-22, wherein a direction in which the electrical contacts of the pad electrodes are arranged is inclined by 70 degrees or more with respect to an extending direction of the guide portion.

[0373] (Configuration example B-25) The member according to configuration example B-22, wherein a direction in which the electrical contacts of the pad electrodes are arranged is inclined at 75 degrees or more with respect to an extending direction of the guide portion.

[0374] (Configuration example B-26) The member according to any one of configuration examples B-22 to B-25, wherein a direction in which electrical contacts of the plurality of pad electrodes are arranged is inclined at an angle of 85 degrees or less with respect to an extending direction of the guide portion.

[0375] (Configuration example B-27) The member according to any one of configuration examples B-1 to B-26, wherein the guide portion is a groove.

[0376] (Configuration example B-28) The member according to configuration example B-27, wherein the groove is a screw-shaped groove.

[0377] (Configuration example B-29) The member according to configuration example B-27 or B-28, wherein the depth of the guide portion is 1.0 mm or more and 5.0 mm or less.

[0378] (Configuration example B-30) The member according to configuration example B-27 or B-28, wherein the depth of the guide portion is 2.0 mm or more and 4.0 mm or less.

[0379] (Configuration example B-31) A member according to any one of configuration examples B-27 to B-30, in which a rib is arranged inside the guide portion.

[0380] (Configuration example B-32) The member according to configuration example B-31, wherein the height of the rib is 1.5 mm or more and 2.0 mm or less.

[0381] (Configuration example B-33) The member according to configuration example B-31 or B-32, wherein the height of the rib is shorter than the depth of the guide portion.

[0382] (Configuration example B-34) A member described in any of configuration examples B-31 to B-33, wherein the rib is arranged such that the center of gravity of the rib is located at a distance in a direction parallel to the direction from the first portion to the second portion, and is 40 mm or more and 50 mm or less from the first portion.

[0383] (Configuration example B-35) The member according to any one of configuration examples B-1 to B-34, wherein the guide portion extends in a direction intersecting a direction from the first portion toward the second portion.

[0384] (Configuration example B-36) The member according to configuration example B-35, wherein the extending direction of the guide portion is inclined at an angle of 50 degrees or more and 80 degrees or less with respect to the direction from the first portion to the second portion.

[0385] (Configuration example B-37) The member according to configuration example B-35, wherein the extending direction of the guide portion is inclined at an angle of 60 degrees or more and 70 degrees or less with respect to the direction from the first portion to the second portion.

[0386] (Configuration example B-38) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a relatively smaller diameter than the large diameter portion, and the guide portion is provided on the large diameter portion. A member described in any of configuration examples B-1 to B-37.

[0387] (Configuration example B-39) The member according to any one of configuration examples B-1 to B-38, wherein the member has a second guide portion different from the guide portion at a position facing the guide portion.

[0388] (Configuration example B-40) The member according to any one of configuration examples B-1 to B-39, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with an extending direction of the guide portion.

[0389] (Configuration example B-41) The member according to configuration example B-40, wherein each of the plurality of pad electrodes has a region aligned at an angle of 60 degrees or more with respect to the extending direction of the guide portion.

[0390] (Configuration example B-42) The member according to configuration example B-40, wherein each of the plurality of pad electrodes has a region inclined at an angle of 70 degrees or more with respect to the extending direction of the guide portion.

[0391] (Configuration example B-43) The member according to configuration example B-40, wherein each of the plurality of pad electrodes has a region aligned at an angle of 75 degrees or more with respect to the extending direction of the guide portion.

[0392] (Configuration example B-44) The member according to any one of configuration examples B-40 to B-43, wherein each of the plurality of pad electrodes has a region in which the pad electrodes are aligned at an angle of 85 degrees or less with respect to the extending direction of the guide portion.

[0393] (Configuration example B-45) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the multiple pad electrodes are provided on the small diameter portion. A member described in any of configuration examples B-1 to B-44.

[0394] (Configuration example B-46) The member described in configuration example B-45, wherein the first portion is provided in the small diameter portion, the second portion is provided in the large diameter portion, and the third portion is provided across the large diameter portion and the small diameter portion.

[0395] (Configuration example B-47) The member according to configuration example B-45 or B-46, wherein the diameter of the large diameter portion is 50 mm or more and 80 mm or less.

[0396] (Configuration example B-48) The member according to any one of configuration examples B-45 to B-47, wherein the diameter of the small diameter portion is 20 mm or more and 30 mm or less.

[0397] (Configuration example B-49) A member according to any one of configuration examples B-45 to B-48, wherein the length of the large diameter portion in a direction parallel to the direction from the first portion to the second portion is 190 mm or more and 220 mm or less.

[0398] (Configuration example B-50) A member according to any one of configuration examples B-45 to B-48, wherein the length of the small diameter portion in a direction parallel to the direction from the first portion to the second portion is 20 mm or more and 30 mm or less.

[0399] (Configuration example B-51) The member according to any one of configuration examples B-1 to B-50, wherein the third portion has a protruding portion that protrudes from the surrounding area.

[0400] (Configuration example B-52) The member according to configuration example B-51, wherein the pad electrode is provided on the protrusion.

[0401] (Configuration example B-53) The member according to configuration example B-51 or B-52, wherein the member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the protrusion portion is provided on the small diameter portion.

[0402] (Configuration example B-54) A component described in any of configuration examples B-51 to B-53, wherein when the protrusion is viewed from the side where the pad electrode is provided, the size of the ceiling surface of the protrusion on which the pad electrode is provided has a maximum length of one side of 9 mm or more and 16 mm or less.

[0403] (Configuration example B-55) The member according to any one of configuration examples B-51 to B-54, wherein the height of the protrusion is 3 mm or more and 10 mm or less.

[0404] (Configuration example B-56) The member according to any one of configuration examples B-51 to B-54, wherein the height of the protrusion is 3 mm or more and 8 mm or less.

[0405] (Configuration example B-57) A component described in any of configuration examples B-51 to B-56, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 5 mm and 10 mm from the first portion.

[0406] (Configuration example B-58) A component described in any of configuration examples B-51 to B-56, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 6 mm and 7 mm from the first portion.

[0407] (Configuration example B-59) A component described in any of configuration examples B-51 to B-58, wherein the protrusion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 20 mm and less than or equal to 25 mm from the first portion.

[0408] (Configuration example B-60) A component described in any of configuration examples B-51 to B-58, wherein the protrusion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 22 mm and less than or equal to 23 mm from the first portion.

[0409] (Configuration example B-61) A component described in any of configuration examples B-51 to B-60, wherein the angle between the side surface of the protrusion and the direction from the first portion to the second portion is greater than or equal to 50 degrees and less than 70 degrees.

[0410] (Configuration example B-62) A component described in any of configuration examples B-51 to B-60, wherein the angle between the side surface of the protrusion and the direction from the first portion to the second portion is 55 degrees or more and 60 degrees or less.

[0411] (Configuration example B-63) The member according to any one of configuration examples B-51 to B-62, wherein a portion of the side surface of the protrusion is convex.

[0412] (Configuration example B-64) The member according to any one of configuration examples B-51 to B-63, wherein a gap is provided below the pad electrode, and the gap is provided in the protruding portion.

[0413] (Configuration example B-65) The member according to configuration example B-64, wherein the gap is open to the protruding portion on the side of the first portion of the member.

[0414] (Configuration example B-66) The member according to any one of configuration examples B-1 to B-65, wherein a gap is provided below the pad electrode.

[0415] (Configuration example B-67) The member according to any one of configuration examples B-64 to B-66, in which a support member of the mounting portion is inserted into the gap.

[0416] (Configuration example B-68) A component described in any of configuration examples B-64 to B-67, wherein when the gap is viewed from the side facing the pad electrode, the portion constituting the outer periphery of the gap has a maximum length of one side of 10 mm or more and 15 mm or less.

[0417] (Configuration example B-69) The member according to any one of configuration examples B-66 to B-68, wherein the height of the gap is 1 mm or more and 5 mm or less.

[0418] (Configuration example B-70) The member according to any one of configuration examples B-66 to B-69, wherein the height of the gap is 2 mm or more and 3 mm or less.

[0419] (Configuration example B-71) The member according to any one of configuration examples B-66 to B-70, in which there is a portion below the pad electrode where the gap is not provided.

[0420] (Configuration example B-72) The member according to any one of Structural Examples B-1 to B-71, having an ID convex portion on the third portion.

[0421] (Configuration example B-73) A component described in configuration example B-72, in which the ID convex portion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion toward the second portion, and is at a position greater than or equal to 40 mm and less than or equal to 50 mm from the first portion.

[0422] (Configuration example B-74) A component described in configuration example B-72, in which the ID convex portion is positioned such that the portion on the first portion side is at a distance parallel to the direction from the first portion toward the second portion, and is positioned at a position greater than or equal to 41 mm and less than or equal to 45 mm from the first portion.

[0423] (Configuration example B-75) A component described in any of configuration examples B-72 to B-74, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion at a position greater than or equal to 50 mm and less than or equal to 60 mm from the first portion.

[0424] (Configuration example B-76) A component described in any of configuration examples B-72 to B-74, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 55 mm and less than 58 mm from the first portion.

[0425] (Configuration example B-77) The member according to any one of configuration examples B-72 to B-76, wherein the height of the ID convex portion is 3 mm or more and 10 mm or less.

[0426] (Configuration example B-78) The member has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the ID protrusion is provided on the large diameter portion.

[0427] (Configuration example B-79) A member described in any of configuration examples B-1 to B-78, wherein each of the multiple pad electrodes has an area arranged in a direction intersecting the direction from the first portion of the pad electrode to the second portion.

[0428] (Configuration example B-80) A component described in configuration example B-79, wherein each of the multiple pad electrodes has a region aligned in a direction inclined by 10 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0429] (Configuration example B-81) A component described in configuration example B-79, wherein each of the multiple pad electrodes has a region aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0430] (Configuration example B-82) The member according to any one of configuration examples A-1 to A-106, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the longitudinal direction of the member.

[0431] (Configuration example B-83) The member according to configuration example B-82, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the longitudinal direction of the member.

[0432] (Configuration example B-84) The member according to configuration example B-82, wherein each of the plurality of pad electrodes has a region aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the longitudinal direction of the member.

[0433] (Configuration example C) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; A component, characterized in that a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is a direction intersecting a moving direction of the pad electrodes.

[0434] (Configuration example D) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; A component characterized in that the direction in which electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is a direction that intersects with the direction from the first portion to the second portion.

[0435] (Configuration example E) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; A component, characterized in that a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is a direction intersecting a longitudinal direction of the component.

[0436] (Configuration example F) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; A member having a screw-shaped groove in the third portion.

[0437] (Configuration example G) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; The member has a large diameter portion having a relatively large diameter, a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and a protruding portion that protrudes from the surrounding area at the third portion, and the multiple pad electrodes are the small diameter portion and are provided on the protruding portion.

[0438] (Configuration example H) a member that is attachable to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, the member comprising, as an outwardly facing portion, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion; A component comprising: a gap provided below the pad electrode.

[0439] (Configuration example I) (Configuration example I-1) A member according to any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, and H, which is cylindrical.

[0440] (Configuration example I-2) A member having a polygonal prism shape according to any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, and H.

[0441] (Configuration example I-3) A member according to any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, and H, which is conical in shape.

[0442] (Configuration example I-4) A member having a polygonal pyramid shape according to any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, and H.

[0443] (Configuration example I-5) A member described in any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, H, and I-1 to I-4, having a two-layer housing having an outer layer and an inner layer.

[0444] (Configuration example I-6) A component described in any of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, H, I-1 to I-5, wherein a portion of the component on the first part side rotates independently of the housing.

[0445] (Configuration example I-7) A member described in any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, H, and I-1 to I-6, having a gripping portion closer to the second portion than the first portion.

[0446] (Configuration example I-8) A member described in any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, H, and I-1 to I-7 that does not store ink.

[0447] (Configuration example I-9) A member according to any one of configuration examples A-1 to A-109, B-1 to B-84, C, D, E, F, G, H, and I-1 to I-8, in which an ink cartridge member having an ink storage section that stores ink is attached.

[0448] (Configuration example I-10) The member according to configuration example I-9, in which an ink cartridge member having an ink storage portion that stores ink is attached via a tube.

[0449] (Configuration example J) (Configuration example J-1) An ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, a first portion having an insertion portion into which the ink receiving tube is inserted, the second portion being opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions, the third portion connecting the first portion and the second portion, the ink cartridge is attached to the mounting portion by being inserted into the mounting portion along an insertion direction in which the first portion is at the front; The ink cartridge according to claim 1, wherein the pad electrodes are electrically connectable to the electrical connection portion by being moved in a direction different from the insertion direction.

[0450] (Configuration example J-2) The ink cartridge according to configuration example J-1, wherein the direction in which the electrical contacts of the plurality of pad electrodes and the electrical connection portion are arranged is a direction intersecting the movement direction of the pad electrodes.

[0451] (Configuration example J-3) An ink cartridge according to configuration example J-2, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 60 degrees or more with respect to the movement direction of the pad electrodes.

[0452] (Configuration example J-4) An ink cartridge according to configuration example J-2, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 70 degrees or more with respect to the movement direction of the pad electrodes.

[0453] (Configuration example J-5) An ink cartridge according to configuration example J-2, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined by 80 degrees or more with respect to the movement direction of the pad electrodes.

[0454] (Configuration example J-6) An ink cartridge according to configuration example J-2, wherein the direction in which the electrical contacts of the plurality of pad electrodes and the electrical connection portion are arranged is perpendicular to the direction in which the pad electrodes move.

[0455] (Configuration example J-7) An ink cartridge described in any of configuration examples J-1 to J-6, in which the electrical contact point of each of the multiple pad electrodes with the electrical connection portion is located at a distance of 5 mm or more and 25 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0456] (Configuration example J-8) An ink cartridge described in any of configuration examples J-1 to J-6, wherein the electrical contact point of each of the multiple pad electrodes with the electrical connection portion is located at a distance of 10 mm or more and 20 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0457] (Configuration example J-9) An ink cartridge described in any of configuration examples J-1 to J-8, wherein, among the electrical contacts of each of the multiple pad electrodes with the electrical connection portion, the electrical contact closest to the first portion is located at a position 5 mm or more and 15 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0458] (Configuration example J-10) An ink cartridge described in any of configuration examples J-1 to J-8, wherein, among the electrical contacts with the electrical connection portion of each of the multiple pad electrodes, the electrical contact closest to the first portion is located at a position 10 mm or more and 11 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0459] (Configuration example J-11) An ink cartridge described in any of configuration examples J-1 to J-10, wherein, among the electrical contacts of each of the multiple pad electrodes with the electrical connection portion, the electrical contact farthest from the first portion is located at a position 15 mm or more and 25 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0460] (Configuration example J-12) An ink cartridge described in any of configuration examples J-1 to J-10, wherein, among the electrical contacts of each of the multiple pad electrodes with the electrical connection portion, the electrical contact farthest from the first portion is located at a position 17 mm or more and 18 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0461] (Configuration example J-13) An ink cartridge described in any of configuration examples J-1 to J-12, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is a direction that intersects with the direction from the first portion to the second portion.

[0462] (Configuration example J-14) An ink cartridge described in configuration example J-13, in which the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined by 20 degrees or more and 40 degrees or less with respect to the direction from the first portion to the second portion.

[0463] (Configuration example J-15) An ink cartridge described in configuration example J-13, in which the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the direction from the first portion to the second portion.

[0464] (Configuration example J-16) An ink cartridge described in any of configuration examples J-1 to J-15, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is a direction that intersects with the longitudinal direction of the ink cartridge.

[0465] (Configuration example J-17) An ink cartridge described in configuration example J-16, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at 20 degrees or more and 40 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0466] (Configuration example J-18) An ink cartridge described in configuration example J-16, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at 30 degrees or more and 35 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0467] (Configuration example J-19) An ink cartridge according to any one of configuration examples J-1 to J-18, wherein a direction in which electrical contacts of the plurality of pad electrodes with the electrical connection portion are arranged intersects with the insertion direction.

[0468] (Configuration example J-20) An ink cartridge according to configuration example J-19, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the insertion direction.

[0469] (Configuration example J-21) An ink cartridge according to configuration example J-19, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the insertion direction.

[0470] (Configuration example J-22) The ink cartridge according to any one of configuration examples J-1 to J-21, wherein the point where the pad electrode and the electrical connection portion of the recording device come into contact with each other is an electrical contact point.

[0471] (Configuration example J-23) An ink cartridge according to any one of configuration examples J-1 to J-22, wherein the electrical contact points of all of the pad electrodes with the electrical connection portion coincide with the center of gravity of the pad electrodes.

[0472] (Configuration example J-24) An ink cartridge described in any of configuration examples J-1 to J-22, wherein the multiple pad electrodes have pad electrodes whose electrical contact with the electrical connection portion coincides with the center of gravity of the pad electrodes and pad electrodes whose electrical contact with the electrical connection portion does not coincide with the center of gravity of the pad electrodes.

[0473] (Configuration example J-25) An ink cartridge according to any one of configuration examples J-1 to J-24, wherein the plurality of pad electrodes have pad electrodes whose length from the electrical contact with the electrical connection portion is 0.5 mm or more and 4.0 mm or less.

[0474] (Configuration example J-26) The ink cartridge according to any one of configuration examples J-1 to J-25, wherein the third portion has a guide portion for rotating the ink cartridge.

[0475] (Configuration example J-27) The ink cartridge according to configuration example J-26, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes and the electrical connection portion are arranged is a direction intersecting the extending direction of the guide portion.

[0476] (Configuration example J-28) The ink cartridge according to configuration example J-27, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 60 degrees or more with respect to the extending direction of the guide portion.

[0477] (Configuration example J-29) The ink cartridge according to configuration example J-27, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 70 degrees or more with respect to the extending direction of the guide portion.

[0478] (Configuration example J-30) The ink cartridge according to configuration example J-27, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is inclined at 75 degrees or more with respect to the extending direction of the guide portion.

[0479] (Configuration example J-31) An ink cartridge described in any of configuration examples J-26 to J-30, wherein the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is inclined at an angle of 85 degrees or less with respect to the extension direction of the guide portion.

[0480] (Configuration example J-32) The ink cartridge according to any one of configuration examples J-26 to J-31, wherein the guide portion is a groove.

[0481] (Configuration example J-33) The ink cartridge according to configuration example J-32, wherein the groove is a screw-shaped groove.

[0482] (Configuration example J-34) The ink cartridge according to configuration example J-32 or J-33, wherein the depth of the guide portion is 1.0 mm or more and 5.0 mm or less.

[0483] (Configuration example J-35) The ink cartridge according to configuration example J-32 or J-33, wherein the depth of the guide portion is 2.0 mm or more and 4.0 mm or less.

[0484] (Configuration example J-36) The ink cartridge according to any one of configuration examples J-32 to J-35, wherein a rib is disposed inside the guide portion.

[0485] (Configuration example J-37) The ink cartridge according to configuration example J-36, wherein the height of the rib is 1.5 mm or more and 2.0 mm or less.

[0486] (Configuration example J-38) The ink cartridge according to configuration example J-36 or J-37, wherein the height of the rib is shorter than the depth of the guide portion.

[0487] (Configuration example J-39) The ink cartridge according to any one of configuration examples J-32 to J-38, wherein a lock pin of the mounting portion is inserted into the guide portion, thereby rotatably guiding the ink cartridge.

[0488] (Configuration example J-40) The ink cartridge according to any one of configuration examples J-26 to J-39, wherein the guide portion extends in a direction intersecting a direction from the first portion toward the second portion.

[0489] (Configuration example J-41) The ink cartridge according to configuration example J-40, wherein the extending direction of the guide portion is inclined at an angle of 50 degrees or more and 80 degrees or less with respect to the direction from the first portion to the second portion.

[0490] (Configuration example J-42) The ink cartridge according to configuration example J-40, wherein the extending direction of the guide portion is inclined at an angle of 60 degrees or more and 70 degrees or less with respect to the direction from the first portion to the second portion.

[0491] (Configuration example J-43) An ink cartridge described in any of configuration examples J-26 to J-42, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the guide portion is provided on the large diameter portion.

[0492] (Configuration example J-44) The ink cartridge according to any one of configuration examples J-26 to J-43, wherein the ink cartridge has a second guide portion different from the guide portion at a position facing the guide portion.

[0493] (Configuration example J-45) An ink cartridge according to any one of configuration examples J-26 to J-44, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting the extension direction of the guide portion.

[0494] (Configuration example J-46) The ink cartridge according to configuration example J-45, wherein each of the plurality of pad electrodes has an area inclined at an angle of 60 degrees or more with respect to the extending direction of the guide portion.

[0495] (Configuration example J-47) The ink cartridge according to configuration example J-45, wherein each of the plurality of pad electrodes has an area inclined at an angle of 70 degrees or more with respect to the extending direction of the guide portion.

[0496] (Configuration example J-48) The ink cartridge according to configuration example J-45, wherein each of the plurality of pad electrodes has an area inclined at an angle of 75 degrees or more with respect to the extending direction of the guide portion.

[0497] (Configuration example J-49) An ink cartridge according to any one of configuration examples J-45 to J-48, wherein each of the plurality of pad electrodes has a region in which the pad electrodes are aligned at an angle of 85 degrees or less with respect to the extension direction of the guide portion.

[0498] (Configuration example J-50) An ink cartridge described in any of configuration examples J-1 to J-49, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than the large diameter portion, and the multiple pad electrodes are provided on the small diameter portion.

[0499] (Configuration example J-51) An ink cartridge described in configuration example J-50, wherein the first portion is provided in the small diameter portion, the second portion is provided in the large diameter portion, and the third portion is provided across the large diameter portion and the small diameter portion.

[0500] (Configuration example J-52) The ink cartridge according to configuration example J-50 or J-51, wherein the diameter of the large diameter portion is 50 mm or more and 80 mm or less.

[0501] (Configuration example J-53) The ink cartridge according to any one of configuration examples J-50 to J-52, wherein the diameter of the small diameter portion is 20 mm or more and 30 mm or less.

[0502] (Configuration example J-54) An ink cartridge according to any one of configuration examples J-50 to J-53, wherein the length of the large diameter portion in a direction parallel to the direction from the first portion to the second portion is 190 mm or more and 220 mm or less.

[0503] (Configuration example J-55) An ink cartridge according to any one of configuration examples J-50 to J-54, wherein the length of the small diameter portion in a direction parallel to the direction from the first portion to the second portion is 20 mm or more and 30 mm or less.

[0504] (Configuration example J-56) The ink cartridge according to any one of configuration examples J-1 to J-55, wherein the third portion has a protruding portion that protrudes from the surrounding area.

[0505] (Configuration example J-57) The ink cartridge according to configuration example J-56, wherein the pad electrode is provided on the protrusion.

[0506] (Configuration example J-58) An ink cartridge according to configuration example J-56 or J-57, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the protrusion portion is provided on the small diameter portion.

[0507] (Configuration example J-59) An ink cartridge described in any of configuration examples J-56 to J-58, wherein when the protrusion is viewed from the side where the pad electrode is provided, the size of the ceiling surface of the protrusion on which the pad electrode is provided has a maximum length of one side of 9 mm or more and 16 mm or less.

[0508] (Configuration example J-60) The ink cartridge according to any one of configuration examples J-56 to J-59, wherein the height of the protrusion is 3 mm or more and 10 mm or less.

[0509] (Configuration example J-61) The ink cartridge according to any one of configuration examples J-56 to J-59, wherein the height of the protrusion is 3 mm or more and 8 mm or less.

[0510] (Configuration example J-62) An ink cartridge described in any of configuration examples J-56 to J-61, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 5 mm and 10 mm from the first portion.

[0511] (Configuration example J-63) An ink cartridge described in any of configuration examples J-56 to J-61, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 6 mm and 7 mm from the first portion.

[0512] (Configuration example J-64) An ink cartridge described in any of configuration examples J-56 to J-63, wherein the protrusion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 20 mm and less than or equal to 25 mm from the first portion.

[0513] (Configuration example J-65) An ink cartridge described in any of configuration examples J-56 to J-63, wherein the protrusion is positioned at a distance in a direction parallel to the direction from the first portion to the second portion, and the portion on the second portion side is positioned at a position greater than or equal to 22 mm and less than or equal to 23 mm from the first portion.

[0514] (Configuration example J-66) An ink cartridge described in any of configuration examples J-56 to J-65, wherein the mounting portion has a positioning wall, and by rotating the ink cartridge while contacting the protrusion with the positioning wall, the multiple pad electrodes move in a direction different from the insertion direction.

[0515] (Configuration example J-67) An ink cartridge described in any of configuration examples J-56 to J-66, wherein the angle between the side of the protrusion and the direction from the first part to the second part is greater than 50 degrees and less than 70 degrees.

[0516] (Configuration example J-68) An ink cartridge described in any of configuration examples J-56 to J-66, wherein the angle between the side of the protrusion and the direction from the first part to the second part is 55 degrees or more and 60 degrees or less.

[0517] (Configuration example J-69) The ink cartridge according to any one of configuration examples J-56 to J-68, wherein a portion of the side surface of the protrusion is convex.

[0518] (Configuration example J-70) The ink cartridge according to any one of configuration examples J-56 to J-69, wherein a gap is provided below the pad electrode, the gap being provided in the protruding portion.

[0519] (Configuration example J-71) The ink cartridge according to configuration example J-70, wherein the gap is open to the side of the protruding portion that faces the first portion of the ink cartridge.

[0520] (Configuration example J-72) The ink cartridge according to any one of configuration examples J-1 to J-69, wherein a gap is provided below the pad electrode.

[0521] (Configuration example J-73) The ink cartridge according to any one of configuration examples J-70 to J-72, wherein a support member of the mounting portion is inserted into the gap.

[0522] (Configuration example J-74) An ink cartridge described in any of configuration examples J-70 to J-73, wherein when the gap is viewed from the side facing the pad electrode, the portion constituting the outer periphery of the gap has a maximum length of one side of 10 mm or more and 15 mm or less.

[0523] (Configuration example J-75) The ink cartridge according to any one of configuration examples J-70 to J-74, wherein the height of the gap is 1 mm or more and 5 mm or less.

[0524] (Configuration example J-76) The ink cartridge according to any one of configuration examples J-70 to J-74, wherein the height of the gap is 2 mm or more and 3 mm or less.

[0525] (Configuration example J-77) An ink cartridge according to any one of configuration examples J-70 to J-76, wherein there is a portion below the pad electrode where no gap is provided.

[0526] (Configuration example J-78) The ink cartridge according to any one of configuration examples J-1 to J-77, which has an ID convex portion on the third portion.

[0527] (Configuration example J-79) An ink cartridge as described in configuration example J-78, wherein the ID convex portion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion toward the second portion, and is at a position between 40 mm and 50 mm from the first portion.

[0528] (Configuration example J-80) An ink cartridge as described in configuration example J-78, wherein the ID convex portion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 41 mm and 45 mm from the first portion.

[0529] (Configuration example J-81) An ink cartridge described in any of configuration examples J-78 to J-80, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 50 mm and less than 60 mm from the first portion.

[0530] (Configuration example J-82) An ink cartridge described in any of configuration examples J-78 to J-80, wherein the ID convex portion is arranged such that the portion on the second portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than 55 mm and less than 58 mm from the first portion.

[0531] (Configuration example J-83) The ink cartridge according to any one of configuration examples J-78 to J-82, wherein the height of the ID convex portion is 3 mm or more and 10 mm or less.

[0532] (Configuration example J-84) The ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the ID convex portion is provided on the large diameter portion.

[0533] (Configuration example J-85) An ink cartridge described in any of configuration examples J-1 to J-84, wherein the ink cartridge rotates about an axis along the insertion direction, causing the multiple pad electrodes to move in a direction different from the insertion direction.

[0534] (Configuration example J-86) An ink cartridge described in any of configuration examples J-1 to J-84, wherein the ink cartridge rotates around the central axis of the ink cartridge as a rotation axis, causing the multiple pad electrodes to move in a direction different from the insertion direction.

[0535] (Configuration example J-87) An ink cartridge described in any of configuration examples J-1 to J-84, wherein the ink cartridge rotates around the ink receiving tube as a rotation axis, causing the multiple pad electrodes to move in a direction different from the insertion direction.

[0536] (Configuration example J-88) The ink cartridge according to any one of configuration examples J-85 to J-87, wherein the rotation is a screw rotation that rotates in a screw-like manner.

[0537] (Configuration example J-89) The ink cartridge according to any one of configuration examples J-85 to J-88, wherein, during the rotation, the ink cartridge rotates while being inserted in the insertion direction.

[0538] (Configuration example J-90) The ink cartridge according to any one of configuration examples J-85 to J-89, wherein the angle by which the ink cartridge rotates before the ink receiving tube is inserted into the insertion portion is 10 degrees or more and 40 degrees or less.

[0539] (Configuration example J-91) The ink cartridge according to any one of configuration examples J-85 to J-89, wherein the angle by which the ink cartridge rotates before the ink receiving tube is inserted into the insertion portion is 20 degrees or more and 25 degrees or less.

[0540] (Configuration example J-92) An ink cartridge described in any of configuration examples J-85 to J-91, wherein after insertion in the insertion direction, the angle by which the ink cartridge rotates is 40 degrees or more and 75 degrees or less before the multiple pad electrodes begin to be inserted between two opposing positioning walls sandwiching the multiple electrical connection portions of the mounting portion.

[0541] (Configuration example J-93) An ink cartridge described in any of configuration examples J-85 to J-91, wherein after insertion in the insertion direction, the angle by which the ink cartridge rotates is 55 degrees or more and 65 degrees or less before the multiple pad electrodes begin to be inserted between two opposing positioning walls sandwiching the multiple electrical connection portions of the mounting portion.

[0542] (Configuration example J-94) An ink cartridge described in any of configuration examples J-85 to J-93, wherein after insertion in the insertion direction, the angle by which the ink cartridge rotates is 80 degrees or more and 90 degrees or less until the multiple pad electrodes begin to contact the multiple electrical connection portions.

[0543] (Configuration example J-95) An ink cartridge described in any of configuration examples J-85 to J-93, wherein after insertion in the insertion direction, the angle by which the ink cartridge rotates is 80 degrees or more and 88 degrees or less until the multiple pad electrodes begin to contact the multiple electrical connection portions.

[0544] (Configuration example J-96) An ink cartridge according to any one of configuration examples J-1 to J-95, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting the moving direction of the pad electrode.

[0545] (Configuration example J-97) The ink cartridge according to configuration example J-96, wherein each of the plurality of pad electrodes has an area aligned at an angle of 60 degrees or more with respect to the moving direction of the pad electrode.

[0546] (Configuration example J-98) The ink cartridge according to configuration example J-96, wherein each of the plurality of pad electrodes has an area aligned at an angle of 70 degrees or more with respect to the moving direction of the pad electrode.

[0547] (Configuration example J-99) The ink cartridge according to configuration example J-96, wherein each of the plurality of pad electrodes has an area aligned at an angle of 80 degrees or more with respect to the moving direction of the pad electrode.

[0548] (Configuration example J-100) The ink cartridge according to configuration example J-96, wherein each of the plurality of pad electrodes has an area aligned in a direction perpendicular to the moving direction of the pad electrode.

[0549] (Configuration example J-101) An ink cartridge described in any of configuration examples J-1 to J-100, wherein each of the multiple pad electrodes has an area arranged in a direction intersecting the direction from the first portion to the second portion of the pad electrode.

[0550] (Configuration example J-102) An ink cartridge described in configuration example J-101, wherein each of the multiple pad electrodes has an area aligned in a direction inclined by 10 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0551] (Configuration example J-103) An ink cartridge described in configuration example J-101, wherein each of the multiple pad electrodes has an area aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0552] (Configuration example J-104) An ink cartridge according to any one of configuration examples J-1 to J-103, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the insertion direction of the ink cartridge.

[0553] (Configuration example J-105) An ink cartridge according to configuration example J-104, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the insertion direction of the ink cartridge.

[0554] (Configuration example J-106) An ink cartridge according to configuration example J-104, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the insertion direction of the ink cartridge.

[0555] (Configuration example J-107) An ink cartridge according to any one of configuration examples J-1 to J-106, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the longitudinal direction of the ink cartridge.

[0556] (Configuration example J-108) An ink cartridge according to configuration example J-107, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0557] (Configuration example J-109) An ink cartridge according to configuration example J-107, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0558] (Configuration example K) (Configuration example K-1) An ink cartridge having a plurality of pad electrodes, a first portion, a second portion opposite to the first portion, and a third portion having a plurality of pad electrodes and connecting the first portion and the second portion, the third portion being a portion facing outward from the ink cartridge; an ink cartridge comprising: a guide portion in the third portion, the guide portion extending in a direction intersecting a direction from the first portion toward the second portion;

[0559] (Configuration example K-2) An ink cartridge described in configuration example K-1, in which the electrical contact of each of the multiple pad electrodes is positioned at a position between 5 mm and 25 mm from the first portion, at a distance parallel to the direction from the first portion to the second portion.

[0560] (Configuration example K-3) An ink cartridge described in configuration example K-1, in which the electrical contact of each of the multiple pad electrodes is positioned at a position between 10 mm and 20 mm from the first portion, at a distance parallel to the direction from the first portion to the second portion.

[0561] (Configuration example K-4) An ink cartridge described in any of configuration examples K-1 to K-3, wherein, among the electrical contacts of each of the multiple pad electrodes, the electrical contact closest to the first portion is located at a position between 5 mm and 15 mm from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0562] (Configuration example K-5) An ink cartridge described in any of configuration examples K-1 to K-3, wherein, among the electrical contacts of each pad electrode in the multiple pad electrodes, the electrical contact closest to the first portion is located at a position 10 mm or more and 11 mm or less from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0563] (Configuration example K-6) An ink cartridge described in any of configuration examples K-1 to K-5, wherein, among the electrical contacts of each pad electrode in the multiple pad electrodes, the electrical contact farthest from the first portion is located at a position greater than 15 mm and less than 25 mm from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0564] (Configuration example K-7) An ink cartridge described in any of configuration examples K-1 to K-5, wherein, among the electrical contacts of each of the multiple pad electrodes, the electrical contact farthest from the first portion is located at a position greater than 17 mm and less than 18 mm from the first portion in a direction parallel to the direction from the first portion to the second portion.

[0565] (Configuration example K-8) An ink cartridge described in any of configuration examples K-1 to K-7, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is a direction that intersects with the direction from the first portion to the second portion.

[0566] (Configuration example K-9) An ink cartridge described in configuration example K-8, in which the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the direction from the first portion to the second portion.

[0567] (Configuration example K-10) An ink cartridge described in configuration example K-8, in which the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the direction from the first portion to the second portion.

[0568] (Configuration example K-11) An ink cartridge according to any one of configuration examples K-1 to K-10, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is a direction that intersects with the longitudinal direction of the ink cartridge.

[0569] (Configuration example K-12) An ink cartridge according to configuration example K-11, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0570] (Configuration example K-13) An ink cartridge according to configuration example K-11, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0571] (Configuration example K-14) An ink cartridge according to any one of configuration examples K-1 to K-13, wherein a direction in which electrical contacts of each of the plurality of pad electrodes are arranged intersects with the insertion direction.

[0572] (Configuration example K-15) An ink cartridge according to configuration example K-14, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the insertion direction.

[0573] (Configuration example K-16) An ink cartridge according to configuration example K-14, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 30 degrees or more and 35 degrees or less with respect to the insertion direction.

[0574] (Configuration example K-17) The ink cartridge according to any one of configuration examples K-1 to K-16, wherein the point where the pad electrode and the electrical connection portion of the recording device come into contact is an electrical contact point.

[0575] (Configuration example K-18) An ink cartridge according to any one of configuration examples K-1 to K-17, wherein the electrical contacts of all of the plurality of pad electrodes coincide with the center of gravity of the pad electrodes.

[0576] (Configuration example K-19) An ink cartridge described in any of configuration examples K-1 to K-18, wherein the multiple pad electrodes have pad electrodes whose electrical contacts coincide with the center of gravity of the pad electrodes and pad electrodes whose electrical contacts do not coincide with the center of gravity of the pad electrodes.

[0577] (Configuration example K-20) An ink cartridge according to any one of configuration examples K-1 to K-19, wherein the plurality of pad electrodes have pad electrodes whose length from the electrical contact is 0.5 mm or more and 4.0 mm or less.

[0578] (Configuration example K-21) The ink cartridge according to any one of configuration examples K-1 to K-20, wherein the guide portion is a guide portion for rotating the ink cartridge.

[0579] (Configuration example K-22) An ink cartridge according to any one of configuration examples K-1 to K-21, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is a direction that intersects with the extending direction of the guide portion.

[0580] (Configuration example K-23) An ink cartridge according to configuration example K-22, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at 60 degrees or more with respect to the extending direction of the guide portion.

[0581] (Configuration example K-24) An ink cartridge according to configuration example K-22, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at 70 degrees or more with respect to the extending direction of the guide portion.

[0582] (Configuration example K-25) An ink cartridge according to configuration example K-22, wherein the direction in which the electrical contacts of each of the plurality of pad electrodes are arranged is inclined at 75 degrees or more with respect to the extending direction of the guide portion.

[0583] (Configuration example K-26) An ink cartridge according to any one of configuration examples K-22 to K-25, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 85 degrees or less with respect to the extension direction of the guide portion.

[0584] (Configuration example K-27) The ink cartridge according to any one of configuration examples K-1 to K-26, wherein the guide portion is a groove.

[0585] (Configuration example K-28) The ink cartridge according to configuration example K-27, wherein the groove is a screw-shaped groove.

[0586] (Configuration example K-29) The ink cartridge according to configuration example K-27 or K-28, wherein the depth of the guide portion is 1.0 mm or more and 5.0 mm or less.

[0587] (Configuration example K-30) The ink cartridge according to configuration example K-27 or K-28, wherein the depth of the guide portion is 2.0 mm or more and 4.0 mm or less.

[0588] (Configuration example K-31) The ink cartridge according to any one of configuration examples K-27 to K-30, wherein a rib is disposed inside the guide portion.

[0589] (Configuration example K-32) The ink cartridge according to configuration example K-31, wherein the height of the rib is 1.5 mm or more and 2.0 mm or less.

[0590] (Configuration example K-33) The ink cartridge according to configuration example K-31 or K-32, wherein the height of the rib is shorter than the depth of the guide portion.

[0591] (Configuration example K-34) An ink cartridge described in any of configuration examples K-31 to K-33, wherein the rib is positioned such that the center of gravity of the rib is 40 mm or more and 50 mm or less from the first portion at a distance parallel to the direction from the first portion to the second portion.

[0592] (Configuration example K-35) The ink cartridge according to any one of configuration examples K-1 to K-34, wherein the guide portion extends in a direction intersecting a direction from the first portion toward the second portion.

[0593] (Configuration example K-36) The ink cartridge according to configuration example K-35, wherein the extending direction of the guide portion is inclined at an angle of 50 degrees or more and 80 degrees or less with respect to the direction from the first portion to the second portion.

[0594] (Configuration example K-37) The ink cartridge according to configuration example K-35, wherein the extending direction of the guide portion is inclined at an angle of 60 degrees or more and 70 degrees or less with respect to the direction from the first portion to the second portion.

[0595] (Configuration example K-38) An ink cartridge described in any of configuration examples K-1 to K-37, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the guide portion is provided in the large diameter portion.

[0596] (Configuration example K-39) The ink cartridge according to any one of configuration examples K-1 to K-38, wherein the ink cartridge has a second guide portion different from the guide portion at a position facing the guide portion.

[0597] (Configuration example K-40) An ink cartridge according to any one of configuration examples K-1 to K-39, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting the extension direction of the guide portion.

[0598] (Configuration example K-41) An ink cartridge according to configuration example K-40, wherein each of the plurality of pad electrodes has an area inclined at an angle of 60 degrees or more with respect to the extension direction of the guide portion.

[0599] (Configuration example K-42) An ink cartridge according to configuration example K-40, wherein each of the plurality of pad electrodes has an area inclined at an angle of 70 degrees or more with respect to the extension direction of the guide portion.

[0600] (Configuration example K-43) An ink cartridge according to configuration example K-40, wherein each of the plurality of pad electrodes has an area inclined at an angle of 75 degrees or more with respect to the extension direction of the guide portion.

[0601] (Configuration example K-44) An ink cartridge according to any one of configuration examples K-40 to K-43, wherein each of the plurality of pad electrodes has a region aligned at an angle of 85 degrees or less with respect to the extension direction of the guide portion.

[0602] (Configuration example K-45) An ink cartridge described in any of configuration examples K-1 to K-44, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than the large diameter portion, and the multiple pad electrodes are provided on the small diameter portion.

[0603] (Configuration example K-46) An ink cartridge described in configuration example K-45, wherein the first portion is provided in the small diameter portion, the second portion is provided in the large diameter portion, and the third portion is provided across the large diameter portion and the small diameter portion.

[0604] (Configuration example K-47) The ink cartridge according to configuration example K-45 or K-46, wherein the diameter of the large diameter portion is 50 mm or more and 80 mm or less.

[0605] (Configuration example K-48) The ink cartridge according to any one of configuration examples K-45 to K-47, wherein the diameter of the small diameter portion is 20 mm or more and 30 mm or less.

[0606] (Configuration example K-49) An ink cartridge according to any one of configuration examples K-45 to K-48, wherein the length of the large diameter portion in a direction parallel to the direction from the first portion to the second portion is 190 mm or more and 220 mm or less.

[0607] (Configuration example K-50) An ink cartridge according to any one of configuration examples K-45 to K-48, wherein the length of the small diameter portion in a direction parallel to the direction from the first portion to the second portion is 20 mm or more and 30 mm or less.

[0608] (Configuration example K-51) The ink cartridge according to any one of configuration examples K-1 to K-50, wherein the third portion has a protruding portion that protrudes from the surrounding area.

[0609] (Configuration example K-52) The ink cartridge according to configuration example K-51, wherein the pad electrode is provided on the protrusion.

[0610] (Configuration example K-53) An ink cartridge described in configuration example K-51 or K-52, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the protrusion portion is provided on the small diameter portion.

[0611] (Configuration example K-54) An ink cartridge described in any of configuration examples K-51 to K-53, wherein, when the protrusion is viewed from the side where the pad electrode is provided, the size of the ceiling surface of the protrusion on which the pad electrode is provided has a maximum length of one side of 9 mm or more and 16 mm or less.

[0612] (Configuration example K-55) The ink cartridge according to any one of configuration examples K-51 to K-54, wherein the height of the protrusion is 3 mm or more and 10 mm or less.

[0613] (Configuration example K-56) The ink cartridge according to any one of configuration examples K-51 to K-54, wherein the height of the protrusion is 3 mm or more and 8 mm or less.

[0614] (Configuration example K-57) An ink cartridge described in any of configuration examples K-51 to K-56, wherein the protrusion is arranged at a distance in a direction parallel to the direction from the first portion to the second portion, and the portion on the first portion side is positioned at a position greater than 5 mm and less than 10 mm from the first portion.

[0615] (Configuration example K-58) An ink cartridge described in any of configuration examples K-51 to K-56, wherein the protrusion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position between 6 mm and 7 mm from the first portion.

[0616] (Configuration example K-59) An ink cartridge described in any of configuration examples K-51 to K-58, wherein the protrusion is positioned at a distance in a direction parallel to the direction from the first portion to the second portion, and the portion on the second portion side is positioned at a position greater than 20 mm and less than 25 mm from the first portion.

[0617] (Configuration example K-60) An ink cartridge described in any of configuration examples K-51 to K-58, wherein the protrusion is positioned at a distance in a direction parallel to the direction from the first portion to the second portion, and the portion on the second portion side is positioned at a position greater than 22 mm and less than 23 mm from the first portion.

[0618] (Configuration example K-61) An ink cartridge described in any of configuration examples K-51 to K-60, wherein the angle between the side of the protrusion and the direction from the first portion to the second portion is greater than 50 degrees and less than 70 degrees.

[0619] (Configuration example K-62) An ink cartridge described in any of configuration examples K-51 to K-60, wherein the angle between the side of the protrusion and the direction from the first part to the second part is 55 degrees or more and 60 degrees or less.

[0620] (Configuration example K-63) The ink cartridge according to any one of configuration examples K-51 to K-62, wherein a portion of the side surface of the protrusion is convex.

[0621] (Configuration example K-64) An ink cartridge according to any one of configuration examples K-51 to K-63, wherein a gap is provided below the pad electrode, the gap being provided in the protruding portion.

[0622] (Configuration example K-65) The ink cartridge according to configuration example K-64, wherein the gap is an opening of the protruding portion on the side of the first portion of the ink cartridge.

[0623] (Configuration example K-66) The ink cartridge according to any one of configuration examples K-1 to K-65, wherein a gap is provided below the pad electrode.

[0624] (Configuration example K-67) The ink cartridge according to any one of configuration examples K-64 to K-66, wherein a support member of the mounting portion is inserted into the gap.

[0625] (Configuration example K-68) An ink cartridge described in any of configuration examples K-64 to K-67, wherein when the gap is viewed from the side facing the pad electrode, the portion constituting the outer periphery of the gap has a maximum length of one side of 10 mm or more and 15 mm or less.

[0626] (Configuration example K-69) The ink cartridge according to any one of configuration examples K-66 to K-68, wherein the height of the gap is 1 mm or more and 5 mm or less.

[0627] (Configuration example K-70) The ink cartridge according to any one of configuration examples K-66 to K-69, wherein the height of the gap is 2 mm or more and 3 mm or less.

[0628] (Configuration example K-71) An ink cartridge according to any one of configuration examples K-66 to K-70, in which there is a portion below the pad electrode where no gap is provided.

[0629] (Configuration example K-72) The ink cartridge according to any one of configuration examples K-1 to K-71, which has an ID convex portion on the third portion.

[0630] (Configuration example K-73) An ink cartridge described in configuration example K-72, wherein the ID convex portion is arranged such that the portion on the first portion side is positioned at a distance parallel to the direction from the first portion to the second portion, and is at a position greater than or equal to 40 mm and less than 50 mm from the first portion.

[0631] (Configuration example K-74) An ink cartridge as described in configuration example K-72, wherein the ID convex portion is positioned such that the portion on the first portion side is at a distance parallel to the direction from the first portion toward the second portion, and is positioned at a position between 41 mm and 45 mm from the first portion.

[0632] (Configuration example K-75) An ink cartridge described in any of configuration examples K-72 to K-74, wherein the ID convex portion is positioned at a distance in a direction parallel to the direction from the first portion to the second portion, with the portion on the second portion side positioned at a position greater than 50 mm and less than 60 mm from the first portion.

[0633] (Configuration example K-76) An ink cartridge described in any of configuration examples K-72 to K-74, wherein the ID convex portion is positioned at a distance in a direction parallel to the direction from the first portion to the second portion, with the portion on the second portion side positioned at a position greater than 55 mm and less than 58 mm from the first portion.

[0634] (Configuration example K-77) The ink cartridge according to any one of configuration examples K-72 to K-76, wherein the height of the ID convex portion is 3 mm or more and 10 mm or less.

[0635] (Configuration example K-78) Ink cartridges according to configuration examples K-72 to K-77, wherein the ink cartridge has a large diameter portion having a relatively large diameter and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, and the ID convex portion is provided on the large diameter portion.

[0636] (Configuration example K-79) An ink cartridge described in any of configuration examples K-1 to K-78, wherein each of the multiple pad electrodes has an area arranged in a direction intersecting the direction from the first portion of the pad electrode to the second portion.

[0637] (Configuration example K-80) An ink cartridge described in configuration example K-79, wherein each of the multiple pad electrodes has an area aligned in a direction inclined by 10 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0638] (Configuration example K-81) An ink cartridge described in configuration example K-79, wherein each of the multiple pad electrodes has an area aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the direction from the first portion to the second portion of the pad electrode.

[0639] (Configuration example K-82) An ink cartridge according to any one of configuration examples J-1 to J-106, wherein each of the plurality of pad electrodes has an area aligned in a direction intersecting with the longitudinal direction of the ink cartridge.

[0640] (Configuration example K-83) An ink cartridge according to configuration example K-82, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 10 degrees or more and 60 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0641] (Configuration example K-84) An ink cartridge according to configuration example K-82, wherein each of the plurality of pad electrodes has an area aligned in a direction inclined at an angle of 40 degrees or more and 60 degrees or less with respect to the longitudinal direction of the ink cartridge.

[0642] (Configuration example L) An ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, a first portion having an insertion portion into which the ink receiving tube is inserted, the second portion being opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions, the third portion connecting the first portion and the second portion, an electrical contact portion for connecting the electrical contacts of the pad electrodes to the electrical connection portion of the pad electrodes is arranged in a direction intersecting a moving direction of the pad electrodes;

[0643] (Configuration example M) An ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, a first portion having an insertion portion into which the ink receiving tube is inserted, the second portion being opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions, the third portion connecting the first portion and the second portion, An ink cartridge characterized in that the direction in which the electrical contacts of each of the multiple pad electrodes with the electrical connection portion are arranged is a direction that intersects with the direction from the first portion to the second portion.

[0644] (Configuration Example N) An ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, a first portion having an insertion portion into which the ink receiving tube is inserted, the second portion being opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions, the third portion connecting the first portion and the second portion, An ink cartridge characterized in that a direction in which electrical contacts of each of the plurality of pad electrodes with the electrical connection portion are arranged is a direction intersecting a longitudinal direction of the ink cartridge.

[0645] (Configuration example O) An ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions, a first portion having an insertion portion into which the ink receiving tube is inserted, the second portion being opposite to the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions, the third portion connecting the first portion and the second p...

Claims

1. A cylindrical ink cartridge that can be attached to a mounting portion having an ink receiving tube and a plurality of electrical connection portions and that contains ink, a first portion having an insertion portion into which the ink receiving tube is inserted, as a portion facing outward from the ink cartridge, a second portion opposite the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions at electrical contacts, and connecting the first portion and the second portion; the third portion has a large diameter portion having a relatively large diameter and a small diameter portion having a relatively smaller diameter than the large diameter portion, and the plurality of pad electrodes are provided on the small diameter portion; An ink cartridge characterized in that the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the direction from the first portion to the second portion.

2. An ink cartridge as described in Claim 1, wherein the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined by 30 degrees or more and 35 degrees or less with respect to the direction from the first portion to the second portion.

3. 3. The ink cartridge according to claim 1, wherein the ink cartridge has a protruding portion protruding from the surrounding area at the small diameter portion of the third portion, and the pad electrode is provided on the protruding portion.

4. A component as described in claim 3, wherein a gap is provided below the pad electrode of the protrusion.

5. A cylindrical ink cartridge that can be attached to a mounting part having an ink receiving tube and a plurality of electrical connection parts and that stores ink, a first portion having an insertion portion into which the ink receiving tube is inserted, a second portion opposite the first portion, and a third portion having a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions and connecting the first portion and the second portion, the third portion has a large diameter portion having a relatively large diameter and a small diameter portion having a relatively smaller diameter than the large diameter portion, and the plurality of pad electrodes are provided on the small diameter portion; an ink cartridge including a guide portion for rotating the ink cartridge, the guide portion being provided on the large diameter portion of the third portion;

6. The ink cartridge according to claim 5, wherein the guide portion is a groove.

7. 7. An ink cartridge according to claim 6, wherein the groove is a screw-shaped groove.

8. A cylindrical ink cartridge that can be attached to a mounting part having an ink receiving tube and a plurality of electrical connection parts and that stores ink, the ink cartridge has a first surface having an insertion portion into which the ink receiving tube is inserted, a second surface opposite to the first surface, and a cylindrical portion connecting the first surface and the second surface, The cylindrical portion has a large diameter portion and a small diameter portion having a diameter relatively smaller than that of the large diameter portion, a plurality of pad electrodes electrically connectable to the plurality of electrical connection portions at electrical contacts are provided on the small diameter portion of the cylindrical portion; An ink cartridge characterized in that the direction in which the electrical contacts of each of the multiple pad electrodes are arranged is inclined at an angle of 20 degrees or more and 40 degrees or less with respect to the direction from the first surface to the second surface.

Images