Recording device

Abstract

To provide a technology which is advantageous for improvement of robustness of a recording device.SOLUTION: A recording device according to the invention includes: a recording section for making records on a sheet; a lower frame forming a part of the housing which houses the recording section and forming at least a part of a transport passage for the sheet; an upper frame supported by the lower frame and forming another part of the housing; and a unit attached onto the lower frame and supporting the upper frame with the lower frame. The unit has a positioning part for positioning relative to the lower frame. The positioning part includes an engagement part configured to engage with the lower frame and extends to an area below an engaged part of the lower frame which is engaged with the engagement part.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention mainly relates to a housing structure of a recording device. [Background technology]

[0002] A recording device, such as an inkjet printer, is generally constructed by attaching / assembling elements for realizing a recording function to a frame that forms a housing (see Patent Document 1). Typical examples of elements include a power source, a power transmission mechanism, and a transport mechanism. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-10888 Summary of the Invention [Problem to be solved by the invention]

[0004] The weight of the above-mentioned elements that can be attached to the frame of the recording device is generally relatively large, and this may cause distortion of the frame, which may result in a decrease in the recording accuracy of the recording device. In response to this, there is a general demand for technology that improves the robustness of the device while responding to the increasing complexity of the device structure that comes with the recent increase in the number of functions of recording devices.

[0005] The present invention was made in response to the inventor's recognition of the above-mentioned problems, and has an exemplary object to provide a technique that is advantageous for improving the robustness of recording devices. [Means for solving the problem]

[0006] One aspect of the present invention relates to a recording device, the recording device comprising: a recording unit for recording on a sheet; a lower frame that constitutes a part of a housing that houses the recording unit and forms at least a part of a conveyance path for the sheet; an upper frame supported by the lower frame and constituting another part of the housing; a unit mounted on the lower frame and supporting the upper frame together with the lower frame; A recording device comprising: The unit has a positioning portion for positioning with respect to the lower frame, the positioning portion including an engaging portion that engages with the lower frame and extending downward from an engaged portion of the lower frame that is engaged with the engaging portion. It is characterized by: [Effects of the Invention]

[0007] According to the present invention, it is possible to appropriately improve the robustness of a recording device. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a recording apparatus according to an embodiment. [Figure 2] FIG. 1 is a perspective view showing an example of the internal structure of a recording apparatus. [Figure 3] FIG. 2 is a perspective view showing an example of a frame configuration. [Figure 4] FIG. 2 is a perspective view showing the rear side of an example of the internal structure of a recording apparatus. [Figure 5] FIG. 10 is a perspective view showing an example of an attachment mode of the waste liquid tank housing portion. [Figure 6] FIG. 10 is a simplified schematic diagram showing an example of an installation mode of the waste liquid tank housing portion. [Figure 7] FIG. 1 is a schematic diagram showing an example of the configuration of a recording apparatus. [Figure 8] FIG. 4 is a schematic cross-sectional view showing another side of the recording apparatus. [Figure 9] FIG. 2 is an enlarged view of a portion of the recording device. [Figure 10] FIG. [Figure 11] FIG. 2 is an enlarged view of a portion of the recording device. [Figure 12] FIG. 2 is an enlarged perspective view of a partial area of ​​the recording apparatus. [Figure 13]FIG. [Figure 14] FIG. 3 is a schematic diagram showing the structure of the upper frame. [Figure 15] FIG. 2 is a schematic diagram illustrating the arrangement of elements included in the recording apparatus. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the claimed invention. Although multiple features are described in the embodiments, not all of these multiple features are necessarily essential to the invention, and multiple features may be combined arbitrarily. Furthermore, in the accompanying drawings, the same reference numerals are used to designate the same or similar components, and redundant explanations will be omitted.

[0010] First Embodiment <Overall configuration of the recording device> Fig. 1 is a perspective view showing the appearance of a recording apparatus M according to a first embodiment. Fig. 2 is a perspective view showing part of the internal structure of the recording apparatus M. The recording apparatus M includes a paper feed unit 1, an image reading unit 2, a conveyance unit 3, a recording unit 4, a maintenance unit 5, a frame 7, a paper discharge unit 8, and a waste liquid tank housing unit 9. To facilitate explanation of the structure, the drawings show X, Y, and Z directions that intersect (substantially perpendicular to) each other. The X direction corresponds to the left-right or width direction, the Y direction corresponds to the front-back or depth direction, and the Z direction corresponds to the up-down or height direction.

[0011] Although details will be described later, the frame 7 is formed by connecting or coupling a lower frame (base material) 71 and an upper frame 76 to each other (see FIGS. 3(a) and 3(b)). An exterior cover 110 is attached to the frame 7 from the outside. The housing of the recording device M is formed by the frame 7 and the exterior cover 110. Individual elements that become movable parts during the recording operation of the recording device M are mainly supported by the frame 7 so as to be rotatable or slidable.

[0012] The paper feed unit 1 includes a pressure plate 11 and a paper feed roller 12. Sheets (typically paper materials such as cut sheets or other recording media) are placed in the paper feed unit 1, and if there are two or more sheets, the two or more sheets can be stacked in the paper feed unit 1. The sheets are taken into the housing (inside the device main body) one by one while being pressed against the pressure plate 11 by the paper feed roller 12 and supplied. The paper feed unit 1 also includes a stacking tray, which is rotatable relative to the frame 7 so that it can be folded and stored in the housing when not in use.

[0013] The conveying section 3 includes a conveying roller 32 , a pinch roller 33 , a paper discharge roller 34 and a pressure roller 35 . The conveying roller 32 is a drive roller that rotates based on power from a power source (not shown) such as an electric motor. The pinch roller 33 is a driven roller that is disposed so as to abut against the conveying roller 32. The conveying roller 32 conveys the supplied sheet toward the recording unit 4, which will be described later, while pinching the sheet together with the pinch roller 33. The discharge roller 34 is a drive roller that rotates based on power from a power source (not shown), and further transports a sheet that has been recorded by the recording unit 4 (described later), and discharges it to the discharge unit 8. The pressure roller 35 is a driven roller that restricts the recorded sheet to the discharge roller 34 side, and its rolling surface has an uneven shape so as to reduce the contact area with the sheet.

[0014] The paper discharge unit 8 includes a paper discharge tray 81 and a sub-tray 82. The paper discharge tray 81 is placed with printed sheets discharged by the paper discharge rollers 34. The sub-tray 82 is an extension tray that can be pulled out from the paper discharge tray 81, and can be pulled out according to the sheet size, for example.

[0015] The recording unit 4 includes a carriage 41, a recording head 42, and a carriage motor 43. Additionally, the recording unit 4 further includes a chassis 44 and rails 46 (which may not be provided as part of the recording unit 4). The recording head 42 has a configuration capable of recording by inkjet recording, that is, it performs recording on a sheet by individually ejecting ink from multiple nozzles. The chassis 44 is a plate member fixed to the frame 7 and extending in the X direction, and the rails 46 are attached to this chassis 44 (see FIG. 3(b)). The carriage 41 carries the recording head 42 and moves back and forth in the X direction along the rails 46 based on the power of a carriage motor 43. The recording head 42 scans in the X direction by the reciprocating movement of the carriage 41, and performs recording during that time. Incidentally, the term "recording" as used herein refers to forming an image on a sheet, and the concept of an image includes characters, numbers, symbols, figures, photographs, etc., as well as spaces that may be formed between them.

[0016] Recording on the sheet is performed by alternating between intermittent conveyance, in which the conveyance roller 32 (and incidentally the paper discharge roller 34) conveys the sheet by a predetermined amount and suppresses the conveyance, and scan recording, in which the recording head 42 scans in the X direction and performs recording while the conveyance is suppressed. Such a recording head 42 is also referred to as a serial head. In another embodiment, the recording head 42 may be a line head extending across the entire width of the sheet.

[0017] The maintenance unit 5 includes a suction cap 51 and a suction pump 52. The maintenance unit 5 is disposed at the end of the movable area of ​​the recording head 42. The suction cap 51 caps the ink ejection surface (nozzle surface on which a plurality of nozzles are arranged) of the recording head 42, and the suction pump 52 sucks air bubbles, thickened ink, etc. from each nozzle of the capped recording head 42.

[0018] The sucked ink is sent as waste liquid (waste ink) to and stored in a waste liquid tank (waste liquid storage section) 91 (described later) contained in the waste liquid tank storage section 9 (see FIG. 4). The waste liquid tank storage section 9 detachably stores the waste liquid tank 91, and although details will be described later, the waste liquid tank 91 is replaceable.

[0019] The image reading unit 2 includes an FBS (flatbed scanner) 21 and an ADF (automatic document feeder) 22, and is capable of realizing an image reading function. For example, the FBS 21 and the ADF 22 are rotatably attached to the device body and can be rotatably supported on an upper frame 76. In this configuration, the FBS 21 can read an image from a target (typically a booklet) placed on the top surface of the device body or sandwiched between the FBS 21 and the top surface of the device body, and acquire the image data. The AFD 22 can also sequentially capture targets (typically one or more documents) for image reading placed thereon, and the FBS 21 can read images from the captured targets. In this way, the recording device M is a copier that has a recording function by the recording unit 4 as its main function, and also has an image reading function by the image reading unit 2 as an auxiliary function. The auxiliary function may be omitted, or other auxiliary functions such as a facsimile function may be added.

[0020] An operation panel 23 is also provided on the front of the housing of the recording device M. A touch panel display can typically be used for the operation panel 23. This allows the operation panel 23 to accept operation inputs from the user and also to display or notify the user of information necessary for executing the above-mentioned recording and image reading.

[0021] 3(a) and 3(b) are perspective views for explaining the configuration of the frame 7. Fig. 3(a) shows the lower frame 71 and the upper frame 76 connected to each other, and Fig. 3(b) shows them disassembled. 3(b), the lower frame 71 forms at least a part of a sheet conveying path 710 on its upper surface. Furthermore, the lower frame 71 forms a wall 711 on one side of the conveying path 710, and also forms a wall 712 on the other side of the conveying path 710. The chassis 44 described above is positioned by the walls 711 and 712, and can be fixed to the walls 711 and 712 by, for example, fastening. Such a lower frame 71 can be integrally molded from resin.

[0022] The waste liquid tank housing 9 is a separate unit from the lower frame 71 and the upper frame 76, and although details will be described later, it is attached to the wall 712 from the opposite side to the transport path 710. In this embodiment, the housing of the recording apparatus M has a rectangular shape when viewed from above, and the waste liquid tank housing 9 is located at one of the four corners.

[0023] 3(b), the lower frame 71 and the upper frame 76 are connected to each other with the upper frame 76 supported by the lower frame 71 and with the waste liquid tank housing 9 disposed between the frames 71 and 76. The chassis 44, with the rails 46 attached, is disposed between the frames 71 and 76 and fixed to the lower frame 71. Additionally, the chassis 44 may be engaged with the upper frame 76.

[0024] FIG. 4 is a perspective view showing the rear side of the internal structure of the recording apparatus M. As shown in FIG. 4, the waste liquid tank housing section 9 can house a replaceable waste liquid tank 91. The waste liquid tank 91 stores ink sucked by the maintenance section 5 as waste ink / waste liquid. For example, when the amount of waste liquid stored in the waste liquid tank 91 reaches a reference amount, a predetermined display or notification can be output on the operation panel 23. In response to this, the user can remove the waste liquid tank 91 from the waste liquid tank housing section 9 and then insert and install a new / different waste liquid tank 91 into the waste liquid tank housing section 9. The waste liquid tank storage section 9 only needs to be framed to form a space for storing the waste liquid tank 91, and may be simply referred to as a storage section.

[0025] <Layout of elements included in the recording device> 15 is a schematic diagram (a layout diagram inside the housing) for explaining the arrangement of each of the above-mentioned elements included in the recording device M. The diagram shows a top view layout diagram of the recording device M, a left side layout diagram, and a right side layout diagram, as well as a left side cross-sectional schematic diagram corresponding to the left side layout diagram.

[0026] The figure shows supply ink tanks 95a and 95b, and supply ink tank plugs 96a and 96b. In this embodiment, the recording apparatus M is capable of color printing using multiple types of ink, and the supply ink tank 95a and supply ink tank plug 96a correspond to, for example, black ink. The supply ink tank 95b and supply ink tank plug 96b correspond to other color inks, such as yellow, magenta, and cyan.

[0027] Also shown in the figure are a power supply unit 121, an NCU (Network Control Unit) 122, a transport guide 131, and an inner guide 132. The power supply unit 121 generates power based on an external power supply to supply to each element. The NCU 122 controls communication with the outside. Furthermore, the conveying guide 131 guides the conveyance of the sheet. The inner guide 132 includes the conveying roller 32, and the rotation of the conveying roller 32 assists the guiding of the conveying guide 131, thereby conveying the sheet toward the platen 36. In this embodiment, as shown in the left side cross-sectional view of FIG. 15 , the sheet passes from the platen 36 through the conveying path 710 and is conveyed again toward the platen 36 by the conveying guide 131. Note that in this embodiment, the platen 36 is fixed at a height Zp that is substantially the same as that of the conveying path 710, but may be fixed at a different height.

[0028] Also shown in the figure is a main board 140. The main board 140 is equipped with a plurality of semiconductor components for performing arithmetic processing for controlling the driving of the recording device M. Examples of such components include a CPU (Central Processing Unit), RAM (Random Access Memory), and ROM (Read Only Memory).

[0029] 15, the waste liquid tank housing section 9 is located at one of the four corners, and in this embodiment, it is located on the opposite side of the housing from the power supply unit 121 and NCU 122. A transport guide 131 and an inner guide 132 are disposed between them, i.e., the waste liquid tank housing section 9 is located on one side of the transport guide 131 and inner guide 132, and the power supply unit 121 and NCU 122 are located on the other side.

[0030] In this embodiment, the waste liquid tank housing section 9 is wider than the power supply unit 121 and the NCU 122. The supply ink tank 95b is also wider than the supply ink tank 95a. Therefore, it is advisable to arrange the waste liquid tank housing section 9, the power supply unit 121, the NCU 122, and the supply ink tanks 95a and 95b taking their widths into consideration. Therefore, in this embodiment, the power supply unit 121 and the NCU 122 are arranged so as to overlap with the supply ink tank 95a in the Y direction. Also, the waste liquid tank housing portion 9 is arranged so as to overlap with the supply ink tank 95b. According to this arrangement, it is possible to ensure the area WR for conveying the sheet in the central portion.

[0031] <Installation of waste tank storage unit> Figures 5(a1) to 5(c2) are perspective views showing how the waste liquid tank housing part is attached. Figures 6(a) to 6(c) are schematic diagrams for explaining in a simplified manner how the waste liquid tank housing part 9 is attached.

[0032] Fig. 5(a1) shows the rear side of the lower frame 71 before the upper frame 76, the waste liquid tank housing 9, and the exterior cover 110 are attached. Fig. 5(a2) shows Fig. 5(a1) viewed from below (the bottom side). Fig. 6(a) corresponds to the state shown in Figs. 5(a1) to 5(a2).

[0033] Fig. 5(b1) shows the rear side of the lower frame 71 after the upper frame 76 and the waste liquid tank housing 9 have been attached and before the exterior cover 110 has been attached. Fig. 5(b2) shows Fig. 5(b1) as viewed from below. Fig. 6(b) corresponds to the state shown in Figs. 5(b1) to 5(b2).

[0034] Fig. 5(c1) shows the rear side of the lower frame 71 after the upper frame 76, the waste liquid tank housing 9, and the exterior cover 110 have been attached. Fig. 5(c2) shows Fig. 5(c1) viewed from below. Fig. 6(c) corresponds to the state shown in Figs. 5(c1) to 5(c2).

[0035] 5(a2), a notch 713 extending in the X direction is provided in the lower frame 71. In addition, on both sides of the notch 713, recessed slot surfaces 7131 extending in the X direction are provided.

[0036] 5(b2), the waste liquid tank accommodating unit 9 has a positioning portion 92 for positioning it with respect to the lower frame 71. As shown mainly in FIG. 6(b), the positioning portion 92 extends downward from the main body of the waste liquid tank accommodating unit 9 in a substantially columnar shape. In this embodiment, the columnar positioning portion 92 is configured as a positioning boss that can fix the waste liquid tank accommodating unit 9 to the lower frame 71 by fastening to the wall portion 712. In another embodiment, fastening to the positioning portion 92 may be performed in addition to or instead of fastening to the wall portion 712.

[0037] 5(b2) and 6(b), the positioning portion 92 includes an engaging portion 93 that can engage with the lower frame 71. Here, the portion of the lower frame 71 that is engaged by the engaging portion 93 is referred to as an engaged portion 715. When the waste liquid tank accommodating portion 9 is attached to the lower frame 71, the engaging portion 93 extends along the underside of the engaged portion 715, thereby sandwiching the engaged portion 715 together with the waste liquid tank accommodating portion 9 main body. In this state, the engaging portion 93 is configured so that, for example, an end or edge abuts against the elongated hole surface 7131 in the Z direction and engages.

[0038] Furthermore, as shown mainly in Fig. 6(b), the column-shaped positioning portion 92 extends downward from the engaged portion 715. The waste liquid tank accommodating portion 9 is attached by inserting the positioning portion 92 while sliding it relative to the notch portion 713. In other words, the notch portion 713 can be said to allow the waste liquid tank accommodating portion 9 to be attached to the lower frame 71 from the side. As shown mainly in Fig. 5(a2), the notch portion 713 is formed in the engaged portion 715, and therefore it may be said that the engaged portion 715 includes the notch portion 713.

[0039] The above-mentioned attachment of the waste liquid tank accommodating portion 9 is completed by engaging the engaging portion 93 with the elongated hole surface 7131 with the waste liquid tank accommodating portion 9 body abutting against the wall portion 712 .

[0040] When the upper frame 76 is further attached, as shown primarily in FIG. 6( b), the waste liquid tank accommodating portion 9 supports the upper frame 76 together with the lower frame 71. As described above, the waste liquid tank accommodating portion 9 is attached at an appropriate position relative to the lower frame 71 by the positioning portion 92. Because the positioning portion 92 extends downward from the main body of the waste liquid tank accommodating portion 9 in a substantially columnar shape, a user can easily grasp the positioning portion 92 and visually confirm its position when attaching the waste liquid tank accommodating portion 9. Therefore, according to this embodiment, in this structure in which the waste liquid tank accommodating portion 9 is disposed between the frames 71 and 76, it is relatively easy for the waste liquid tank accommodating portion 9 to assist the lower frame 71 in supporting the upper frame 76 at an appropriate position. Accordingly, a support means that may be provided on the lower frame 71 to support the upper frame 76 can be omitted, which means the structure of the lower frame 71 can be simplified. Therefore, according to this embodiment, the load of the upper frame 76 can be appropriately transmitted to the lower frame 71 while maintaining the strength of the lower frame 71, thereby improving the robustness of the recording device M. Furthermore, according to this embodiment, stress that may have been generated in the lower frame 71 is suppressed, and therefore the recording accuracy of the recording device M can also be improved.

[0041] The positioning portion 92 may be extended to the ground surface 714 of the lower frame 71. In this case, the load of the upper frame 76 and the waste liquid tank housing portion 9 can be transmitted to the mounting surface G of the recording apparatus M by the positioning portion 92.

[0042] 5(c2) and 6(c), an exterior cover 110 is further attached. The exterior cover 110 has an opening at its lower portion, which is illustrated as an opening 111. When the exterior cover 110 is further attached, the exterior cover 110 covers the frames 71 and 76 that are connected to each other, and exposes the positioning portion 92 through the opening 111. With this configuration, the positioning portion 92 can be used when attaching the exterior cover 110 to the lower frame 71, which is also advantageous for aligning the exterior cover 110. Furthermore, it is possible to omit connecting means that may be required to connect the lower frame 71 and the exterior cover 110, which means that the structures of these can be simplified. Furthermore, even after the exterior cover 110 is attached, the positioning portion 92 can be seen through the opening 111, and its position can be regulated by the opening 111.

[0043] <Summary> According to this embodiment, the waste liquid tank housing 9 functions as an auxiliary support part that supports the upper frame 76 together with the lower frame 71. A positioning part 92 for positioning the waste liquid tank housing 9 relative to the lower frame 71 engages with an engaged part 715 of the lower frame 71 by an engaging part 93. The engaging part 93 extends along the underside of the engaged part 715. The positioning part 92 extends downward from the engaged part 715, which makes positioning relatively easy by gripping and visual confirmation. With this structure, it is possible to use the waste liquid tank housing portion 9 attached to the lower frame 71 to assist in supporting the upper frame 76 at an appropriate position. As a result, it is possible to omit the support means that may have been provided on the lower frame 71 to support the upper frame 76, simplifying the structure of the lower frame 71 and thereby improving the robustness of the recording device M with a relatively simple configuration. Furthermore, with this structure, it is possible to suppress stress that may have occurred in the lower frame 71, which is also advantageous for improving the recording accuracy of the recording device M.

[0044] Furthermore, in this embodiment in which the housing of the recording device M has a rectangular shape when viewed from above, the waste liquid tank storage section 9 is located at one of the four corners where the load can generally be large, thereby enabling it to function more appropriately as a support auxiliary section.

[0045] In this embodiment, the engaged portion 715 of the lower frame 71 includes a notch 713 formed so that the waste liquid tank accommodating portion 9 can be attached from the side. The waste liquid tank accommodating portion 9 can be attached to the wall portion 712 from the side opposite the transport path 710, and the notch 713 enables the attachment of the waste liquid tank accommodating portion 9 by sliding. The waste liquid tank accommodating portion 9 attached to the lower frame 71 in this manner is fixed to the lower frame 71 by fastening with the positioning portion 92.

[0046] In this embodiment, the waste liquid tank housing unit 9 is exemplified as an auxiliary support unit that assists in supporting the upper frame 76, but that function may be realized by another unit that constitutes part of the recording apparatus M. In other words, any unit provided in the recording apparatus M may also function as an auxiliary support unit, which makes it possible to improve the robustness of the recording apparatus M in a variety of structures.

[0047] Second Embodiment 7 is a schematic diagram showing an example of the configuration of a recording apparatus M according to the second embodiment. In this embodiment, the recording apparatus M further includes a hinge 79 that pivotally supports the FBS 21 and the ADF 22, and a support pillar 77 that extends in the Z direction below the hinge 79.

[0048] As described above, the FBS 21 and the ADF 22 can be attached to the device body so that they can rotate. Therefore, when the FBS 21 and the ADF 22 are open (when the FBS 21 and the ADF 22 are rotated away from the device body), the load is concentrated on the points where the FBS 21 and the ADF 22 are pivotally supported.

[0049] Therefore, in this embodiment, hinges 79 are installed on the upper frame 76, and support pillars 77 are positioned so as to overlap with the hinges 79 in the Z direction. In other words, the support pillars 77 only need to be positioned below the portions where the FBS 21 and ADF 22 are pivotally supported. The support pillars 77 are independent of the lower frame 71, and can, for example, extend downward without being connected to the lower frame 71. As an example, the support pillars 77 pass through the lower frame 71, as shown by the dashed lines in FIG. 7. With this configuration, the support pillar 77 can appropriately transmit the load that may be concentrated on the hinge 79 when the FBS 21 and ADF 22 are open to the mounting surface G of the recording device M, without applying unnecessary stress to the upper frame 76 and lower frame 71.

[0050] Other aspects of the structure of the recording device Fig. 8 is a schematic side view showing the internal structure of the recording apparatus M. Fig. 9 is an enlarged schematic view of an area K1 in Fig. 8. The recording apparatus M further includes a supply ink tank 95 that stores ink to be supplied to the recording head 42. Here, the supply ink tank 95 is assumed to be installed on the front / near side of the carriage 41 that carries the recording head 42. The upper frame 76 extends horizontally above the carriage 41 and the supply ink tank 95 so as to cover at least a portion of them. FIG. 12 is a perspective view of the area K1 of the recording device M.

[0051] A lever 97 is attached to the upper frame 76 so that it can swing. A supply ink tank plug 96 is attached to the tip of the lever 97, which closes the supply port of the supply ink tank 95. By operating this lever 97, the user can open the supply port of the supply ink tank 95 and supply ink to the supply ink tank 95.

[0052] 10(a) to 10(c) are perspective views showing the upper frame 76 in region K1 as viewed from below. As shown in Fig. 10(a), the upper frame 76 may have an opening 76b formed as a through-hole around the shaft 76a to ensure an area in which, for example, the lever 97 can swing. A sheet member 98 is attached to close the lower part of this opening 76b. Fig. 10(a) shows the state before the sheet member 98 is attached, Fig. 10(b) shows the state while the sheet member 98 is being attached, and Fig. 10(c) shows the state after the sheet member 98 has been attached. FIG. 14 is a schematic diagram showing only the upper frame 76 as viewed from below.

[0053] A pair of protrusions 98a and 98b is provided on the end of the sheet member 98. A pair of holes 76c and 76d is provided on the side surface of the upper frame 76. By placing the sheet member 98 on the sheet mounting surface 76e of the upper frame 76 while inserting the protrusions 98a and 98b into the holes 76c and 76d, respectively, as shown by the arrows in Figure 10(b), the lower part of the opening hole 76b can be blocked with the sheet member 98. FIG. 13 is a perspective view showing the positional relationship between the upper frame 76 and the sheet member 98. As shown in FIG.

[0054] Figure 11 is a cross-sectional view of area K2 shown in Figure 10(c) taken along the line d1-d1. The sheet member 98 can be attached adjacent to the side wall below hole 76d of the upper frame 76. Hole 76d is sealed on the outside by a side cover 99 that is part of the exterior cover 110. Note that while Figure 11 is a cross-sectional view passing through hole 76d, the same applies to a cross-sectional view passing through hole 76c.

[0055] According to this structure, the opening hole 76b provided in the upper frame 76 to ensure an area in which the lever 97 can swing is covered with the sheet member 98, thereby appropriately preventing foreign matter from adhering to the lever 97. At the same time, it is possible to provide the lever 97 to be swingable while maintaining the robustness of the upper frame 76, which not only provides the same effects as the above-described embodiment but also makes it possible to realize a recording device M with high usability with a relatively simple configuration.

[0056] <Other> The term "recording" as used in this specification should be interpreted broadly. Therefore, the form of "recording" does not matter whether the object formed on the recording medium is significant information such as characters or figures, or whether it is visible to humans or not.

[0057] Furthermore, the term "recording medium" should be interpreted broadly, just like the above-mentioned "recording." Therefore, the concept of "recording medium" includes not only commonly available paper, but also any material that can accept ink, such as cloth, plastic film, metal plate, glass, ceramics, resin, wood, leather, etc.

[0058] Furthermore, "ink" should be interpreted broadly, just like the above-mentioned "recording." Therefore, the concept of "ink" includes not only a liquid that forms an image, design, pattern, etc. by being applied to a recording medium, but also ancillary liquids that can be used for processing the recording medium, treating the ink (for example, solidifying or insolubilizing the coloring material in the ink applied to the recording medium), etc. For example, the recording device M may be referred to as a liquid ejection device or simply as an ejection device. Similarly, the recording head 42 may be referred to as a liquid ejection head or simply as an ejection head.

[0059] Furthermore, in the embodiments, individual elements are named based on their main functions, but the functions described in the embodiments may be sub-functions and are not strictly limited to these expressions. Furthermore, these expressions can be replaced with other similar expressions. For the same purpose, the expression "unit" can be replaced with "tool," "component," "member," "structure," "assembly," etc. Alternatively, these terms may be omitted or added.

[0060] Furthermore, two or more selectable elements exemplified in the embodiments are not strictly limited to the examples and may be arbitrarily combined, for example, each of the two or more selectable elements may be additionally or alternatively selected. For example, when two elements A and B are arbitrarily combined, they may be expressed as "A and / or B" or "at least one of A and B" to indicate either A only, B only, or both A and B.

[0061] Summary of the embodiment Some features exemplified in the embodiments are as follows: [1] a recording unit for recording on a sheet; a lower frame that constitutes a part of a housing that houses the recording unit and forms at least a part of a conveyance path for the sheet; an upper frame supported by the lower frame and constituting another part of the housing; a unit mounted on the lower frame and supporting the upper frame together with the lower frame; A recording device comprising: The unit has a positioning portion for positioning with respect to the lower frame, the positioning portion including an engaging portion that engages with the lower frame and extending downward from an engaged portion of the lower frame that is engaged with the engaging portion. A recording device characterized by: [2] The engaging portion extends along the lower surface of the engaged portion of the lower frame. The recording device according to [1]. [3] The engaged portion of the lower frame includes a notch formed so that the unit can be attached from the side. The recording device according to [1] or [2], [4] The positioning portion is configured to be able to fix the unit to the lower frame by fastening. The recording device according to any one of [1] to [3], characterized in that: [5] a wall portion is provided on an upper surface of the lower frame and on a side of the transport path; The unit is attached to the wall portion from the opposite side to the conveying path. The recording device according to any one of [1] to [4], characterized in that: [6] The housing has a rectangular shape when viewed from above, and the unit is located at one of the four corners. The recording device according to any one of [1] to [5], characterized in that: [7] the recording unit is configured to perform the recording by ejecting a liquid, The unit is a container that replaceably houses a waste liquid reservoir that stores waste liquid. The recording device according to any one of [1] to [6], characterized in that: [8] The lower frame is integrally molded from resin. The recording device according to any one of [1] to [7], characterized in that: [9] Further provided with an exterior cover, the lower frame and the upper frame are connected to each other with the unit mounted therebetween, The exterior cover covers the lower frame and the upper frame connected to each other and has an opening to expose the positioning portion. The recording device according to any one of [1] to [8], characterized in that:

[10] an image reading unit rotatably supported on the upper frame; a support column that supports the upper frame below a portion of the upper frame that pivotally supports the image reading unit, the support column being provided independently from the lower frame. The recording device according to any one of [1] to [9], characterized in that:

[11] The upper frame has an opening portion which is a through hole around the shaft portion, and a sheet member is attached to close the lower portion of the opening portion. The recording device according to any one of [1] to

[10] , characterized in that:

[12] a protrusion is provided on an end of the sheet member, and a hole into which the protrusion of the sheet member can be inserted is provided on a side surface of the upper frame, The hole is sealed on the outside by an exterior cover. The recording device according to

[11] .

[0062] The invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention. [Explanation of symbols]

[0063] M: recording device, 42: recording head, 71: Lower frame, 715: Engaged portion, 76: Upper frame, 9: Waste liquid tank storage section, 92: Positioning section, 93: Engagement section.

Claims

1. a recording unit for recording on a sheet; a lower frame that constitutes a part of a housing that houses the recording unit and forms at least a part of a conveyance path for the sheet; an upper frame supported by the lower frame and constituting another part of the housing; a unit mounted on the lower frame and supporting the upper frame together with the lower frame; A recording device comprising: The unit has a positioning portion for positioning with respect to the lower frame, the positioning portion including an engaging portion that engages with the lower frame and extending downward from an engaged portion of the lower frame that is engaged with the engaging portion. A recording device characterized by:

2. The engaging portion extends along the lower surface of the engaged portion of the lower frame.

2. The recording apparatus according to claim 1.

3. The engaged portion of the lower frame includes a notch formed so that the unit can be attached from the side.

2. The recording apparatus according to claim 1.

4. The positioning portion is configured to be able to fix the unit to the lower frame by fastening.

2. The recording apparatus according to claim 1.

5. a wall portion is provided on an upper surface of the lower frame and on a side of the transport path; The unit is attached to the wall portion from the opposite side to the conveying path.

2. The recording apparatus according to claim 1.

6. The housing has a rectangular shape when viewed from above, and the unit is located at one of the four corners.

2. The recording apparatus according to claim 1.

7. the recording unit is configured to perform the recording by ejecting a liquid, The unit is a container that replaceably houses a waste liquid reservoir that stores waste liquid.

2. The recording apparatus according to claim 1.

8. The lower frame is integrally molded from resin.

2. The recording apparatus according to claim 1.

9. Further provided with an exterior cover, the lower frame and the upper frame are connected to each other with the unit mounted therebetween, The exterior cover covers the lower frame and the upper frame connected to each other and has an opening to expose the positioning portion.

2. The recording apparatus according to claim 1.

10. an image reading unit rotatably supported on the upper frame; a support column that supports the upper frame below a portion of the upper frame that pivotally supports the image reading unit, the support column being provided independently from the lower frame.

2. The recording apparatus according to claim 1.

11. The upper frame has an opening portion which is a through hole around the shaft portion, and a sheet member is attached to close the lower portion of the opening portion.

2. The recording apparatus according to claim 1.

12. a protrusion is provided on an end of the sheet member, and a hole into which the protrusion of the sheet member can be inserted is provided on a side surface of the upper frame, The hole is sealed on the outside by an exterior cover.

12. The recording apparatus according to claim 11.

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