Recording device

Abstract

To suppress size increase of a recording device having a conveyance guide member which is attachable to / detachable from a device body.SOLUTION: In a recording device comprising a guide member for guiding conveyance of a record sheet and an adjacent unit provided adjacent to the guide member in a sheet width direction crossing a conveyance direction, the guide member has a first boss projecting from a first end near the adjacent unit in the sheet width direction, and a second boss projecting from a second end on a side opposite to the first end. A device body of the recording device has a first support part having a first boss hole into which the first boss is inserted, and a second support part having a second boss hole into which the second boss is inserted. The guide member can be attached to / detached / from the device body by inserting / removing the first boss into / from the first boss hole and inserting / removing the second boss into / from the second boss hole, an area where the record sheet passes and an area where the first boss extends overlap with each other at least partially in the sheet width direction.SELECTED DRAWING: Figure 7(c)

Description

[Technical Field]

[0001] The present invention relates to a recording apparatus for recording an image on a recording sheet. [Background technology]

[0002] Some recording devices, such as inkjet printers, that record images on recording sheets have a curved portion that is curved in an arc (U-shape) in the transport path of the recording sheet. Patent Document 1 describes a configuration in which a transport guide member that constitutes a transport path having such a curved portion is detachable from the main body of the recording device when clearing a jam, etc. In the recording device of Patent Document 1, a user can insert or remove the transport guide member horizontally from the rear side of the main body of the device by holding handles that protrude horizontally from both sides in the width direction of the transport guide member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-182264 Summary of the Invention [Problem to be solved by the invention]

[0004] In a recording device having a transport guide member that is detachable from the device body, the transport guide member is provided with a boss for positioning the transport guide member relative to the device body, and the device body is provided with a boss hole into which the boss is inserted. This positioning boss is provided so as to protrude from the transport guide member in a direction intersecting the transport direction. The device body may be provided with a unit (hereinafter referred to as an adjacent unit) that is arranged adjacent to the position where the transport guide member is attached. An example of an adjacent unit is a power supply unit. When attaching or detaching the transport guide member to or from the device body, a gap must be provided between the transport guide member and the adjacent unit so that the boss that passes through the boss hole does not come into contact with the adjacent unit. A boss of a certain length is necessary to ensure stable positioning and reliable attachment and detachment of the transport guide member, but as the boss becomes longer, the gap that must be maintained between the adjacent unit and the boss becomes larger, which creates a problem of increasing the overall size of the recording device.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to prevent an increase in size of a recording apparatus having a transport guide member that is detachable from the main body of the apparatus. [Means for solving the problem]

[0006] The present invention comprises: a conveying means for conveying a recording sheet in a conveying direction; a guide member for guiding the conveyance of the recording sheet by the conveyance means; a recording head for recording on the recording sheet conveyed by the conveying means; an adjacent unit provided adjacent to the guide member in a sheet width direction intersecting the conveying direction; In a recording device comprising: The guide member is a first boss protruding in a first direction outward in the seat width direction from a first end portion that is an end portion closer to the adjacent unit in the seat width direction; a second boss protruding from a second end portion opposite to the first end portion in the seat width direction in a second direction opposite to the first direction in the seat width direction; and The main body of the recording device is a first support portion having a first boss hole into which the first boss is inserted; a second support portion having a second boss hole into which the second boss is inserted; and the guide member is detachable from the device body by inserting and removing the first boss into the first boss hole and inserting and removing the second boss into the second boss hole, In the recording device, an area through which the recording sheet passes and an area through which the first boss extends are at least partially overlapped in the sheet width direction. [Effects of the Invention]

[0007] According to the present invention, in a recording apparatus having a transport guide member that is detachable from the main body of the apparatus, it is possible to prevent the recording apparatus from becoming large in size. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a recording apparatus. [Figure 2] FIG. 2 is a block diagram showing a control system of the recording apparatus. [Figure 3] FIG. 2 is a cross-sectional view of a conveying path for a recording sheet. [Figure 4(a)] FIG. 3 is a diagram showing the path of a recording sheet when being conveyed. [Figure 4(b)] FIG. 3 is a diagram showing the path of a recording sheet when being conveyed. [Figure 4(c)] FIG. 3 is a diagram showing the path of a recording sheet when being conveyed. [Figure 4(d)] FIG. 3 is a diagram showing the path of a recording sheet when being conveyed. [Figure 5(a)] 10A and 10B are diagrams illustrating the positional relationship between a base, a transport guide member, and a power source. [Figure 5(b)] 10 is a perspective view illustrating a method for attaching and detaching the base and the transport guide. FIG. [Figure 6] FIG. 2 is a perspective view illustrating an outline of a base and a boss hole. [Figure 7(a)] FIG. [Figure 7(b)]FIG. [Figure 7(c)] FIG. [Figure 8(a)] 4 is a cross-sectional view showing the positional relationship between a transport guide member and a power supply unit. FIG. [Figure 8(b)] 4 is a cross-sectional view showing the positional relationship between a transport guide member and a power supply unit. FIG. [Figure 8(c)] 4 is a cross-sectional view showing the positional relationship between a transport guide member and a power supply unit. FIG. [Figure 9] 5A and 5B are schematic diagrams illustrating the positional relationship between a transport guide member and a power supply unit according to the embodiment. [Figure 10] 10 is a schematic diagram showing the positional relationship between a transport guide member and a power supply unit in Comparative Example 1. FIG. [Figure 11] 10 is a schematic diagram showing the positional relationship between a transport guide member and a power supply unit in Comparative Example 2. FIG. [Figure 12(a)] FIG. 4 is a cross-sectional view showing the power supply unit and the left side cover. [Figure 12(b)] FIG. 2 is a schematic diagram showing the power supply unit and the left side cover. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, exemplary embodiments for carrying out the present invention will be described with reference to the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described in the following examples may be changed as appropriate depending on the configuration of the device to which the present invention is applied and various conditions, and the scope of the present invention is not intended to be limited to the following examples.

[0010] FIG. 1 is a perspective view showing the internal configuration of a recording apparatus M according to an embodiment. The recording apparatus M is an inkjet recording apparatus. In the following description, the main scanning direction of the recording head is the X direction, the direction in which a recording sheet is transported in a print unit (recording unit) where recording is performed by the recording head is the Y direction, and the vertical direction when the recording apparatus M is installed on a horizontal surface is the Z direction. The direction from right to left when viewed from the front of the recording apparatus M is the +X direction, the direction from the back (rear) to the front (front) of the recording apparatus M is the +Y direction, and the vertical upward direction is the +Z direction.

[0011] The recording device M includes a print unit, a scanner unit (not shown) disposed above the print unit, and The recording device M can perform various processes related to image recording and reading operations in the print unit and the scanner unit, either individually or in conjunction with each other.

[0012] The scanner unit is equipped with an ADF (Auto Document Feeder) and an FBS (Flatbed Scanner). The scanner unit can read (scan) documents that are automatically fed by the ADF. The scanner unit can also read documents that the user places on the FBS platen.

[0013] Although this embodiment describes an example in which the present invention is applied to a recording apparatus having a print unit and a scanner unit, the present invention can also be applied to a recording apparatus having a print unit but no scanner unit.

[0014] The printing unit has a paper feed unit 1, a transport unit 2, a recording unit 3, a recovery unit 4, a discharge unit 5, and a base 6. The user can load recording sheets into the paper feed unit 1. The transport unit 2 is a transport means that transports the recording sheets supplied from the paper feed unit 1. The recording unit 3 records an image on the recording sheet transported by the transport unit 2 using a recording head 31. The recovery unit 4 performs maintenance on the recording unit 3. The discharge unit 5 collects ink recovered by the recovery unit 4 from the recording head 31 via a discharge tube 41 as waste liquid. The paper feed unit 1, transport unit 2, recording unit 3, recovery unit 4, and discharge unit 5 are fastened and fixed to the base 6.

[0015] In the recording unit 3, a carriage 32 that holds the recording head 31 is supported by a chassis 33 that extends along the X direction so as to be able to move back and forth in the X direction. The discharge unit 5 has a waste liquid storage unit 51 that is detachable by the user in the Y direction, and a guide member 52 that houses the waste liquid storage unit 51.

[0016] 2 is a block diagram showing the control configuration of the recording apparatus M. The control unit 201 is an MPU that controls the entire recording apparatus M, including the operation of each unit and data processing. The ROM 202 stores programs executed by the control unit 201 and various data. The RAM 203 temporarily stores data processed by the programs executed by the control unit 201 and data received from the host computer 214. The recording head driver 208 controls the recording head 31.

[0017] The carriage motor 204 drives the carriage 32. The transport motor 205 drives the transport roller 22, the discharge roller 18, and the relay roller 20. The scanner motor 206 drives a reading unit (not shown). The ADF motor 207 drives an ADF reading document transport unit (not shown).

[0018] The motor driver 209 controls the carriage motor 204, the transport motor 205, the scanner motor 206, and the ADF motor 207. The motor driver 209 includes a current upper limit control circuit 210 that specifies the upper limit of the current flowing through the connected carriage motor 204, the transport motor 205, the scanner motor 206, and the ADF motor 207. The current upper limit control circuit 210 can set multiple levels of current upper limit, and the multiple set values ​​can be switched based on a command from the control unit 201.

[0019] The power supply unit 71 generates DC power from a commercial AC power source to be used in the recording apparatus M. The power supply control unit 72 performs power supply control by controlling the on / off of power supply from the power supply unit 71 to various components of the recording apparatus M by sending control signals to switches, FETs, etc. (not shown).

[0020] The operation display unit 211 includes an operation unit such as buttons and a touch panel that allows the user to input instructions to the recording device M, and a display unit such as a liquid crystal panel that displays information such as the status of the recording device M to the user. The control unit 201 receives instructions from the user input through the operation and display unit 211, controls the operation of the recording apparatus M in accordance with the instructions, and notifies the user of jam errors and the like.

[0021] The host computer 214 has a printer driver 2141. When a user commands the execution of a printing operation, the printer driver 2141 exchanges data (printing information) such as a printed image and printing quality with the printing apparatus M. The control unit 201 exchanges data with the host computer 214 via the I / F unit 213.

[0022] Fig. 3 is a cross-sectional view of the recording device M showing the transport path of the recording sheet. Figs. 4(a) to 4(d) are cross-sectional views showing the transport path of the recording sheet when recording is performed on the front and back sides of the recording sheet. The recording sheet is transported by the paper feed roller 21 and the transport roller 22, and recording is performed by the recording unit 3 on the platen 24 before it reaches the discharge roller 18.

[0023] A paper sensor 19 is provided between the paper feed roller 21 and the transport roller 22. If the paper sensor 19 cannot detect paper even when the paper feed roller 21 is rotated, the control unit 201 detects a jam error and notifies the user via the operation display unit 211.

[0024] Recording on the front side of the recording sheet is performed along the path shown in Figure 4(a). When recording on the front side of the recording sheet, the conveying roller 22 and the discharge roller 18 rotate in the forward direction. After recording on the front side is completed, the control unit 201 reverses the rotation of the discharge roller 18, and conveys the recording sheet in the opposite direction (-Y direction) to the conveying direction when recording on the front side of the recording sheet. This causes the recording sheet to reach the nip portion between the conveying roller 22 and the pinch roller 23 again.

[0025] The control unit 201 reverses the rotation of the conveying roller 22. As a result, the recording sheet travels a different conveying path from that used when recording on the front side, as shown in FIG. 4(b), and reaches the relay roller 20. This conveying path is formed by the conveying guide member 70. The conveying guide member 70 is a guide member that guides the conveyance of the recording sheet by the conveying unit 2. The conveying guide member 70 has a conveying surface 790 (see FIG. 7(a)) that is curved in an arc shape in a cross section perpendicular to the sheet width direction (X direction) that intersects with the conveying direction of the recording sheet. A conveying path that reverses the conveying direction of the recording sheet is formed along the conveying surface 790. The relay roller 20 is driven by the same conveying motor 205 as the conveying roller 22, but is configured to rotate so as to convey the recording sheet in the Y direction regardless of the rotation direction of the conveying roller 22.

[0026] As shown in Fig. 4(b), the control unit 201 stops the conveying motor 205 before the leading edge of the recording sheet reaches the paper sensor 19. Thereafter, the control unit 201 reverses the rotation of the conveying rollers 22 and rotates the relay rollers 20, thereby conveying the recording sheet to a position where the leading edge passes the paper sensor 19. As a result, as shown in Fig. 4(c), the recording sheet strikes the conveying rollers 22 which are rotating in the reverse direction, and the skew of the recording sheet is corrected.

[0027] Thereafter, the control unit 201 rotates the conveying roller 22 in the forward direction, so that, as shown in Fig. 4(d), recording is performed on the back side of the recording sheet as it passes through the conveying roller 22. Through the series of operations described above, recording can be performed on both sides of the recording sheet with a single paper feed operation from the paper feed roller 21.

[0028] (Positional relationship between the base, guide member, and power supply) Next, the positional relationship between the transport guide member 70 and the power supply unit 71 on the base 6 will be described. Fig. 5(a) is a perspective view of the base 6 as seen from the rear side of the recording apparatus M. As seen from the rear side of the recording apparatus M, the transport guide member 70 is disposed in approximately the center of the base 6 in the Y direction. As seen from the rear side of the recording apparatus M, the power supply unit 71 is disposed to the right (+X direction side) of the transport guide member 70. The power supply unit 71 is an example of an adjacent unit provided adjacent to the conveyance guide member 70 in the sheet width direction (X direction) that intersects with the conveyance direction (Y direction) of the recording sheet.

[0029] (About attaching and detaching the base and transport guide) Next, a method for attaching and detaching the transport guide member 70 to the base 6 will be described. Fig. 5(b) is a perspective view of the base 6 as seen from the rear side of the recording apparatus M. When attaching the transport guide member 70 to the base 6, the transport guide member 70 is inserted into the base 6 from the rear side in an orientation in which the longitudinal direction of the transport guide member 70 (the direction that is parallel to the X direction when attached) intersects with the transport direction (Y direction), as shown by arrow 8. Next, the first positioning boss 712 and the second positioning boss 713 are inserted into the first boss hole 705 and the second boss hole 706 (see Fig. 6) provided in the first support portion 61, respectively.

[0030] Next, as indicated by arrow 9, the transport guide member 70 is rotated in the Z direction around the first positioning boss 712 and the second positioning boss 713 as the rotation center. Then, the third positioning boss 714 and the fourth positioning boss 715 are inserted into the third boss hole 707 and the fourth boss hole 708 (see FIG. 6 ) provided in the second support portion 62, respectively. By this operation, the transport guide member 70 can be attached to the base 6. Furthermore, by performing the reverse operation, the transport guide member 70 can be removed from the base 6. In this manner, the first positioning boss 712 and the second positioning boss 713 are inserted into and removed from the first boss hole 705 and the second boss hole 706. Furthermore, the third positioning boss 714 and the fourth positioning boss 715 are inserted into and removed from the third boss hole 707 and the fourth boss hole 708. This makes the transport guide member 70 detachable from the main body of the recording apparatus M.

[0031] As shown in Fig. 5(a), the position of the transport guide member 70 when attached to the base 6 is defined as a first position. Also, as shown in Fig. 5(b), the position of the transport guide member 70 when detached from the base 6 is defined as a second position.

[0032] (Regarding the base and positioning boss holes) Next, the base 6 will be described. The base 6 has boss holes for attaching the transport guide member 70. FIG. 6 is a perspective view of the base 6 as viewed from the rear side of the recording apparatus M. A first support portion 61 is provided on the right side of the base 6 as viewed from the rear side, against which the right end face of the transport guide member 70 at the first position abuts. A second support portion 62 is provided on the left side of the base 6, against which the left end face of the transport guide member 70 at the first position abuts. The first support portion 61 has a first boss hole 705 and a second boss hole 706, and the second support portion 62 has a third boss hole 707 and a fourth boss hole 708.

[0033] (About the transport guide member and positioning boss) Next, the transport guide member 70 will be described. As shown in FIG. 4(b), the transport path of the recording sheet when recording is performed on the back side of the recording sheet has a curved portion that is curved in an arc shape (U-shape). FIG. 7(a) is a side view of the transport guide member 70 as viewed in the X direction. The transport guide member 70 has a transport surface 790 that is curved in an arc shape (U-shape). The transport surface 790 forms the curved portion in the transport path. When the recording sheet passes through the curved portion, it curves along the arc shape of the curved portion as shown in FIGS. 4(b) to 4(d).

[0034] FIG. 7(b) is a perspective view of the transport guide member 70 as seen from the front side of the recording apparatus M. The transport guide member 70 is a member made of one component that is integrally molded from resin as a whole. The transport guide member 70 has a first positioning boss 712, a second positioning boss 713, a third positioning boss 714, and a fourth positioning boss 715, which are protrusions for positioning when attaching or detaching the transport guide member 70 to the base 6. In addition, the end of the transport guide member 70 on the -X direction side (second end 72) 7(c)), a protrusion 730 is provided on the end (first end 720, see FIG. 7(c)) of the transport guide member 70 on the +X direction side. A biasing member 716 is provided on the end (first end 720, see FIG. 7(c)) of the transport guide member 70 on the +X direction side. When the transport guide member 70 is attached to the base 6 and in the first position, the biasing member 716 abuts against the first support portion 61 and biases the transport guide member 70 in the -X direction (toward the second support portion 62). This causes the protrusion 730 of the transport guide member 70 to abut against the second support portion 62, and the transport guide member 70 is positioned in the X direction. As shown in FIGS. 7(a) and 7(b), the first positioning boss 712 and the third positioning boss 714 are provided on the rear side (-Y direction side) of the transport surface 790 of the transport guide member 70. Here, in a cross section perpendicular to the sheet width direction (X direction), the side opposite the arc-shaped conveying path shown in FIGS. 4(b) to 4(d) with respect to the conveying surface 790 is the rear side of the recording apparatus M.

[0035] 7(c) is a view of the transport guide member 70 as viewed from the rear side of the recording apparatus M. The first positioning boss 712 and the second positioning boss 713 are provided to protrude in a direction intersecting the transport direction (Y direction) (in the embodiment, a direction perpendicular to the transport direction) from a first end 720 on the +X direction side of the transport guide member 70. The first positioning boss 712 and the second positioning boss 713 are first bosses that protrude in a first direction (+X direction) outward in the sheet width direction (X direction) from the first end 720, which is the end of the transport guide member 70 closer to the power supply unit 71 in the sheet width direction (X direction).

[0036] The third positioning boss 714 and the fourth positioning boss 715 are provided so as to protrude in a direction intersecting the conveying direction (Y direction) (in this embodiment, a direction perpendicular to the conveying direction) directly from a second end 721 on the -X direction side of the conveying guide member 70. The third positioning boss 714 and the fourth positioning boss 715 are second bosses that protrude in a second direction (-X direction) opposite to the first direction in the sheet width direction (X direction) from the second end 721 on the opposite side to the first end 720 in the sheet width direction (X direction).

[0037] The first positioning boss 712 and the second positioning boss 713 are provided in recesses recessed in the second direction (-X direction) from the first end 720. The first positioning boss 712 is provided in the first recess 731, and the second positioning boss 713 is provided in the second recess 732. On the other hand, the second end 721 of the transport guide member 70, from which the third positioning boss 714 and the fourth positioning boss 715 protrude, does not have recesses like the first recess 731 or the second recess 732. In other words, the third positioning boss 714 and the fourth positioning boss 715 protrude from the second end 721, not from recesses.

[0038] The recess amount (depth) of the first recess 731 and the second recess 732 in the sheet width direction (X direction) is defined as V. In the X direction, the area between the first end 720 and the second end 721 of the transport guide member 70 is defined as a recording sheet transport area W. The length B of the first positioning boss 712 and the second positioning boss 713 in the sheet width direction (X direction) is longer than the recess amount of the first recess 731 and the second recess 732 in the sheet width direction (the length of the overlapping area V).

[0039] In the sheet width direction (X direction), the recording sheet transport area W through which the recording sheet passes and the area where the first positioning boss 712 and the second positioning boss 713 extend overlap at least partially. The length of this overlapping area in the X direction is V. The recording sheet transport area W is the maximum area that can be used to transport the recording sheet. Here, the area is defined as the area between the first end 720 and the second end 721, but part of the area between the first end 720 and the second end 721 may also be the recording sheet transport area.

[0040] (Regarding the positional relationship between the base and transport guide member and the power supply) 8A is a cross-sectional view of the base 6, the transport guide member 70, and the power supply unit 71 as viewed from the rear side of the recording apparatus M. The first boss hole 705, the second boss hole 706, and the third boss hole of the base 6 The first positioning boss 712, the second positioning boss 713, the third positioning boss 714, and the fourth positioning boss 715 of the transport guide member 70 are inserted into the first boss hole 707 and the fourth boss hole 708. In this way, the transport guide member 70 is positioned relative to the base 6.

[0041] 8(b) shows the state before the first positioning boss 712 and the second positioning boss 713 are inserted into the first boss hole 705 and the second boss hole 706, respectively. FIG. 8(c) shows the state after the first positioning boss 712 and the second positioning boss 713 are inserted into the first boss hole 705 and the second boss hole 706, respectively. As shown in FIG. 8(c), the first positioning boss 712 and the second positioning boss 713 are inserted into the first boss hole 705 and the second boss hole 706, respectively, in order to attach or detach the transport guide member 70. In this case, the positioning bosses are positioned so that the ends on the +X direction side do not come into contact with the power supply unit 71.

[0042] (effect) The effects of the recording apparatus M of the embodiment will be described. FIG. 9 is a view from the rear side of the recording apparatus M, and is a diagram schematically illustrating the positional relationship of the transport guide member 70, power supply unit 71, first support portion 61, and second support portion 62 of the embodiment. FIG. 9(a) shows a state in which the transport guide member 70 is in the first position (attached to the base 6), and FIG. 9(b) shows a state in which the transport guide member 70 has been moved in the +X direction to remove it from the base 6. Note that when the transport guide member 70 is attached to the base 6, it also goes through a state similar to FIG. 9(b) to reach the state shown in FIG. 9(a). In addition, a comparative example will be described to illustrate the effects of the recording apparatus M of the embodiment. FIG. 10 is a diagram similar to FIG. 9 illustrating a recording apparatus of Comparative Example 1. FIG. 11 is a diagram similar to FIG. 9 illustrating a recording apparatus of Comparative Example 2.

[0043] Moving the transport guide member 70 in the +X direction to attach or detach it from the base 6 is referred to as "stroking." The amount of movement of the transport guide member 70 in the +X direction at this time is referred to as the "stroke length."

[0044] To remove the transport guide member 70 from the base 6 when it is in the first position, it is necessary to move the transport guide member 70 in the +X direction to remove the third positioning boss 714 and the fourth positioning boss 715 from the third boss hole 707 and the fourth boss hole 708, respectively. The amount of movement of the transport guide member 70 in the +X direction required to remove the third positioning boss 714 and the fourth positioning boss 715 from the third boss hole 707 and the fourth boss hole 708, respectively, is the stroke length. In other words, when the transport guide member 70 is in the first position, the length of the third positioning boss 714 and the fourth positioning boss 715 that are inside the third boss hole 707 and the fourth boss hole 708 is the stroke length. To attach and detach the transport guide member 70 to and from the base 6, a certain stroke length must be ensured.

[0045] Comparative Example 1 is configured such that a first positioning boss 712 and a second positioning boss 713, each having a boss length B1 that is approximately the same as the boss length B of the embodiment, are provided at a first end 720 of the transport guide member 70. In other words, Comparative Example 1 is an example in which the boss length is increased to ensure a sufficient stroke length.

[0046] In Comparative Example 2, a first positioning boss 712 and a second positioning boss 713 having a boss length B2 that is approximately the same as the protrusion amount P of the embodiment are provided at a first end 720 of the transport guide member 70. In other words, Comparative Example 2 is an example in which the boss length is shortened in order to reduce the size of the recording device.

[0047] The embodiment is characterized in that the stroke length is ensured by increasing the boss length B, and the boss is provided in a recess to reduce the protrusion amount P, thereby reducing the size of the recording device M. This will be explained in detail below.

[0048] The transport guide member 70 of this embodiment has a first recess 731 and a second recess 732 that are recessed in the -X direction from a first end 720 on the +X direction side. The first positioning boss 712 is provided so as to protrude in the +X direction from the bottom of the first recess 731. The second positioning boss 713 is provided so as to protrude in the +X direction from the bottom of the second recess 732.

[0049] The first support portion 61 provided on the base 6 has a first protruding portion 611 and a second protruding portion 612 that protrude in the second direction (-X direction). The outer diameter of the first protruding portion 611 is smaller than the inner diameter of the first recessed portion 731, so that the first protruding portion 611 can be inserted into and removed from the first recessed portion 731. The outer diameter of the second protruding portion 612 is smaller than the inner diameter of the second recessed portion 732, so that the second protruding portion 612 can be inserted into and removed from the second recessed portion 732. A first boss hole 705 is provided in the first protruding portion 611, and a second boss hole 706 is provided in the second protruding portion 612.

[0050] The length of the first positioning boss 712 and the second positioning boss 713 in the X direction is defined as a boss length B. Since the first positioning boss 712 and the second positioning boss 713 are provided in the first recess 731 and the second recess 732, respectively, the protrusion amount P of the first positioning boss 712 and the second positioning boss 713 from the first end 720 is shorter than the boss length B (P <B)。

[0051] When the transport guide member 70 is in the first position, the distance D is defined as the distance between the ends of the first protrusion 611 and the second protrusion 612 on the second direction side (-X direction side) and the bottoms of the first recess 731 and the second recess 732. The length of the third positioning boss 714 and the fourth positioning boss 715 that is inside the third boss hole 707 and the fourth boss hole 708 is defined as the engagement length K. In this embodiment, the distance D is configured to be longer than the engagement length K. This ensures the stroke length S required to pull the third positioning boss 714 and the fourth positioning boss 715 out of the third boss hole 707 and the fourth boss hole 708, respectively, as shown in FIG. 9(b).

[0052] On the other hand, as shown in Figures 10 and 11, in Comparative Examples 1 and 2, the protrusion amount and the boss length are equal (P1 = B1, P2 = B2) because they are provided at the first end 720 of the first positioning boss 712 and the second positioning boss 713.

[0053] The power supply unit 71 is positioned so that a gap C is maintained between the power supply unit 71 and the +X-direction ends of the first positioning boss 712 and the second positioning boss 713 when the transport guide member 70 is in the second position shown in FIG. 9B. The transport guide member 70, when attached to the apparatus body, is moved in the first direction (+X-direction) by at least the engagement length K. In this case, a gap C is provided between the power supply unit 71 and the first-direction (+X-direction) ends 7120, 7130 of the first positioning boss 712 and the second positioning boss 713. This prevents problems caused by the boss tips hitting the power supply unit 71 when the transport guide member 70 is attached or detached. The distance T between the first end 720 of the transport guide member 70 and the power supply unit 71 when the transport guide member 70 is in the first position is T = P + S + C.

[0054] On the other hand, in Comparative Example 1, the boss protrusion amount P1 is long, as shown in Fig. 10. Therefore, in order to ensure the same stroke length S1 and gap C as in the embodiment, the distance T1 (= P1 + S1 + C) between the first end 720 of the transport guide member 70 and the power supply unit 71 when the transport guide member 70 is in the first position becomes long, which leads to an increase in the size of the recording device.

[0055] In Comparative Example 2, as shown in FIG. 11, the boss protrusion amount P2 is short. Therefore, when the transport guide member 70 is in the first position, the distance T2 between the first end 720 and the power supply unit 71 can be shortened, but the stroke length S2 is short. Therefore, there are cases where the transport guide member 70 cannot be attached or detached. To enable attachment or detachment, it is also possible to shorten the engagement length K2 between the boss and the boss hole when the transport guide member 70 is in the first position as shown in FIG. 11. However, If the engagement length between the boss hole and the base 6 is shortened, there is a possibility that the transport guide member 70 will fall off the base 6. In Comparative Example 1, a sufficient engagement length K1 can be ensured, but ensuring the stroke length S1 as described above results in an increase in the size of the recording device.

[0056] In the transport guide member 70 of this embodiment, there is an overlapping region V between the recording sheet transport region W and the region where the first positioning boss 712 and the second positioning boss are present. Therefore, the protrusion amount P1 of the first positioning boss 712 and the second positioning boss from the first end 720 is shorter than the boss length B1 by the length of the overlapping region V. Meanwhile, because the first protrusion 611 and the second protrusion 612 are insertable into and removable from the first recess 731 and the second recess 732, respectively, a stroke length S1 corresponding to the boss length B1 can be ensured. Furthermore, when in the first position, a sufficient engagement length K of the first positioning boss 712 and the second positioning boss 713 with respect to the first boss hole 705 and the second boss hole 706 can be ensured. This allows the transport guide member 70 to be more securely attached to the base 6.

[0057] (Base, power supply and left side cover) FIG. 12(a) is a cross-sectional view of the base 6, power supply unit 71, and left side cover 81 as seen from the front. FIG. 12(b) is a schematic diagram of the configuration shown in FIG. 12(a). The base 6, which constitutes the main body of the recording device M, has a mounting portion 63 on which the power supply unit 71 is mounted. The left side cover 81, which constitutes the main body of the recording device M, is provided on the opposite side of the mounting portion 63 in the direction perpendicular to the mounting surface of the mounting portion 63 (Z direction) with the power supply unit 71 sandwiched therebetween, and has a rib 82 that serves as an abutment portion that abuts against the power supply unit 71. The mounting portion 63 is elastically deformable and presses the power supply unit 71 toward the rib 82. The rib 82, which extends from the left side cover 81 toward the top surface of the power supply unit 71, abuts against the top surface 710 of the power supply unit 71.

[0058] (effect) With this configuration, regardless of the size of the power supply unit 71, the power supply unit 71 always abuts against the rib 82 of the left side cover 81, and is always biased in the +Z direction by the elastic force of the mounting portion 63 of the base 6. Therefore, the position of the power supply unit 71 in the Z direction is regulated by the rib 82 and the mounting portion 63. This makes it possible to stabilize the posture of the power supply unit 71 when the user inserts a power plug (not shown) into the inlet portion (not shown) of the power supply unit 71, improving operability for the user.

[0059] (Other Examples) In the above embodiment, the first positioning boss 712 and the second positioning boss 713 are provided in the first recess 731 and the second recess 732, respectively, but the third positioning boss 714 and the fourth positioning boss 715 may also be provided in similar recesses. Also, although an example has been shown in which two positioning bosses are provided at each of the first end 720 and the second end 721 of the transport guide member 70, the number of positioning bosses is not limited to the above example as long as it is one or more.

[0060] The disclosure of this embodiment includes the following configuration. (Configuration 1) a conveying means for conveying the recording sheet in a conveying direction; a guide member for guiding the conveyance of the recording sheet by the conveyance means; a recording head for recording on the recording sheet conveyed by the conveying means; an adjacent unit provided adjacent to the guide member in a sheet width direction intersecting the conveying direction; In a recording device comprising: The guide member is a first boss protruding in a first direction outward in the seat width direction from a first end portion that is an end portion closer to the adjacent unit in the seat width direction; a second boss protruding from a second end portion opposite to the first end portion in the seat width direction in a second direction opposite to the first direction in the seat width direction; and The main body of the recording device is a first support portion having a first boss hole into which the first boss is inserted; a second support portion having a second boss hole into which the second boss is inserted; and the guide member is detachable from the device body by inserting and removing the first boss into the first boss hole and inserting and removing the second boss into the second boss hole, 10. A recording apparatus, wherein an area through which a recording sheet passes and an area through which the first boss extends at least partially overlap in the sheet width direction. (Configuration 2) the first end portion has a recess recessed in the second direction, the first boss is provided in the recess, 2. The recording device according to configuration 1, wherein the length of the first boss in the sheet width direction is longer than the recessed amount of the recess in the sheet width direction. (Configuration 3) the first support portion has a protruding portion that protrudes in the second direction and is insertable into and removable from the recessed portion, 3. The recording device according to claim 2, wherein the first boss hole is provided at least in the protruding portion. (Configuration 4) The recording device described in configuration 3, wherein when the guide member is attached to the device main body, the distance between the end of the protrusion on the second direction side and the bottom of the recess is longer than the engagement length, which is the length of the second boss inside the second boss hole. (Configuration 5) The recording device described in configuration 4, wherein when the guide member attached to the device main body is moved in the first direction by at least the engagement length, a gap is provided between the end of the first boss on the first direction side and the adjacent unit. (Configuration 6) 6. The recording apparatus according to any one of configurations 1 to 5, wherein the guide member is a member that is integrally molded from resin. (Configuration 7) 7. The recording apparatus according to any one of configurations 1 to 6, wherein the adjacent unit is a power supply unit. (Configuration 8) the guide member has a conveying surface that is curved in an arc shape in a cross section perpendicular to the sheet width direction, 8. The recording device according to any one of configurations 1 to 7, wherein a transport path for reversing the transport direction of the recording sheet is formed along the transport surface. (Configuration 9) In a cross section perpendicular to the sheet width direction, the side opposite to the conveying path with respect to the conveying surface is the rear side of the recording device, 9. The recording apparatus according to configuration 8, wherein the first boss is provided on the rear side of the transport surface of the guide member. (Configuration 10) the second end does not have a recess recessed in the first direction, 10. The recording device according to any one of configurations 1 to 9, wherein the second boss projects directly from the second end. (Configuration 11) The first end portion is provided with the guide member attached to the device body. 11. The recording device according to any one of configurations 1 to 10, further comprising a biasing member that biases the member toward the second support portion. (Configuration 12) The device body includes: a placement section on which the adjacent unit is placed; a contact portion provided on the opposite side of the mounting portion with the adjacent unit interposed therebetween, the contact portion contacting the adjacent unit; and 12. The recording device according to any one of configurations 1 to 11, wherein the mounting portion is elastically deformable and presses the adjacent unit toward the contact portion. [Explanation of symbols]

[0061] M: recording device, 2: transport section, 31: recording head, 61: first support section, 62: second support section, 70: transport guide member, 71: power supply unit, 705: first boss hole, 706: second boss hole, 707: third boss hole, 708: fourth boss hole, 712: first positioning boss, 713: second positioning boss, 714: third positioning boss, 715: fourth positioning boss, 731: first recess, 732: second recess

Claims

1. a conveying means for conveying the recording sheet in a conveying direction; a guide member for guiding the conveyance of the recording sheet by the conveyance means; a recording head for recording on the recording sheet conveyed by the conveying means; an adjacent unit provided adjacent to the guide member in a sheet width direction intersecting the conveying direction; In a recording device comprising: The guide member is a first boss protruding in a first direction outward in the seat width direction from a first end portion that is an end portion closer to the adjacent unit in the seat width direction; a second boss protruding from a second end portion opposite the first end portion in the seat width direction in a second direction opposite to the first direction in the seat width direction; and The main body of the recording device is a first support portion having a first boss hole into which the first boss is inserted; a second support portion having a second boss hole into which the second boss is inserted; and the guide member is detachable from the device body by inserting and removing the first boss into the first boss hole and inserting and removing the second boss into the second boss hole, a region where the recording sheet passes and a region where the first boss extends are at least partially overlapped in the sheet width direction;

2. the first end portion has a recess recessed in the second direction, the first boss is provided in the recess, 2. The recording apparatus according to claim 1, wherein the length of the first boss in the sheet width direction is longer than the recessed amount of the recess in the sheet width direction.

3. the first support portion has a protruding portion that protrudes in the second direction and is insertable into and removable from the recessed portion, 3. The recording apparatus according to claim 2, wherein the first boss hole is provided at least in the protruding portion.

4. 4. The recording device according to claim 3, wherein when the guide member is attached to the device body, the distance between the end of the protrusion on the second direction side and the bottom of the recess is longer than a hook length, which is the length of the second boss inside the second boss hole.

5. 5. A recording device as described in claim 4, wherein when the guide member attached to the device main body is moved in the first direction by at least the engagement length, a gap is provided between the end of the first boss on the first direction side and the adjacent unit.

6. 6. The recording apparatus according to claim 1, wherein the guide member is a member that is integrally molded from resin.

7. 6. The recording apparatus according to claim 1, wherein the adjacent unit is a power supply unit.

8. the guide member has a conveying surface that is curved in an arc shape in a cross section perpendicular to the sheet width direction, 6. The recording apparatus according to claim 1, wherein a transport path for reversing the transport direction of the recording sheet is formed along the transport surface.

9. In a cross section perpendicular to the sheet width direction, the side opposite to the conveying path with respect to the conveying surface is the rear side of the recording device, The recording apparatus according to claim 8 , wherein the first boss is provided on the rear side of the transport surface of the guide member.

10. the second end does not have a recess recessed in the first direction, 6. The recording apparatus according to claim 1, wherein the second boss projects directly from the second end.

11. A recording device according to any one of claims 1 to 5, wherein a biasing member is provided at the first end to bias the guide member in a direction toward the second support portion when the guide member is attached to the device main body.

12. The device body includes: a placement section on which the adjacent unit is placed; a contact portion provided on the opposite side of the mounting portion with the adjacent unit interposed therebetween, the contact portion contacting the adjacent unit; and 6. The recording apparatus according to claim 1, wherein the mounting portion is elastically deformable and presses the adjacent unit toward the contact portion.

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