JP2020019575A - Recording device - Google Patents

Abstract

To provide a recording device capable of enhancing handleability in switching a state of a medium inversion part.SOLUTION: A recording device includes a recording part and a medium inversion part for reversing a medium conveyed from the recording part toward a second direction opposite to a first direction to sent it to a side of the recording part. The medium inversion part includes an inversion roller and an outside path member, and is capable of switching a first state of positioning the inversion roller and the outside path member to a use position with respect to a device body including the recording part and a second state of detaching the inversion roller and the outside path member from the use position. The device body includes a guide member positioned below the inversion roller when the medium inversion part is in the first state to guide the medium to the outside path member. The guide member includes a guide part for guiding the medium to a higher position than a lower end part of the inversion roller to guide it to the outside path member and a roller passing part positioned in a space of the guide part in a medium width direction and through which the inversion roller passes according to switching of the medium inversion part.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a recording device that performs recording on a medium.

A recording device represented by a facsimile or a printer has a reversing conveyance path for reversing a recording sheet as an example of a medium. On the second surface on the side, there is one that can record.
Patent Document 1 discloses an example of such a recording device. In the recording apparatus described in Patent Literature 1, a reversing roller that forms a reversing path for reversing recording paper is provided in a curved reversing unit that is detachable from a recording apparatus main body. Then, by removing the curl reversing unit, the paper conveying path inside the apparatus is exposed, and the jam can be removed.

JP 2012-240813 A

It is important to provide a reversing roller for the curving reversing unit and remove the reversing roller from the apparatus main body as in the configuration described in Patent Literature 1, from the viewpoint of facilitating jam clearance. In such a configuration, a path forming member facing the reversing roller and configuring the outside of the reversing path is also provided in the curved reversing unit.
For this reason, the weight of the bending reversing unit increases, the handleability decreases, and when the removed bending reversing unit is dropped, the possibility of breakage increases. Note that such a problem is not limited to the case where the bending reversing unit is configured to be detachable from the apparatus main body, but also occurs, for example, when the bending reversing unit is configured to be openable and closable with respect to the apparatus main body.

  In order to solve the above problems, a recording apparatus according to the present invention includes a recording unit that performs recording on a medium conveyed in a first direction, and a recording unit that performs recording in a second direction opposite to the first direction. A medium reversing unit for reversing the medium conveyed from the recording unit by a reversing path and sending the medium to the recording unit side, wherein the medium reversing unit comprises a reversing roller forming the inside of the reversing path, and the reversing path. And a first state in which the reversing roller and the outer path member are positioned at a use position with respect to the apparatus main body including the recording unit, and the reversing roller and the outer path member. Can be switched to a second state in which the medium is removed from the use position, and the apparatus main body is located below the reversing roller when the medium reversing section takes the first state, and passes the medium through the outer path. A guide member that guides the medium to a position higher than a lower end of the reversing roller and guides the medium to the outer path member; A roller passage portion that is located between the invitation portions in the width direction and through which the reversing roller passes when the state of the medium reversing portion is switched.

FIG. 1 is a perspective view of a printer according to the invention. FIG. 2 is a side sectional view showing a medium transport path in the printer according to the invention. FIG. 1 is a perspective view showing an apparatus main body of a printer according to the present invention. FIG. 3 is a perspective view showing a state where a medium reversing unit is removed from the apparatus main body. FIG. 3 is a perspective view of a medium reversing unit. FIG. 3 is a perspective view of a medium reversing unit. FIG. 4 is a perspective view showing a relationship between a concave portion and a convex portion in a state where the medium reversing unit is mounted on the apparatus main body. FIG. 4 is a side cross-sectional view showing a reversal state of a medium in the rotating member according to the present invention. FIG. 4 is a side cross-sectional view showing a reversal state of a medium in the rotating member according to the present invention. FIG. 4 is a side cross-sectional view illustrating a relationship between a rotating member and an invitation portion in a first state. FIG. 4 is a perspective view showing a relationship between a roller passing portion and a rotating member passing portion in a first state, and a reversing roller and a rotating member. FIG. 4 is a side sectional view showing a relationship between a rotating member passage section and the rotating member. FIG. 5 is a perspective view showing a state in which a reversing roller and a rotating member are removed from the apparatus main body in a second state. FIG. 3 is a perspective view of the frame body as viewed from the front side in the apparatus depth direction. FIG. 4 is a perspective view of the frame body as viewed from the rear side in the apparatus depth direction and from the right side in the apparatus width direction. FIG. 4 is a perspective view of the frame body as viewed from the rear side in the apparatus depth direction and from the left side in the apparatus width direction. The perspective view of a guide member. FIG. 4 is a perspective view illustrating attachment of a guide member to a frame body. FIG. 4 is a perspective view illustrating attachment of a guide member to a frame body. AA sectional drawing in the side view and side view which show the engagement state of a frame body and a guide member. FIG. 4 is a side view showing one embodiment of a power supply unit attached to a side frame portion of the frame body. FIG. 4 is a perspective view showing one embodiment of a power supply unit attached to a side frame portion of the frame body. The side view showing other forms of the power supply unit attached to the side frame part of the frame body. FIG. 9 is a perspective view showing another mode of the power supply unit attached to the side frame portion of the frame body. FIG. 3 is a plan view showing a medium support unit and a liquid storage unit. FIG. 4 is a perspective view of a liquid storage unit cover mounted on the medium support unit. FIG. 4 is a side sectional view of a liquid storage unit. FIG. 6 is a side sectional view showing another example of the liquid storage unit.

Hereinafter, the present invention will be schematically described.
A recording apparatus according to a first aspect of the present invention includes a recording unit that performs recording on a medium conveyed in a first direction, and a recording unit that performs recording in a second direction opposite to the first direction. A medium reversing unit for reversing the medium conveyed by the reversing path and sending the medium to the recording unit side, wherein the medium reversing unit includes a reversing roller constituting the inside of the reversing path, and an outside of the reversing path. And a first state in which the reversing roller and the outer path member are positioned at a use position with respect to the apparatus main body including the recording unit, and the reversing roller and the outer path member are disposed in the first state. The apparatus main body can be switched to a second state of being removed from the use position, and the apparatus main body is positioned below the reversing roller when the medium reversing section takes the first state, and the medium is transferred to the outer path member. A guiding member that guides the medium to a position higher than the lower end of the reversing roller, and guides the medium to the outer path member, and in a medium width direction that is a direction that intersects the medium conveying direction. And a roller passage portion which is located between the invitation portions and through which the reversing roller passes when the state of the medium reversing portion is switched.

According to this aspect, the medium reversing section is configured to be switchable between the first state and the second state with respect to the apparatus main body, and the apparatus main body is positioned below the reversing roller provided in the medium reversing section. And a guide member for guiding the medium to the outer path member, wherein the guide member guides the medium to a position higher than a lower end portion of the reversing roller when the medium reversing section takes the first state, Since the guide member is provided with the guiding portion, the outer path member provided on the medium reversing portion side can be formed in a small size, that is, the weight of the medium reversing portion can be reduced. Thereby, it is possible to improve the handleability when switching the state of the medium reversing unit, and it is possible to reduce the risk of breakage when the medium reversing unit is dropped.
In addition, the medium reversing section is located between the invitation sections in a medium width direction that is a direction intersecting with the medium transport direction, and a roller passing through which the reversing roller passes along with the state switching of the medium reversing section. Since the unit is provided, it is possible to avoid a problem that the reversing roller is caught on the invitation unit when switching the state of the medium reversing unit.

  According to a second aspect of the present invention, in the recording apparatus according to the first aspect, the reversing roller is provided on a roller shaft extending in the medium width direction, and the roller shaft includes the medium with respect to the reversing roller. A rotating member is provided at intervals in the width direction, the rotating member having a diameter larger than the diameter of the roller shaft and smaller than the diameter of the reversing roller.

  According to this aspect, the reversing roller is provided on a roller shaft extending in the medium width direction, and the roller shaft is spaced apart from the reversing roller in the medium width direction and has a smaller diameter than the roller shaft. Since the rotating member that is large and has a diameter equal to or less than the diameter of the reversing roller is provided, the posture of the medium when reversing the medium by the reversing roller is made more uniform along the medium width direction. be able to.

  According to a third aspect of the present invention, in the second aspect, the guide member is located between the invitation portions in the medium width direction, and the rotation member passes through the rotation member in accordance with a state change of the medium reversing portion. It is characterized by having a member passing portion.

  According to this aspect, the guide member is provided between the invitation portions in the medium width direction, and includes a rotating member passing portion through which the rotating member passes when the state of the medium reversing portion is switched. When switching the state of the reversing unit, it is possible to avoid a problem that the rotating member is caught on the invitation unit.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the guide member is provided with a driven roller that nips a medium between the reversing roller and the driven roller. I do.

  According to this aspect, since the guide member is provided with a driven roller that nips the medium between the reversing roller and the driven roller, the driven roller is provided. The weight of the reversing part can be reduced.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the apparatus main body includes side frames located on both sides in the medium width direction, and a center located between the side frames. The frame portion has a frame body integrally formed, the guide member is attached between two side frame portions, and the two side frame portions are provided at ends of the frame body in the second direction. It is characterized by connecting.

  According to this aspect, the apparatus main body has a frame body including a side frame portion located on both sides in the medium width direction and a center frame located therebetween, and the guide member has two side frame portions. Since the two side frame portions are connected to each other at the end of the frame body in the second direction, the strength of the frame body as a structure can be improved. This can be countered when a force acts to push the gap between the parts.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the one of the apparatus main body and the medium reversing portion has a convex portion and the other of the device main body and the medium reversing portion has the convex portion. A concave portion into which the portion enters, and the convex portion enters the concave portion, whereby the position of the medium reversing portion in the medium width direction with respect to the apparatus main body when the medium reversing portion is in the first state is determined. It is characterized by.
According to this aspect, the position of the medium reversing portion in the medium width direction with respect to the apparatus main body is determined by the entry of the convex portion into the concave portion, so that the reversing path can be appropriately formed.

Hereinafter, the present invention will be described specifically.
In each of FIGS. 1 to 26, the Z-axis direction is a vertical direction, which is the height direction of the apparatus. The X-axis direction and the Y-axis direction are directions along the horizontal plane, the X-axis direction is the apparatus width direction, and the Y-axis direction is the apparatus depth direction. From the viewpoint of the conveyance of a medium represented by a recording sheet, the medium conveyance direction when recording on a medium is a direction along the Y-axis direction, and the X-axis direction is a medium width direction. In this specification, the “first direction” is the + Y-axis direction (front side) in the Y-axis direction which is the apparatus depth direction, and the “second direction” is the −Y-axis direction (rear side) in the Y-axis direction. ).

<<<< About Printer Overview >>>>
First, an outline of a recording apparatus 10 according to an embodiment of the present invention will be described with reference to FIGS. In FIG. 1, a printer 10 includes an apparatus main body 12 and a scanner unit 14. In the present embodiment, the scanner unit 14 is disposed above the apparatus main body 12 and is attached to the apparatus main body 12 so as to be rotatable around an end of the apparatus main body 12 on the back side of the apparatus. A discharge port 16 is provided on the front side of the apparatus main body 12.

  An operation unit 18 for operating the printer 10 is provided above the outlet 16. Below the discharge port 16, there is provided a discharge stacker 20 that can project to the front side of the apparatus main body 12. FIG. 3 shows a state in which the outer cover is removed from the apparatus main body 12.

  In FIG. 2, the medium transport path 22 in the printer 10 will be described. Note that, in FIG. 2, a two-dot chain line denoted by reference symbol P indicates a path of the medium P that travels along the medium transport path 22. A medium feeding section 24 is provided on the back side of the apparatus main body 12. The medium feeding section 24 is provided with a feeding port 26.

  On the downstream side of the feed port 26 in the transport direction of the medium P, a medium placing portion 28 (FIGS. 2 and 3) is provided, and the medium P can be placed in an inclined state. A feed roller 30 is provided downstream of the medium placement unit 28. A transport roller 32, a recording unit 34, and a discharge roller 36 are provided downstream of the feed roller 30 along the transport direction of the medium P.

  In the present embodiment, the recording section 34 includes a carriage 38 and a recording head 40 (FIG. 1). The carriage 38 (FIG. 3) is configured to be able to reciprocate in the apparatus width direction with respect to the apparatus main body 12. The recording head 40 is provided below the carriage 38, and is configured to be able to eject ink, which is an example of a liquid, toward the lower side in the device height direction.

  A medium support section 42 is provided below the recording head 40 in the apparatus height direction. The medium support section 42 is provided corresponding to the movement area of the carriage 38 in the apparatus width direction. The medium support section 42 faces the recording head 40 with a space (gap) in the apparatus height direction. The configuration of the medium support unit 42 will be described later.

  The transport roller 32 and the discharge roller 36 are configured to be rotationally driven by a drive source (not shown) provided in the apparatus main body 12 as an example. In the present embodiment, the medium P supplied from the medium feeding unit 24 is transported by the feed roller 30 and the transport roller 32 to a position facing the recording head 40. When the medium P is transported to a position facing the recording head 40, recording is performed by the recording head 40. The medium P on which the recording has been performed is discharged to the front side of the apparatus from the discharge port 16 by the discharge roller 36.

  In the present embodiment, the apparatus main body 12 supports double-sided recording on the medium P. Specifically, the apparatus main body 12 includes a medium reversing path 44 (FIG. 2). As shown in FIG. 2, a reversing roller 46 is disposed below the medium placement unit 28 in the apparatus height direction. In the present embodiment, the medium reversing path 44 sends the medium P to the upstream side in the transport direction by rotating the transport roller 32 in the reverse direction, inverts the medium P by the reverse roller 46, and again records the recording unit 34 via the transport roller 32. Is configured as a path for feeding the medium P to the medium. The configuration of the reversing roller 46 will be described later.

<<<< About the medium reversing part >>>>
2 and 4 to 7, a medium reversing unit 48 that is detachable from the apparatus main body 12 is provided on the back side of the apparatus main body 12 as an example. In the present embodiment, the medium reversing unit 48 includes a reversing roller 46, an outer path member 50 (FIGS. 5, 6, 8, and 9), and a driven roller 51. In the present embodiment, the reversing roller 46 forms a part of a path inside the medium reversing path 44, and the outer path member 50 forms a part of a path outside the medium reversing path 44. 5, 11 and 13, the reversing roller 46 is attached to a substantially central portion of a roller shaft 52 extending in the width direction of the apparatus. The driven roller 51 is in contact with the reversing roller 46 on the upper side in the device height direction, and is configured to be able to be driven and rotated with respect to the reversing roller 46.

  The reversing roller 46 is fixed to the roller shaft 52 so as to rotate with the roller shaft 52. A drive gear 54 (FIGS. 4 to 6) is attached to an end of the roller shaft 52 on the −X-axis direction side in the device width direction (X-axis direction). In the present embodiment, when the medium reversing unit 48 is mounted on the apparatus main body 12, the drive gear 54 meshes with a driving force transmission unit (not shown) provided in the apparatus main body 12, and the driving gear 54 Is transmitted to the roller shaft 52. As a result, the roller shaft 52 and, consequently, the reversing roller 46 are driven to rotate.

  5, 11 and 13, on both sides of the reversing roller 46 in the roller shaft 52, a plurality of rotating members 56 are attached to the roller shaft 52 so as to rotate together with the roller shaft 52 at appropriate intervals. In the present embodiment, three rotating members 56 are arranged on each side of the reversing roller 46.

  In the present embodiment, as shown in FIGS. 8 and 9, as an example, the reversing roller 46 has a diameter dimension of a diameter d1, the rotating member 56 has a diameter dimension of a diameter d2, and the roller shaft 52. Has a diameter dimension of a diameter d3. In the present embodiment, the diameter d2 of the rotating member 56 is equal to or less than the diameter d1 of the reversing roller 46 and is set to be larger than the diameter d3 of the roller shaft 52.

  In FIG. 6, a rib-shaped convex portion 48a is formed on the medium reversing portion 48 as an example. On the other hand, in FIG. 7, a groove-shaped concave portion 12a is formed at the rear end of the apparatus main body 12. As shown in FIG. 7, when the medium reversing section 48 is mounted on the apparatus main body 12, the rib-shaped convex section 48a enters the groove-shaped concave section 12a. As a result, the position of the medium reversing section 48 with respect to the apparatus main body 12 in the apparatus width direction is determined.

  In this embodiment, FIGS. 2, 8, 9, 10, and 12 show a state in which the medium reversing unit 48 is mounted on the apparatus main body 12, that is, the reversing roller 46 and the outer path member 50 are positioned at the use position. 1 shows the first state. 4 and 13 illustrate a state in which the medium reversing unit 48 is removed from the apparatus main body 12, that is, a second state in which the reversing roller 46 and the outer path member 50 are removed from the use position. 11 and 13 illustrate only the reversing roller 46, the roller shaft 52, and the rotating member 56 in the medium reversing unit 48.

  8 to 10, a guide member 58 (FIG. 17) is located below the reversing roller 46 when the medium reversing unit 48 is mounted on the apparatus main body 12. In FIG. 17, the guide member 58 is configured as a flat plate member extending in the width direction of the apparatus. The upper surface 58 a of the guide member 58 forms a part of the medium reversing path 44.

  A curved portion 58b that curves downward is formed at a position on the upper surface 58a of the guide member 58 near the rear end of the apparatus. The curved portion 58b is formed so as to constitute a part of the medium reversing path 44 through which the medium can pass between the outer peripheral surface of the reversing roller 46 and the curved portion 58b.

  8 to 10, in the curved portion 58b of the guide member 58, the medium P guided along the upper surface 58a of the guide member 58 is provided at the end on the rear side of the apparatus. An upwardly inclined invitation portion 58c for guiding to the path member 50 is formed.

  As shown in FIG. 10, the invitation portion 58c is configured as an inclined portion that invites the medium P toward a position higher than the lower end portion of the reversing roller 46 in the apparatus height direction. Specifically, the invitation portion 58c is formed such that the end position of the invitation portion 58c is higher than the lower end portion of the reversing roller 46 in the device height direction by a height H1. That is, in the height direction of the apparatus, the reversing roller 46 and the invitation portion 58c forming a part of the medium reversing path 44 overlap.

  Further, as shown in FIGS. 4, 11, and 13, the driven roller 60 is rotatably driven relative to the reversing roller 46 at a position corresponding to the position of the reversing roller 46 in the device width direction of the guide member 58. Is provided.

  In the present embodiment, since the guiding portion 58c and the driven roller 60 can be provided on the guide member 58 and eventually on the apparatus main body 12, the configuration of the medium reversing portion 48 can be simplified and the weight of the medium reversing portion 48 can be reduced. . As a result, when the medium reversing unit 48 is detached from the apparatus main body 12, it is possible to suppress damage caused when the medium reversing unit 48 is dropped.

  Here, the medium reversing path 44 will be described with reference to FIGS. When the transport roller 32 is rotated in the reverse direction and the medium P1 is returned from the recording section 34 to the upstream side in the transport direction, the medium P1 is fed into the medium reversing path 44 between the upper surface 58a of the guide member 58 and the medium reversing section 48.

  When the medium P1 sent to the medium reversing path 44 advances to the reversing roller 46, it is nipped by the reversing roller 46 and the driven roller 60. At this time, the invitation unit 58c guides the leading end of the medium P1 upward in the device height direction. As a result, the medium P <b> 1 is sent to the driven roller 51 by the reversing roller 46 while being wound around the outer peripheral surface of the reversing roller 46. Then, the medium P <b> 1 is nipped by the reversing roller 46 and the driven roller 51, and sent to the recording unit 34 again. At this time, the front surface and the back surface of the medium P1 are reversed.

  8 and 9, the rotating member 56 will be described. 8 and 9, the thick line denoted by reference numeral P1 represents the medium P1 that has been sent to the medium reversing path 44 and is in contact with the rotating member 56. In FIG. 8, a portion where the leading end of the medium P1 sent to the medium reversing path 44 contacts the reversing roller 46 is defined as R1. In FIG. 9, when the reversing roller 46 rotates, a portion R <b> 1 of the outer peripheral surface of the reversing roller 46 that contacts the front end of the medium P <b> 1 is displaced upward in the apparatus height direction with the rotation of the reversing roller 46. At this time, since the rotating member 56 rotates following the rotation of the reversing roller 46, the contact portion of the rotating member 56 with the medium P1 is displaced in the device height direction similarly to the contact portion R1 of the reversing roller 46.

  Here, a plurality of rotating members 56 are provided at appropriate intervals on both sides of the reversing roller 46 in the apparatus width direction. Accordingly, when the medium P1 is wound around the outer peripheral surface of the reversing roller 46 and rotates, the plurality of rotating members 56 come into contact with a part of the medium P1 to make the posture of the medium uniform in the apparatus width direction. Can be. Further, since the rotation member 56 rotates following the reversing roller 46, the transport amount of the medium P1 in the apparatus width direction can be made uniform. In the present embodiment, since the rotating member 56 rotates together with the reversing roller 46, when the medium P1 is reversed, the rotating member 56 and the medium P1 can be prevented from rubbing, and wrinkles and scratches on the medium P1 can be reduced. it can. Further, in the present embodiment, by forming the plurality of rotating members 56 integrally with the roller shaft 52, the number of components can be reduced.

  11, 13, and 17, the relief shape of the guide member 58 with respect to the reversing roller 46 and the rotating member 56 when attaching and detaching the medium reversing unit 48 will be described. A roller passage portion 58d is provided at a position corresponding to the position of the reversing roller 46 in the guide member 58 in the device width direction.

  The roller passing portion 58d has a shape cut in a concave shape from the curved portion 58b to the device rear side end along the device depth direction on the upper surface 58a of the guide member 58. The size of the roller passage portion 58d in the device width direction is set to a size that can receive the reversing roller 46. Further, as shown in FIG. 2, the roller passing portion 58d has a depth that does not interfere with the lower end portion of the reversing roller 46 in the device height direction. In the present embodiment, the roller passage portion 58d is formed between the invitation portions 58c in the device width direction.

  In FIG. 11, when the medium reversing unit 48 is attached to the apparatus main body 12, the reversing roller 46 is in contact with the driven roller 60. When the medium reversing unit 48 is removed from the apparatus main body 12 in this state, the reversing roller 46 is separated from the driven roller 60 and is pulled out from the apparatus main body 12 to the apparatus rear side through the roller passage part 58d (FIG. 13). Therefore, it is possible to avoid a problem that the reversing roller 46 is caught on the invitation portion 58c.

  Further, a rotation member passing portion 58e is formed at a position corresponding to the position of the rotation member 56 of the guide member 58 in the apparatus width direction. The rotating member passage portion 58e has a shape that is concavely cut from the curved portion 58b to the device rear side end along the device depth direction on the upper surface 58a of the guide member 58. The size of the rotation member passage portion 58e in the device width direction is set to a size that can receive the rotation member 56.

  Further, as shown in FIG. 12, the rotating member passing portion 58e has a depth that does not interfere with the lower end portion of the rotating member 56 in the apparatus height direction. In the present embodiment, the rotating member passage portion 58e is formed between the invitation portions 58c in the device width direction.

  In the present embodiment, as shown in FIG. 12, when the medium reversing section 48 is mounted on the apparatus main body 12, the rotating member passing section 58e is located on the back side of the rotating member 56. Therefore, when removing the medium reversing section 48 from the apparatus main body 12, the rotating member 56 is pulled out of the apparatus main body 12 to the apparatus rear side through the rotating member passing section 58e (FIG. 13). Therefore, it is possible to avoid a problem that the rotating member 56 is caught on the invitation portion 58c.

<<< Modification of Media Inverting Unit >>>
(1) In the present embodiment, the medium reversing unit 48 is configured to be detachable from the apparatus main body 12 as an example. However, instead of this configuration, for example, the medium reversing unit 48 can be opened and closed with respect to the apparatus main body 12. It may be configured. Specifically, a rotation axis may be provided at the lower end of the medium reversing section 48 and the medium reversing section 48 may be rotated with respect to the apparatus main body 12 using the rotation axis as a rotation fulcrum. A rotation shaft may be provided at one of the ends, and the rotation shaft may be rotated with respect to the apparatus main body 12 using the rotation shaft as a rotation fulcrum.

(2) In the present embodiment, three rotating members 56 are arranged on both sides in the device width direction of the reversing roller 46 in the medium reversing unit 48, but the number of rotating members 56 is not limited to three. Instead, the number of the rotating members 56 may be appropriately changed.

(3) In the present embodiment, the convex portion 48a for positioning the medium reversing section 48 with respect to the apparatus main body 12 is provided in the medium reversing section 48, and the concave section 12a is provided in the apparatus main body 12. A configuration in which a concave portion is provided and a convex portion is provided in the apparatus main body 12 may be adopted.

<<<< Frame structure of device body >>
14 to 16, the apparatus main body 12 includes a frame body 62 constituting the apparatus main body 12. In the present embodiment, the frame body 62 includes a center frame portion 62a, a right side frame portion 62b, and a left side frame portion 62c, which are integrally formed. In the present embodiment, the medium support portion 42 (FIGS. 2, 16, 18, 19, and 25) is formed on the upper surface of the center frame portion 62a.

  In FIG. 14, two positioning portions 62d for positioning the guide member 58 in the depth direction of the device and a fastening portion for fixing the center frame portion 62a and the guide member 58 by a fastening member (not shown) are provided on the center frame portion 62a. 62e are formed. For example, a boss is formed in the positioning portion 62d, and positioning is performed by fitting into a not-shown concave portion provided at the front end of the guide member 58 in the device depth direction.

  In FIG. 15, a left guide member attachment portion 62f is provided on a left side frame portion 62c of the frame body 62. In the present embodiment, the left guide member attaching portion 62f is formed as an opening penetrating the left side frame portion 62c in the device width direction, for example.

  In FIG. 16, the right side frame portion 62b of the frame body 62 is provided with a right guide member attaching portion 62g. In the present embodiment, the right guide member attachment portion 62g is formed as an opening that penetrates the right side frame portion 62b in the device width direction as an example. In the right side frame portion 62b, a groove 62h extends from the right guide member attaching portion 62g to the lower end of the right side frame portion 62b.

  Referring to FIG. 17, engagement portions 58 f protruding from the guide member 58 in the device width direction are formed at both ends of the guide member 58 in the device width direction.

<<<< Attachment of guide member to frame body >>>>
A method of attaching the guide member 58 to the frame body 62 will be described with reference to FIGS. In FIG. 18, first, the + X direction side end of the guide member 58 is attached to the left side frame portion 62c of the frame body 62. Specifically, in the state where the + X direction side end of the guide member 58 is inclined upward in the apparatus height direction with respect to the frame body 62, the engaging portion 58f provided at the + X direction side end is connected to the left side frame. Pass through the left guide member mounting portion 62f of the portion 62c.

  Next, in FIG. 19, the −X direction end of the guide member 58 is rotated toward the right side frame portion 62 b using the engagement portion 58 f of the guide member 58 passed through the left guide member attachment portion 62 f as a rotation fulcrum. . At this time, the engaging portion 58f provided at the -X direction end of the guide member 58 is inserted into the groove 62h of the right side frame portion 62b. When the engaging portion 58f at the −X direction end of the guide member 58 enters the groove 62h, the guide member 58 is further rotated to move the engaging portion 58f at the −X direction end along the groove 62h. Is moved to the right guide member mounting portion 62g formed at the upper end of the groove 62h.

  When the engagement portion 58f at the end in the −X direction moves to the right guide member attachment portion 62g, the guide member 58 is in a horizontal state with respect to the frame body 62 as shown in FIGS. 4, 11, and 13. In this state, the guide member 58 is moved to the front side in the device depth direction.

  Here, the left guide member attaching portion 62f and the right guide member attaching portion 62g are engaged with the engaging portion insertion opening 62j on the back side of the device and in the depth direction of the device as shown in FIGS. 15, 16, 19 and 20. And a hooked portion 62k formed on the front side of the joint insertion opening 62j. The hooked portion 62k is configured to have a smaller dimension than the engagement portion insertion opening 62j in the apparatus height direction, and is configured to be able to hook the hook-shaped engagement portion 58f.

  In FIG. 20, the state of engagement of the engagement portion 58f in the right guide member attachment portion 62g will be described as an example. Here, the engaging portion 58f has a constricted portion 58g extending in the device width direction as shown in FIGS. 17 and 20, and an eave-shaped portion formed at the tip of the constricted portion 58g and projecting from the constricted portion 58g in the device height direction. A portion 58h is provided.

  In FIG. 20, when the engaging portion 58f at the end in the −X direction of the guide member 58 is moved to the right guide member attaching portion 62g formed at the upper end of the groove 62h, the engaging portion 58f is inserted into the engaging portion. It is located in the mouth 62j. In this state, when the guide member 58 is slid to the front side in the depth direction of the apparatus, the constricted portion 58g of the engaging portion 58f enters the engaged portion 62k from the engaging portion insertion opening 62j.

  As a result, the eave-shaped portion 58h of the engaging portion 58f is located on the −X direction side of the hooked portion 62k. As a result, the eave-shaped portion 58h is hooked on the hooked portion 62k. Similarly, the engaging portion 58f at the + X direction end of the guide member 58 is also slid to the front side in the device depth direction after passing through the engaging portion insertion opening 62j of the left guide member mounting portion 62f. It will be in the state where it was hooked on hook part 62k.

  In this state, the guide member 58 and the frame body 62 are integrated by positioning the center frame portion 62a of the guide member 58 and the frame body 62 and fixing the guide member 58 with a fastening member (not shown).

  In the present embodiment, the guide member 58 is configured to connect the right side frame portion 62b and the left side frame portion 62c at the rear end of the frame body 62 in the device depth direction. Thereby, the strength of the frame body 62 can be improved. Further, since the eave-shaped portion 58h of the engaging portion 58f of the guide member 58 is configured to be hooked outside the right side frame portion 62b and the left side frame portion 62c in the device width direction, the right side frame portion in the device width direction. When a force acts in a direction to push and expand the space between the side frames 62b and the left side frame portion 62c, the space between the side frames can be maintained against this force.

<<<< Power supply unit mounting structure on left side frame >>
19, 21 to 24, the mounting structure of the power supply unit and other units in the left side frame portion 62c will be described. In FIG. 19, a flat unit disposition portion 62m is provided on the left side frame portion 62c, and around the unit disposition portion 62m, a first attachment attachment portion 62n, a second attachment attachment portion 62p, and a third attachment An attachment portion 62q is provided.

  In the unit arrangement section 62m in the present embodiment, by replacing the attachment, a unit of a different type, for example, a power supply unit, a communication unit, or the like can be arranged in combination.

  As an example, the printer 10 includes a power supply unit 64 and a communication unit 66 as shown in FIGS. The power supply unit 64 and the communication unit 66 are arranged, for example, in the unit arrangement part 62m of the left side frame part 62c. In the present embodiment, the power supply unit 64 is configured to supply power necessary for driving the printer 10. The communication unit 66 is configured as a communication unit for FAX as an example, but may be configured as a communication unit for an information network such as a LAN or the Internet.

  In this embodiment, a power supply unit attachment 68 is detachably attached to the first attachment attachment portion 62n. In the present embodiment, as shown in FIG. 21, the power supply unit 64 includes a mounting portion 64a projecting downward from the power supply unit 64 in the device height direction, and a mounting portion 64b projecting upward from the power supply unit 64 in the device height direction. , Is provided.

  In the present embodiment, the mounting portion 64a of the power supply unit 64 is fastened and attached to the power supply unit attachment 68 by a fastening member 70. In the present embodiment, the fastening member 70 is configured as a screw member or a bolt member, for example.

  On the other hand, the communication unit 66 includes an attachment portion 66a projecting upward from the communication unit 66 in the device height direction, an attachment portion 66b projecting forward in the device depth direction at the upper end of the communication unit 66, and a lower end of the communication unit 66. And a mounting portion 66c protruding forward in the device depth direction.

  The attachment portion 66a is attached to the second attachment attachment portion 62p (FIG. 19) by the fastening member 70. The attachment portion 66b is attached to the third attachment attachment portion 62q (FIG. 19) by a fastening member 70. The attachment portion 66c is attached to the attachment portion 64b of the power supply unit 64 by a fastening member 70. Thereby, the power supply unit 64 and the communication unit 66 are attached to the unit arrangement part 62m.

  23 and 24, another embodiment of the unit arranged in the unit arrangement section 62m will be described. In the present embodiment, the power supply unit 72 is arranged in the unit arrangement section 62m. The power supply unit 72 is configured to be able to supply power greater than the power of the power supply unit 64 to the apparatus main body 12 as an example. The size of the power supply unit 72 is larger than the size of the power supply unit 64.

  In this embodiment, the power supply unit 72 is supported by the first attachment mounting portion 62n without an attachment. On the other hand, a mounting attachment 74 is detachably mounted on the upper part of the power supply unit 72. The attachment attachment 74 is attached to the second attachment attachment portion 62p (FIG. 19) by the fastening member 70. That is, the power supply unit 72 is mounted on the unit arrangement portion 62m via the mounting attachment 74.

  In the frame body 62 in the present embodiment, a single unit or a plurality of units can be mounted on the unit arrangement portion 62m by exchanging a mounting attachment for mounting the unit body. As a result, the frame body 62 can be used as a common frame body in printers having different specifications, so that the number of development steps for the printers having different specifications can be reduced, and the mold period can be shortened. The number of days can be reduced.

<<<< Modification of Unit Arrangement Unit >>
In this embodiment, the left side frame portion 62c is provided with the unit arrangement portion 62m. However, instead of this configuration, the right side frame portion 62b may be provided with the unit arrangement portion 62m.

<<< About the structure of the medium support part >>>
25 to 27, the configuration of the medium support unit 42 will be described. In FIG. 25, a plurality of ribs 42a extending along the medium transport direction are formed in the medium support portion 42 at an upstream portion in the medium transport direction. The plurality of ribs 42a are arranged at appropriate intervals in the apparatus width direction.

  A plurality of ribs 42b extending along the medium transport direction are also formed on the downstream side of the medium support portion 42 in the medium transport direction. The plurality of ribs 42b are arranged at appropriate intervals in the apparatus width direction.

  A plurality of ribs 42c extending along the width direction of the apparatus are formed at an intermediate portion between the upstream portion and the downstream portion of the medium support portion 42 in the medium transport direction. The plurality of ribs 42c are arranged at appropriate intervals in the medium transport direction. In the device width direction, liquid storage portions 76 (FIG. 27) are provided at positions outside both ends of the plurality of ribs 42c of the medium support portion 42, respectively.

  In the present embodiment, the liquid storage portion 76 is configured as a concave portion in the medium support portion 42, the upper side of which is open in the apparatus height direction. A liquid absorber 78 (FIG. 27) is arranged in the liquid container 76 as an example. In the present embodiment, the plurality of liquid absorbers 78 are overlapped in the liquid container 76.

  Above the liquid container 76, a liquid container cover 80 (FIGS. 25 and 26) is detachably attached to the medium support unit 42. A plurality of ribs 80a extending in the width direction of the apparatus are formed on the upper portion of the liquid container cover 80. The plurality of ribs 80a are provided at appropriate intervals in the medium transport direction.

  In the present embodiment, the arrangement intervals of the plurality of ribs 80a in the medium transport direction correspond to the arrangement intervals of the ribs 42c in the medium support portion 42. In other words, when the liquid container cover 80 is attached to the medium support portion 42, the rib 42c and the rib 80a form a long rib extending in the device width direction. Further, in the present embodiment, the ribs 42a, 42b, 42c, and 80a are configured to support the medium P from the lower side in the apparatus height direction when the medium P is transported to the medium support unit 42.

  The printer 10 according to the present embodiment is configured to be able to perform so-called borderless printing in which printing is performed up to the edge of the medium P. In the printer 10 according to the present embodiment, the size of the medium P corresponding to borderless recording has a wide variety of specifications (for example, a medium having a size equal to or larger than a business card size).

  Of the ink ejected from the recording head 40 toward the medium P during the marginless printing, ink that has come off the edge of the medium P may land on the rib 42c or the rib 80a. In the present embodiment, since the rib 42c and the rib 80a constitute a long rib extending in the apparatus width direction, the ink that has landed on the rib 42c or the rib 80a moves along the rib 42c or the rib 80a, and the liquid container cover 80 Is moved to the end of the rib 80a in the device width direction. The ink that has moved to the end of the rib 80a in the device width direction is absorbed from the liquid container cover 80 by the liquid absorber 78 located below the liquid container cover 80.

  In the present embodiment, the liquid storage portion 76 is arranged outside the rib 42 c of the medium support portion 42, and the upper portion of the liquid storage portion 76 is covered with the liquid storage portion cover 80. Since the absorber 78 is not exposed, the accuracy of the interval between the recording head 40 and the ink landing position on the medium support portion 42 can be improved.

<<< Modification of Liquid Storage Unit >>>
In the present embodiment, a plurality of liquid absorbers 78 are superimposed on each other in the liquid container 76 to absorb and accommodate ink, but instead of this configuration, as shown in FIG. The number of the liquid absorbers 78 arranged in the liquid container 76 may be changed according to the liquid absorption capacity. Specifically, in FIG. 28, a spacer member 82 is disposed in the liquid storage section 76, and the liquid absorber 78 is lifted so as to be in contact with the bottom surface of the liquid storage section cover 80. With this configuration, even if the number of the liquid absorbers 78 is reduced, the state of being in contact with the liquid container cover 80 can be maintained, so that the permeability of the ink from the liquid container cover 80 can be maintained.

  Further, in the present embodiment, as shown in FIG. 14, the medium support section 42 and the liquid storage section 76 are formed in the center frame section 62 a of the frame body 62. By adjusting the number of the liquid absorbers 78 in the liquid storage section 76, the absorption capacity of the ink stored in the liquid storage section 76 can be adjusted. Can be a common configuration.

Further, in the present embodiment, the medium reversing unit 48 according to the present invention is applied to an ink jet printer as an example of a recording device, but may be applied to other liquid ejecting devices in general.
Here, the liquid ejecting apparatus is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile that uses an ink jet recording head and discharges ink from the recording head to perform recording on a recording medium. And a device for ejecting a liquid corresponding to the intended use from a liquid ejecting head corresponding to the ink jet recording head to a medium to be ejected corresponding to a recording medium, and adhering the liquid to the medium to be ejected.

  As a liquid ejecting head, in addition to the recording head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display and a surface emitting display (FED). Examples include an ejection head, a biological organic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  It should be noted that the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and they are also included in the scope of the present invention. Needless to say.

REFERENCE SIGNS LIST 10 printer, 12 apparatus main body, 12 a recess, 14 scanner unit, 16 discharge port, 18 operation unit, 20 discharge stacker, 22 medium transport path, 24 medium feed unit, 26 feed port, 28 medium placement unit, 30 supply Feed roller, 32 transport roller, 34 recording section, 36 discharge roller, 38 carriage, 40 recording head, 42 medium support section, 42a, 42b, 42c, 80a rib, 44 medium reversing path, 46 reversing roller, 48 medium reversing section, 48a convex portion, 50 outer path member, 51, 60 driven roller, 52 roller shaft, 54 drive gear, 56 rotating member, 58 guide member, 58a upper surface, 58b curved portion, 58c invitation portion, 58d roller passing portion, 58e rotating member Passing part, 58f engaging part, 58g constricted part, 58h eaves part, 62 frames Arm body, 62a center frame part, 62b right side frame part, 62c left side frame part, 62d positioning part, 62e fastening part, 62f left guide member attachment part, 62g right guide member attachment part, 62h groove, 62j engagement part Insertion port, 62k hooked part, 62m unit placement part, 62n first attachment attachment part, 62p second attachment attachment part, 62q third attachment attachment part, 64, 72 power supply unit, 64a, 64b, 66a, 66b, 66c Mounting part, 66 communication unit, 68 power supply unit mounting attachment, 70 fastening member, 74 mounting attachment, 76 liquid storage part, 78 liquid absorber, 80 liquid storage part cover, 82 spacer member, H1 height, P, P1 medium, R1 contact site

Claims (6)

A recording unit that performs recording on a medium conveyed in the first direction;
A medium reversing unit for reversing a medium conveyed from the recording unit in a second direction opposite to the first direction by a reversing path and sending the medium to the recording unit side,
The medium reversing unit includes a reversing roller configuring the inside of the reversing path, and an outer path member configuring the outside of the reversing path, and the reversing roller and the reversing roller with respect to an apparatus main body including the recording unit. It is possible to switch between a first state in which the outer path member is positioned at the use position and a second state in which the reversing roller and the outer path member are removed from the use position,
The apparatus main body includes a guide member that is located below the reversing roller and guides a medium to the outer path member when the medium reversing unit takes the first state,
The guiding member guides the medium to a position higher than the lower end of the reversing roller, and guides the guiding to the outer path member;
A roller passing portion that is located between the invitation portions in a medium width direction that is a direction that intersects the medium conveyance direction, and that passes through the reversing roller with the state switching of the medium reversing portion.
A recording device, characterized in that: The recording apparatus according to claim 1, wherein the reversing roller is provided on a roller shaft extending in the medium width direction,
The roller shaft is provided with a rotating member spaced from the reversing roller in the medium width direction, having a diameter larger than the diameter of the roller shaft and having a diameter equal to or less than the diameter of the reversing roller.
A recording device, characterized in that: 3. The recording apparatus according to claim 2, wherein the guide member includes a rotating member passing portion that is located between the invitation portions in the medium width direction, and through which the rotating member passes when the state of the medium reversing portion is switched. ,
A recording device, characterized in that: The recording apparatus according to any one of claims 1 to 3, wherein the guide member is provided with a driven roller that nips a medium between the reversing roller and the driven roller to rotate.
A recording device, characterized in that: 5. The recording apparatus according to claim 1, wherein the apparatus main body includes side frame portions located on both sides in the medium width direction, and a center frame portion located between the side frame portions. 6. Has a frame body integrally formed,
The guide member is attached between two side frame portions, and connects the two side frame portions at an end of the frame body in the second direction.
A recording device, characterized in that: The recording apparatus according to any one of claims 1 to 5, wherein the recording medium includes a projection on one of the apparatus main body and the medium reversing section, and the projection on the other of the apparatus main body and the medium reversing section. With a recess to enter,
When the convex portion enters the concave portion, when the medium reversing portion is in the first state, a position of the medium reversing portion with respect to the apparatus main body in the medium width direction is determined.
A recording device, characterized in that:

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