JP2007031042A - Media stacker and recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a media stacker and a recording device equipped therewith capable of preventing separation of the join of two layers. <P>SOLUTION: The media stacker is composed of two layers as a receptacle 43 to receive media ejected and a supporting part 44 to support the receptacle, wherein the receptacle is fastened to the side face of the supporting part in the upstream in the ejecting direction by fastening parts 46 and 47. This allows the join in the width direction of the receptacle with the supporting part to be maintained in the closed condition at all times, so that the media can be stacked certainly while interference with the media ejected is eliminated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a medium stacker for loading discharged media and a recording apparatus including the medium stacker.

  In general, in an ink jet printer that is one of the recording apparatuses, a new sheet is stacked in a retractable sheet feeding tray disposed on the back side of the printer body, and one end is lifted by a hopper. Paper is drawn out by the paper feed roller and fed. The fed paper is transported by a transport roller for recording, and the recorded paper is transported by a paper discharge roller and placed on a retractable paper discharge stacker disposed on the front side of the printer main body. The paper is discharged (see Patent Document 1).

JP 2003-73007 A

  In general, the paper discharge stacker has a two-layer structure in which a plate-like receiving portion that receives a recording sheet to be discharged and a plate-like support portion that supports the receiving portion are combined. For this reason, particularly in a paper discharge stacker of an ink jet printer capable of recording a wide sheet, the matching part in the width direction of the receiving part and the support part is easily separated, and the receiving part in which the leading edge of the discharged paper is separated. There is a risk of interference. Further, in the case of a paper discharge stacker provided with an auxiliary stacker that can be taken in and out at the front end side of the stacker, there is a structure in which a stopper is applied when the auxiliary stacker is completely pulled out or pushed. When the receiving portion of the paper discharge stacker and the width-matching portion of the support portion are separated from each other, the auxiliary stacker may not be caught by the stopper.

  The present invention has been made in view of the various problems as described above, and an object of the present invention is to provide a medium stacker capable of preventing the two-layer joining portion from being separated and a recording apparatus including the medium stacker. There is.

  In order to achieve the above object, the medium stacker of the present invention is a medium stacker for loading discharged media, and is composed of two layers of a receiving part for receiving the medium and a supporting part for supporting the receiving part, The receiving portion and the support portion are characterized in that the upstream side surface in the discharge direction is locked by a locking portion. As a result, it is possible to always keep the width direction matching portion of the receiving part and the support part in a closed state, so that the medium can be reliably loaded without interference with the discharged medium.

  Further, the auxiliary stacker is built in between the receiving portion and the support portion and can be inserted and removed at the downstream side in the discharging direction. As a result, the auxiliary stacker is always caught by the stopper, so that the storage / drawing position of the auxiliary stacker can be accurately positioned. Moreover, the said latching | locking part is equipped with the nail | claw and the hole which this nail | claw hangs over, It is characterized by the above-mentioned. Thereby, since the latching | locking part can be made into a simple structure, the raise of component cost can be suppressed. The medium discharge unit is configured to be rotatable. Thereby, the rotation failure by the separation | spacing of the alignment part of the width direction of a receiving part and a support part can be prevented.

  To achieve the above object, the recording apparatus of the present invention is a recording apparatus that conveys and records a recording medium, and includes the above-described medium stackers. Thereby, it is possible to provide a recording apparatus that exhibits the above-described effects.

  Embodiments of the present invention will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all the combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. Absent.

  FIG. 1 is a perspective view showing the entire external configuration of an ink jet printer that is one of recording apparatuses according to an embodiment of the present invention, FIG. 2 is a perspective view showing its internal structure, and FIG. It is a schematic side view which shows an internal structure. The ink jet printer 100 includes, for example, business cards, cards, L / 2L size, postcards, six cuts, JIS standard A6 size to A4 size cut paper, and CD-R (Compact Disc-Recordable), for example. And a function capable of recording on the label surface of an optical disc such as a DVD-R (Digital Versatile Disc-Recordable).

  As shown in FIG. 1, the ink jet printer 100 is entirely covered with a substantially rectangular parallelepiped housing 101. An operation unit 110 is disposed on the front side of the upper surface of the housing 101, a memory card slot 120 is disposed on the right side of the front surface of the housing 101, and a paper feeding unit 130 is disposed on the rear side of the upper surface. On the front side, a paper discharge unit 140 including a characteristic portion of the present invention is disposed. Further, as shown in FIGS. 2 and 3, a disc transport unit 200 is disposed inside the paper discharge unit 140.

  As shown in FIG. 1, the operation unit 110 includes a substantially rectangular operation panel 111, and a liquid crystal panel 112 that displays an operation state or the like is disposed at a substantially central portion of the operation panel 111. Buttons 113 such as a power system for turning on / off the power, an operation system for operating the cueing of a sheet or a cleaning of a recording head, a processing system for performing image processing, and the like are disposed on both sides. Since the user can operate the button 113 while checking the liquid crystal panel 112 for confirmation, an erroneous operation can be prevented.

  As shown in FIG. 1, the memory card slot 120 is covered with a cover 121 that can be opened and closed in the direction of the arrow a. The memory card slot portion 120 is formed, for example, with 5 slots, and is configured to support 13 types of memory cards. Even if the user does not connect the ink jet printer 100 to a personal computer, the user simply inserts the memory card into the memory card slot 120 in a state of the ink jet printer 100 alone, and records an image or the like stored in the memory card. be able to.

  As shown in FIG. 1, the paper supply unit 130 has a function of opening and closing a paper supply port 131 that opens upward in a rectangular shape and a function of supporting one or a plurality of papers to be supplied. 132 is provided. The paper support 132 is attached so as to be rotatable in the direction of the arrow b shown in the figure around the rotation axis at the rear end. When the user uses or does not use the inkjet printer 100, the user inserts a finger into the hole 133 provided in the housing 101 on the left side of the paper support 132 and opens and closes the paper support 132 with the left side of the paper support 132 shown. Therefore, it is possible to easily insert a sheet, and to prevent dust from entering the sheet feeding port 131.

  As shown in FIG. 2, the paper support 132 includes a first support 31 and a second support 32 that support the back surface of the paper, a fixed edge guide 33 that guides both side edges of the paper, a movable edge guide 34, and the like. ing. The first support 31 is formed in a flat plate shape and is attached so as to be rotatable in the direction of the arrow b shown in the drawing with the rotation axis at the rear end as a center. The second support 32 is formed in a flat plate shape and is disposed in the first support 31 so as to be retractable and retractable. As a result, various sizes of paper can be reliably supported during use, and when not in use, the second support 32 is stored in the first support 31, and the first support 31 is placed over the paper feed slot 131. It can be stored compactly.

  The fixed edge guide 33 is formed integrally with the hopper 51 in a shape along the right side wall in the figure, and the movable edge guide 34 is formed in a shape along the left side wall in the figure, and the rear wall is substantially between the left side wall and the right side wall. It is attached so that it can move in parallel. Since the fixed edge guide 33 and the movable edge guide 34 can reliably guide both side edges of the paper even if the paper sizes are different, the feeding can be performed with high accuracy.

  As shown in FIG. 1, the paper discharge unit 140 is a book having a function of opening and closing a paper discharge port 141 that opens in a rectangular shape toward the front and a function of stacking one or a plurality of paper to be discharged. A stacker (medium stacker) 142 which is a characteristic part of the invention is provided. The stacker 142 is attached so as to be rotatable in the direction of the arrow c in the figure around the rotation axis at the lower end. When the user uses or does not use the ink jet printer 100, the user can open and close the stacker 142 by placing a finger on the handle 143 provided on the top of the stacker 142, so that the setting can be easily performed. In addition, dust can be prevented from entering the paper discharge outlet 141. Further, since the recorded paper is always discharged from the front side, the user can easily take out the paper.

  As shown in FIG. 2, the stacker 142 includes a first stacker 41 and a second stacker (auxiliary stacker) 42. The first stacker 41 is formed in a flat plate shape, and is attached so as to be rotatable in the direction of the arrow c in the figure around the rotation shaft at the rear end. The second stacker 42 is formed in a flat plate shape and is disposed in the first stacker 41 so as to be retractable and retractable. As a result, sheets of paper of various sizes can be stacked and placed reliably when in use, and the second stacker 42 is stored in the first stacker 41 and the first stacker 41 is discharged when not in use. Since it covers the paper mouth 141, it can be stored compactly. Details of the stacker 142, which is a characteristic part of the present invention, will be described later.

  Inside the ink jet printer 100, as shown in FIGS. 2 and 3, a paper transport unit 150, a recording unit 160, and a disk transport unit 200 are disposed. The paper transport unit 150 is disposed from the paper feed unit 130 to the paper discharge unit 140 and includes an automatic paper feed mechanism 151, a transport mechanism 152, and a paper discharge mechanism 153. The automatic paper feed mechanism 151 is a hopper 51 that lifts up the paper supported by the paper support 132, a paper feed roller 52 that picks up the paper lifted by the hopper 51, and multi-feed by the paper feed roller 52. A separation pad 53 for separating the separated paper into only one sheet is provided.

  The hopper 51 is formed in a flat plate shape on which paper can be placed, and is disposed substantially parallel to the rear wall. The lower end is located near the paper feed roller 52 and the upper end is located near the top of the rear wall. It is arranged to do. The hopper 51 is attached such that the other end of a compression spring (not shown) having one end attached to the rear wall is attached to the back surface on the lower end side, and the lower end side turns around the upper end side by expansion and contraction of the compression spring. It is installed.

  The paper feed roller 52 is formed in a D shape with a part of the cross-section cut away, and is disposed in the vicinity of the lower end of the hopper 51. The paper feed roller 52 rotates intermittently and frictionally feeds the paper lifted by the hopper 51. It is supposed to send. The separation pad 53 is disposed so as to be in contact with the paper feed roller 52, and when the paper is fed by the paper feed roller 52, only the uppermost paper is frictionally separated from the lower paper. Yes.

  The transport mechanism 152 is provided with a paper feed roller 55 that feeds paper in the sub-scanning direction in synchronization with the recording operation, a driven roller 56, and the like. The paper feed roller 55 is arranged on the upstream side of the transport of the platen 163, and sandwiches the paper fed by the paper feed roller 52 together with the driven roller 56 and feeds it to the platen 163.

  The paper discharge mechanism 153 includes a paper discharge roller 57, a first jagged roller 58a, a second jagged roller 58b, and the like. The first knurled roller 58a is disposed on the downstream side of the platen 163 in conveyance, and the second jagged roller 58b and the paper discharge roller 57 are disposed on the downstream side of conveyance of the first jagged roller 58a, and pass through the platen 163. The incoming paper is first discharged by the first jagged roller 58a, and then is nipped by the second jagged roller 58b and the paper discharge roller 57 and discharged onto the stacker 142. The first and second serrated rollers 58a and 58b are held by the same holding member 59.

  The recording unit 160 includes a carriage 161 that moves in the main scanning direction in synchronization with the recording operation, a recording head 162 that ejects ink in synchronization with the recording operation, and a platen 163 that holds the recording paper flat. Has been. The carriage 161 is inserted into the carriage guide shaft 164 above the platen 163 and connected to the carriage belt 165. When the carriage belt 165 is actuated by a carriage motor (not shown), the carriage 161 is entrained in the movement of the carriage belt 165, and the carriage guide. It is guided by the shaft 164 so as to reciprocate. The carriage 161 is formed with a cartridge housing portion 61 into which a plurality of ink cartridges can be inserted and removed.

  The recording head 162 is mounted on the carriage 161 at a predetermined distance from the platen 163. For example, the recording head for black ink that discharges black ink, and five colors of yellow, cyan, light cyan, magenta, and light magenta. And a plurality of color ink recording heads for ejecting the respective inks. The recording head 162 is provided with a pressure generating chamber and a nozzle opening connected to the pressure generating chamber. The size of the recording head 162 is controlled from the nozzle opening toward the sheet by storing ink in the pressure generating chamber and pressurizing the ink with a predetermined pressure. Ink droplets are discharged.

  An operation when recording on a sheet in such a configuration will be described. The user stores a plurality of sheets before recording in the paper support 132 and activates the ink jet printer 100. The lower end of the paper stacked and stored in the paper support 132 is lifted by the hopper 51 and brought into contact with the paper feed roller 52. At the same time, the paper is fed by the paper feed roller 52 and, at the same time, only the uppermost paper is frictionally separated and fed by the separation pad 53.

  The uppermost sheet is skewed and cueed, and is nipped by the sheet feed roller 55 and its driven roller 56 and fed to the platen 163. The sheet is recorded by a recording head 162 mounted on a carriage 161 scanned by a carriage motor and a carriage belt 165. At this time, the control unit of the ink jet printer 100 supplies each color ink from a total of six color ink cartridges, for example, yellow, magenta, light magenta, cyan, light cyan, and black, to the recording head 162, and discharge timing of each color ink and carriage 161 and the paper feed roller 55 are controlled to execute highly accurate ink dot control, halftone processing, and the like. Then, the recording-completed paper is sandwiched and placed on the stacker 142 by being sandwiched by the first discharge roller 57 and the second protrusion roller 58b from the first protrusion roller 58a. Next, the stacker 142 which is a characteristic part of the present invention will be further described with reference to the drawings.

  4 and 5 are perspective views of the stacker 142 as viewed from the upstream side in the paper discharge direction. The first stacker 41 is composed of two layers in which a receiving portion 43 that receives and stacks discharged paper and a support portion 44 that supports the receiving portion 43 are combined. The second stacker 42 is sandwiched between the receiving portion 43 and the support portion 44 and can be stored / drawn from the opening 45 on the downstream side of the paper discharge. When the size of the discharged paper is small, the stacker 142 is used with the second stacker 42 stored in the first stacker 41 as shown in FIG. 4, and the size of the discharged paper is large. At this time, as shown in FIG. 5, the second stacker 42 is used while being pulled out from the first stacker 41.

  6 is an exploded perspective view of the stacker 142 shown in FIG. 4, and FIG. 7 is a perspective view showing the inner surface side of the receiving portion 43 of the first stacker 41 shown in FIG. The downstream side of the receiving portion 43 of the first stacker 41 in the paper discharge direction, that is, the substantially central end on the opening 45 side is cut out so that the end of the second stacker 42 on the downstream side in the paper discharge direction is exposed. The user picks the end of the second stacker 42 peeking from the notch with a finger and pulls out the second stacker 42 from the opening 45 of the first stacker 41 or stores it in the opening 45.

  In addition, six engaging portions 43a are formed in each side in the width direction of the receiving portion 43 of the first stacker 41 to be engaged when the support portions 44 of the first stacker 41 are combined. An engaging portion 44a for engaging when the receiving portion 43 of the first stacker 41 is also matched inside the both sides in the width direction of the support portion 44 of the first stacker 41 corresponds to the engaging portion 43a. Six locations are formed at each position. These engaging portions 43a and 44a are formed in an L-shape that meshes with each other and engage with each other.

  Further, as a characteristic part of the present invention, the support portion 44 of the first stacker 41 is aligned with the upstream side in the paper discharge direction of the receiving portion 43 of the first stacker 41, that is, the side surface 43b opposite to the opening 45. Two locking portions (claws) 46 are formed to be locked at the time. Further, a latch for engaging the receiving portion 43 of the first stacker 41 with the upstream side in the sheet discharge direction of the support portion 44 of the first stacker 41, that is, the side surface 44 b opposite to the opening 45. Two stop portions (holes) 47 are formed at positions corresponding to the locking portions 46.

  The locking portion 46 of the receiving portion 43 of the first stacker 41 is formed in a protruding shape that protrudes inward from the side surface 43b. The locking portion 47 of the support portion 44 of the first stacker 41 is formed in a gate shape protruding upward from the side surface 44b. Such a locking part 46 of the receiving part 43 and a locking part 47 of the support part 44 are locked by inserting a protruding claw into a gate-shaped hole.

  A pair of stoppers 48 are formed on both ends of the upstream end of the second stacker 42 in the paper discharge direction to perform positioning when the second stacker 42 is retracted from the opening 45 of the first stacker 41. Has been. In addition, a pair of guide members 42a are formed on both side surfaces on the upstream side in the paper discharge direction of the second stacker 42. Has been. Further, inside the pair of stoppers 48 at the upstream end of the second stacker 42 in the paper discharge direction, it serves as a guide for storing and withdrawing the second stacker 42 with respect to the opening 45 of the first stacker 41. A pair of guide grooves 42b is formed.

  And in the center inside of the support part 44 of the 1st stacker 41, the space which stores the 2nd stacker 42, and the guide at the time of drawing out are formed. That is, inside the center of the support portion 44 of the first stacker 41, a pair of first guide walls 44c extending from the opening 45 to the side surface 44b in the paper discharge direction for contacting and guiding the guide member 42a. The second stacker 42 is formed with an interval substantially the same as the width of the second stacker 42.

  Further, inside the pair of first guide walls 44c, a pair of second guide walls 44d extending from the opening 45 to the side surface 44b in the paper discharge direction for guiding and guiding the guide groove 42b. The guide grooves 42b are spaced apart from each other. The stopper 48 is interposed between the pair of first guide walls 44c and the pair of second guide walls 44d when the second stacker 42 is stored / drawn from the opening 45 of the first stacker 41. A pair of stopper walls 49a and 49b that extend short in the paper discharge direction for positioning at the storage / drawing positions are formed.

  The stopper 48 of the second stacker 42 protrudes downward from the sheet receiving surface of the second stacker 42 in a substantially L-shaped cantilever shape, and the free end side is elastically deformed up and down. . On the other hand, the stopper wall 49a of the first stacker 41 is formed at a position that interferes with the free end of the stopper 48 in the vicinity of the opening 45, and the stopper wall 49b is a position that interferes with the free end of the stopper 48 near the side face 44b. Is formed.

  When assembling the stacker 142 having such a configuration, as shown in FIG. 8, first, the second stacker 42 is housed in the space inside the center of the support portion 44 of the first stacker 41. At this time, the free end of each stopper 48 is positioned on the side surface 44b side beyond each stopper wall 49b, each guide member 42a is in contact with each first guide wall 44c, and each guide groove 42b is each second groove. Fit into the guide wall 44d. Accordingly, the second stacker 42 is positioned at the storage position of the first stacker 41 because the free ends of the stoppers 48 are locked to the stopper walls 49b.

  Next, the receiving portion 43 of the first stacker 41 is put on the support portion 44 of the first stacker 41 in which the second stacker 42 is accommodated. At this time, the receiving portion 43 is slightly shifted toward the side surface 44 b of the support portion 44. Thereby, each engaging part 43a, 44a and each latching | locking part 46, 47 will be opposingly arranged so that it can mutually fit. And the receiving part 43 is slid along the support part 44 to the opening part 45 side, and each engaging part 43a, 44a and each latching | locking part 46, 47 are mutually fitted.

  At this time, as shown in FIG. 9, since the protruding claw of the locking portion 46 is inserted into the gate-shaped hole of the locking portion 47, the side surface 43 b of the receiving portion 43 and the side surface 44 b of the support portion 44 are It will be firmly joined. Accordingly, since the discharged paper does not interfere with the receiving portion 43 and the like, high recording accuracy and high discharge accuracy can be maintained, and ink contamination of the paper due to contact with the recording head 162 can be prevented. can do.

  When the second stacker 42 of the stacker 142 assembled as described above is stored in the first stacker 41, as shown in FIG. 8, the side surface of the free end of each stopper 48 beyond each stopper wall 49b. Since it is in a locked state on the side of 44b, it is positioned and locked at the storage position of the first stacker 41 without rattling. Since the side surface 43b of the receiving portion 43 and the side surface 44b of the support portion 44 are not separated from each other, when the free ends of the stoppers 48 are locked on the side surface 44b side beyond the stopper walls 49b, the user Can obtain an appropriate click feeling and can improve the sharpness.

  Further, in the state pulled out from the first stacker 41, as shown in FIG. 10, the free end of each stopper 48 is locked on the opening 45 side beyond each stopper wall 49a. The positioning is locked without rattling at the drawing position of one stacker 41. And since the side surface 43b of the receiving portion 43 and the side surface 44b of the support portion 44 are not separated from each other, even when the free ends of the stoppers 48 are locked on the opening 45 side beyond the stopper walls 49a, The user can obtain an appropriate click feeling and improve the sharpness.

  Further, when the second stacker 42 is pulled out from the first stacker 41 or when the second stacker 42 is pushed into the first stacker 41, each guide member 42a uses each first guide wall 44c as a guide, and further each guide groove. Since each of the second guide walls 44d serves as a guide, 42b prevents the entire stack on both side surfaces of the second stacker 42, prevents galling, and allows the second stacker 42 to slide smoothly. Since the side surface 43b of the receiving portion 43 and the side surface 44b of the support portion 44 are not separated from each other, when the second stacker 42 is pulled out from the first stacker 41, the second stacker 42 is pulled out from the first stacker 41. Can be avoided.

  As described above, according to the present embodiment, the receiving portion 43 of the first stacker 41 and the side surfaces 43b, 44b on the upstream side in the discharge direction of the support portion 44 are locked by the locking portions 46, 47. It is possible to always keep the width direction matching portion of the portion 43 and the support portion 44 in a closed state, and it is possible to reliably stack the sheets without interference with the discharged sheets. Further, the stopper 48 of the second stacker 42, which is built in between the receiving portion 43 and the support portion 44 and can be freely inserted / removed on the downstream side in the discharging direction, is always caught on the stopper walls 49a, 49b. The storage / drawing position of the two stackers 42 can be accurately positioned. Moreover, since the latching | locking parts 46 and 47 are the simple structures provided with the nail | claw and the hole which this nail | claw hangs, the raise of component cost can be suppressed. Further, it is possible to prevent the rotation failure in the paper discharge unit 140 of the stacker 142 due to the separation of the matching portions of the receiving unit 43 and the support unit 44 in the width direction.

  Any recording apparatus provided with a medium stacker can be applied to, for example, a facsimile apparatus, a copying apparatus, a scanner, and the like. In addition to a recording apparatus, the meaning of a liquid ejecting apparatus that ejects a liquid corresponding to its use from a liquid ejecting head onto an ejected medium instead of ink and attaches the liquid to the ejected medium is, for example, a liquid crystal display or the like Color material jet head used for manufacturing color filters, electrode material (conductive paste) jet head used for electrode formation for organic EL display and surface emitting display (FED), bio-organic jet head used for biochip manufacturing, precision pipette The present invention can also be applied to an apparatus equipped with a sample ejection head or the like.

1 is a perspective view showing an overall appearance configuration of an ink jet printer that is one of recording apparatuses according to an embodiment of the present invention. FIG. 2 is a perspective view showing an internal structure of the printer of FIG. 1. It is a schematic side view which shows the internal structure of the printer of FIG. FIG. 2 is a first perspective view of the printer stacker of FIG. 1 as viewed from the upstream side in the paper discharge direction. FIG. 4 is a second perspective view of the printer stacker of FIG. 1 as viewed from the upstream side in the paper discharge direction. It is a disassembled perspective view of the stacker shown in FIG. It is a perspective view which shows the inner surface side of the receiving part of the 1st stacker shown in FIG. It is a perspective view which shows the state which accommodated the 2nd stacker in the space inside the center of the support part of the 1st stacker shown in FIG. It is a cross-sectional side view of the stacker shown in FIG. It is a perspective view which shows the state which pulled out the 2nd stacker from the 1st stacker shown in FIG.

Explanation of symbols

41 1st stacker, 42 2nd stacker, 42a guide member, 42b guide groove, 43 receiving part, 44 support part, 43a, 44a engaging part, 43b, 44b side face, 44c, 44d guide wall, 45 opening part, 46, 47 Stopper, 48 Stopper, 49a, 49b Stopper wall, 55 Paper feed roller, 56 Driven roller, 57 Paper discharge roller, 100 Inkjet printer, 110 Operation part, 120 Memory card slot part, 130 Paper feed part, 140 Ejection Paper unit, 141 paper discharge port, 142 stacker, 150 paper transport unit, 151 automatic paper feed mechanism, 152 transport mechanism, 153 paper discharge mechanism, 160 recording unit, 200 disk transport unit

Claims (5)

A media stacker for loading ejected media,
It is composed of two layers of a receiving part for receiving the medium and a supporting part for supporting the receiving part,
A medium stacker, wherein a side surface on the upstream side in the discharge direction of the receiving portion and the support portion is locked by a locking portion. The medium stacker according to claim 1, further comprising an auxiliary stacker that is built in between the receiving portion and the support portion and that can be inserted and removed on the downstream side in the discharging direction. The medium stacker according to claim 1, wherein the locking portion includes a claw and a hole through which the claw is hooked. The medium stacker according to any one of claims 1 to 3, wherein the medium stacker is configured to be rotatable at a discharge portion of the medium. A recording apparatus for conveying and recording a recording medium,
A recording apparatus comprising the medium stacker according to claim 1.

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