A staple processing device includes a staple tray, a staple unit, a rear reference plate, a front reference plate, and an interlocking mechanism. The staple unit performs a staple process on a plurality of sheets loaded on the staple tray. The staple unit is movable along the ends of the sheets in a sheet width direction. The rear reference plate and the front reference plate abut the ends of the plurality of sheets and aligns the plurality of sheets. The interlocking mechanism moves the rear reference plate and the front reference plate in the sheet width direction in interlock with the movement of the staple unit.

A sheet feeding device includes a document mounting board, in which a downstream end of the document mounting board in the feeding direction of the documents in the feed mechanism is connected to a scanner body so as to be rotatable about a first turning shaft parallel to a rotation shaft of a pickup roller, the first turning shaft is located downstream from the feed mechanism in the feeding direction of the documents in the feed mechanism, a mounting surface of the document mounting board on which the documents are mounted is located above the pickup roller when the documents are mounted on the document mounting board, and the document mounting board turns about the first turning shaft such that the mounting surface moves downward and the mounting surface moves downward from a contact portion of the pickup roller with the document when the documents mounted on the document mounting board are fed.

A sheet feeder device includes: a sheet feed tray configured to store a sheet stack formed with a plurality of paper sheets; an elastic member capable of expanding and contracting; a contact mechanism configured to bring the elastic member into contact with an edge of the sheet stack; an expansion mechanism configured to expand the elastic member in a direction of stacking of the paper sheets; and a control unit configured to cause the expansion mechanism to expand the elastic member while the elastic member is kept in contact with the edge of the sheet stack by the contact mechanism.

A printer paper tray comprising a paper tray bezel, and a paper tray cassette coupled to the paper tray bezel, in which the paper tray bezel moves in the x and y direction independent of the paper tray cassette. A printer comprising a paper tray comprising a bezel coupled to a cassette in which the bezel moves independent of the cassette and is biased towards the cassette in the x direction. A bezel mounting system comprising a number of biasing members to bias a printer tray bezel towards a printer tray cassette in the x-direction, and a number of biasing pads to bias the bezel in a substantially centered position with respect to the cassette.

A media restraint for a removable media tray and slidably operable without the use of a pinching force. The media restraint slidably positionable on a track in a removable media tray and is operable without pinching. A pair of latching cams are used to engage the media restraint to the track and have serrated portions pivotally mounted to a bottom of the media restraint. The media restraint is operable by a finger of the user applying a downward force to the media restraint allowing a rack and pinion to horizontally translate a rack portion of the pair of latching cams away from the track and pivot the serrated portions away from the track and allowing the media restraint to be moved along the track. Upon removal of the downward force, a biasing member translates the latching cams back to reengage with the track.

An image recording apparatus includes: an apparatus casing in which a transport path for transporting a sheet is formed; a first sheet support unit having a first support surface configured to support the sheet; a feed unit configured to feed the sheet supported by the first support surface to the transport path; a second sheet support unit having a second support surface configured to support the sheet; a transport unit configured to transport the sheet from the first and second sheet support units via the transport path; and a recording unit configured to record an image on the sheet transported by the transport unit in the transport path. The first and second sheet support units are arranged on one side surface of the apparatus casing, and the first and second support surfaces are configured to incline with respect to a placement surface on which the apparatus casing is placed.

A media restraint for a removable media tray and slidably operable without the use of a pinching force. The media restraint slidably positionable on a track in a removable media tray and is operable without pinching. A pair of pivoting latching cams are used to engage the media restraint to the track and have serrated portions pivotally mounted to a bottom of the media restraint. The media restraint is operable by a finger of the user applying a downward force to an actuator that spreads two cam plates apart which in turn pivot the pair of latching cams to release the media restraint from the track and allowing it to be moved along the track. Upon removal of the downward force, a biasing member lifts the actuator to bring the two cam plates back to their first positions thereby pivoting the pair of latching cams back to reengage with the track.

When waiting for printing, a cam that rotates together with the rotation of a gear locks a knurl at position on the upstream side in the sheet conveyance direction, which prevents sheets from dropping down. Moreover, during printing, when the cam is rotated 180 from the locked position, the knurl is in a state capable of sliding toward the downstream side. As a result, with the force that returns the knurl to the upstream side being too small, it is possible to prevent feeding overlapping sheet due to the front end of a sheet further on the down side than a sheet being fed from dropping toward the downstream side further than the knurl.

A sheet sorting apparatus includes a discharge port through which sheets are discharged, a stacking tray on which the sheets discharged from the discharge port are stacked, a sheet sorting member provided on a stacking surface on which the sheets of the stacking tray are stacked, and an operation mechanism for operating the sheet sorting member. The sheet sorting member is provided to be able to rise from the stacking surface by employing one end of the sheet sorting member as a pivot point, at a position at which the sheets fall from the discharge port. The sheet sorting member rises from the stacking surface by the operation mechanism, thereby forming an inclined surface, guiding the sheets placed on the inclined surface along the inclined surface, and shifting the sheets stacked on the stacking tray to a discharge direction of the sheets and a direction perpendicular to the discharge direction.

A document sheet conveying device includes a sheet feed tray lift mechanism, a top plate portion, a fixed wall portion, and a lifted wall portion. The sheet feed tray lift mechanism lifts up and down a sheet feed tray. The top plate portion is adjacent to the sheet feed tray at a downstream side, in a sheet feed direction, of the sheet feed tray, and is contacted by a lower surface of a document sheet having been fed. The fixed wall portion is provided to extend downward from an upstream end, in the sheet feed direction, of the top plate portion, and the position of the fixed wall portion is fixed. The lifted wall portion extends upward from a downstream end of the sheet feed tray in the sheet feed direction and is lifted up and down along the fixed wall portion together with the sheet feed tray.