A sheet discharge apparatus includes a sheet stacking portion on which a sheet discharged by a discharging portion is stacked, and a control portion configured to control a moving unit such that a height position of an uppermost sheet stacked on the sheet stacking portion becomes a first height position. In a case where a sheet detection portion detects that the height position of the uppermost sheet is above a second height position, the control portion sets a sheet discharge speed of the discharging portion to a first sheet discharge speed. In a case where the sheet detection portion detects that the height position of the uppermost sheet becomes lower than the second height position, the control portion controls the sheet discharge speed to be a second sheet discharge speed faster than the first sheet discharge speed.

A post-processing device includes a processing stacking portion that allows media to be stacked thereon; a binding member that performs a binding process on the media; a medium ejection portion on which the media ejected from the processing stacking portion are stacked and which moves upward and downward; and a pressing member that presses an upper surface of the media on the medium ejection portion. When media that have not been subjected to the binding process are stacked on the medium ejection portion, the pressing member and the media are brought into contact with each other. When media that have been subjected to the binding process are stacked on the medium ejection portion, the pressing member and the media are disposed further away from each other than when media that have not been subjected to the binding process are stacked on the medium ejection portion.

A control portion controls a distance H and/or a shift amount L1 such that a relationship of L<HL+L1 holds, where L is a length of each sheet among the sheet bundle in the conveyance direction, H is a distance from the conveyance roller pair to an end regulation member in the conveyance direction, and L1 is a shift amount between a first sheet among the sheet bundle and a second sheet adjacent the first sheet. The second sheet is conveyed toward the end regulation member by the conveyance roller pair in the state in which the leading edge of the preceding sheet is in contact with the end regulation member.

A sheet loading apparatus for carrying a sheet loaded in a first tray to a second tray includes: a grip portion configured to grip the sheet; a sliding portion configured to move the grip portion between a sheet gripping position and a sheet release position; a lift portion configured to move the grip portion and cause the grip portion to emerge from the sheet loading surface; and a common power transmission portion configured to transmit power to both the sliding portion and the lift portion, wherein in one cycle, after the sliding portion moves the grip portion to a downstream side, the lift portion moves the grip portion downward of the sheet loading surface to cause the grip portion to reach the release position, and after the sliding portion moves the grip portion to the upstream side, the lift portion moves the grip portion to the gripping position.

A sheet processing apparatus, including: a conveyance path in which a sheet is conveyed in a predetermined conveyance direction; a rotary member pair configured to nip the sheet conveyed in the conveyance path and rotate to perform folding processing on the sheet; and a guide portion provided between one rotary member of the rotary member pair and the conveyance path and configured to guide a downstream edge of a sheet conveyed in the predetermined conveyance direction, wherein, in case that a sheet is conveyed in the conveyance path in the predetermined conveyance direction, the guide portion guides a downstream edge of the sheet in the predetermined conveyance direction in a state in which the guide portion is held in contact with the one rotary member.

A sheet processing apparatus, including: a rotary member pair configured to nip a sheet conveyed in a conveyance path and rotate to fold the sheet; and a guide portion provided between one rotary member of the rotary member pair and the conveyance path, the one rotary member including: a first part; and a second part, wherein a first distance between the first part and a rotary shaft center of the one rotary member is greater than a second distance between the second part and the rotary shaft center, and wherein the guide portion is positioned at a first position in case that the second part is positioned at a first rotational position, and the guide portion is positioned at a second position different from the first position in a distance from the rotary shaft center in case that the second part is positioned at a second rotational position.

A sheet stacking apparatus includes a conveying unit, a first support member configured to support a sheet, the first support member including a first supporting surface contacting an underside of a first end portion of the sheet in a direction orthogonal to a sheet conveying direction, a second support member configured to support the sheet, the second support member including a second supporting surface contacting an underside of a second end portion of the sheet, and a stacking unit. At least one of the first support member and the second support member is capable of moving between a first position that supports the sheet and a second position that does not support the sheet, and a length of the first support member is shorter than a length of the second support member in the sheet conveying direction.

A post-processing device includes a processing stacking portion that allows media to be stacked thereon; a binding member that performs a binding process on the media; a medium ejection portion on which the media ejected from the processing stacking portion are stacked and which moves upward and downward; and a pressing member that presses an upper surface of the media on the medium ejection portion. When media that have not been subjected to the binding process are stacked on the medium ejection portion, the pressing member and the media are brought into contact with each other. When media that have been subjected to the binding process are stacked on the medium ejection portion, the pressing member and the media are disposed further away from each other than when media that have not been subjected to the binding process are stacked on the medium ejection portion.

A post-processing apparatus comprises a first processing tray on which fed paper is placed; a paper binding section configured to bind a plurality of sheets of paper stacked on the first processing tray into one bundle; a second processing tray which a plurality of paper bundles bound on the first processing tray are sequentially conveyed to and placed on; a paper bundle gluing section configured to coat glue at a given position of the top surface of a first paper bundle placed on the second processing tray before a second paper bundle is placed on the first paper bundle; a pressing section configured to press and bind the first paper bundle with the second paper bundle between which glue is coated; and a control section configured to control the timing for conveying the second paper bundle onto the first paper bundle after the glue is coated.

A sheet post-processing apparatus includes a processing tray, a shift member, a discharge tray, a discharge roller pair, and a pressing member. The shift member moves a sheet loaded on the processing tray in a sheet width direction. The discharge roller pair discharges a sheet on the processing tray onto the discharge tray. The pressing member presses down a sheet discharged onto the discharge tray. The pressing member has an arm portion which rotates in the sheet conveyance direction about a rotation fulcrum, and a roller which is attached to the arm portion to be rotatable in the sheet width direction, and the pressing member is selectively disposed in a first position where the roller presses down the upstream-side end part of a sheet discharged onto the discharge tray, or in a second position where the roller contacts a lower surface of a sheet on the processing tray.