A printing apparatus can prevent a print medium from buckling during discharging. In a case in which the print conveyance speed determined by the print mode is higher than or equal to a specified speed, the print medium after printing is conveyed to a discharging tray at the print conveyance speed, and in a case in which the print conveyance speed determined by the print mode is lower than the specified speed, the print medium after printing is conveyed to the discharging tray at the specified speed increased from the print conveyance speed.

A medium transport device includes a medium transport path for transporting a medium, and a medium detection unit that detects a medium by using detection light intersecting the medium transport path. the medium detection unit is a part constituting an optical path of the detection light, and includes a first optical component positioned on a first side of the medium transport path, and a second optical component positioned on a second side with the medium transport path interposed therebetween, and the second optical component is accommodated in a recess formed in a wall face extending in a direction intersecting a path surface of the medium transport path.

There is provided a sheet post-processing device that has a first tray, outlet rollers, and a control section. The first tray holds sheets for post-processing with respect to the sheets supplied from an image forming device. The outlet rollers discharge the sheet to the first tray. The control section controls a rotational speed of the outlet rollers to be decelerated after a leading end portion of the sheet passes through the outlet rollers and before the leading end portion of the sheet comes into contact with the first tray.

A sheet conveying apparatus includes: a conveyor configured to convey a sheet along a conveyance path; and a discharge tray having a support surface for supporting the sheet discharged from the conveyor. The conveyor includes a discharge unit for discharging the sheet conveyed along the conveyance path, onto the discharge tray. The discharge tray is provided with a projection protruding upward from the support surface and elongated in a direction along a discharge direction in which the sheet is conveyed. At least a portion of the projection which has a downstream edge of the projection in the discharge direction is a movable portion changeable between a first position at which an upper end portion of the projection is farthest from the support surface and a second position which is nearer to the support surface than the first position.

A sheet conveying apparatus includes: a conveyor configured to convey a sheet along a conveyance path; and a discharge tray having a support surface for supporting the sheet discharged from the conveyor. The conveyor includes a discharge unit for discharging the sheet conveyed along the conveyance path, onto the discharge tray. The discharge tray is provided with a projection protruding upward from the support surface and elongated in a direction along a discharge direction in which the sheet is conveyed. At least a portion of the projection which has a downstream edge of the projection in the discharge direction is a movable portion changeable between a first position at which an upper end portion of the projection is farthest from the support surface and a second position which is nearer to the support surface than the first position.

A binding processing apparatus includes a pair of pressing members each including a concave-convex portion configured to form a concave part and a convex part in a recording material bundle. The concave-convex portion includes protrusion portions. Aside surface of each protrusion portion is inclined so that the protrusion portion is widened from an apex of the protrusion portion. The side surfaces of the protrusion portions of a first pressing member that is one of the pressing members and the side surfaces of the protrusion portions of a second pressing member that is the other of the pressing members intersect with each other during pressing when viewed in a column direction of the protrusion portions.

A binding processing apparatus includes a pair of pressing members each including a concave-convex portion configured to form a concave part and a convex part in a recording material bundle. The concave-convex portion includes protrusion portions. Aside surface of each protrusion portion is inclined so that the protrusion portion is widened from an apex of the protrusion portion. The side surfaces of the protrusion portions of a first pressing member that is one of the pressing members and the side surfaces of the protrusion portions of a second pressing member that is the other of the pressing members intersect with each other during pressing when viewed in a column direction of the protrusion portions.

A conveyor, including: receiving trays; a conveyance mechanism; and a support supporting the trays, wherein at least one tray except a lowermost tray is supported so as to be selectively positioned at one of a receiving position and an upper position, wherein at least one lower tray except an uppermost tray includes a protruding portion attached to a tray body so as to be selectively positioned at one of a protruding position and a retracted position, and wherein the conveyor includes a force transmitting mechanism for effectuating at least one of (a) a retracting movement of the protruding portion of one of the at least one lower tray from the protruding position to the retracted position caused by an upward movement of an adjacent upper tray disposed just above and immediately adjacent to the one of the at least one lower tray from the receiving position to the upper position.

A conveying apparatus includes: receiving trays including (i) a lowest tray, (ii) a first receiving tray different from the lowest tray, and (iii) at least one second receiving tray including one second receiving tray disposed just below the first receiving tray; a conveying mechanism; and a supporter supporting the receiving trays. The conveying apparatus further includes a transmission mechanism configured to perform at least one of: transmission of upward movement of the first receiving tray from a receiving position to an upper position, to downward movement of the one second receiving tray from the receiving position to a lower position; and transmission of the downward movement of the one second receiving tray to the upward movement of the first receiving tray.

A post-processing device includes an output unit that outputs a medium; a stacking unit on which the medium that is output is stacked; and a blow-out unit that is disposed below the output unit and that blows gas toward the medium that is output, wherein an amount of the gas blown is adjusted in accordance with a type of the medium.