A scanner includes a reading section configured to read a medium being transported, a discharge roller pair configured to nip the medium read in the reading section by a first roller and a second roller and discharge the medium, and a rib disposed in a position overlapping the discharge roller pair in a medium transport direction, the rib protruding from the first roller side toward the second roller side out of the first roller and the second roller, the rib including a first rib disposed on one side in a width direction intersecting the medium transport direction with respect to the discharge roller pair and a second rib disposed on the opposite side of the first rib in the width direction with respect to the discharge roller pair.

A scanner includes a reading section configured to read a medium being transported, a discharge roller pair configured to nip the medium read in the reading section by a first roller and a second roller and discharge the medium, and a rib disposed in a position overlapping the discharge roller pair in a medium transport direction, the rib protruding from the first roller side toward the second roller side out of the first roller and the second roller, the rib including a first rib disposed on one side in a width direction intersecting the medium transport direction with respect to the discharge roller pair and a second rib disposed on the opposite side of the first rib in the width direction with respect to the discharge roller pair.

An image forming apparatus includes a sheet conveyance passage, an image forming apparatus, a sheet discharge unit, an apparatus body, a sheet discharge port, a pair of sheet pressing members, a discharge tray, and an overhang portion. The image forming unit includes an image carrying member. The sheet discharge unit is disposed above the image forming unit. The sheet discharge port is provided in the sheet discharge unit and has an upper edge and a lower edge. The pair of sheet pressing members press the sheet passing through the sheet discharge port. The overhang portion protrudes from the upper edge of the sheet discharge port in the sheet discharge direction beyond the lower edge. The overhang portion is disposed such that the straight line passing through the distal end of the overhang portion and the lower edge of the sheet discharge port passes above the image carrying member.

A conveyance device includes a plurality of pairs of rotators and a conveyance path. The pairs of rotators include first rotators disposed adjacent to a reverse side of a liquid-adhered surface of a sheet and second rotators disposed adjacent to the liquid-adhered surface. The second rotators have protrusions. Each pair of rotators includes one first rotator and two or more second rotators. The conveyance path includes at least one curved conveyance portion. The pairs of rotators are disposed at intervals on the conveyance path in a conveyance direction. The one first rotator and the two or more second rotators in at least one of the pairs are disposed in contact with each other. The number of the two or more second rotators arranged in a sheet width direction is larger in an upstream portion than in a downstream portion of the conveyance path in the conveyance direction.

A sheet discharging apparatus includes a guide member configured to guide a lower surface of a sheet, a discharge roller pair, a stacking portion, and a first moving member and a second moving member each configured to move to a first position and a second position, the first position being a position where the first moving member and the second moving member protrude downstream of the discharge roller pair in the sheet discharge direction, the second position being a position located upstream of the first position in the sheet discharge direction. Support portions of the first moving member and the second moving member in the first position protrude upward in a height direction with respect to a tangent of a lower roller of the discharge roller pair when viewed in a sheet width direction.

A medium-transporting device includes: a medium-support section that has a first mounting surface inclined relative to a horizontal plane; a transport path for transporting a medium; a discharge stacker that is configured to switch between an extended state in which a second mounting surface that is inclined relative to the horizontal plane and that receives the medium discharged along the transport path is formed and a stored state in which the second mounting surface is stored in the medium-transporting device, a control section is configured to perform first control of switching the discharge stacker from the extended state to the stored state after the medium is discharged to the second mounting surface and second control of not switching the discharge stacker from the extended state to the stored state such that the medium remains mounted on the second mounting surface.

A post-processing apparatus includes memory and a processor configured to control a curving device that curves a sheet, which is transported to the curving device, by pressing the sheet, control folding processing that is performed on a sheet curved by the curving device, and control, when folding processing is performed such that two ends of a sheet in a transport direction of the sheet face outward in opposite directions after the folding processing has been performed on the sheet, the curving device so as to curve the sheet in plural directions with respect to a transport surface.

A post-processing apparatus includes memory and a processor configured to control a curving device that curves a sheet, which is transported to the curving device, by pressing the sheet, control folding processing that is performed on a sheet curved by the curving device, and control, when folding processing is performed such that two ends of a sheet in a transport direction of the sheet face outward in opposite directions after the folding processing has been performed on the sheet, the curving device so as to curve the sheet in plural directions with respect to a transport surface.

A paper ejection device includes: an ejection portion that ejects sheets of paper; a housing portion that houses the ejected sheets of paper in a sequentially stacked state; and a guiding portion that guides the sheets of paper, before being ejected, to the ejection portion while curving the sheets of paper. The housing portion is adjustable to plural angles including at least an angle at which the ejected sheets of paper are housed while being curved in a direction opposite to a direction in which the sheets of paper have been curved by the guiding portion.

A sheet discharging apparatus includes a first detecting portion provided in an apparatus body and configured to detect a move of a movable member in a state where a movable tray is at an upper limit position in a moving direction of the movable tray, wherein a detection result of the first detecting portion changes depending on a position of the movable tray in the moving direction. In addition, a second detecting portion detects the position of the movable tray in the moving direction, and a control portion, in a case where the second detecting portion detects that the movable tray is at the upper limit position, determines whether a sheet is present on the movable tray based on the detection result of the first detecting portion. When the second detecting portion does not detect that the movable tray is at the upper limit position, the control portion determines that a sheet is present on the movable tray regardless of the detection result of the first detecting portion.