A medium transport device includes a feeding unit that transports a medium, a stack portion that receives the medium transported by the feeding unit between a support surface for supporting the medium in an inclined posture in which a downstream side in a transport direction is directed downward and an opposing surface opposing the support surface and stacks the medium, an alignment portion that aligns a downstream end of the medium stacked in the stack portion, a paddle that is provided between the feeding unit and the alignment portion in the transport direction and moves the medium toward the alignment portion by rotating while being in contact with the medium, and a control unit that controls an operation of the paddle, in which the control unit controls the operation of the paddle according to a condition.

A medium transport device includes a feeding unit that transports a medium, a stack portion that receives the medium transported by the feeding unit between a support surface for supporting the medium in an inclined posture in which a downstream side in a transport direction is directed downward and an opposing surface opposing the support surface and stacks the medium, an alignment portion that aligns a downstream end of the medium stacked in the stack portion, a paddle that is provided between the feeding unit and the alignment portion in the transport direction and moves the medium toward the alignment portion by rotating while being in contact with the medium, and a control unit that controls an operation of the paddle, in which the control unit controls the operation of the paddle according to a condition.

A stacker device includes: a discharger that discharges sheets in response to a print job; a first tray on which the discharged sheets are stacked; a second tray that serves as a delivery destination of the sheets stacked on the first tray; a shutter that covers an opening on a front side of a housing; a driver that moves the first tray in an up-down direction; and a hardware processor that shuts off power to the driver based on a height position of the shutter and a position of the second tray in a front-rear direction.

Please add the Abstract of the Disclosure, as set forth on the separate accompanying sheet. This Abstract of the Disclosure is essentially the same, in content, as the Abstract which is a part of the published PCT application, WO 2017/202762A1. No new matter is being presented by the addition of this Abstract of the Disclosure.

A stacker device in an items processing system is a last station of a mail line. The stacker device has a receiving plate to receive flat items, a longitudinal alignment wall, graduated in at least two steps, at a rear side of the stacker device, and a stop wall that is arranged at the downstream end of the receiving plate.

A stacker device in an items processing system is a last station of a mail line. The stacker device has a receiving plate to receive flat items, a longitudinal alignment wall, graduated in at least two steps, at a rear side of the stacker device, and a stop wall that is arranged at the downstream end of the receiving plate.

A stacker device in an items processing system is a last station of a mail line. The stacker device has a receiving plate to receive flat items, a longitudinal alignment wall, graduated in at least two steps, at a rear side of the stacker device, and a stop wall that is arranged at the downstream end of the receiving plate.

A stacker device in an items processing system is a last station of a mail line. The stacker device has a receiving plate to receive flat items, a longitudinal alignment wall, graduated in at least two steps, at a rear side of the stacker device, and a stop wall that is arranged at the downstream end of the receiving plate.

An image forming apparatus includes a stacking tray on which a sheet is stacked, a cover unit, and an apparatus main body having an image forming unit. The cover unit forms a sheet storage portion storing the sheet between the cover unit and the stacking tray, and covering the sheet stacked on the stacking tray. The cover unit includes a first cover portion attached to a second cover portion that rotates about a rotating shaft at a position on a sheet rear end side in a sheet conveying direction to open and close an opening that leads to the sheet storage portion. An exterior surface of the second cover portion faces outside the sheet storage portion when the second cover portion is closed to close the opening and faces up in a vertical direction when the second cover portion is in an open state where the opening is open.

An image forming apparatus includes a stacking tray on which a sheet is stacked, a cover unit, and an apparatus main body having an image forming unit. The cover unit forms a sheet storage portion storing the sheet between the cover unit and the stacking tray, and covering the sheet stacked on the stacking tray. The cover unit includes a first cover portion attached to a second cover portion that rotates about a rotating shaft at a position on a sheet rear end side in a sheet conveying direction to open and close an opening that leads to the sheet storage portion. An exterior surface of the second cover portion faces outside the sheet storage portion when the second cover portion is closed to close the opening and faces up in a vertical direction when the second cover portion is in an open state where the opening is open.