A dual-stage rapid sheet stacking system is provided. In one embodiment, the dual-stage rapid stacker comprises a landing platform and a first actuator configured to control a vertical position of the landing platform. A vertical position sensor is configured to monitor the vertical position of the landing platform. A CPU is configured to receive a signal from the vertical position sensor and, in response to the received signal, to send a corresponding command to the first actuator such that the first actuator maintains a minimum sheet drop distance. A sliding catch tray unit, is mounted on a plurality of suspension rails. The dual-stage rapid sheet stacking system comprises a second actuator configured to receive commands from the CPU to control a horizontal position of the sliding catch tray unit. The dual-stage rapid sheet stacking system is configured to stack a plurality of sheets on the landing platform and then discharge, a plurality of sheets through the sliding catch tray unit.

A dual-stage rapid sheet stacking system is provided. In one embodiment, the dual-stage rapid stacker comprises a landing platform and a first actuator configured to control a vertical position of the landing platform. A vertical position sensor is configured to monitor the vertical position of the landing platform. A CPU is configured to receive a signal from the vertical position sensor and, in response to the received signal, to send a corresponding command to the first actuator such that the first actuator maintains a minimum sheet drop distance. A sliding catch tray unit, is mounted on a plurality of suspension rails. The dual-stage rapid sheet stacking system comprises a second actuator configured to receive commands from the CPU to control a horizontal position of the sliding catch tray unit. The dual-stage rapid sheet stacking system is configured to stack a plurality of sheets on the landing platform and then discharge, a plurality of sheets through the sliding catch tray unit.

A sheet stacking apparatus including a control portion is configured to execute: a first mode in which the control portion causes a bundle forming portion to form a bundle of sheets including a sheet supported by a first placement portion and a sheet placed on a second placement portion; and a second mode in which a downstream end portion of a bundle of sheets formed in the second mode is positioned upstream of a downstream end portion of a bundle of sheets to be formed in the first mode, and wherein the control portion sets a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the second mode to be smaller than a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the first mode.

A sheet stacking apparatus including a control portion is configured to execute: a first mode in which the control portion causes a bundle forming portion to form a bundle of sheets including a sheet supported by a first placement portion and a sheet placed on a second placement portion; and a second mode in which a downstream end portion of a bundle of sheets formed in the second mode is positioned upstream of a downstream end portion of a bundle of sheets to be formed in the first mode, and wherein the control portion sets a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the second mode to be smaller than a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the first mode.

Provided is a sheet processing apparatus, including: a placement portion to which a sheet conveyed by a conveyance portion in a conveyance direction is placed; a processing portion configured to perform predetermined processing on a sheet placed on the placement portion, and to be movable in a predetermined moving range; and a control portion configured to control the processing portion to position, at a timing at which a sheet conveyed by the conveyance portion passes through the moving range, from a first position of preventing from interfering with the sheet to a second position of performing the predetermined processing on a preceding sheet having been conveyed by the conveyance portion and placed on the placement portion before the sheet.

Provided is a sheet stacking apparatus, including: a placement on which a sheet is placed; a conveyance portion conveying a sheet placed on the placement portion; a regulation portion regulating a position of a sheet conveyed by the conveyance portion through contact with the sheet; and a pressing portion pressing a sheet regulated in position by the regulation portion, the pressing portion pressing a sheet regulated in position by the regulation portion at a first pressing position and a second pressing position, the second pressing position being spaced apart from the placement portion in a thickness direction of sheets placed on the placement portion by a distance which is larger than a distance between the placement portion and the first pressing position, in which an area of pressing a sheet at the first pressing position is larger than an area of pressing a sheet at the second pressing position.

An example system may comprise a media support including a wall and a base and a restraining extension extending in a first direction to constrain print media, when present, to a space below the restraining extension.

An example system may comprise a media support including a wall and a base and a restraining extension extending in a first direction to constrain print media, when present, to a space below the restraining extension.

A stacker includes a medium stacking portion for receiving and stacking a medium processed and discharged by a processing unit, a medium butting portion for aligning the medium by contacting a leading end of the medium, and a paddle that includes a feeding portion and is for transporting the medium received by the medium stacking portion in a direction toward the medium butting portion by rotating. Furthermore, the stacker has a first mode in which the paddle stops in a state in which the feeding portion does not contact the medium on the medium stacking portion and a second mode in which the paddle stops in a state in which the feeding portion comes into contact with the medium on the medium stacking portion and is deformed.

A stacker includes a medium stacking portion for receiving and stacking a medium processed and discharged by a processing unit, a medium butting portion for aligning the medium by contacting a leading end of the medium, and a paddle that includes a feeding portion and is for transporting the medium received by the medium stacking portion in a direction toward the medium butting portion by rotating. Furthermore, the stacker has a first mode in which the paddle stops in a state in which the feeding portion does not contact the medium on the medium stacking portion and a second mode in which the paddle stops in a state in which the feeding portion comes into contact with the medium on the medium stacking portion and is deformed.