The paper stacking unit includes a paper stacking section on which the paper is stacked, a paper stacking mechanism which carries the paper to the paper stacking section on which the paper is stacked, and an abutment surface on which an end of the paper is abutted. The paper stacking mechanism includes a gripper member for holding the paper and a gripper moving mechanism. The gripper member holds the paper under the first holding force in a moving range from a holding position to a stacking position, and holds the paper under the second holding force upon the abutment of the end of the paper on the abutment surface from the stacking position.

A sheet stacking apparatus includes: a sheet stacking part on which a sheet is stacked; a tilt detection sensor arranged on an upstream side in a conveying direction of the sheet of the sheet stacking part, and which detects a tail end in the conveying direction in the conveyed sheet; a pair of correction rollers arranged on a downstream side in the conveying direction of the tilt detection sensor and arranged immediately before an upstream side in the conveying direction of the sheet stacking part, and which corrects a tilt of the sheet; and a sheet holder that holds the sheet with the tilt corrected by the pair of correction rollers, and conveys and stacks the sheet on the sheet stacking part.

A sheet stacking apparatus includes: a sheet stacking part on which a sheet is stacked; a tilt detection sensor arranged on an upstream side in a conveying direction of the sheet of the sheet stacking part, and which detects a tail end in the conveying direction in the conveyed sheet; a pair of correction rollers arranged on a downstream side in the conveying direction of the tilt detection sensor and arranged immediately before an upstream side in the conveying direction of the sheet stacking part, and which corrects a tilt of the sheet; and a sheet holder that holds the sheet with the tilt corrected by the pair of correction rollers, and conveys and stacks the sheet on the sheet stacking part.

A device for overlapping sheets includes at least one blower box and a supply table. Multiple sheets are guided into a region of the blower box consecutively, in the same transport direction, and are arranged at a distance from one another on the supply table. A blower nozzle is arranged in the blower box, on the side thereof facing the supply table. A blowing direction of the blower nozzle is oriented and parallel to the supply table and against the transport direction of the sheets. The supply table is arranged below the blower box and multiple blower nozzles are arranged in the blower box, one after the other, in the transport direction of the sheets, on the side thereof facing the supply table. A respective blowing direction of the blower nozzles is oriented in parallel to the supply table, and against the transport direction of the sheets.

A device for overlapping sheets includes at least one blower box and a supply table. Multiple sheets are guided into a region of the blower box consecutively, in the same transport direction, and are arranged at a distance from one another on the supply table. A blower nozzle is arranged in the blower box, on the side thereof facing the supply table. A blowing direction of the blower nozzle is oriented and parallel to the supply table and against the transport direction of the sheets. The supply table is arranged below the blower box and multiple blower nozzles are arranged in the blower box, one after the other, in the transport direction of the sheets, on the side thereof facing the supply table. A respective blowing direction of the blower nozzles is oriented in parallel to the supply table, and against the transport direction of the sheets.

A printing press arrangement has a plurality of processing stations for processing sheets. The plurality of processing stations are arranged one after another in a transport direction of the sheets for in-line processing of the sheets. At least one of the processing stations is configured as a non-impact printing device. A transfer device, which is arranged upstream of the active region of the non-impact printing device, is provided for transferring the sheets from a first processing station, which is arranged upstream of the non-impact printing device, to the non-impact printing device. The transfer device aligns, in each case, at least one of the axial register and the circumferential register and the diagonal register of each of the sheets in register relative to the printing position of the non-impact printing device.

A printing press arrangement has a plurality of processing stations for processing sheets. The plurality of processing stations are arranged one after another in a transport direction of the sheets for in-line processing of the sheets. At least one of the processing stations is configured as a non-impact printing device. A transfer device, which is arranged upstream of the active region of the non-impact printing device, is provided for transferring the sheets from a first processing station, which is arranged upstream of the non-impact printing device, to the non-impact printing device. The transfer device aligns, in each case, at least one of the axial register and the circumferential register and the diagonal register of each of the sheets in register relative to the printing position of the non-impact printing device.

Individual fibers of a material layer are pinched within adjacent coils of a spring in the present invention by a spring-like surface carried by a moving object such as a conveyor belt, rotating drum or rotating puck. The spring coils are slightly opened to accept the individual fibers. Next the spring coils are closed to carry and transport the web of fibers. At a deposition point, the coil springs, carried by a moving object such as a conveyor belt, rotating drum or rotating puck, are opened slightly, releasing fibers and depositing the web at a desired location.

Provided is a print medium finishing apparatus including a print medium stacking plate; a stacker tray; and a print medium discharging apparatus configured to discharge, to the stacker tray, print media on the print medium stacking plate, wherein the print medium discharging apparatus includes at least one driving gear that is rotatable; a moving member configured to move linearly and curvilinearly with respect to the at least one driving gear and including a motion converting gear configured to engage the at least one driving gear and convert rotation of the at least one driving gear into a linear motion and a curvilinear motion; and a grip member configured to be moved linearly and curvilinearly by the moving member while holding the print media on the print medium stacking plate, and to place the print media on the stacker tray.

Provided is a print medium finishing apparatus including a print medium stacking plate; a stacker tray; and a print medium discharging apparatus configured to discharge, to the stacker tray, print media on the print medium stacking plate, wherein the print medium discharging apparatus includes at least one driving gear that is rotatable; a moving member configured to move linearly and curvilinearly with respect to the at least one driving gear and including a motion converting gear configured to engage the at least one driving gear and convert rotation of the at least one driving gear into a linear motion and a curvilinear motion; and a grip member configured to be moved linearly and curvilinearly by the moving member while holding the print media on the print medium stacking plate, and to place the print media on the stacker tray.