Abstract: A single tray is used to collate the printed papers from a printer. The tray is moved to different positions to receive the printed papers. Thus, the printed papers are collated into different stacks. The movement of the tray can be linear or curvilinear. The circular movement can collate the printed papers into more than two stacks.

Abstract: A sheet process apparatus includes a stapler for performing a stapling process on a sheet any a shift sheet discharge unit for performing shift sheet discharging. The shift sheet discharging discharges and stacks the sheets on a tray in a status that the sheet intended to be discharged is shifted from the sheet already put on the tray. A control unit causes the shift sheet discharge unit to perform shift sheet discharging when the stapling process by the stapler is not included in any of a previous-time job and a present-time job. The control unit also causes the shift sheet discharge unit to perform the shift sheet discharging when the stapling process by the stapler is not included in any of a previous-time job and a present-time job. In addition, the control unit also causes the shift sheet discharge unit to discharge the sheet without performing the shift sheet discharging when the stapling process by the stapler is included in at least one of the previous-time job and the present-time job.

Abstract: A sheet accommodating device including a sheet-laid tray including a processing tray and a carrying tray for laying a discharged sheet thereon, a first transporting device for moving the sheet laid on the sheet-laid tray toward an alignment reference position and a space of an aligning portion, a staple unit for stapling the aligned sheet, a second transporting device for moving the sheet(s) aligned at the alignment reference position selectively to first and second positions for sorting the sheets, a pushing member for pushing the sheet toward the processing tray for alignment, a guide member guiding a leading end of the sheet to the space of the aligning portion, a guide member moving device for moving the guide member from a sheet guide position to a sheet pushing position when the pushing member is escaped from the sheet, as well as a sheet processing system including a combination of the sheet accommodating device and an image forming apparatus.

Abstract: Sheet processing apparatus including a process tray for stacking sheets received from an image forming apparatus, a jogger for jogging the sheet stacked on the process tray at one of two jogging positions, a discharge unit for discharging the sheet stacked on the process tray, and a discharge tray for stacking the sheets discharged by the discharge unit. The sheet processing apparatus includes a stapler for stapling the sheets stacked on the process tray, and a controller for controlling the stapler to staple the sheets at a stapling position corresponding to the jogging position by the jogger.

Abstract: A collating apparatus according to the present invention comprises a plurality of paper feed trays; a paper feed section for conveying a plurality of sheets stacked on the plurality of paper feed trays one by one at predetermined timing; a collating and conveying section for collating the plurality of sheets conveyed from the respective paper feed trays of the paper feed section to provide collated matters and for conveying the collated matters to a discharge section; the discharge section for discharging the collated matters conveyed from the collating and conveying section to a stacker section; and the stacker section provided with a paper discharge tray for stacking the collated matters conveyed from the discharge section, provided with a pair of side fences positioned at both outer sides of the collated matters discharged onto the paper discharge tray and restricting an orthogonal direction to a discharge direction of the collated matters, and having a sorting unit for alternately offsetting the collated

Abstract: Newspapers and other printed matter fed from a printing press or inserting machine are generally folded or delivered in a continuous stream with the papers oriented in an overlapped or imbricated relationship. The stream of papers are received and stacked by the stacking apparatus or stacker which must operate at high speeds. The stacker orients the papers in the stacks and ejects the bundles of papers. The present invention relates to devices intended to reduce the prospects for inadvertent interference with the stacking mechanism or to reduce the potential for injury.

Abstract: Envelopes in a vertical orientation are delivered in sequence to an envelope bundling table from a sheet insertion table where sheets are inserted into envelopes. A stationary vertical wall forms a part of the envelope bundling table and the respective short ends of envelopes of a preselected bundle of envelopes successively abut it when discharged onto that table. A movably mounted vertical wall has a first deployed configuration where it is disposed parallel to the first vertical wall, between the sheet insertion table and the stationary vertical wall. When so deployed, the envelopes of a preselected bundle successively abut it and therefore do not reach the first vertical wall. Those envelopes are therefore laterally offset from envelopes of a different bundle that abut the first vertical wall. The movable vertical wall has a retracted position so that envelopes delivered to the envelope bundling table abut the first vertical wall when the second vertical wall is retracted.

Abstract: A sheet post-processing apparatus comprises a conveyer for conveying the sheets discharged from the image forming system; a conveying device for conveying the sheets discharged from the image forming system; a pair of upper trays for accommodating the sheets conveyed by the conveying devices, and being horizontally moved in order to align the sheets accommodated therein and fall down the aligned sheets; a pair of upper tray driving devices for providing a driving force to the upper trays; a transmission unit for transmitting the driving force of the upper tray driving device to the upper trays; a lower tray for loading the sheets fallen from the upper trays; and a lower tray driving device for moving the lower tray in upper and lower directions in order to retain distance between the upper trays and the lower tray within a predetermined range. Thus, the sheet post-processing apparatus can accommodate variant size sheets by mechanism consisting of simple and cheap elements.

Abstract: In a device that ejects one or more sheets of media to a moveable, remote output storage location, a method and apparatus for improving output stack quality is described. An invented stack holder holds previously-ejected sheets in place, so that the ejection of a newly-accumulated job does not cause misalignment of the stack by pushing the paper that it contacts during its movement. The preferred stack holder(s) each have an arm that extends down from a part of an accumulator and have a friction pad or area near its end. The system logic causes the stack tray to move up until the top of the output stack is sensed to be at a location that means it is abutting against the stack holder(s). In this position, the stack holder(s) place enough downward pressure on the top sheets of the output stack to hold the top sheets in place while an accumulated job is rejected onto the output stack.

Abstract: A sheet stacking apparatus includes a sheet discharging device for discharging sheets; a stacking tray for stacking sets of the sheets discharged by the sheet discharging device; a retaining tray for retaining one sheet discharging by the discharging device; a shifting device for shifting, in a direction crossing with a direction of the discharging of the sheet, the one sheet on the retaining tray; a feeding device for feeding the one sheet to the stacking tray; whereby the sets of the sheets are grouped with the sheet shifted by the shifting device.