Abstract: In order to reduce the stack failure of a sheet bundle, there is provided a sheet stacking/aligning apparatus comprising: a stack tray for stacking sheets thereon; and a rear end aligning member for pushing and aligning the rear end of a sheet conveyed onto the stack tray. The rear end aligning member includes sheet holding paddle for holding the sheets stacked on the stack tray.

Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.

Abstract: In a booklet maker, as would be found in conjunction with a copier or printer, print sheets to be folded and stapled into a booklet are accumulated in a slot. At the bottom of the slot, a selectably extendable contact member presses an accumulating set of sheets against a sidewall of the slot following the entry of each new sheet into the slot. The contact member decreases curling and fluffing of sheets within the slot, which can cause imprecisions in registering, stapling, or creasing of the sheets as they are formed into a booklet.

Abstract: A stapler processing apparatus includes a paper jogging tray 6 for a collated sheet 3, a paper jogging unit 7 for jogging the collated sheet 3 by pressing it on the tray 6 by a presser jogging member 13, a stapler 8 for stapling the collated sheet 3 jogged by the paper jogging unit 7 and a paper discharging unit 9 for discharging the collated sheet 3 stapled by the stapler 6 from the tray 6. In operation, when the stapler 8 staples the collated sheet 3, it is forced to the tray 6 while making an upper driven roller 30b in close contact with a lower drive roller 30a. After stapling by the stapler 8, the paper jogging operation of the paper jogging unit 7 is stopped and the upper driven roller 30b is separated from the lower drive roller 30a to release the collated sheet 3 from it nipped state once. Subsequently, the upper driven roller 30b is brought into close contact with the lower drive roller 30a again and the discharge operation is started.

Abstract: In a sheet finisher having a stacker for sheets conveyed from an image forming apparatus and a stapler for stacked sheets, the sheet finisher further has a conveying timing adjustment section arranged upstream of the stacker including: a conveying-in section for a sheet from the image forming apparatus; a conveying-out section separately provided from the conveying-in section; and a reversal conveying section for reversing a conveying direction of the sheet conveyed in one direction from the conveying-in section and for conveying-out from the conveying-out section. A controller controls the reversal conveying section such that at least a second bundle or a bundle after the second bundle of sheet bundles to be stapled by the stapler, in which a plurality of sheets having at least a top sheet and a succeeding sheet to the top sheet are overlapped each other, is conveyed-out from the reversal conveying section.

Abstract: A sheet processing apparatus, which is configured in a simple construction and at low cost, includes a first sheet stacking portion for temporarily stacking a sheet discharged thereon, an alignment member for aligning the sheet discharged on the first sheet stacking portion, a sheet processing member for performing a predetermined process on the sheet stacked on the first sheet stacking portion, and a second sheet stacking portion located substantially vertically below the first sheet stacking portion. The alignment member acts to cause the aligned sheet to drop to the second sheet stacking portion.

Abstract: A sheet post-processing apparatus includes a head unit and an anvil unit movably disposed in a direction traversing the sheet discharge direction to provide staples into a sheet bundle. A feed path is disposed between the head unit and the anvil unit for allowing the sheet bundle to pass therethrough. The sheet bundle is moved from a stacking device to the feed path, wherein the head unit and anvil unit stitch the sheet bundle fed for a specified distance into the feed path.

Abstract: A sheet post-processing device is provided which includes a post-processing tray on which sheets of paper supplied from an image forming device are stacked, and a post-processing section for applying a post-processing operation to edges of one side of the sheets of paper stacked on the post-processing tray. The device further includes a first feed-out opening for discharging, to outside, the sheets of paper having been subject to the post-processing operation, a first discharge transport path for transporting the sheets of paper from the post-processing tray to the first feed-out opening, and a feed-out section for discharging the post-processed sheets of paper from the post-processing tray to the first discharge transport path.

Abstract: A sheet post-processing apparatus is connected to or assembled in an image forming device such as a copying machine to automatically bind recorded or copied sheets successively given from the image forming device with one or more staples upon collating, aligning and binding or punching the given sheets in the proper order of page. The finished sheets bound are finally discharged perpendicularly to a reference transferring direction in which the recorded sheet is first sent out from the image forming device so as to be discharged to a discharge unit near an operation place defined in front of the image forming device, thus to allow an operator to easily take out the bound sheets from the sheet discharge unit without moving too much.

Abstract: There is disclosed a sheet distribution device in which when sheets are discharged to each distribution bin by a sheet moving means, reduced is a period of time required for shifting to the next sheet moving operation after one sheet moving operation is finished. The sheet distribution device receives image formed sheets 2 from an image forming device 1 and distributes and stores the sheets 2 into plural distribution bins 4. The sheet distribution device is provided with a post-processing means for post-processing the sheets 2 stored in the distribution bin 4, a sheet bunch pushing member 50 for moving the sheets 2 stored in the distribution bin 4 along the guide hole 28 in the distribution bin 4 to the post-processing means, and a guide rail 41 for elevating or lowering the sheet bunch pushing member 50. When the sheet bunch pushing member 50 is moved along the guide rail 41, the sheet bunch pushing member 50 can be moved in a direction in which the engagement with the guide hole 28 is released.

Abstract: A sheet processing apparatus includes a stacking device for stacking a sheet, a delivering device for delivering the sheet to the stacking device, and a pulling device for pulling in a direction opposite to a delivery direction the sheet delivered to the stacking device. The pulling device is structured to keep approximately constant a contract pressure exerted to the topmost sheet delivered on the stacking device, and the pulling device is formed in a tapered shape whose one end is narrower than the opposite end.