| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 270580170 | With edge aligner | 14 |
| 20080258373 | Post-processing apparatus and image forming system - A post-processing apparatus including a conveyance unit containing a stacker for storing a plurality of sheets placed one on top of the other and a conveyance path having a curvature for ejecting a plurality of sheets placed one on top of the other in the stacker and a control section for controlling conveyance of sheets, wherein the control section controls aligning the plurality of sheets in the conveyance unit, feeding a plurality of sheets placed one on top of the other to a roller through the conveyance path having a curvature, driving the conveyance roller so as to feed the plurality of sheets, hitting the sheet ends against a stopper so as to align the sheet ends, further conveying the sheets with the ends aligned until a loop is formed on sheets, and punching the sheets using by a punching section subsequent to formation of the loop. | 10-23-2008 |
| 20090115118 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A sheet processing apparatus has: a plurality of conveying paths which convey sheets; and front and back aligning members which perform width alignment in the direction which crosses the sheet conveying direction of the sheets conveyed from the conveying paths. Standby positions when the front and back aligning members approach side edges of the sheets from the standby positions and perform the width alignment of the sheets at the width aligning position are made different every sheet on the basis of discharge position information of the sheets to the plurality of conveying paths. | 05-07-2009 |
| 20090256302 | SHEET POST-PROCESSING UNIT AND IMAGE FORMING APPARATUS - There is provided a sheet post-processing unit having a simple structure, capable of stably conveying sheets on a tray and causing less ruggedness in conveying and aligning the sheets discharged one after another to the tray to form a bundle of sheets and to staple it. The sheet post-processing unit is provided with sheet conveying means for conveying the sheet stacked on the post-processing tray in the same and reverse directions with/from the sheet conveying direction and intersectional moving means for conveying the sheet in the direction orthogonal to the sheet conveying direction by moving the sheet conveying means in the direction orthogonal to the sheet conveying direction. It conveys the sheet while keeping rollers of the sheet conveying means in contact with the sheet and aligns the sheet by hitting the trailing edge thereof against a trailing edge stopper and by hitting the side edge of thereof against a wall by moving the rollers in the intersecting direction. In aligning the sheet by hitting the edges thereof against the stopper or the wall, the unit conveys the sheet slightly more than an actual extent of movement thereof obtained from the specific size of the sheet and slides the rollers on the sheet after hitting the sheet against the stopper or the wall. | 10-15-2009 |
| 20090315243 | SHEET FINISHER AND IMAGE FORMING SYSTEM EQUIPPED THEREWITH - A sheet finisher connected to an image forming apparatus, includes: an aligning unit having an aligning plate which aligns in a primary scanning direction a recording sheet that has been conveyed from the apparatus; and a controller which receives any one of correction information of an image forming position and detection information of a recording sheet edge for each sheet feed tray on a side of the apparatus, and determines an alignment position by referring to any one of the information. | 12-24-2009 |
| 20100078868 | SHEET PROCESSING APPARATUS - A sheet processing apparatus capable of reliably superposing a sheet to be buffered and a following sheet in a manner displaced by an allowable displacement amount, thereby making it possible to suppress generation of misalignment. A sheet discharged from an image forming apparatus is temporarily held back, and a following sheet is superposed on the held-back sheet in a state displaced in a conveying direction. A length in the conveying direction of the sheet to be held back and a length in the conveying direction of a sheet bundle of the superposed sheets are measured. A displacement amount provided between the superposed sheets, computed as a difference between the measured length of the sheet and the measured length of the sheet bundle, is adjusted such that the displacement amount becomes a target displacement amount. | 04-01-2010 |
| 20100194024 | TRAY, SHEET POST-PROCESSING APPARATUS, AND SHEET-ALIGNMENT METHOD - According to one embodiment, a tray includes a take on surface on which a sheet is placed, a projecting portion configured to stick out from the take on surface, and a slip stopper including a sheet-slip stopper portion having a larger frictional coefficient with the sheet than the take on surface has. The slip stopper sticks the sheet-slip stopper portion out from the take on surface when the sheet comes into contact with the projecting portion. | 08-05-2010 |
| 20110193283 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which in a case where a sheet folding process or a staple process is performed, even in the case where the size precision of a sheet used is not satisfactory, the high-precision staple process and folding process can be performed to the sheet. In a sheet processing method of a sheet processing apparatus to perform a specified process to a sheet, a relatively moved sheet is detected, the size of the sheet is calculated based on the detection result, and a position where the specified process is performed to a bundle of sheets as an object of the specified process is adjusted based on the calculated sheet size. | 08-11-2011 |
| 20120161379 | POST-PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - The post-processing apparatus obliquely disposed is provided with a stacker | 06-28-2012 |
| 20130001848 | SKEW CORRECTION DEVICE, IMAGE FORMING SYSTEM, AND SKEW CORRECTION METHOD - A skew correction device for aligning a booklet that is a folded bundle of sheets on a conveying path includes a first member against which a leading end of the booklet abuts in a conveying direction; a second member configured to push a trailing end of the booklet in the conveying direction so that the leading end of the booklet abuts against the first member; and a deflection generating member configured to deflect the booklet downward when the trailing end is pushed. | 01-03-2013 |
| 20130038013 | SHEET STACKING APPARATUS - A sheet stacking apparatus includes a discharge unit, a stacking tray, an acquisition unit, a shift control unit, and an alignment unit. The shift control unit controls a stacking position of a sheet in a sheet width direction in response to shift information acquired by the acquisition unit. The alignment unit aligns a sheet staked on the stacking tray and moves to a position that abuts on a side edge of the sheet in the sheet width direction to align the sheet. The shift control unit controls a stacking position of a second sheet to stack the second sheet on a second position or on a first position depending on where a first sheet is stacked and on shift information of the second sheet. | 02-14-2013 |
| 20130082432 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS FOR STABLY ALIGNING SHEETS HAVING A LONG LENGTH - The alignment unit includes: an upstream-side pressing portion that presses a side edge of the sheet; and a downstream-side pressing portion that presses the side edge of the sheet. The downstream-side pressing portion includes: a first pressing portion that is arranged downstream of the center of gravity of a predetermined-size sheet and upstream of the downstream edge of the predetermined-size sheet and that presses the predetermined-size sheet; and a second pressing portion that is arranged downstream of the downstream edge of the predetermined-size sheet and downstream of the center of gravity of a large-size sheet having twice or more than twice the length of the predetermined-size sheet and that presses the large-size sheet. The second pressing portion is formed to protrude further toward the center side in the width direction than the first pressing portion. | 04-04-2013 |
| 20130207334 | POST-PROCESSING DEVICE AND IMAGE FORMING APPARATUS - A post-processing device includes a transport section transporting a sheet; a load section loading the sheet thereon; a first aligner moving the sheet while being in contact with a surface thereof to align the sheet; a second aligner moving the sheet while being in contact with an edge thereof to align the sheet; an alignment controller controlling the aligners to align the sheet based on a first mode in which they simultaneously align the sheet, and based on a second mode, for every predetermined number of sheets, in which one aligner aligns the sheet after the other aligner completes the alignment process; and a transport controller causing the transport section to transport the sheet at a reduced speed for every predetermined number of sheets so that the sheet reaches the load section after completion of the second-mode alignment process performed after a previous sheet is loaded on the load section. | 08-15-2013 |
| 20140035217 | SHEET PROCECESSING APPARATUS - A sheet processing apparatus according to an embodiment comprises a processing tray configured to receive sheets to be processed, the processing tray having an ejecting side from which sheets are ejected, and a loading tray provided downstream from the processing tray in a sheet ejecting direction and configured to receive sheets ejected from the processing tray. The sheet processing apparatus further comprises a bending restrainer including a restraining member extending almost parallel to the processing tray and covering a portion of the ejecting side of the processing tray, the restraining member configured to restrain bending of sheets ejected from the processing tray to the loading tray. | 02-06-2014 |
| 20140175730 | Translatable Roller Media Aligning Mechanism - A media conveying system for aligning a media sheet in a media path of an image forming apparatus may include a first roll mounted across the media path, a second roll mounted relative to the first roll so as to define a first nip between the first roll and the second roll, and a reference edge positioned along a side of the media path. A drive mechanism is coupled to the second roll for translating the second roll in a first direction such that a media sheet positioned in the nip moves in the first direction towards the reference edge. | 06-26-2014 |
