Patent application number | Description | Published |
20080203647 | SHEET POST-PROCESSING APPARATUS - A support member | 08-28-2008 |
20080237973 | SHEET POST-PROCESSING APPARATUS - A sheet post-processing apparatus includes driving rollers that are arranged in a leading end position in a sheet conveying direction of a standby tray and axis of which are perpendicular to the conveying direction and driven rollers that rotate following the driving rollers and are provided in a front portion in the sheet conveying direction of the standby tray such that an interval thereof narrows in the sheet conveying direction. The driven rollers may be arranged in the front in the sheet conveying direction of the standby tray while being spaced apart from the standby tray. | 10-02-2008 |
20080315494 | SHEET POST-PROCESSING APPARATUS AND SHEET POST-PROCESSING METHOD - In a sheet post-processing apparatus, a sheet guide is arranged above a processing tray that aligns stacked one or plural sheets. The sheet guide is moved by racks to be spaced apart from or brought close to the processing tray. The racks are controlled to be driven on the basis of the number of sheets stacked on the processing tray or the thickness of a stack of the sheets to adjust a space between the processing tray and the sheet guide. | 12-25-2008 |
20080315505 | SHEET POST-PROCESSING APPARATUS AND SHEET POST-PROCESSING METHOD - A bundle claw attached to a sheet conveyor belt includes a concave portion having a bottom surface for regulating a position of a trailing end of the sheets, and, in the bottom surface, a surface on a lower side that comes into contact with the sheet conveyor belt is formed deeper than a surface on an upper side to form the step portion between the surface on the lower side and the surface on the upper side. Therefore, when a small number of sheets are discharged from a processing tray to a stacking tray, a trailing end of the sheets is located on the lower surface side of the concave surface of the bundle claw, where the trailing end of the sheets should be originally located, and does not move to the upper surface side of the concave surface of the bundle claw. | 12-25-2008 |
20080315506 | SHEET POST-PROCESSING APPARATUS AND SHEET POST-PROCESSING METHOD - When a sheet is conveyed from a processing tray to a stacking tray, a bar-like pushing member is moved in a direction of the stacking tray in synchronization with an ejector. Consequently, simultaneously with the movement of the sheet by the ejector, a lower surface of a leading end of the sheet is pushed to relax and reduce a contact force between the lower surface of the leading end of the sheet and the stacking tray (or an upper surface of a sheet already stacked on the stacking tray). As a result, static friction at the leading end of the sheet is changed to dynamic friction and the entire sheet is conveyed to the stacking tray without bending. | 12-25-2008 |
20090014950 | SHEET POST-PROCESSING APPARATUS HAVING EXCELLENT SHEET STACKING CAPABILITY - A sheet post-processing apparatus discharges and conveys a sheet from a process tray to a storage tray, and decelerates a bundle hook and a paper discharge roller when the bundle hook reaches a discharge start position of a bundle of sheets. At this time, a tangential speed of the paper discharge roller is faster than a movement speed of the bundle hook. Subsequently, the sheet post-processing apparatus stops the paper discharge roller in accordance with a rotation position of the bundle hook, and then decelerates the movement speed of the bundle hook. After the sheets are stacked on the storage tray, the bundle hook accelerates to return to a home position. Additionally, the sheet post-processing apparatus includes a spool | 01-15-2009 |
20090062097 | Z-FOLDING APPARATUS AND SHEET PROCESSING APPARATUS - A Z-folding apparatus of an embodiment of the invention includes a pair of feed rollers to transport a sheet along a specified transport passage, a contact portion with which a head of the transported sheet comes in contact, a press member to press a specified position of the sheet apart from the head, and a pair of folding rollers to form a fold line on the sheet and to transport the sheet on which the fold line has been formed. When the head of the sheet comes in contact with the contact portion, the press member presses the specified position of the sheet apart from the head in a transport direction toward the pair of folding rollers, and guides it to a nip between the rollers of the pair of folding rollers. | 03-05-2009 |
20090062099 | FOLDING ROLLER FOR SHEET PROCESSING APPARATUS - A medium processing apparatus of an embodiment of the invention includes a plurality of rollers constituting a plurality of roller pairs, a pair of feed rollers, a first pair of folding rollers, and a second pair of folding rollers, and when an angle between a line connecting axial centers of the pair of rollers and a line connecting axial centers of the first pair of folding rollers is η | 03-05-2009 |
20100219576 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - A sheet processing apparatus includes a stapler that applies post-processing to sheets conveyed from an image forming apparatus, a vertical aligning unit that conveys the sheets to the stapler and brings an edge of the sheets into contact with a movable stopper arranged in a conveying path for the sheets to align the sheets in a conveying direction, and a horizontal aligning unit that holds the sheets with a pair of movable aligning plates from both sides along the conveying direction to align the sheets in a direction orthogonal to the conveying direction. The sheet processing apparatus further includes a control unit that switches a position of the stopper according to a size of the sheets and controls the aligning plates to be located on both sides close to the center of the sheets when the sheets are brought into contact with the stopper. The stapler applies the post-processing to the sheets aligned. | 09-02-2010 |
20100244369 | PAPER SHEET PROCESSING APPARATUS, AND PAPER SHEET PROCESSING METHOD - A post-processing method involves using a standby tray to receive a paper sheet to be supplied from a digital copier, a processing tray to receive a paper sheet dropped from a standby tray, a feed member which guides the rear end of a paper sheet received in a standby tray in the feeding direction to a processing tray, and scrapes and sends the rear end of a paper sheet dropped onto a processing tray to a stopper, a press member which clamps the rear end of a paper sheet received in a standby tray by cooperating with two feed members, and a stapler to staple the aligned rear ends of paper sheets. When a first paper sheet is supplied to the standby tray, the press member presses the rear end of the first paper sheet, to receive a second paper. | 09-30-2010 |
20100252982 | SHEET POST-PROCESSING APPARATUS HAVING EXCELLENT SHEET STACKING CAPABILITY - A sheet post-processing apparatus discharges and conveys a sheet from a process tray to a storage tray, and decelerates a bundle hook and a paper discharge roller when the bundle hook reaches a discharge start position of a bundle of sheets. At this time, a tangential speed of the paper discharge roller is faster than a movement speed of the bundle hook. Subsequently, the sheet post-processing apparatus stops the paper discharge roller in accordance with a rotation position of the bundle hook, and then decelerates the movement speed of the bundle hook. After the sheets are stacked on the storage tray, the bundle hook accelerates to return to a home position. Additionally, the sheet post-processing apparatus includes a spool | 10-07-2010 |
20100276861 | SHEET POST-PROCESSING APPARATUS AND SHEET POST-PROCESSING METHOD - A sheet post-processing apparatus of the present invention has, above a processing tray, a standby tray for making a sheet stand by. The sheet on the standby tray is dropped and supplied onto the processing tray, so that a sheet feeding path between the standby tray and processing tray can be shortened. In the case where there exists no sheet on the sheet discharge tray when a sheet bundle is discharged onto the sheet discharge tray, one sheet is previously discharged onto the sheet discharge tray. Thus, by discharging the sheet bundle in a state where there is the one sheet on the sheet discharge tray, the sheet vertical alignment in the case where the sheet bundle is discharged onto the sheet discharge tray can be enhanced. | 11-04-2010 |
20100320681 | SHEET POST-PROCESSING APPARATUS - A sheet post-processing apparatus of the present invention comprises: a sheet discharge section that feeds a sheet supplied from an image forming apparatus to a post-processing section and leads the sheet that has passed through the post-processing section to a sheet discharge port; a sheet discharge tray that receives a sheet discharged from the sheet discharge port and can move to a first standby position and a second standby position higher than the first standby position and nearer to the sheet discharge port; and a controller that controls the height position of the sheet discharge tray by identifying the type of the sheet. The controller changes the height position of the sheet discharge tray to allow the sheet discharge tray to receive the discharged sheet at the first standby position in the case where the sheet is a first type while to receive the discharged sheet at the second standby position in the case where the sheet is a second type. | 12-23-2010 |
20120025452 | SHEET POST-PROCESSING APPARATUS - The disclosure concerns a standby tray for making a sheet at the position above a processing tray. The sheet on the standby tray is dropped and supplied onto the processing tray. The upper end of the center area of a shutter supporting the rear end of the sheet on a sheet discharge tray which is slidable to the sheet discharge section of the standby tray or processing tray is made lower than the upper end of the peripheral area of the shutter. Movable portions of the shutter are extended when the sheet discharge tray is slid to close the sheet discharge sections of the processing tray and/or standby tray. | 02-02-2012 |
20140291922 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes a sheet tray, a processing unit configured to process one or more sheets that are placed on the sheet tray, a supporting member that is movable into and out of a conveying path of a sheet to be placed on the sheet tray, and a driving unit configured to move the supporting member into and out of the conveying path of the sheet. The supporting member includes a sheet support section that supports the sheet when the supporting member is moved into the conveying path. | 10-02-2014 |
20140300047 | PAPER POST-PROCESSING APPARATUS - A paper post-processing apparatus comprises a processing tray section; a post-processing section; a paper discharge tray section; a first chuck section configured to hold the rear end of the paper standing by in the buffer section; a second chuck section configured to hold the rear end of the paper loaded on the processing tray; and a third chuck section configured to hold the rear end of the paper loaded on the paper discharge tray; wherein a next paper is fed onto the paper held by the first chuck section in the buffer section, a paper is fed onto the paper held by the second chuck section from the buffer section in the processing tray section, and a paper is discharged onto the paper on the paper discharge tray held by the third chuck section from the processing tray section in the paper discharge tray section. | 10-09-2014 |