Patent application number | Description | Published |
20080202302 | SHEET CUTTING APPARATUS AND IMAGE FORMING APPARATUS - A sheet cutting apparatus comprising: a movable blade which lowers toward a sheet from above to cut the sheet; and a pushing member located upstream from a tip end of the movable blade in a lowering direction, and having a pushing surface which lowers together with the movable blade to push a cut piece of the sheet cut by the movable blade. | 08-28-2008 |
20090088308 | SHEET PROCESSING APPARATUS, SHEET PROCESSING METHOD AND IMAGE FORMING APPARATUS - The present invention provides a sheet processing apparatus and an image forming apparatus, in which sheet information can be easily and surely be concealed without damaging a sheet S. After a wrapping portion | 04-02-2009 |
20090134563 | SHEET STACKING APPARATUS, SHEET PROCESSING APPARATUS, AND IMAGE FORMING APPARATUS - A sheet stacking apparatus includes an alignment roller which conveys a sheet to a sheet positioning member and an opening and closing shutter which is disposed so as to face a sheet stack surface of a sheet stack guide. The sheet positioning member abuts a sheet end in a sheet conveying direction to align the sheet. The sheet is stacked on the sheet stack guide. The opening and closing shutter has a regulating area where sheet conveying guide and buckling of the sheet are regulated from an upstream side to a downstream side in the sheet conveying direction of the alignment roller. A guide interval formed between the opening and closing shutter and the sheet stack surface can be changed. Therefore, in sheet conveying positioning, the buckling can securely be prevented in the sheet stack guide. | 05-28-2009 |
20100008709 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A sheet processing apparatus that performs bookbinding processing on a folded sheet bundle, includes a holding portion configured to hold a folded sheet bundle, and a pressing member configured to press a folded spinal portion of the sheet bundle held by the holding portion. At least one of the holding portion and the pressing member can move in a direction to approach each other along a surface of the sheet held by the holding portion to press the folded spinal portion of the sheet bundle. | 01-14-2010 |
20100230886 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME - A folded spine of a booklet held by a pair of opposing holding members is deformed by entering a pressing member into a gap between the pair of holding members and bringing the pressing member into pressure contact with the folded spine. In consequence, the folded spine is prevented from receiving an excessive pressing force, and a smooth surface with a width substantially equal to the thickness of the booklet is thus formed on the folded spine, whereby a booklet with a good appearance can be made. | 09-16-2010 |
20100329755 | SHEET PUNCHING DEVICE AND IMAGE FORMING APPARATUS HAVING SHEET PUNCHING DEVICE - A sheet punching device includes a first blade, a first die into which the first blade is fitted from a first surface of a sheet to form a punch hole in the sheet, a second blade, and a second die into which the second blade is fitted. The second blade is inserted into the punch hole formed by the first blade from a second surface of the sheet and fitted into the second die. | 12-30-2010 |
20100329768 | CUTTING APPARATUS AND IMAGE FORMING APPARATUS - A cutting apparatus configured to cut a sheet or a sheet bundle includes a cutting blade whose blade surface has a plurality of grooves. In the cutting apparatus, a scraping member enters the grooves provided on the blade surface to scrape off cutting scraps remaining after a cutting operation. Accordingly, the cutting apparatus can scrape off cutting scraps from the cutting blade even if the adhesive force of the cutting scraps is great. | 12-30-2010 |
20110081183 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes a holding portion that nips and holds a booklet, which includes folded sheets, by a pair of holding members opposite to each other, and a pressing portion that enters a gap between the pair of holding members to press a spine of the booklet held by the holding portion while moving along the spine of the booklet so as to deform the spine of the booklet, wherein the pressing portion changes its moving direction along the spine of the booklet and changes the pressing position thereof in the thickness direction of the booklet held between the pair of holding members, when the pressing portion deforms the spine of the booklet. | 04-07-2011 |
20110081184 | SHEET PROCESSING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes a holding portion that nips and holds a booklet, which includes folded sheets, by a pair of holding members opposite to each other; and a pressing portion that enters a gap between the pair of holding members, wherein the pressing portion presses the spine of the held booklet so as to deform the spine of the booklet; wherein the pressing portion has plurality of pressing members, each having a different thickness in the thickness direction of the booklet, and the pressing member capable of entering the gap between the pair of holding members, and having the thickness closest to the thickness of the booklet which is nipped and held by the pair of holding members is selected among the plurality of pressing members so as to perform the deforming process. | 04-07-2011 |
20110081186 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes a holding portion that holds a booklet, which includes folded sheets, by a pair of holding members, a pressing portion having a first pressing member, which is brought into contact with a spine of a booklet held by the holding portion so as to perform a deforming process to the spine, and a second pressing member having a thickness, in the thickness direction of the booklet, greater than that of the first pressing member, a moving portion that moves the pressing member along the spine, and a controlling portion that changes the first pressing member to the second pressing member, and increases a deformation amount from the spine before the deformation to a pressing position in the pressing direction where the second pressing member presses the spine, when the thickness of the booklet held by the holding portion exceeds a predetermined thickness. | 04-07-2011 |
20110278782 | Sheet Processing Apparatus and Image Forming Apparatus - A sheet processing apparatus and an image forming apparatus are provided which can stabilize the shape of the spine after a squaring process. To square a spine Sb of a sheet bundle S, a spine processing apparatus | 11-17-2011 |
20120321414 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME - A folded spine of a booklet held by a pair of opposing holding members is deformed by entering a pressing member into a gap between the pair of holding members and bringing the pressing member into pressure contact with the folded spine. In consequence, the folded spine is prevented from receiving an excessive pressing force, and a smooth surface with a width substantially equal to the thickness of the booklet is thus formed on the folded spine, whereby a booklet with a good appearance can be made. | 12-20-2012 |
20120326379 | SHEET STACKING APPARATUS AND IMAGE FORMING APPARATUS - A sheet stacking apparatus includes an endless belt member onto which sheets are stacked and which moves rotationally to convey the sheets; a plurality of holding members that is provided on the belt member and that holds the sheets down to a sheet stacking surface of the belt member to nip the sheets; and sheet detecting portions which detect presence or absence of sheets between the holding members and the sheet stacking surface of the belt member, the sheet detecting portions each include a light emitting portion that emits light and a light receiving portion that receives the light, and the light emitting portions and the light receiving portions are fixedly provided below the sheet stacking surface of the belt member so that the light emitting portions and the light receiving portions detect presence or absence of a sheet at times when facing the holding members. | 12-27-2012 |
20130026703 | SHEET STACKING APPARATUS AND IMAGE FORMING APPARATUS - A finisher | 01-31-2013 |
20130156477 | SHEET PUNCHING DEVICE AND IMAGE FORMING APPARATUS HAVING SHEET PUNCHING DEVICE - A sheet punching device comprises a first blade, a first die into which the first blade is fitted from a first surface of a sheet to form a punch hole in the sheet, a second blade, and a second die into which the second blade is fitted. The second blade is inserted into the punch hole formed by the first blade from a second surface of the sheet and fitted into the second die. | 06-20-2013 |
20130221596 | SHEET PROCESSING DEVICE AND IMAGE FORMING SYSTEM - A driving roller for conveying a sheet to a sheet punching unit, and a sheet inverting unit including a driving roll capable of being driven to rotate by the driving roller are provided between a branching point, at which a return path of a sheet conveying path is branched, and a sheet punching unit. When a subsequent sheet for which a punching process is performed next reaches the sheet inverting unit, the sheet to which the punching process has been performed by the sheet punching unit is conveyed to the return path by the driving roll while making the sheet pass by a subsequent sheet conveyed to the sheet punching unit by the driving roller. | 08-29-2013 |