JP2007045610A5 - - Google Patents

Claims (16)

A sheet aligning and discharging member that presses and discharges the upstream end in the loading direction of the aligned sheet while bringing the downstream end in the loading direction of the sheet carried into the stacking portion into contact with and aligning,
The sheet aligning apparatus, wherein the sheet aligning and discharging member moves away from the downstream end of the sheet toward the upstream end. When the sheet aligning discharge member comprises a plurality, at least one of said plurality of sheet aligning discharge member, the sheet aligning according to claim 1, characterized in that to move toward the upstream end of the sheet apparatus.   The sheet is aligned by sandwiching the upstream end portion and the downstream end portion of the sheet between at least one of the plurality of sheet alignment discharge members and another sheet alignment discharge member. The sheet aligning apparatus according to 1. Until a position aligned sandwich the sheet has a feeding member for moving at least one of said plurality of sheet aligning discharge member, the distance between the other sheet align discharging member when the pinching of the sheet conveying-in direction The sheet aligning apparatus according to claim 3, further comprising a control unit that controls a position of the feeding member so as to be equal to or less than a sheet length.   5. The sheet aligning apparatus according to claim 4, wherein the control unit controls the operation of the feeding member based on sheet size information. And characterized in that at least one said other sheet aligning discharge member of the sheet aligning discharge member, alternating in a position to press and position the upstream end abutting on the downstream end of the sheet The sheet aligning apparatus according to any one of claims 3 to 5. At least one sheet aligning device according to any one of claims 2 to 6, characterized in that discharging by pressing the upstream end of the sheet out of the sheet aligning discharge member to said moving. The sheet aligning apparatus according to claim 4, wherein the plurality of sheet aligning and discharging members are provided on the plurality of feeding members, respectively.   The sheet aligning apparatus according to claim 4, wherein the sheet aligning and discharging member is provided integrally with the feeding member.   The sheet aligning apparatus according to claim 4, wherein the feeding member is an endless belt.   The sheet aligning apparatus according to any one of claims 1 to 10, wherein the sheet aligning and discharging member has an overhang portion for pressing the sheet.   12. The sheet aligning apparatus according to claim 11, wherein the shape of the overhang portion is an inverted L shape or a T shape.   An image forming unit that forms an image on a sheet, and a sheet aligning device that aligns a sheet image formed by the image forming unit, wherein the sheet aligning device is according to any one of claims 1 to 12. An image forming apparatus, which is a sheet aligning apparatus. An image forming unit that forms an image on a sheet, a sheet aligning device that aligns a sheet image formed by the image forming unit, and a control unit that controls the sheet aligning device, wherein the sheet aligning device claims An image forming apparatus according to claim 1, wherein the image forming apparatus is the sheet aligning apparatus according to claim 1 . The sheet aligning apparatus includes a feed member that moves at least one of the plurality of sheet aligning and discharging members to a position where the sheet is sandwiched and aligned with another sheet aligning and discharging member, and the control unit includes The image forming apparatus according to claim 14, wherein the feeding member is controlled such that a distance between the other sheet aligning and discharging member is equal to or less than a sheet length in a sheet carry-in direction when the sheet is sandwiched. .   The image forming apparatus according to claim 15, wherein the control unit controls the operation of the feeding member based on sheet size information.