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US 7,922,162 B2Granted
Sheet processing apparatus and image forming device having the same
AssigneeCanon Kabushiki Kaisha
InventorDaisaku Kamiya
Life of this patent
Estimating the term…
Abstract
A sheet processing apparatus staples a bundle of sheets, folds the sheets into two to make a book, and presses the folded sheets. A stitch bookbinding unit moves a press unit having press rollers and, a press holder, and the like constituting a creasing unit along the fold of a bundle of sheets subjected to the folding process by the press rollers and so as to reliably nip-press the fold by the nip between the moving press rollers and for pressing it. The press holder performs intermittent movement in which it is stopped during movement.
Claims14
A sheet processing apparatus having:
- a folding unit which performs a folding process to a sheet bundle made up of a plurality of sheets;
- a creasing unit, located downstream of the folding unit in a conveying direction of the sheet bundle, which presses a folded portion of the sheet bundle folded by the folding unit;
- a moving unit which moves the creasing unit along the folded portion to press the folded portion;
- and
- a controlling unit which controls the moving unit,
- wherein the controlling unit controls the moving unit so as to bring the creasing unit to a stop for a stop time at least once in the middle of pressing the folded portion of the sheet bundle by the creasing unit.
3 more elements
An image forming apparatus comprising:
- an image forming portion which forms an image on a sheet;
- a folding unit which performs a folding process to a sheet bundle made up of a plurality of sheets;
- a creasing unit, located downstream of the folding unit in a conveying direction of the sheet bundle, which presses a folded portion of the sheet bundle folded by the folding unit;
- a moving unit which moves the creasing unit along the folded portion to press the folded portion;
- and
- a controlling unit which controls the moving unit,
- wherein the controlling unit controls the moving unit so as to bring the creasing unit to a stop for a stop time at least once in the middle of pressing the folded portion of the sheet bundle by the creasing unit.
4 more elements
Dependencies are inferred from the claim text.