| US 7,489,898 B2 | ||
| Sheet processing apparatus and image forming apparatus provided with the same | ||
| Kenichi Hayashi, Abiko (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jul. 13, 2005, as Appl. No. 11/179,515. | ||
| Claims priority of application No. 2004-211807 (JP), filed on Jul. 20, 2004; and application No. 2005-197628 (JP), filed on Jul. 06, 2005. | ||
| Prior Publication US 2006/0018694 A1, Jan. 26, 2006 | ||
| Int. Cl. G03G 15/00 (2006.01) | ||
| U.S. Cl. 399—406 [399/407] | 11 Claims |
| 8. An image forming apparatus comprising:
an image forming portion which forms an image on a sheet; and
a sheet processing apparatus which effects processing on the sheet on which an image has been formed by said image forming
portion,
said sheet processing apparatus including:
a curling unit which curls an end portion of the sheet;
a stacking portion on which the sheet curled by said curling unit is stacked;
a folding device which is disposed downstream of said curling unit and folds a sheet or a sheet bundle curled by said curling
unit;
a sheet bundle conveying portion which conveys the curled sheet or the curled sheet bundle stacked on said stacking portion
to said folding device; and
a curved guide path which guides the sheet or the sheet bundle conveyed by said sheet bundle conveying portion,
wherein said folding device is disposed in said curved guide path, and said curling unit curls the end portion of said sheet
in the same direction as a direction of curvature of said curved guide path, and
wherein said folding device folds the curled sheet or the curled sheet bundle so that the end portion of the sheet curled
by said curling unit may face inwardly.
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