| Patent application number | Description | Published |
|---|
| 20080315489 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which while the occurrence of a sheet jam is avoided, a pair of folding rollers for a folding process and a stapler for a staple process can be disposed to be close to each other, and a contribution can be made to the improvement of productivity. A staple unit is provided which performs a staple process to a bundle of sheets transported to a specified staple position in a sheet transport path, and staples the bundle of sheets by causing a press unit that presses a sheet surface of the bundle of sheets when the staple process is performed to cooperate with a reception unit that is disposed to face an inside of the sheet transport path through a hole provided in an inner wall of the sheet transport path and receives the bundle of sheets pressed by the press unit, and a vicinity of an upstream side edge of the reception unit in a sheet transport direction on the sheet transport path is covered by an elastic member supported by one of a wall surface of the sheet transport path and the reception unit. | 12-25-2008 |
| 20080315491 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique which can stably realize a high precision folding process irrespective of the number of sheets and the material of sheets constituting a bundle of sheets as an object of the folding process. At least one of information relating to the bundle of sheets as the object of the folding process by a folding blade and information relating to an environment in which the folding process is performed is acquired, and based on the acquired information, a position where the folding blade is brought into contact with the bundle of sheets as the object of the folding process is adjusted. | 12-25-2008 |
| 20080315507 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which in a sheet processing apparatus including a switchback portion in a sheet transport path, a contribution can be made to the improvement of maintenance in the case where a sheet jam occurs in the vicinity of a switchback position. In a sheet processing method of a sheet processing apparatus for performing a specified process to a sheet, the sheet processing apparatus includes a first sheet transport path for transporting the sheet, and a second sheet transport path that is for performing switchback transport of the sheet transported in the first sheet transport path and includes at least one of a hole, a projection and a recess in the vicinity of a meeting position between the second sheet transport path and the first sheet transport path, and the first sheet transport path and the second sheet transport path are enabled to be integrally pulled out to the outside of the sheet processing apparatus. | 12-25-2008 |
| 20080315508 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which a retracting operation of a bundle of sheets from a stapler after a staple process can be stably performed irrespective of the number of sheets constituting the bundle of sheets or the transport resistance. When the bundle of sheets subjected to the staple process is moved by a stacker in a direction of retracting from the stapler, an alignment roller is caused to come in contact with the bundle of sheets held by the stacker and to assist the movement of the bundle of sheet. | 12-25-2008 |
| 20080315514 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique which can greatly improve throughput at the time when, after a folding process is performed to a bundle of sheets, the bundle of sheets subjected to the folding process is transported to a downstream side, and can prevent a wrinkle from occurring in the bundle of sheets at the time of the folding process. A sheet transport speed of a pair of rollers is changed from a first transport speed to a second transport speed at a specified timing between when a folding blade finishes a pressing operation of the bundle of sheets and starts a return operation to a waiting position and when a rear edge of the bundle of sheets pressed into a nip of a pair of rollers by the folding blade passes through the nip of the pair of rollers. | 12-25-2008 |
| 20090072465 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which in a case where a sheet folding process or a staple process is performed, even in the case where the size precision of a sheet used is not satisfactory, the high-precision staple process and folding process can be performed to the sheet. In a sheet processing method of a sheet processing apparatus to perform a specified process to a sheet, a relatively moved sheet is detected, the size of the sheet is calculated based on the detection result, and a position where the specified process is performed to a bundle of sheets as an object of the specified process is adjusted based on the calculated sheet size. | 03-19-2009 |
| 20100119276 | SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS USING THE SAME, AND SHEET FOLDING METHOD - A sheet folding apparatus includes a fold unit which folds a center of a sheet bundle to form a fold line, and a reinforce roller which moves along the fold line while applying pressure to the fold line to reinforce the fold line. The reinforce roller includes plural sub-rollers which are concentrically coupled to each other in a rotation axis direction, and the respective sub-rollers apply different pressures to the fold line. | 05-13-2010 |
| 20110031674 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - In the staple process and folding process after performing switchback transport of a sheet, there is provided a technique which can be made to the improvement of maintenance in the case where a sheet jam occurs in the vicinity of the switchback position. A saddle unit which is supported to pull out the processing apparatus along a direction orthogonal to a sheet transport direction, Wherein the saddle unit includes a stapler, a folding blade and a pair of folding rollers, a first sheet transport path configured to be a first transport guide and a second transport guide for transporting the sheet to the stapler and the pair of folding rollers, a second sheet transport path to transport switchback for performing the staple process and the folding process to the sheet which is transported to the first transport path, in the saddle unit pulled out to the outside of the processing apparatus, the sheet which is jammed at the first sheet transport can be removed by opening the first transport guide and the second transport guide. | 02-10-2011 |
| 20110057376 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique which can greatly improve throughput at the time when, after a folding process is performed to a bundle of sheets, the bundle of sheets subjected to the folding process is transported to a downstream side, and can prevent a wrinkle from occurring in the bundle of sheets at the time of the folding process. A sheet transport speed of a pair of rollers is changed from a first transport speed to a second transport speed at a specified timing between when a folding blade finishes a pressing operation of the bundle of sheets and starts a return operation to a waiting position and when a rear edge of the bundle of sheets pressed into a nip of a pair of rollers by the folding blade passes through the nip of the pair of rollers. | 03-10-2011 |
| 20110057378 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which a retracting operation of a bundle of sheets from a stapler after a staple process can be stably performed irrespective of the number of sheets constituting the bundle of sheets or the transport resistance. When the bundle of sheets subjected to the staple process is moved by a stacker in a direction of retracting from the stapler, an alignment roller is caused to come in contact with the bundle of sheets held by the stacker and to assist the movement of the bundle of sheet. | 03-10-2011 |
| 20110079948 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - There is provided a technique in which while the occurrence of a sheet jam is avoided, a pair of folding rollers for a folding process and a stapler for a staple process can be disposed to be close to each other, and a contribution can be made to the improvement of productivity. A staple unit is provided which performs a staple process to a bundle of sheets transported to a specified staple position in a sheet transport path, and staples the bundle of sheets by causing a press unit that presses a sheet surface of the bundle of sheets when the staple process is performed to cooperate with a reception unit that is disposed to face an inside of the sheet transport path through a hole provided in an inner wall of the sheet transport path and receives the bundle of sheets pressed by the press unit, and a vicinity of an upstream side edge of the reception unit in a sheet transport direction on the sheet transport path is covered by an elastic member supported by one of a wall surface of the sheet transport path and the reception unit. | 04-07-2011 |
