| 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 |
| 20080315513 | PAPER FEEDING DEVICE, IMAGE FORMING APPARATUS, AND SETTING INFORMATION SWITCHING METHOD - To provide a paper feeding device that can switch setting information only with an easy action of sheet removal and setting in a predetermined position. The paper feeding device includes a first detecting unit that detects whether a sheet is set in a predetermined position, a second detecting unit that detects whether the sheet removal and setting is performed in the predetermined position after the setting of the sheet is detected by the first detecting unit, and a switching unit that switches setting information concerning the sheet when the sheet removal and setting is detected by the second detecting unit. | 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 |
| 20090057976 | SHEET POST-PROCESS APPARATUS INCLUDING MOVABLE STACK TRAY, AND SHEET POST-PROCESS METHOD - A sheet post-process apparatus according to one example of the present invention includes a movable stack tray for stacking a sheet that is elevated in a vertical direction; a movable tray position detection unit that detects a vertical position of the movable stack tray while a request command for post-processing of the sheet is not received; an upper surface sensor that senses either an upper surface of the movable stack tray or an upper surface of the sheet stacked on the movable stack tray when a first position of the movable stack tray detected by the movable tray position detection unit is lower than or equal to a predetermined first height; and a movable tray moving unit that moves the movable stack tray upward when either the upper surface of the movable stack tray or the upper surface of the sheet stacked on the movable stack tray is not sensed by the upper surface sensor. | 03-05-2009 |
| 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 |
| 20100013140 | FINISHER AND IMAGE FORMING APPARATUS - A finisher includes a bundle hook configured to push a sheet bundle in a first direction and convey the sheet bundle; a drive unit configured to drive the bundle hook in the first direction and a second direction; a discharge unit configured to discharge the sheet bundle conveyed by the bundle hook; a stacking unit configured to stack the sheet bundle discharged by the discharge unit; and a control unit configured to control the drive unit to drive the bundle hook in the second direction if the drive unit drives the bundle hook in the first direction and the discharge unit discharges the sheet bundle. | 01-21-2010 |
| 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 |
| 20110031678 | MOVABLE TRAY DRIVE CONTROL DEVICE AND MOVABLE TRAY DRIVE CONTROL METHOD - According to an embodiment, a drive control unit which drive-controls a movable tray on which a sheet discharged from a predetermined sheet discharge port is stacked, in such a manner that the movable tray sequentially descends according to a sheet discharge operation; an arrival position acquisition unit which acquires, in predetermined timing, arrival position information indicating an actual arrival position of the movable tray when the movable tray is drive-controlled by the drive control unit using a predetermined lower limit position as a target position; a fullness setting unit which sets a full position in the sheet stacking, of the movable tray, on the basis of the arrival position information acquired by the arrival position acquisition unit; and a fullness notification unit which gives a notification that the movable tray is full according to the arrival of the movable tray at the full position, are provided. | 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 |
| 20110089631 | Sheet Post-Process Apparatus Including Movable Stack Tray, and Sheet Post-Process Method - A sheet post-process apparatus according to one example of the present invention includes a movable stack tray for stacking a sheet that is elevated in a vertical direction; a movable tray position detection unit that detects a vertical position of the movable stack tray while a request command for post-processing of the sheet is not received; an upper surface sensor that senses either an upper surface of the movable stack tray or an upper surface of the sheet stacked on the movable stack tray when a first position of the movable stack tray detected by the movable tray position detection unit is lower than or equal to a predetermined first height; and a movable tray moving unit that moves the movable stack tray upward when either the upper surface of the movable stack tray or the upper surface of the sheet stacked on the movable stack tray is not sensed by the upper surface sensor. | 04-21-2011 |
