Patent application number | Description | Published |
20090014937 | SHEET FINISHING APPARATUS AND CONTROL METHOD - A sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet subjected to the finishing by the finishing unit to an ejection port and to eject from the ejection port, a storage tray to receive the ejected sheet, a drive unit including plural motors to drive respective devices, and a control unit to control operations of the plural motors. In a trial operation of the sheet finishing apparatus, the control unit controls the plural motors, and shifts the timings and performs driving to prevent plural motors with sound pressure levels not less than a previously set reference level from being simultaneously operated. | 01-15-2009 |
20090014941 | SHEET FINISHING APPARATUS AND CONTROL METHOD - A sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet performed to a post process by the finishing unit to an ejection port and to eject from the ejection port, a paper storage tray to receive the ejected sheet, a drive unit including a plurality of motors to drive respective devices, and a control unit to control operations of the plurality of motors. In a trial operation of the sheet finishing apparatus, the control unit controls the plurality of motors, and first drives a motor with a sound pressure level less than a previously set reference level. | 01-15-2009 |
20090014947 | SHEET FINISHING APPARATUS AND CONTROL METHOD - A sheet finishing apparatus including a finishing unit configured to perform finishing on a sheet conveyed from an image forming apparatus, a sensor group including device sensors that are operated by a power source voltage supplied from the image forming apparatus and detect states of a plurality of devices in the sheet finishing unit, and sheet sensors that are for detecting the sheet in the finishing unit, and a control unit to control the plurality of devices in response to detection results of the sensor group. While a first finishing is being executed in the finishing unit, the control unit keeps the sheet sensor in an operable state, stops execution of another finishing, and stops operation of the device sensor for the another finishing. | 01-15-2009 |
20100289207 | SHEET POST-PROCESSING APPARATUS, IMAGE FORMING APPARATUS AND SHEET POST-PROCESSING METHOD - According to one embodiment, a sheet post-processing apparatus includes a machine body, a first roller pair, a tray, a second roller pair, a driving unit, an inlet sensor, a receiving unit and a control unit. The inlet sensor is configured to detect presence or absence of the sheet in the first roller pair driven by the driving unit. The receiving unit is configured to receive, from an image forming apparatus, sheet length information in the sheet conveying direction of the sheet as a target to which the print job is applied. The control unit is configured to control the driving unit to rotate, if the sheet length information indicates special length and the inlet sensor detects a trailing end of the sheet, at least rollers of the second roller pair a predetermined number of times and stop the rollers, the second roller pair nipping the sheet. | 11-18-2010 |
20110031676 | SHEET FINISHING APPARATUS AND CONTROL METHOD - A sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet subjected to the finishing by the finishing unit to an ejection port and to eject from the ejection port, a storage tray to receive the ejected sheet, a drive unit including plural motors to drive respective devices, and a control unit to control operations of the plural motors. In a trial operation of the sheet finishing apparatus, the control unit controls the plural motors, and shifts the timings and performs driving to prevent plural motors with sound pressure levels not less than a previously set reference level from being simultaneously operated. | 02-10-2011 |
20110042881 | SHEET PROCESSING APPARATUS AND A SHEET PROCESSING METHOD - A sheet processing apparatus of an embodiment includes a processing tray on which a sheet conveyed from an image forming apparatus is placed, a stapler to staple the sheet placed on the processing tray, a sheet discharge mechanism to discharge the stapled sheet from the processing tray to a discharge port, a liftable storage tray on which the sheet discharged from the discharge port is stacked, and a guide material which is provided on the storage tray and guides insertion of a sheet when the sheet is inserted from the discharge port into the stapler and manual stapling is performed. | 02-24-2011 |
20110079949 | SHEET FINISHING APPARATUS AND CONTROL METHOD - A sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet performed to a post process by the finishing unit to an ejection port and to eject from the ejection port, a paper storage tray to receive the ejected sheet, a drive unit including a plurality of motors to drive respective devices, and a control unit to control operations of the plurality of motors. In a trial operation of the sheet finishing apparatus, the control unit controls the plurality of motors, and first drives a motor with a sound pressure level less than a previously set reference level. | 04-07-2011 |
20110218092 | SHEET FOLDING MECHANISM, SHEET POST-PROCESSING APPARATUS AND METHOD THEREOF - Certain embodiments provide a sheet folding mechanism including: a folding unit; a shaft; a pair of discharge rollers provided on the shaft; a pair of pinch rollers; a pair of clutches configured to transmit a rotational force only in the reverse direction; a pair of corrugation rollers, each of the corrugation rollers having a cam surface including a first diameter portion and a second diameter portion on an outer peripheral surface thereof, and an eccentric bearing to be fixed to each of the pair of clutches; a lock member configured to prevent the pair of corrugation rollers from idling; a drive unit configured to rotate the shaft; and a controller configured to cause the corrugation rollers to apply corrugation on the sheet bundle using any one of the first diameter portions and the second diameter portions according to the number of sheets in the sheet bundle. | 09-08-2011 |
Patent application number | Description | Published |
20090033015 | SHEET FOLDING APPARATUS, SHEET FOLDING METHOD, AND IMAGE FORMING APPARATUS - A sheet folding apparatus including a sheet supporting member which has an inclined surface to support a stack of sheets, a sheet position adjuster which adjusts a position of the stack of sheets along the inclined surface, a sheet pressing unit which presses the stack of sheets against the inclined surface, a folding unit which folds the stack of sheets pressed by the sheet pressing unit, and a controller which controls the sheet pressing unit to press the stack of sheets on the sheet position adjuster against the inclined surface, and to create a gap between the stack of sheets on the sheet position adjuster and the sheet pressing unit to receive a sheet onto the sheet position adjuster. | 02-05-2009 |
20090033016 | SHEET FOLDING APPARATUS, SHEET FOLDING METHOD, AND IMAGE FORMING APPARATUS - A sheet folding apparatus includes an adjuster which supports a stack of sheets stacked on an inclined surface of a sheet path and adjusts a position of the stack of sheets along the inclined surface, a stapler which staples the stack of sheets set at a stapling position, a folding unit which folds the stack of sheets set at a folding position, and a guide provided between the stapler and the folding unit. The stapler ejects a staple from a staple surface by sinking from the inclined surface. The folding unit includes folding rollers and a folding blade which inserts the stack of sheets into a nip between the folding rollers. The guide includes a loading surface offset from the staple surface and an uprising member which is disposed on a part of the loading surface to keep the stack of sheets symmetric with respect to the folding rollers. | 02-05-2009 |
20090033018 | SHEET FOLDING APPARATUS, SHEET FOLDING METHOD, AND IMAGE FORMING APPARATUS - A sheet folding apparatus includes a sheet supporting member which has an inclined surface to support a stack of sheets, a sheet position adjuster which adjusts a position of the stack of sheets along the inclined surface, a sheet pressing unit which presses the stack of sheets from a lower side of the stack of sheets to an upper side of the stack of sheet, and a folding unit which folds the stack of sheets pressed by the sheet pressing unit. | 02-05-2009 |
20090036287 | METHOD OF FOLDING IN THE MIDDLE AND SHEET POST-PROCESSING APPARATUS PROVIDED WITH SADDLE UNIT - A saddle unit provided with a fold-enhancing unit for performing fold enhancement of sheets of paper folded in the middle. The fold-enhancing unit includes a fold-enhancing roller mechanism which performs the fold-enhancing operation in the direction orthogonal to the sheet carrying direction. The fold-enhancing roller mechanism includes a fold-enhancing roller pair that pinches and presses a bundle of sheets at a nip. The roller guide pair provided in the fold-enhancing roller mechanism guides the sheets of paper to the nip of the fold-enhancing roller pair when enhancing the fold of the sheets of paper. The saddle unit changes one or both of the number of times and the velocity of the reciprocating movement according to one or both of the number of sheets of paper and the quality mode which is entered and set by the user from the operation panel of an image forming apparatus or job-set by the personal computer by a user. | 02-05-2009 |
20090310982 | IMAGE FORMING APPARATUS AND CONTROL METHOD FOR IMAGE FORMING APPARATUS - An image forming apparatus includes a first conveying unit that conveys a sheet, an image forming unit that forms an image on the sheet, a switch that switches a discharge destination for the sheet having the image formed thereon to a first direction and to a second direction, a stacking tray on which the sheet conveyed in the first direction is stacked, and a second conveying unit that conveys the sheet conveyed in the second direction. When occurrence of a jam is detected in the second conveying unit, the image forming apparatus controls the switch to switch the discharge destination of the sheet to the first direction. | 12-17-2009 |