Patent application number | Description | Published |
20080315492 | SHEET PROCESSING APPARATUS - In a sheet processing apparatus that performs processing for sheets after image formation such as sorting or stapling of the sheets, sheets conveyed into a waiting tray are temporarily stopped while being kept clamped by a driving roller and a pinch roller in the waiting tray and the clamping is once released. A waiting tray unit on a left side is shifted to a right side by a predetermined amount, whereby an end of the stacked sheets is pushed and shifted by a lateral wall on the left side. Thereafter, the sheets are clamped again by the roller pair and discharged. | 12-25-2008 |
20080315503 | SHEET PROCESSING APPARATUS - In a sheet processing apparatus that, for example, sorts or staples sheets after image formation, when preceding finishing is not completed on a processing tray, a third sheet fed anew into a waiting tray of a sheet placing member configuring a sheet waiting unit, which temporarily puts a sheet conveyed thereto on standby, is stacked to be shifted such that leading ends of second and third sheets are located further on a conveying direction upstream side than a leading end of a first sheet. Consequently, longitudinal alignment in the processing tray after that is surely performed. | 12-25-2008 |
20080317530 | FASTENING STRUCTURE FOR ROTATING MEMBER - In a fastening structure for a rotating member such as a paddle, projections are provided in a groove of the paddle, the center of a parallel pin and the center of a hole for the parallel pin of a shaft are shifted from each other to press the parallel pin to one side, and the parallel pin is loose-fit by the projections to eliminate backlash between the groove of the paddle and the parallel pin and eliminate a cause of noise. | 12-25-2008 |
20080317534 | SHEET PROCESSING APPARATUS - A sheet processing apparatus that performs processing for sheets such as sorting or stapling of the sheets after image formation includes a motor that controls a rotating position of a sheet pushing member. When a leading end of a sheet passes, after the leading end of the sheet reaches a pivoting roller, a rotating position of the sheet pushing member is controlled according to a conveyance condition during the passage of a trailing end of the sheet. The sheet pushing member is rotated and, when the trailing end of the sheet passes, the sheet is conveyed while a charge removing brush is pressed against the sheet. | 12-25-2008 |
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 |
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 |
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 |
20130001050 | SHEET PROCESSING APPARATUS, SHEET CONVEYING PATH OPENING METHOD, AND ERASING APPARATUS - A sheet processing apparatus includes: a conveying member configured to convey a sheet; a first opening section including a conveyance guide section arranged on the opposite side of the conveying member across a conveying path and configured to form the conveying path and a first pivot shaft configured to pivotably support the conveyance guide section, the first opening section being configured to form the conveying path using the conveyance guide section if changing to a closed state and open the conveying path if changing to an open state; and a second opening section including a cover section configured to cover the first opening section if the first opening section changes to the closed state and a second pivot shaft configured to pivotably support the cover section, the second opening section being configured to cause, if pivoting, the first opening section to pivot following the second opening section. | 01-03-2013 |
20130002782 | ERASING APPARATUS FOR SHEET AND ERASING METHOD FOR SHEET - According to one embodiment, an erasing apparatus for a sheet includes a conveying path configured to convey a sheet on which an image is formed with a coloring agent that is erased by heating, a first erasing section including, on an upstream side of the conveying path, a first heating member provided on one surface side of the sheet and a first rotating roller provided to be opposed to the first heating member, and a second erasing section including, on a downstream side of the first erasing section, a second heating member provided on the other surface side of the sheet and a second rotating roller provided to be opposed to the second heating member. | 01-03-2013 |
20130003138 | SHADING DEVICE FOR IMAGE READING SECTION - A shading device includes: a shading member to pass a conveying path for conveying a recoding medium to plural image reading sections and reach the plural image reading sections; and a moving member to move the shading member between the plural image reading sections and a retracted position on the outside of the conveying path. | 01-03-2013 |
20130267413 | COLOR ERASING APPARATUS AND METHOD OF CONTROLLING TEMPERATURE OF HEAT SOURCE IN COLOR ERASING APPARATUS - A color erasing apparatus according to an embodiment comprises a paper feeding section configured to supply to a conveying path a paper on which images are formed by a heat-erasable coloring material, a sensor configured to output a sensor signal indicative of a thickness of the paper, and a paper thickness detector configured to determine the thickness of the paper based on the sensor signal. The color erasing apparatus further comprises a color erasing section including a heat source configured to heat the paper; and a heat source temperature controller configured to control the heat source in the color erasing section to a predetermined temperature based on the determined thickness of the paper. | 10-10-2013 |