Abstract: A sheet post-processing device is connected to a punch processing unit. The punch processing unit includes a skew detection unit and a punch unit. The skew detection unit detects a skew amount of a sheet. The punch unit forms punch holes at positions of the sheet according to the skew amount. The sheet post-processing device includes a processing tray, a paddle, a driver, and a control unit. The sheet of which the skew amount is detected by the skew detection unit is mounted on the processing tray. The paddle conveys the sheet on the processing tray by a paddle operation. The driver drives the paddle to perform the paddle operation. The control unit is configured to operate the driver to control a number of times the paddle operation is performed by the paddle based on the skew amount.

Abstract: A sheet post-processing device is connected to a punch processing unit. The punch processing unit includes a skew detection unit and a punch unit. The skew detection unit detects a skew amount of a sheet. The punch unit forms punch holes at positions of the sheet according to the skew amount. The sheet post-processing device includes a processing tray, a paddle, a driver, and a control unit. The sheet of which the skew amount is detected by the skew detection unit is mounted on the processing tray. The paddle conveys the sheet on the processing tray by a paddle operation. The driver drives the paddle to perform the paddle operation. The control unit is configured to operate the driver to control a number of times the paddle operation is performed by the paddle based on the skew amount.

Abstract: A sheet post-processing apparatus includes a control unit. When performing binding for binding a plurality of sheets a plurality of times continuously, the controller measures the processing time required for the binding during first binding and notifies an image forming apparatus of a post-processing time including the measured processing time.

Abstract: A sheet post-processing apparatus includes a control unit. When performing binding for binding a plurality of sheets a plurality of times continuously, the controller measures the processing time required for the binding during first binding and notifies an image forming apparatus of a post-processing time including the measured processing time.

Abstract: A sheet processing apparatus includes a processing tray; a conveyance roller for conveying a sheet towards a downstream side in a sheet conveyance direction; a pinch roller for moving between a first position away from the conveyance roller and a second position close to the conveyance roller, and to sandwich the sheet with the conveyance roller at the second position when the sheet is conveyed by the conveyance roller. The apparatus further includes an extruding member for extruding an upstream end of the sheet from the upstream side towards the downstream side to convey the sheet placed on the processing tray. The apparatus additionally includes a controller for conveying the sheet with the extruding member after the sheet is conveyed by the pinch roller and the conveyance roller when the sheet on the processing tray is conveyed to the downstream side in the sheet conveyance direction.

Abstract: A post-processing apparatus for an image forming apparatus includes a processing tray on which a sheet bundle is placed for discharging onto a discharge tray, a detector configured to detect presence or absence of the sheet bundle on the processing tray, and a controller. The controller is configured to control driving of the processing tray to discharge the sheet bundle onto the discharge tray and to determine whether or not to output an error if a detection result of the detector after the processing tray has been driven to discharge the sheet bundle onto the discharge tray indicates presence of the sheet bundle. The controller outputs the error if the sheet bundle is not a last sheet bundle of a post-processing job and does not output the error if the sheet bundle is the last sheet bundle of the post-processing job.

Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet, a cassette configured to accommodate sheets to be supplied to the image forming unit, an opening mechanism configured to open the cassette, a motion sensor configured to detect a motion of a person, and a processor configured to control the opening mechanism to open the cassette in response to the motion sensor detecting a specific motion of a person.

Abstract: An image processing apparatus for decoloring a decolorable toner image formed on one or more sheets, includes an image processing unit comprising a controller and an image heating section, wherein the image heating section is selectively operable at a toner fixing temperature and an image decoloring temperature that is higher than the toner fixing temperature, a communication interface configured to communicate with an external decoloring device, and a user input section. The controller, upon receiving a request to decolor one or more sheets that is made through the user input section, determines which of the image heating section and the external decoloring device will be the first available to decolor the one or more sheets.

Abstract: A sheet processing apparatus includes a processing tray; a conveyance roller for conveying a sheet towards a downstream side in a sheet conveyance direction; a pinch roller for moving between a first position away from the conveyance roller and a second position close to the conveyance roller, and to sandwich the sheet with the conveyance roller at the second position when the sheet is conveyed by the conveyance roller. The apparatus further includes an extruding member for extruding an upstream end of the sheet from the upstream side towards the downstream side to convey the sheet placed on the processing tray. The apparatus additionally includes a controller for conveying the sheet with the extruding member after the sheet is conveyed by the pinch roller and the conveyance roller when the sheet on the processing tray is conveyed to the downstream side in the sheet conveyance direction.

Abstract: A sheet processing apparatus includes a processing tray, a conveyance roller, an extrusion member, a pinch roller and a controller. The conveyance roller is arranged at a downstream side of the processing tray in a sheet conveyance direction, and conveys the sheet. The extrusion member extrudes an end of an upstream side in the sheet conveyance direction of the sheet placed on the processing tray to the downstream side. The pinch roller moves to a rotation position at the time of conveying the sheet by the conveyance roller to sandwich the sheet with the conveyance roller. The controller controls the pinch roller and the conveyance roller to convey the sheet using the pinch roller and the conveyance roller when the sheet placed on the processing tray is conveyed to the downstream side in the sheet conveyance direction.

Abstract: A sheet processing system according to an embodiment includes a tray that supports a sheet on opposite sides of the sheet orthogonal to a conveyance direction of the sheet. The tray includes a first adjustable support and second adjustable support positioned opposite the first adjustable support in the direction orthogonal to the conveyance direction of the sheet. A skew sensor detects a skew angle of the sheet conveyed to the tray. A corner sensor detects positions of each corner on a front end in the downstream direction of the sheet conveyed to the tray. A controller controls movement of the first and second adjustable supports based on the detected skew angle and the detected positions of each corner on the front end of the sheet conveyed to the tray so that the sheet is conveyed to the tray without jamming.

Abstract: A post-processing apparatus includes a processing tray for stacking a sheet and a detection sensor for detecting the presence or absence of the sheet placed on the processing tray. The post-processing apparatus includes a pinch roller for moving towards the processing tray if the detection sensor does not detect the sheet, and a longitudinal alignment roller configured to rotate by a predetermined amount while sandwiching the sheet in the processing tray with the pinch roller to elongate the sheet. By holding a rear end of the sheet in the processing tray with a paddle section and elongating the sheet towards the downstream side with the longitudinal alignment roller, the presence or absence of the sheet is detected by the detection sensor.

Abstract: An image processing apparatus for decoloring a decolorable toner image formed on one or more sheets, includes an image processing unit comprising a controller and an image heating section, wherein the image heating section is selectively operable at a toner fixing temperature and an image decoloring temperature that is higher than the toner fixing temperature, a communication interface configured to communicate with an external decoloring device, and a user input section. The controller, upon receiving a request to decolor one or more sheets that is made through the user input section, determines which of the image heating section and the external decoloring device will be the first available to decolor the one or more sheets.

Abstract: A sheet processing apparatus includes a processing tray, a conveyance roller, an extrusion member, a pinch roller and a controller. The conveyance roller is arranged at a downstream side of the processing tray in a sheet conveyance direction, and conveys the sheet. The extrusion member extrudes an end of an upstream side in the sheet conveyance direction of the sheet placed on the processing tray to the downstream side. The pinch roller moves to a rotation position at the time of conveying the sheet by the conveyance roller to sandwich the sheet with the conveyance roller. The controller controls the pinch roller and the conveyance roller to convey the sheet using the pinch roller and the conveyance roller when the sheet placed on the processing tray is conveyed to the downstream side in the sheet conveyance direction.

Abstract: A sheet processing system according to an embodiment includes a tray that supports a sheet on opposite sides of the sheet orthogonal to a conveyance direction of the sheet. The tray includes a first adjustable support and second adjustable support positioned opposite the first adjustable support in the direction orthogonal to the conveyance direction of the sheet. A skew sensor detects a skew angle of the sheet conveyed to the tray. A corner sensor detects positions of each corner on a front end in the downstream direction of the sheet conveyed to the tray. A controller controls movement of the first and second adjustable supports based on the detected skew angle and the detected positions of each corner on the front end of the sheet conveyed to the tray so that the sheet is conveyed to the tray without jamming.

Abstract: A post-processing apparatus for an image forming apparatus includes a processing tray on which a sheet bundle is placed for discharging onto a discharge tray, a detector configured to detect presence or absence of the sheet bundle on the processing tray, and a controller. The controller is configured to control driving of the processing tray to discharge the sheet bundle onto the discharge tray and to determine whether or not to output an error if a detection result of the detector after the processing tray has been driven to discharge the sheet bundle onto the discharge tray indicates presence of the sheet bundle. The controller outputs the error if the sheet bundle is not a last sheet bundle of a post-processing job and does not output the error if the sheet bundle is the last sheet bundle of the post-processing job.

Abstract: An image processing apparatus includes a first image processing unit comprising a first image heating portion, wherein the first image heating portion is selectively operable at a toner fixing temperature and a higher, image decoloring, temperature and thus can perform both image fixing and image decoloring therein, and a second image processing unit comprising a second image heating portion. At least one of the first and second image processing units further comprises a user input section for receiving a request to decolor one or more sheets. Upon receiving a user input to the input section requesting decoloring of one or more sheets, a controller of the image processing unit to which the request was input determines the operating status thereof, and determines if the request to decolor the one or more sheets can be currently performed therein.

Abstract: An image processing apparatus includes a first image processing unit comprising a first image heating portion, wherein the first image heating portion is selectively operable at a toner fixing temperature and a higher, image decoloring, temperature and thus can perform both image fixing and image decoloring therein, and a second image processing unit comprising a second image heating portion. At least one of the first and second image processing units further comprises a user input section for receiving a request to decolor one or more sheets. Upon receiving a user input to the input section requesting decoloring of one or more sheets, a controller of the image processing unit to which the request was input determines the operating status thereof, and determines if the request to decolor the one or more sheets can be currently performed therein.

Abstract: A post-processing apparatus for an image forming apparatus includes a processing tray on which a sheet bundle is placed for discharging onto a discharge tray, a detector configured to detect presence or absence of the sheet bundle on the processing tray, and a controller. The controller is configured to control driving of the processing tray to discharge the sheet bundle onto the discharge tray and to determine whether or not to output an error if a detection result of the detector after the processing tray has been driven to discharge the sheet bundle onto the discharge tray indicates presence of the sheet bundle. The controller outputs the error if the sheet bundle is not a last sheet bundle of a post-processing job and does not output the error if the sheet bundle is the last sheet bundle of the post-processing job.

Abstract: A sheet processing system according to an embodiment includes a tray that supports a sheet on opposite sides of the sheet orthogonal to a conveyance direction of the sheet. The tray includes a first adjustable support and second adjustable support positioned opposite the first adjustable support in the direction orthogonal to the conveyance direction of the sheet. A skew sensor detects a skew angle of the sheet conveyed to the tray. A corner sensor detects positions of each corner on a front end in the downstream direction of the sheet conveyed to the tray. A controller controls movement of the first and second adjustable supports based on the detected skew angle and the detected positions of each corner on the front end of the sheet conveyed to the tray so that the sheet is conveyed to the tray without jamming.