Abstract: Provided is a sheet processing apparatus connected to an image forming apparatus, including: an intermediate process tray which receives sheets delivered from the image forming apparatus as a sheet stack; a process unit which applies a predetermined process for the sheet stack received on the intermediate process tray; a pair of rollers which nips and delivers the sheet stack subjected to the predetermined process by the process unit; a stack tray which receives the sheet stack delivered by the pair of rollers; and a controller moves one roller of the pair of rollers to a standby position corresponding to a thickness of the sheet stack to be delivered onto the stack tray.

Abstract: The present invention is characterized in a sheet processing apparatus comprising a sheet processing device which binds a sheet stack with a binder and cuts off an excess part of the binder; a first containing portion which contains at least one binder excess cut off by the sheet processing device; a second containing portion which can contain the at least one binder excess contained in the first containing portion; and a controller which controls movement of the at least one binder excess contained in the first containing portion to the second containing portion on the basis of the volume of the at least one binder excess in the first containing portion.

Abstract: There is provided a sheet conveying apparatus which is capable of easily distinguishing between a sheet bundle containing abnormal sheets, such as multi-fed sheets, and a normal sheet bundle. When it is determined that there is no abnormality in the conveyance of sheets to a processing tray (630), a finisher control section (501) causes a bundle of sheets stacked on the processing tray (630) to be discharged onto a stack tray (700), whereas when it is determined that there is abnormality in the conveyance of sheets to the processing tray (630), the finisher control section (501) causes the bundle of the sheets stacked on the processing tray (630) to be discharged onto a sample tray (701).

Abstract: There is provided a sheet conveying apparatus which is capable of easily distinguishing between a sheet bundle containing abnormal sheets, such as multi-fed sheets, and a normal sheet bundle. When it is determined that there is no abnormality in the conveyance of sheets to a processing tray 630, a finisher control section 501 causes a bundle of sheets stacked on the processing tray 630 to be discharged onto a stack tray 700, whereas when it is determined that there is abnormality in the conveyance of sheets to the processing tray 630, the finisher control section 501 causes the bundle of the sheets stacked on the processing tray 630 to be discharged onto a sample tray 701.

Abstract: A sheet handling apparatus is provided, which is comprised of a plurality of inserter trays for stacking thereon insert sheets to be inserted between recording sheets having images formed thereon. Sheet feeding modes for feeding insert sheets include two kinds, i.e. S-stacking mode and F-stacking mode, that can be set by a mode key displayed on a sheet feeding mode setting screen view. In the S-stacking mode, only first-page insert sheets are stacked on a first inserter tray, and only second-page insert sheets and third-page insert sheets are stacked on second and third inserter trays, respectively. In the F-stacking mode, insert sheets are stacked in order of page on an inserter tray. Sheet feeding is suitably controlled by stacking insert sheets on inserter trays in manners corresponding to respective selected stacking modes.

Abstract: Whether an image to be formed has a prescribed M×N pixel pattern is determined by a comparator. If it is determined that the image has the prescribed M×N pixel pattern, then a light-quantity correction signal that is for reducing the current that flows through a semiconductor laser is output to a laser driving circuit when the laser emits a laser beam of a pixel of interest contained in the M×N pixel pattern.

Abstract: A sheet processing apparatus comprising a sheet stacking member for stacking a sheet to be discharged, and an offset mounting member for offsetting a plurality of sheet bundles on sides in a sheet bundle takeout direction and in a direction opposite thereto, and mounting the offset bundles onto the sheet stacking member. The offset mounting member mounts the first sheet bundle on the side in the sheet bundle takeout direction. When there is a sheet bundle on the sheet stacking member, the first sheet bundle is mounted by offsetting the first sheet bundle in a direction opposite to that of the last sheet bundle mounted.

Abstract: An image forming apparatus has a first stacking unit for stacking regular sheets on which images are formed, an image forming unit for forming an image on a regular sheet fed from the first stacking unit, a second stacking unit for stacking the insertion sheets, a delivery unit for discharging the regular sheets from the image forming unit and the insertion sheets from the second stacking unit into a single sheet discharge section, and a paper thickness detection unit provided on a common carrier path through which the regular sheets carried from the image forming unit and the insertion sheets delivered from the second stacking unit are transported for detecting the thickness of the regular sheets and the insertion sheets.

Abstract: An image forming apparatus has a first stacking unit for stacking regular sheets on which images are formed, an image forming unit for forming an image on a regular sheet fed from the first stacking unit, a second stacking unit for stacking the insertion sheets, a delivery unit for discharging the regular sheets from the image forming unit and the insertion sheets from the second stacking unit into a single sheet discharge section, and a paper thickness detection unit provided on a common carrier path through which the regular sheets carried from the image forming unit and the insertion sheets delivered from the second stacking unit are transported for detecting the thickness of the regular sheets and the insertion sheets.

Abstract: An image formation apparatus for executing image formation by exposing an image carrier with irradiation light emitted from a laser source on the basis of an input signal to drive the laser source includes a correction amount calculation unit configured to calculate, on the basis of a generated correction pattern, a correction amount to control the ON or OFF timing to drive the laser source, and a signal generation unit configured to generate, on the basis of image data and the correction amount calculated by the correction amount calculation unit, a corrected signal obtained by correcting the input signal to drive the laser source so as to form the image data by controlling the ON or OFF timing.

Abstract: There is provided a sheet conveying apparatus which is capable of easily distinguishing between a sheet bundle containing abnormal sheets, such as multi-fed sheets, and a normal sheet bundle. When it is determined that there is no abnormality in the conveyance of sheets to a processing tray 630, a finisher control section 501 causes a bundle of sheets stacked on the processing tray 630 to be discharged onto a stack tray 700, whereas when it is determined that there is abnormality in the conveyance of sheets to the processing tray 630, the finisher control section 501 causes the bundle of the sheets stacked on the processing tray 630 to be discharged onto a sample tray 701.

Abstract: A linear motor for giving thrust to a movable unit capable of linearly moving freely in one direction with respect to a stator, comprising a plurality of permanent magnets arranged on the base side by lining up a positive pole and a negative pole in the one direction; and a plurality of flat shaped coils arranged along the arrangement direction of permanent magnets and fixed as armatures to said movable unit side so as to face the permanent magnets by leaving an electromagnetic gap; wherein a coil fixed surface on the stage side is provided a recessed portion for defining an air gap between the coil fixed surface and said coils.

Abstract: A drive signal for driving a semiconductor laser is generated on the basis of an image signal inputted in synchronism with a pixel clock. A bias signal to the semiconductor laser is generated at a timing earlier than the drive signal by a predetermined time. The bias-signal is disabled in synchronism with the leading edge of the drive signal.

Abstract: There is provided a sheet conveying apparatus which is capable of easily distinguishing between a sheet bundle containing abnormal sheets, such as multi-fed sheets, and a normal sheet bundle. When it is determined that there is no abnormality in the conveyance of sheets to a processing tray 630, a finisher control section 501 causes a bundle of sheets stacked on the processing tray 630 to be discharged onto a stack tray 700, whereas when it is determined that there is abnormality in the conveyance of sheets to the processing tray 630, the finisher control section 501 causes the bundle of the sheets stacked on the processing tray 630 to be discharged onto a sample tray 701.

Abstract: A punching apparatus having a punching member which effects punching on a sheet, and a driving mechanism which moves the punching member in a sheet width direction intersecting with a sheet conveying direction. On the basis of the difference between the position of a current sheet and the position of a next sheet succeeding thereto detected by a detecting sensor which detects the position of each conveyed sheet in the sheet width direction, at a position upstream of the punching member, the punching member is moved by the driving mechanism along the sheet width direction from a punching position for the current sheet to a punching position for the next sheet.

Abstract: A sheet processing apparatus comprising a sheet stacking member for stacking a sheet to be discharged, and an offset mounting member for offsetting a plurality of sheet bundles on sides in a sheet bundle takeout direction and in a direction opposite thereto, and mounting the offset bundles onto the sheet stacking member. The offset mounting member mounts the first sheet bundle on the side in the sheet bundle takeout direction. When there is a sheet bundle on the sheet stacking member, the first sheet bundle is mounted by offsetting the first sheet bundle in a direction opposite to that of the last sheet bundle mounted.

Abstract: A sheet processing apparatus which is capable of improving operability while suppressing an increase in apparatus size. In a front cover insertion mode, an insertion sheet for a front cover is inserted into a bundle of sheets on which images have been formed, and in a rear cover insertion mode, an insertion sheet for a rear cover is inserted into the bundle of sheets. Insertion sheets for the front cover and insertion sheets for the rear cover are set with the same orientation in a manual feed tray 105. An insertion sheet for the front cover stored in the manual feed tray 105 is conveyed to a finisher 500 in one of a face-down state and a face-up state. An insertion sheet for the rear cover stored in the manual feed tray 105 is conveyed to the finisher 500 in the other of the face-down state and the face-up state. The insertion sheets for the front cover and for the rear cover conveyed from the manual feed tray 105 and the sheets on which images have been formed are stacked on the finisher 500.

Abstract: The invention comprises registration roller pairs which detect a skew amount of a sheet being conveyed; registration roller pairs which perform skew correction of the sheet while the sheet is being conveyed; a punch unit which performs punching of the sheet; a punch-unit driving portion which drives the punch unit; a sheet-edge detecting sensor which performs detection of a sheet edge in a direction intersecting with a sheet conveyance direction; a punch-unit moving device which moves the punch unit in the direction intersecting with the sheet conveyance direction; a sheet detecting sensor which performs detection of a sheet position in the sheet conveyance direction; and a controller portion which performs control such that after skew of the sheet is corrected by the registration roller pairs in accordance with detection results of skew amount sensors, and punching is performed on the sheet by the punch-unit moving device and the punch driving portion in accordance with a detection result of the sheet detect

Abstract: Sheet thickness data obtained from the output of a sheet thickness detecting sensor are calculated to thereby calculate a sheet bundle thickness. When the sheet bundle thickness reaches a predetermined value, other aftertreatment differing from a set aftertreatment is executed.

Abstract: There is provided an image forming system which is capable of performing image formation operations in an order identical or close to the order of reception of inputted print jobs even when some printers cannot output print jobs due to maintenance to thereby raise the operational efficiency. Scheduling is carried out to assign an inputted plurality of jobs to a plurality of image forming apparatuses. Respective maintenance times of the plurality of image forming apparatuses are monitored. When the result of monitoring is that the maintenance time of an image forming apparatus has been reached, scheduling is carried out to reassign unprocessed jobs out of the assigned jobs to image forming apparatuses other than the image forming apparatus for which the maintenance time has been reached. A CPU causes the other image forming apparatuses to perform image formation based on the reassigned unprocessed jobs.