Abstract: A sheet-processing system can perform a plurality of jobs in parallel. While process 1 and process 2 are being processed simultaneously, a job display screen is segmented into two such that segmented job display screens for process 1 and process 2 are simultaneously displayed in a touch panel display frame of an operation display. Accordingly, the operation display in the sheet-processing system exhibits good visibility.

Abstract: When a sheet bundle is being conveyed by any one pair of plural pairs of rollers independently movable toward and away from the bundle sheet, before the bound portion of the sheet bundle passes the pair of rollers, the pair of rollers on the downstream side nearest to the bound portion are separated from the sheet bundle, and the pairs of rollers more downstream than that pair convey the sheet bundle. Thereby, it happens less often that the pairs of rollers gather the air collected between adjacent ones of the sheets of the sheet bundle to the bound portion to thereby cause a slack to the sheets, and the occurrence of wrinkles or twists in the sheet bundle can be reduced. Also, the pair of rollers are separated from the sheet bundle before the bound portion passes the pair of rollers, whereby it happens less often that the pair of rollers are damaged by the bound portion, and the sheet bundle can be conveyed smoothly.

Abstract: The sheet processing apparatus is equipped with a process tray on which sheets conveyed are stacked, a return belt which moves the sheets stacked on the process tray, a trailing edge stopper which receives an end portion of the sheets moved by the return belt, and a conveyance assist roller which comes into contact with the sheets on the upstream side of the return belt with respect to the sheet moving direction and imparts a load to the movement of the sheets. The return belt moves the sheets to which a load has been imparted by the conveyance assist roller and causes them to be abutted on the trailing edge stopper.

Abstract: A sheet processing apparatus includes a processing tray on which sheets are stacked in a bundle form, an intermediate portion stapler which staples the intermediate portion of the sheet bundle stacked on the processing tray, a sheet bundle conveying member which conveys the stapled sheet bundle, a curved sheet bundle conveying path which is downwardly curved on the downstream side of the processing tray with respect to the sheet conveying direction and adapted to guide the sheet bundle conveyed by the sheet bundle conveying member, and a folding device which is arranged in the intermediate portion of the curved sheet bundle conveying path and which folds the stapled sheet bundle, wherein the processing tray is set to be lower on the upstream side than on the downstream side with respect to the sheet conveying direction, and wherein the curved guide path has an extended portion extending to a position under the stacking portion.

Abstract: A folded back portion flattening device includes a gripper and a presser. The gripper grips a sheet bundle formed into a booklet with the folded back portion protruding from the gripper. The presser presses the folded back portion of the sheet bundle gripped by the gripper, and includes pressing rollers which have pressing rotational surfaces and which are disposed along the folded back portion. The pressing rotational surfaces press the folded back portion. The pressing rollers are disposed so that the rotational pressing surface of a second pressing roller, which presses the folded back portion after the rotational pressing surface of a first pressing roller has pressed the folded back portion, presses deeper into an edge of the sheet bundle than the rotational pressing surface of the first pressing roller. At least one of the gripper and presser is movable in a direction parallel to the folded back portion.

Abstract: A sheet processing device includes a pair of gripping rollers which can grip and convey a sheet bundle in a booklet-like form, a pressing roller which presses and flattens the folded back portion of the sheet bundle gripped by the gripping rollers, and a control unit which performs rotation control on the pair of gripping rollers. The control unit controls the gripping rollers so as to stop when the folded back portion of the sheet bundle protrudes from the rollers by a predetermined amount. The pressing roller flattens down the protruding folded back portion when the gripping rollers are stopped by the control unit and is in the state of gripping the sheet bundle.

Abstract: A sheet processor includes a holding unit for holding a folded batch of sheets, a pressing member for pressing against a folded portion of the batch of sheets, a nipping member for nipping portions of the batch adjacent to the folded portion so as to nip the batch of sheets from opposite directions, and a casing for supporting the pressing member and the nipping member.

Abstract: A sheet bundle spine folded portion flattening apparatus is provided with a conveying portion which conveys the folded sheet bundle with the spine folded portion of the folded sheet bundle at a head, a sheet bundle moving device for moving it in a direction along the spine folded portion of the sheet bundle, and a pressing device for pressing the spine folded portion of the sheet bundle being moved by the sheet bundle moving device, and is adapted to press and flatten the spine folded portion of the sheet bundle being moved by the sheet bundle moving device, by the pressing device and therefore, can flatten the spine folded portion almost without stopping the movement of the sheet bundle, as compared with the conventional art, and the sheet bundle treating efficiency is enhanced.

Abstract: A sheet processing system comprises a plurality of sheet processing devices, a primary sheet conveyance path, a secondary sheet conveyance path, and a controller which controls the sheet processing devices. The controller uses the primary sheet conveyance path to execute one job, and uses the secondary sheet conveyance path to execute another job in parallel with that one job.

Abstract: To provide a sheet processing system having a high productivity that can execute plural jobs in parallel, one job of loading a sheet on which an image is formed in the printer to the sheet stacking device and another job served as bookbinding job of bundling and binding a plurality of special sheets stored in the inserter in the finisher to output are executed in parallel.

Abstract: A sheet-processing system can perform a plurality of jobs in parallel. While process 1 and process 2 are being processed simultaneously, a job display screen is segmented into two such that segmented job display screens for process 1 and process 2 are simultaneously displayed in a touch panel display frame of an operation display. Accordingly, the operation display in the sheet-processing system exhibits good visibility.

Abstract: In a sheet processing system capable of executing plural jobs in parallel, each job being actuated by one of the sheet processing units or by a combination of plural sheet processing units (printer and a sheet stacking unit, an inserter and a finisher), when a detection sensor detects that a cover is open, a CPU circuit section executes stop control for a job using a horizontal conveying path and pairs of conveying rollers accessible through an opening in the cover and other job not using a portion accessible through the opening in the cover.

Abstract: There is provided an image forming apparatus that is capable of preventing input errors and eliminating the necessity of complicated input operations in making settings for a sheet mixing operation in which color image output sheets and black-and-white image output sheets are mixed into one group. A stacker tray stores sheets with color images formed thereon by a color MFP and is equipped with a storage device, into and from which information relating to the sheets can be written and read. A black-and-white MFP operates in response to attachment of the stacker tray to an inserter attached to the black-and-white MFP, to execute an image formation job by providing control such that the sheets with color images formed thereon stored in the stacker tray and sheets with black-and-white images formed thereon by the black-and-white MFP are mixed according to the information stored in the storage device of the stacker tray.

Abstract: A filter unit includes a corrugated filter, and a casing for containing the filter. A reinforcement member is formed by casting a resin material into at least one recess of the filter.

Abstract: The present invention relates to a filter unit comprising a corrugated filter, a casing for containing the filter and a reinforcement member formed by casting a resin material into one recess of the filter at least.