Abstract: A sheet stacking apparatus includes a sheet discharge tray that holds a discharged sheet and that moves up and down, and a sheet discharge roller that is located above the sheet discharge tray and that discharges the discharged sheet to the sheet discharge tray. The sheet discharge tray receives the discharged sheet from the sheet discharge roller at a standard sheet receiving position which is located at a predetermined downward distance away from the sheet discharge roller. The sheet discharge tray moves down to a position which is lower than the standard sheet receiving position for a predetermined distance and receives at least a next sheet at the position, when a stacked amount of sheets on the sheet discharge tray reaches a predetermined stacking amount.

Abstract: A sheet discharging apparatus including a sheet discharging device which discharges a sheet on a sheet discharging tray. A sheet tip portion guide device holds thereupon a tip portion of the sheet discharged from the sheet discharging device, guides the sheet in a sheet discharging direction while holding the tip portion of the sheet thereupon, and releases the sheet by releasing the tip portion of the sheet held thereupon.

Abstract: A sheet stacking apparatus includes a sheet discharge tray that holds a discharged sheet and that moves up and down, and a sheet discharge roller that is located above the sheet discharge tray and that discharges the discharged sheet to the sheet discharge tray. The sheet discharge tray receives the discharged sheet from the sheet discharge roller at a standard sheet receiving position which is located at a predetermined downward distance away from the sheet discharge roller. The sheet discharge tray moves down to a position which is lower than the standard sheet receiving position for a predetermined distance and receives at least a next sheet at the position, when a stacked amount of sheets on the sheet discharge tray reaches a predetermined stacking amount.

Abstract: A sheet stacking apparatus includes a sheet discharge tray that holds a discharged sheet and that moves up and down, and a sheet discharge roller that is located above the sheet discharge tray and that discharges the discharged sheet to the sheet discharge tray. The sheet discharge tray receives the discharged sheet from the sheet discharge roller at a standard sheet receiving position which is located at a predetermined downward distance away from the sheet discharge roller. The sheet discharge tray moves down to a position which is lower than the standard sheet receiving position for a predetermined distance and receives at least a next sheet at the position, when a stacked amount of sheets on the sheet discharge tray reaches a predetermined stacking amount.

Abstract: A sheet discharging apparatus including a sheet discharging device which discharges a sheet on a sheet discharging tray. A sheet tip portion guide device holds thereupon a tip portion of the sheet discharged from the sheet discharging device, guides the sheet in a sheet discharging direction while holding the tip portion of the sheet thereupon, and releases the sheet by releasing the tip portion of the sheet held thereupon.

Abstract: A sheet discharging apparatus including a sheet discharging device which discharges a sheet on a sheet discharging tray. A sheet tip portion guide device holds thereupon a tip portion of the sheet discharged from the sheet discharging device, guides the sheet in a sheet discharging direction while holding the tip portion of the sheet thereupon, and releases the sheet by releasing the tip portion of the sheet held thereupon.

Abstract: A sheet processing apparatus includes a staple tray that stacks a sheet discharged from an image forming apparatus, a rear end fence that vertically aligns the sheet stacked on the staple tray by hitting a tail end of the sheet in a conveying direction against the rear end fence, and a stapling device that executes a stapling operation at an end of a bundle of the sheets. A limiting member is movable in a direction of a thickness of the bundle of sheets stacked on the staple tray, in which a distance between the limiting member and a sheet stacking face of the staple tray guiding the sheet to the rear end fence is variable.

Abstract: A subsequent paper treatment apparatus stably conveys a bound recording paper bundle toward a paper discharging tray. A discharging claw 10a of the discharging belt is pressed to the rear edge of the bound recording paper bundle. when a discharging belt is moved and thereby the recording paper bundle is also moved toward a paper discharging tray, if the recording paper bundle not heavy, the jogger fence presses the side surface of the recording paper bundle in order to apply a conveying resistance thereto, and thereby bounding of the recording paper bundle can be prevented.

Abstract: An automatic document feeder for use with an electrophotographic copier, digital copier or similar image recorder capable of transporting ordinary documents in the form of separate sheets and a continuous document in the form of computer form (CF) paper which is formed with equally spaced sprocket holes, as desired. A sprocket hole sensor is disposed on an imaginary line along which the sprocket holes of the CF paper are moved. A control device reversibly controls the transport of the CF paper to a predetermined reference position on a glass platen in association with the number of sprocket holes being counted. The document feeder is capable of not only copying a desired page of the CF paper but also implementing jam recovery in the event when a paper sheet jams the image recorder.

Abstract: An automatic document feeder for use with an electrophotographic copier, digital copier or similar image recorder capable of transporting ordinary documents in the form of separate sheets and a continuous document in the form of computer form (CF) paper which is formed with equally spaced sprocket holes, as desired. A sprocket hole sensor is disposed on an imaginary line along which the sprocket holes of the CF paper are moved. A control device reversibly controls the transport of the CF paper to a predetermined reference position on a glass platen in association with the number of sprocket holes being counted. The document feeder is capable of not only copying a desired page of the CF paper but also implementing jam recovery in the event when a paper sheet jams the image recorder.

Abstract: A finisher capable of binding a stack of sheets at a plurality of desired positions by a single stapler. When a plurality of stacks of sheets should be each stapled at two positions, the stapler is controlled such that the last stapling position of the preceding stack is the position where the following stack is stapled first.

Abstract: A recycling automatic document feeder (RADF) for use with a copier or similar equipment for feeding a stack of documents to an illuminating position one by one, then returning each document, and repeating the cycle to illuminate the documents a plurality of times. A gate pawl is located movable into and out of contact with a document table. A feeding section has feeding means for feeding, a stack of documents on the table one by one. A transporting section transports the document fed from the feeding section to a predetermined illuminating position and, then, discharges the document. A returning section turns over the document transported by transporting means. The returning section returns the document discharged to the top of the stack of documents. Sensors sense a condition in which the documents are fed or transported.

Abstract: An automatic document feeder (ADF) for use with an electrophotographic copier, digital copier or similar image recorder for selectively feeding ordinary documents in the form of separate sheets and a continuous document in the form of computer form (CF) paper. Sprocket holes formed through the CF paper are sensed to controllably transport and stop the CF paper on the basis of the number of sensed holes. Slippage of the CF paper apt to occur when the paper begins to be transported and when it is transported by a belt that faces a glass platen is prevented from being erroneously determined to be a jam. Cuts intervening between nearby sprocket holes for temporarily fastening a carbon to the CF paper are prevented from being sensed as the sprocket holes.

Abstract: A finisher for use with a copier, printer or similar image forming apparatus for stapling or otherwise finishing paper sheets sequentially driven out of the apparatus. A paper sheet is introduced in a stapling section of a stapling device by being switched back, while being accurately guided by a guide member having a sufficient length. The stapling device is movable, independently of jogger fences which position paper sheets, to a particular position which is optimal for the size of stacked paper sheets and the position in which they are used. When a staple error detector detects a stapling error, a discharge path in use is switched over to another path. When a stapled paper stack is discharged, it is deformed in a wave-like configuration in a direction perpendicular to an intended direction of transport to be provided with a certain degree of rigidity. This allows the stapled paper stack to be driven out stably, epecially without being loosened at the discharge side.

Abstract: A copier with an automatic document feeder (ADF) which causes the ADF to automatically feed a document to a predetermined position on a glass platen and causes optics in the form of a scanner for exposure to move for illuminating the document on the glass platen. The copier changes a document stop position on a glass platen and a home position of the scanner depending upon size of a document to be fed by the ADF or the size of paper sheets for reproducing the document thereon.

Abstract: A copying apparatus includes an automatic document feeder, a document size detecting part provided on the automatic document feeder for detecting a size of a document, a contact glass on which the document is set automatically by the automatic document feeder, a stopping position control device for controlling a stopping position of the document on the contact glass depending on the size of the document detected in the document size detecting part, an optical scanning device for scanning the document on the contact glass, and a scanning range control part for controlling a scanning range of the optical scanning device depending on the stopping position of the document.

Abstract: An automatic original sheet feeding apparatus for carrying original sheets mounted on an original sheet mounting table to a predetermined work position and then through an ejection roller to an original sheet receiver, successively, is disclosed, in which the ejection roller is braked while ejecting the original sheet to thereby eject said original sheet onto a region in the vicinity of the ejection roller without substantial inertia.