Abstract: An apparatus for post-processing sheets which is installed at a discharge end of a longitudinal discharge type image forming apparatus includes a tamper which arranges opposite ends of one side of a longitudinal direction of a sheet stack discharged from the discharge end in a first direction and stacked as many as a preset number of sheets, and transfers the arranged sheet stack in a second direction perpendicular to the first direction; and a sheet post-processing unit which performs post-processing in parallel with a longitudinal end of the sheet stack transferred in the second direction by the tamper or performs post-processing while being rotated by an arbitrary angle with respect to a corner end portion of the sheet stack.

Abstract: An apparatus for post-processing sheets which is installed at a discharge end of a longitudinal discharge type image forming apparatus includes a tamper which arranges opposite ends of one side of a longitudinal direction of a sheet stack discharged from the discharge end in a first direction and stacked as many as a preset number of sheets, and transfers the arranged sheet stack in a second direction perpendicular to the first direction; and a sheet post-processing unit which performs post-processing in parallel with a longitudinal end of the sheet stack transferred in the second direction by the tamper or performs post-processing while being rotated by an arbitrary angle with respect to a corner end portion of the sheet stack.

Abstract: An apparatus for post-processing sheets which have been discharged by a preset number of sheets and arranged in a compiler which is a temporary storage space. The apparatus is installed at a discharge end of a longitudinal discharge type image forming apparatus. The apparatus includes a sheet post-processing unit rotatably installed at one side of the compiler, which performs post-processing on a sheet stack, while being parallel to a longitudinal direction of the sheet stack which has been arranged according to a set value or being rotated by an arbitrary angle with respect to a corner end portion of the sheet stack. The sheet stack transfer unit transfers the sheet stack, which has been arranged in the compiler, in the same or an opposite direction to that in which the sheets have been discharged.

Abstract: An apparatus for post-processing sheets which have been discharged by a preset number of sheets and arranged in a compiler which is a temporary storage space. The apparatus is installed at a discharge end of a longitudinal discharge type image forming apparatus. The apparatus includes a sheet post-processing unit rotatably installed at one side of the compiler, which performs post-processing on a sheet stack, while being parallel to a longitudinal direction of the sheet stack which has been arranged according to a set value or being rotated by an arbitrary angle with respect to a corner end portion of the sheet stack. The sheet stack transfer unit transfers the sheet stack, which has been arranged in the compiler, in the same or an opposite direction to that in which the sheets have been discharged.

Abstract: Disclosed is a paper discharge apparatus of optimizing the moving path of a stapler provided at the rear of the paper discharge apparatus by effectively constructing the structure of the paper discharge apparatus that discharges paper onto a stacker tray. The paper discharge apparatus includes a pair of guide side plates including first rail grooves and curved cams adjacent to the first rail grooves, a pair of paper gripping units to grip the paper on the paper stacking plate in the contact with the curved cams, a first driving unit to drive the paper gripping units, an aligning stopper provided between the guide side plates to straightly move by a predetermined distance in the paper transfer direction from front end portions of the guide side plates, and a second driving unit to previously move the aligning stopper in the paper transfer direction just before the paper gripping units.

Abstract: A milling unit of a book binding device removes a coating material adhered to cutting surfaces of coating sheets. A book binding device binding a bunch of sheets fed from a sheet aligning unit includes a sheet aligning plate aligning a section of the bunch of sheets fed from the sheet aligning unit; a gripper fixing the bunch of sheets aligned by the sheet aligning plate; an adhesive unit feeding an adhesive member to the section of the bunch of sheets to bind the bunch of sheets; and a milling unit milling the section of the bunch of sheets before the bunch of sheets is subjected to binding by the adhesive unit.

Abstract: Disclosed are a sheet punching apparatus and a method for controlling the same in which the side end position of a sheet, its rear end position, a hole position, and the detachment state of a punch portion are sensed only by two sensors, and a punching hole can be formed at the exact position of a sheet by means of the two sensors.

Abstract: Disclosed is a multiple stapling apparatus that can staple at least two or more parts of a sheet by exactly supporting the sheet a stapling position of a sheet finisher which finishes the sheet ejected from a digital output device. The multiple stapling apparatus includes a clamp shaft (65) parallel to a moving direction of the stapler, a first guide (50) having a first base wall (51) axially rotated around the clamp shaft (65) at a predetermined angle on the clamp shaft, supporting the sheet stacked on the compile tray, and second guides (60a and 60b) having second base walls (61a and 61b) slid along the clamp shaft along with the stapler, supporting the sheet on the compile tray when the first base wall is opened, wherein the first guide is axially rotated at a predetermined angle around the clamp shaft to open the first base wall when the stapler moves at a predetermined distance along the clamp shaft from a hole position (94).

Abstract: A sheet feeding apparatus with a buffer system is disclosed, in which a sheet feeding drum has a certain rotational speed regardless of the size of the sheet to feed a plurality of sheets to a sheet finisher and eject the sheets after exactly aligning them. The sheet feeding apparatus includes sheet feeding grips 36a, 36b, 36c and 36d provided on the outside of a sheet feeding drum 105 at certain intervals, and a sheet feeding grip controller (cam) 42 allowing the sheet feeding grips to selectively grip the sheets moving through the outside of the sheet feeding drum 105. The sheets gripped by the sheet feeding grips are buffered by the end fence and are ejected to a sheet finisher through a sheet ejection path when the end fence is opened.

Abstract: A finishing apparatus in a copying machine is disclosed, which can finish large sized papers without enlarging the size of a tray base. The finishing apparatus includes a jogging assembly 170 aligning papers in left and right directions, a paper contact plate 166 provided with a stapler 196, a paper roller 200 pushing the papers to a paper stacker 134, ends of the papers being positioned in the stapler, a tray base 10 moving in a direction opposite to the paper roller to guide alignment of a set of the papers, and an angle adjusting unit guiding the papers by adjusting a tilt angle of the papers in accordance with the size of the papers.

Abstract: An eject mechanism with a grip in a finisher is disclosed, in which papers ejected from a digital output device are temporarily stacked on a paper eject tray and exactly aligned so that the papers are gripped to move to a stacker tray without scattering. The eject mechanism with a grip in a finisher includes a paper eject tray that temporarily receives papers ejected from a digital output device, a paper moving means gripping the papers received in the paper eject tray to move them, and a stacker tray stacking the papers moved from the paper moving means, wherein the paper moving means includes a guide side plate provided with a rail groove circulating along the papers and a curved cam disposed near the rail groove, a paper grip means driven to grip the papers received in the paper eject tray when it is in contact with the curved cam while moving along the rail groove of the guide side plate, and a driving means that drives the paper grip means to circulate it along the rail groove.

Abstract: A finishing apparatus of an image forming apparatus and a method for controlling the same are disclosed, in which various block modules performing finishing functions are provided and a user can selectively use any module by detachably fixing the same in a copier. The finishing apparatus includes a paper conveyer module detachably fixed to an image tray module, a mail box module, a finisher module, and a booklet module, the paper conveyer module being detachably fixed in a copier. The paper conveyer module includes a controller sensing whether the respective modules are detachably provided to selectively control functions of the respective modules in accordance with an output signal of the copier. In addition, paper path switch devices provided in the paper conveyer module include a plurality of paper dispensers that dispense papers in three or more directions.

Abstract: A tape feeder and a method of controlling the same are disclosed, in which an automatic feeding tape and a manual feeding tape are selectively fed to a binding device.

Abstract: A paper binding system of an image forming apparatus, such as a printer and a copier, and a method for controlling the same are disclosed, in which finishing processes such as stapling and folding are performed by exactly gripping papers ejected from the image forming apparatus without any scattering. The paper binding system of the image forming apparatus includes a paper moving means 150 moving papers ejected from the image forming apparatus, a paper positioning unit 88 temporarily receiving the papers moved from the paper moving means and positioning them, a stapler unit 84 stapling the papers received in the paper positioning unit, a folding means 151 folding the stapled papers, and an eject tray 135 receiving the papers finished through the stapler unit and/or the folding means.

Abstract: Disclosed is a paper processing unit for a binding device that can improve moving efficiency of a sheet of papers and prevent side binding error of the sheet of papers.

Abstract: A stapler moving guide device is disclosed, which can move regardless of a paper conveyer so as to enable multi-stapling at the end of papers and at the same time can move to a side portion at a tilt angle. The stapler moving guide device includes a stapler frame 131 provided with a stapler moving path 133 and a horizontal moving guide 52, a first moving plate 50 reciprocating along the horizontal moving guide, a second moving plate 51 reciprocating on the first moving plate in a direction perpendicular to the horizontal moving guide and moving in parallel with the first moving plate, and a stapler 124 fixed on the second moving plate.

Abstract: A medium stacker is disclosed, which has a structure that effectively processes load externally applied to a stacker tray so as to prevent damage of the medium stacker and an external object from occurring and increases the ascending range of a stacker tray without change of a power transmission structure. The medium stacker includes a basic module frame fixed to a medium unit of a main body of an output device, a stacker tray fixed to the basic module frame to enable the ascending operation, on which ejected papers are stacked, a first guide means provided in the basic module frame, guiding the ascending operation of the stacker tray, a lifting belt ascending the stacker tray along the first guide means, and a belt driving pulley fixed to the lifting belt. The lifting belt includes a first part moving along the belt driving pulley, having one end fixed to the stacker tray, and a second part of an elastic member which is not moving along the belt driving pulley, having one end fixed to the basic module frame.