摘要:
There are provided a sheet processing apparatus and an image forming apparatus which can adjust adhesive strength by a simple configuration.A toner image for adhesive strength adjustment is formed on a toner image of a sheet to be bonded by an image forming portion provided in a copying machine body. An adhesive is applied onto a bonding portion of the sheet by a gluing device provided in a finisher. The bonding portion of the sheet onto which the adhesive is applied and the toner image having the toner image for adhesive strength adjustment of the sheet are bonded together by a second pushing-out member and a pair of second folding rollers provided in the finisher. The amount of toner forming the toner image for adhesive strength adjustment formed by the image forming portion is adjusted to adjust the adhesive strength of the adhesive.
摘要:
A current invention provides a sheet processing apparatus and an image forming apparatus capable of obtaining a sheet bundle which can be double-leaved and released without use of any binding device. A slit S to which a projection Pa provided at an end portion opposite to a side to be bound by a binding portion of a front cover P1 is formed in a back cover P3 of a sheet bundle PA by an insertion portion forming portion. Further, creases L1, L2 for inserting the projection Pa into the slit S while surrounding sheets P2 existing between the front cover P1 and the back cover P2 are formed in the back cover P3 of the sheet bundle PA by a crease forming portion.
摘要:
When a sheet bundle formed on a processing tray descends in a sheet bundle conveying path by a sheet bundle conveying mechanism while a front edge of the sheet bundle is nipped, a band sheet is circled to a front edge side and overlaid to front and back surfaces. The band sheet is perforated at a plurality of positions by a cutter and, thereafter, cut to a necessary length. Both edges of the band sheet are stapled integratedly with the sheet bundle by a stapler main body also serving as a stapling of the sheet bundle. If the band sheet is not torn at the perforation, its contents cannot be browsed. Therefore, security holding performance of the sheet bundle is raised.
摘要:
A current invention provides a sheet processing apparatus and an image forming apparatus capable of obtaining a sheet bundle which can be double-leaved and released without use of any binding device. A slit S to which a projection Pa provided at an end portion opposite to a side to be bound by a binding portion of a front cover P1 is formed in a back cover P3 of a sheet bundle PA by an insertion portion forming portion. Further, creases L1, L2 for inserting the projection Pa into the slit S while surrounding sheets P2 existing between the front cover P1 and the back cover P2 are formed in the back cover P3 of the sheet bundle PA by a crease forming portion.
摘要:
The present invention provides a sheet processing apparatus and an image forming apparatus which can achieve reduction of running cost. A notch part forming portion 400A including a punch 403 and a die 404 forms plural notch parts in an end part of a sheet bundle folded by a sheet folding portion. A discharge roller pair 402a and 402b turns back the notch parts to bind the sheet bundle. As a result, the sheet bundle can easily be opened and the reduction of the running cost can be achieved because stapling is not performed.
摘要:
The present invention provides a sheet processing apparatus and an image forming apparatus which can achieve reduction of running cost. A notch part forming portion 400A including a punch 403 and a die 404 forms plural notch parts in an end part of a sheet bundle folded by a sheet folding portion. A discharge roller pair 402a and 402b turns back the notch parts to bind the sheet bundle. As a result, the sheet bundle can easily be opened and the reduction of the running cost can be achieved because stapling is not performed.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.