Ricoh Company, Ltd.

Akihito Andoh

Masahiro Tamura

Shuuya Nagasako

Kenji Yamada

Nobuyoshi Suzuki

Junichi Iida

Hiroki Okada

Hiromoto Saitoh

Kazuya Tsutsui

Naohiro Kikkawa

Junichi Tokita

Yukitaka Nakazato

Yoshihiko Nakayama

Jun-ichi Iida

Shinji Asami

Masahiro Minato

Uotani Kunihiro

A sheet finisher for performing preselected processing with a sheet or a sheet stack conveyed thereto of the present invention includes a cutter unit configured to cut the sheet or the sheet stack in a direction perpendicular to a direction of sheet conveyance. A guide member is positioned upstream of the cutter unit in the direction of sheet conveyance for guiding the sheet or the sheet stack being conveyed. A moving device moves the guide member in a direction parallel to the direction of sheet conveyance.

Sheet finisher and image forming system using the same

A sheet finisher of the present invention includes a punching unit configured to punch a sheet handed over from an image forming apparatus to the sheet finisher. A scrap conveying unit conveys scraps produced from the sheet punched by the punching unit. A hopper stores scraps conveyed thereto by there scrap conveying unit. The hopper is mounted on the front side of the sheet finisher.

Sheet finisher with a punching unit

To ensure that the leading edge of the sheet ejected onto a traydoes not push and move loaded sheets in advance, loaded sheets are retained at position (II) by a retaining roller. A roller (returning roller in this case)for applying external force to a sheet S ejected onto the trayand moving the sheet toward a end facefor alignment is displaced to a different position in the direction of ejection 'a', thereby firmly gripping the trailing edge of the sheet S ejected on the tray

Sheet-like medium alignment apparatus

A sheet finisher for executing preselected processing with a sheet conveyed thereto of the present invention includes a first processing tray configured to temporarily store the sheet and deliver it. A first and a second path are positioned downstream of the first processing tray in a direction of sheet conveyance and configured to convey a first and a second sheet stack, respectively. The first path conveys the first sheet stack upward over the downstream portion of the first processing tray while the second path conveys it downward over the same. A switching device selects either one of the first and second paths. The sheet finisher of the present invention is low cost and highly productive and space saving.

A sheet-shaped medium processing apparatus of the present invention is provided with a pair of arranging members, and these arranging membershave both arranging function for arranging paper S piled on a trayafter being discharged in a discharge direction 'a' from a paper discharge rollerat only fixed position, and sorting/arranging function for arranging the papers S grouped together at different position in direction (direction perpendicular to paper face) perpendicular to the discharge direction 'a' in every copy of grouping together predetermined number of the paper S. For that reason, it is possible to conduct sorting/arranging action by using small drive power and to arrange the paper S in high precision regardless of largeness of piled amount of the paper S on the tray

Sheet-shaped medium processing apparatus

A sheet finisher for executing preselected processing with a sheet introduced thereinto from an image forming apparatus and then discharging the sheet is disclosed. The sheet finisher includes a stacking device configured to temporarily stack sheets sequentially delivered thereto. Jogger fences jog each sheet within the stacking device. A stapler staples the sheet stack jogged in the stacking device. The stapler is supported by a guide shaft such it is movable along the guide shaft in a direction perpendicular to the direction of sheet conveyance and angularly movable in a direction perpendicular to the direction of guide.

Sheet finisher having an angularly movable stapler and image forming system including the same

A sheet finisher includes means for cutting a non-folded edge of at least one folded sheet. Means are used for setting a cutting position in accordance with a preselected length of the at least one folded sheet in a direction of sheet conveyance and a sensed length of the at least one folded sheet in the direction of sheet conveyance. An image forming system includes an image forming apparatus having means for forming a toner image on a sheet in accordance with image data, and the sheet finisher.

Sheet finisher including means for setting cutting position image forming system including the sheet finisher

A sheet-shaped medium treatment apparatus is disclosed. The sheet-shaped medium treatment apparatus has returning means. The sheet-shaped medium treatment apparatus is movable between a home position (I) and a press/return position (II). In addition, before leading end of discharged sheet-shaped medium Sgets contact with top surface of sheet-shaped medium Salready piled on said piling means, the returning meansis situated at said press/return position (II) and acts upon said already piled sheet-shaped medium Sto retain it in proper position, and after said discharged sheet-shaped medium Sfalls on said piling meanssaid fallen sheet-shaped medium is aligned by being collided against said vertical wallby said returning action of said returning meansthereafter, sheet-shaped medium is arranged by said arranging action of said arranging means in the direction of piercing the paper plane. Also, sheet-shaped medium treatment apparatus includes after-treatment apparatus, and the after-treatment apparatus has stapling means for aligning and stapling a plurality of sheet-shaped media, if sheet-shaped medium is sheet-shaped medium bundle stapled by the stapling means, returning means is controlled so that it is remote from top of the sheet-shaped medium bundle.

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Kanagawa, Japan

Akihito Andoh