Ricoh Company, Ltd.

Takeshi Hirabayashi

Hiroki Yoshida

Terumitsu Azuma

Shigefumi Soga

Kentaro Fukami

Shinji Tanoue

Daishi Watanabe

Kazumasa Takeuchi

Yusuke Tanaka

Atsushi Kuriyama

Yuuki Nakagawa

Takuya Fukuhara

Kentaroh Fukami

Ryoh Suzuki

Takato Mochizuki

Toshikazu Satoh

A post-processing device () includes a circulation conveyance path, a zeroth conveyer (R), and a controller (). The circulation conveyance path includes a first conveyance path (W), a second conveyance path (W), a third conveyance path (W), a first conveyer (R), a second conveyer (R), and a third conveyer (R). The first and second conveyers convey a preceding sheet (P) along the first and second conveyance paths. The third conveyer conveys it from the third conveyance path to the first conveyance path. The zeroth conveyer conveys a following sheet (P) toward the first conveyer. The controller controls the third conveyer to stop the preceding sheet, subsequently controls the zeroth conveyer and the third conveyer to overlay the preceding sheet with the following sheet to form a sheet bundle (Q) having a shift amount (G) between a leading edges of the preceding sheet and the following sheet and strike the leading edges of the preceding sheet and the following sheet against the first conveyer.

Post-processing device, image forming apparatus, and image forming system

A sheet processing apparatus includes a fixed tray and a movable tray. The fixed tray is fixed at its downstream portion in a sheet transport direction and includes a sheet loading surface. A downstream portion of the sheet loading surface of the fixed tray is positioned at a higher level than an upstream portion thereof. The movable tray is pivotally supported, at its upstream portion, by a pivot support provided on the fixed tray. An angle between a sheet loading surface of the movable tray and a horizontal direction is more gentle than an angle between the sheet loading surface of the fixed tray and the horizontal direction.

Sheet stacker and image forming apparatus

A paper processing apparatus includes: a discharging unit that discharges the paper onto a staple tray; a paper returning unit that reverses the paper discharged by the discharging unit and performs alignment in a conveying direction by abutting the paper against a rear end reference fence; a supporting unit that supports the discharging unit in a state capable of coming in contact with or separating from the paper; a contact and separation unit by which the discharging unit comes in contact with or separates from the paper; and a pressurizing unit that is moved by the contact and separation unit, does not load the discharging unit in a standby state where the discharging unit is held apart from the paper, and applies contact pressure in a state where the discharging unit is in contact with the paper.

Paper processing apparatus and image forming apparatus

A sheet processing apparatus includes: a staple tray on which sheets are stacked temporarily and stapled after being aligned together and from which the stapled sheets are discharged to a discharge tray; a discharger to discharge the sheets to the staple tray; a rear end reference against which rear ends of the sheets are abutted to be aligned together; a returner to return the sheets discharged by the discharger and to align the sheets together in a conveying direction based on the rear end reference fence; a lifter to lift and lower the returner with respect to a sheet; and a guide configured to guide the sheets toward the rear end reference fence when the sheets are returned and to be lifted and lowered in synchronization with the lifting and lowering by the lifter.

Sheet returning unit for post processing apparatus

The apparatus for inputting coordinates has a support plate including a coordinate input plane for inputting a coordinate position, an optical unit is formed by integrating a light source and a light receiver. The light source emits light which is substantially parallel to the coordinate input plane. A reflecting section reflects the light emitted from the light source. The optical unit is embedded in the coordinate input plate by the use of a frame, an optical unit retaining plate and a screw.

Apparatus for inputting coordinates

Growing community of inventors

Aichi, Japan

Takeshi Hirabayashi