Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Tsutomu Anezaki

Satoru Shimizu

Masaaki Uchiyama

Hiroyuki Wakabayashi

Tsuyoshi Mizubata

Mikihiro Yamakawa

Riichi Hama

Tomohiko Kiryu

Masato Niizuma

Ryohei Sunayama

A sheet stacking apparatus includes: a sheet stacking part on which a sheet is stacked; a tilt detection sensor arranged on an upstream side in a conveying direction of the sheet of the sheet stacking part, and which detects a tail end in the conveying direction in the conveyed sheet; a pair of correction rollers arranged on a downstream side in the conveying direction of the tilt detection sensor and arranged immediately before an upstream side in the conveying direction of the sheet stacking part, and which corrects a tilt of the sheet; and a sheet holder that holds the sheet with the tilt corrected by the pair of correction rollers, and conveys and stacks the sheet on the sheet stacking part.

Sheet stacking apparatus and image forming system

An image reading apparatus includes: a reader; a first conveyance roller pair; a second conveyance roller pair; and a hardware processor that lowers a conveying force exerted from the second conveyance roller pair on a sheet when acceleration control for accelerating a conveying speed of the sheet whose image has been read by the reader is performed, compared with a case in which the acceleration control is not performed.

Image reading apparatus and image forming system

A post processing apparatus includes: a reader that reads paper on which an image is formed by an image forming apparatus to acquire a read image; a post processor that performs post processing on the paper; and a hardware processor that detects a position of an edge of the paper and a position of the image from the read image acquired by the reader, and controls a post processing position in the post processor on the basis of the position of the edge of the paper and the position of the image detected.

Post processing apparatus

A sheet processing apparatus, including: a stacking section; a first alignment section which aligns both end portions in a sheet conveyance direction of the sheet stacked in the stacking section; a second alignment section which aligns both end portions in a width direction, that is orthogonal to the sheet conveyance direction, of the sheet aligned by the first alignment section; a sheet ejection section which ejects the sheet stacked in the stacking section outside the stacking section; and a control section which moves a pair of horizontal alignment plates away from the both end portions in the width direction of the sheet after operating a gripping section so as to grip the sheet in a state where the pair of horizontal alignment plates contacts the both end portions in the width direction of the sheet supported by a supporting section.

Sheet processing apparatus and image forming system

A paper discharge apparatus including, a paper loading portion for loading a paper which is discharged; a paper rear-end abutting portion which a rear end of paper in a paper conveying direction abuts; a pair of paper holding members for holding the paper at the paper holding position when the paper is discharged; a paper holding member moving device which is connected to at least one of the pair of the paper holding members and moves the pair of the paper holding members from a paper holding position to a paper loading position; when the pair of the paper holding members reach the paper loading position, the paper holding member moving device moves at least one of the pair of the paper holding members in the opposite direction of the paper conveying direction and makes the rear end of the holding paper abut the paper rear-end abutting portion.

Paper discharge apparatus and image forming apparatus equipped with paper discharge apparatus

A sheet folding apparatus including: a conveyance device having a first pair of rollers for nipping and conveying a paper sheet; a folding device disposed downstream of the conveyance device in a paper sheet conveyance direction, the folding device having a second pair of rollers for nipping and conveying the paper sheet, wherein the conveyance device conveys the paper sheet to the folding device by making the paper sheet bent toward the folding device, and the folding device conveys the bent paper sheet to fold the paper sheet; and a folding assist member for pushing the paper sheet so that the paper sheet moves toward the folding device, the folding assist member being pivotally arranged to be capable of rotating downstream of the conveyance device in the conveyance direction.

Sheet folding apparatus, sheet post-processing apparatus and image forming apparatus

It is intended to provide a sheet stack ejecting apparatus, an image forming apparatus and a sheet stack processing apparatus applicable to ejection of a sheet stack while ejection errors are prevented by reducing disorderliness of ejected sheets of paper. A sheet ejecting apparatuscarries and ejects a sheet stack by holding the sheet stack with an ejecting roller pairthat consists of a top rollerand a bottom roller. The sheet ejecting apparatus 10 further includes a motorfor shifting the top rollerto switch between pressing state and separated state with respect to the ejecting roller pairand a controllerfor controlling the motor. The controllerworks as ejection means that makes the ejecting roller pairpressing state so as to eject a sheet stack and as separation means that makes the ejecting roller pairseparated state before a back end of a sheet stack escapes from nips of the ejecting roller pairby using the motor

Growing community of inventors

Hachioji, Japan

Tsutomu Anezaki