Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Masayuki Miyazaki

Yoshikazu Maekawa

Tsugio Hirabayashi

Takashi Murahashi

Chiharu Kobayashi

Koji Yukawa

Masaru Ushio

Kohji Yoshie

Yoshihiko Kudo

Akira Sawaki

Seiji Takahashi

Hiroyuki Ari

Seizi Takahashi

Masahito Kuratsune

An electrophotographic copying apparatus has increased speed in recording sheet conveyance where the conveying path from the sheet feed cassette to the photosensitive member is relatively long. The sheet conveyance apparatus is constructed to equalize the line speed of the photosensitive member, the feed speed of the recording sheet and the conveying speed of the recording sheet. A plurality of sheets serially fed out from a sheet tray are concurrently transported along the sheet path. A sheet is fed out from the sheet tray in response to a timing reference signal generated in response to the scanning operation for a previously fed out sheet.

Sheet conveyance apparatus

A copying apparatus which performs either of two scanning functions depending on the size of original documents. In case of a large-size document, a scanning operation therefor is carried out by moving the document relative to the stationary fixed optical system responsive to selection of such scanning operation. The selection is effective only when the large-size document is detected.

Method and mechanism for preventing misoperation of dual mode copying

In a sorting machine designed for use with a copying machine capable of handling paper of various sizes, a vertical array of sorting bins includes an uppermost sorting bin with an expandable surface area. This allows the sorting machine to handle extraordinarily large paper without increasing the footprint of the sorting machine. The uppermost position ensures that when expanded, the expandable sorting bin will stand over the copying machine, which does not normally need great overhead clearance. The expandable sorting bin may be expandable by virtue of a hinged, sliding or detachable extension plate, and may be expanded automatically when the copying machine detects and signals the use of larger paper. Multiple expandable sorting bins may be used for sorting the extra-large paper. In addition, the sorting machine may have one normal-sized sorting bin in alignment with a main receiving tray of the copying machine so as to allow the main tray to accommodate extra-large paper.

Sorting machine and image reproducing apparatus

An apparatus for facilitating creation of an improved quality reproduction of an original to be copied includes a first sensor for producing a signal in accordance with the density of the background or nonimage are of the original, a second sensor for producing a signal in accordance with the color of its background, and electronic circuit means for generating a bias voltage based on the sensed density and color of the background of the original for application to a developing apparatus.

Copying machine having detectors for the background color and density of

A device for determining the size of an original or material to be copied in the copying machine wherein a color sensor is used as means for detecting the size of the original. The device comprising a colored member having a certain color, a light emitting member for throwing light upon the colored member, and a light receiving member for receiving light reflected by or transmitted through the colored member.

Device for detecting the size of the material to be copied in copying

Growing community of inventors

Hachioji, Japan

Masayuki Miyazaki