Canon Kabushiki Kaisha

Tadashi Yagi

Hiroo Kobayashi

Hiroaki Miyake

Tsuyoshi Waragai

Yoshiro Tsuchiya

Toshifumi Moritani

Hiroshi Yukimachi

Yasuyoshi Hayakawa

Takahiro Azeta

Takamasa Sawada

Hitoshi Fujino

Masahito Ohtsuka

Yuji Takahashi

Kaoru Sato

Junichi Kimizuka

Kazuyuki Morinaga

Nobukazu Adachi

Masanobu Kanoto

Yutaka Kikuchi

Jun Saito

Takeshi Setoriyama

Toshihiko Inuyama

Akihisa Kusano

Hisayuki Tomura

Toshio Yoshimoto

Kazuhiko Okazawa

Masaki Nakaoka

Sumitoshi Sootome

Makoto Abe

Toshiyuki Ito

Osamu Ohuchi

Masahito Otsuka

Takahiro Azeda

Takao Yokomizo

The present invention provides a sheet supplying apparatus having a sheet stacking device for stacking and supporting sheets, a sheet supply roller having different radial dimensions along a periphery thereof to feed out the sheets from the sheet stacking device, and a separation unit having a feed rotary member rotated in a sheet feeding direction and a reverse rotary member rotated in a direction opposite to the sheet feeding direction to separate the sheets fed out by the sheet supply roller one by one.

Sheet supplying apparatus

The present invention provides an image forming apparatus with a supply roller for supplying a sheet, a supply path for directing the sheet to an image forming section, a sheet ejecting path for the sheet on which an image is formed at the image forming section toward an ejecting section, a space integrally formed in a lower part of a body of the image forming apparatus, a branch path branched from the sheet ejecting path and adapted to direct the sheet toward the space, an introduction path for directing the sheet from the space to the supply path, and a sheet re-feeing unit removable with respect to the body of the image forming apparatus and including a sheet re-feeding path having an entrance facing the branch path and an exit facing the introduction path.

Image forming apparatus having re-feeding unit

The present invention provides an image forming apparatus having a first image forming unit incorporating an image formation processing device therein, a sheet supply station for feeding a sheet to the first image forming unit, and a sheet ejecting station for ejecting the sheet on which an image is formed by the first image forming unit out of the image forming apparatus. Wherein a second image forming unit having the same function and size as those of the first image forming unit is mounted within the image forming apparatus and a sheet inlet of the second image forming unit is directly connected to the sheet ejecting station.

Image forming apparatus with plural forming units

This invention relates to an image forming apparatus having a convey path comprising lateral movement apparatus for controlling a widthwise position of a sheet member to be conveyed, wherein the lateral movement apparatus is curved in a convey direction.

Image forming apparatus comprising lateral movement means

An image forming apparatus includes a main assembly and a process cartridge. The main assembly contains and retains an electrophotographic photosensitive member, and therefore, the photosensitive member is not contained in the process cartridge. The process cartridge contains an electric charger, a developing device and/or cleaning device. The process cartridge is detachably mountable into the main assembly.

Process cartridge and image forming apparatus using the same

An image forming apparatus provided with a positioning mechanism for positioning a process cartridge in the main assembly. The process cartridge is detachably mountable into the main assembly. The main assembly includes a bottom frame and a top frame which is capable of taking a closing position and an opening position. The process cartridge is loaded into the top frame or bottom frame. Prior to the start of image formation, the process cartridge is correctly positioned with respect to the bottom frame. The bottom frame contains the major part of the optical system, whereby the accurate relative position can be accomplished with an optical system of the cartridge.

Image forming apparatus comprising a main assembly having a top frame

An image forming apparatus includes a corona discharging device having a cleaner for cleaning a corona discharging wire and is removably mountable in an operative position. Further, an image forming apparatus in which a cartridge containing therein at least a corona discharging device functioning as image formation processor is provided with a cleaner for cleaning a corona discharging wire removably mountable therein. When the corona discharging device or the cartridge is to be mounted in the image forming apparatus, and when the cleaner is not positioned at a predetermined position in the corona discharging device or at a predetermined position in the cartridge, a stopper provided on the image forming apparatus side is brought into engagement with the cleaner to thereby relatively move the cleaner to the predetermined position in the corona discharging device or the cartridge.

Image forming apparatus

This invention relates to a sheet loading device for causing sheets put out one after another from a sheet output apparatus such as a laser beam printer or a copying apparatus onto a sheet receiving member to be loaded in orderly, mutually superposed relationship without being deviated from one another. The sheet loading device is provided with a sheet receiving member for supporting thereon discharged sheets in mutually superposed relationship, a sheet loading positioning member, gathering device for frictionally contacting the upper surface of the sheets supported on the sheet receiving member and gathering the sheets in an oblique direction, and a support member free to move and position and supporting the gathering device and the positioning member, and is characterized in that the support member is moved in accordance with the size of the sheets put out onto the sheet receiving member to thereby position the gathering device and the positioning member mounted on the support member at positions corresponding to and matching the size of the sheets. The sheet loading device is also characterized in that during sheet loading operation, the sheet receiving member cannot be placed out of the device and the sheet receiving member cannot be inserted into the device unless it is properly prepared.

Sheet loading device

Growing community of inventors

Machida, Japan

Tadashi Yagi