Canon Kabushiki Kaisha

Tetsuya Numata

Naoya Asanuma

Noriyuki Komatsu

Takuya Kawakami

Toru Oguma

Daisuke Hiramatsu

Hiroaki Nosho

Takatoshi Hamada

Takayuki Yada

Yohei Kusano

Osamu Anan

Daisuke Makiguchi

Go Torii

Ryuta Murakami

Shigeo Miyabe

Tadashi Horikawa

Naoki Matsumaru

Naoki Maeda

Takahito Ueno

Hiroyuki Munetsugu

Tomonori Mori

Tadayuki Tsuda

Daisuke Abe

Makoto Hayashida

Masaki Ojima

Yuichi Fukui

Yuuki Nakamura

Tetsushi Uneme

Fumito Nonaka

Noritomo Yamaguchi

Toshiki Fujino

Masanari Morioka

Naoki Hayashi

Ken Kikuchi

Shinjiro Toba

Kazuo Chadani

Akira Yoshimura

Isao Koishi

Hiroharu Tsuji

Takashi Akutsu

Masatoshi Yamashita

Yoshifumi Takeyama

Hiromi Sakurai

Atsushi Takasaka

Yuichi Sakakibara

Kayo Mitsugi

A cartridge is mountable in and dismountable from a main assembly of an image forming apparatus, in which the main assembly includes an opening and an openable member including a discriminating portion. The cartridge includes a process unit including a rotatable photosensitive member and a developing roller configured to supply toner to the photosensitive member, and a developer storage unit configured to store a developer. The developer storage unit is provided with a discharge opening for permitting discharge of the stored developer to the process unit and is mountable to and dismountable from the process unit. The developer storage unit is provided with a portion-to-be-discriminated provided so as to be engaged with the discriminating portion of the openable member when the cartridge is mounted in the main assembly and the openable member is in a closed position.

Cartridge including a developer storage unit for storing developer

A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a development roller, and a memory. The cleaning member is configured to come into contact with the photosensitive drum at a region between a development nip portion and a transfer nip portion in a circumferential direction of the photosensitive drum and at an end portion of the photosensitive drum in a direction of the rotational axis. The frame has an exposing hole through which the memory is exposed from the frame, and a recessed portion that is adjacent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member.

Cartridge and image forming apparatus

A cartridge configured to be attachable to an apparatus main body of an image forming apparatus includes a first unit including a photosensitive drum, a second unit attached to the first unit and including a developing roller, and a second frame member including a toner storage portion and including a toner reception port, the toner storage portion including a first end portion and a second end portion in a rotational axis direction of the photosensitive drum, the toner reception port provided in the first end portion, a toner container configured to be attachable to the second unit, the toner container including a toner discharge port configured to discharge the toner to the toner storage portion through the toner reception port, and a memory, the memory provided in an end portion of the cartridge on the same side as the second end portion of the toner storage portion.

Cartridge used in image forming apparatus

There are demands for stable connections of contact points between a process cartridge, including a development device, and an image forming device. A development contact point, a first contact point, and a second contact point are disposed in this order on the inside in a perpendicular direction with respect to an insertion direction in which a development device is inserted into an image forming apparatus.

Development device, process cartridge, and image forming apparatus

A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive member unit including a photosensitive drum; a sheet configured to remove a deposited matter from a surface of the drum, the sheet being in contact with the surface of the drum at an end portion of the drum with respect to a rotational axis direction of the member; and a developing unit detachably mounted to the member unit, the developing unit including a developing roller configured to supply toner to the drum, and a storage portion configured to store the deposited matter removed from the surface of the drum by the sheet.

Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame

Cartridge

Process cartridge for image forming apparatus

Cartridge having toner removing sheet in contact with photosensitive drum

Growing community of inventors

Suntou-gun, Japan

Tetsuya Numata