Canon Kabushiki Kaisha

Masao Uyama

Ken Kikuchi

Kenji Matsuda

Masahide Kinoshita

Jun Miyamoto

Motoki Adachi

Masaki Ojima

Seiji Yamaguchi

Kazuhiro Okubo

Takahito Ueno

Atsushi Numagami

Kazunari Murayama

Kenichi Iida

Jun Miyazaki

Norihito Naito

Yuichiro Hirata

Kodai Hayashi

Daisuke Baba

Makoto Tokudome

Keisuke Mochizuki

Ryosuke Kanai

Kenji Shindo

Yasunari Watanabe

Kohei Matsuda

Satoru Inami

Hiroaki Ogata

Nobuyoshi Yoshida

Koichiro Takashima

Hideto Oka

Yousuke Watanabe

A cartridge includes a drum unit and a developing unit. The developing unit is mountable in a space between first and second walls of the drum unit. While the developing unit is being mounted to the drum unit, in a posture in which the drum unit is mounted in the main assembly, the handle portion is moved downward in a direction of gravity and the developing unit is rotated so that the developing roller is moved closer to the photosensitive drum. In a state in which the developing unit is mounted to the drum unit, an urged portion of the developing unit is urged by an urging portion of the drum unit so that the developing roller and the photosensitive drum are in contact with each other.

Photosensitive member cartridge and process cartridge

A photosensitive member unit includes a photosensitive member, a transfer roller, a mounting portion capable of mounting a development unit including a development roller, a first gear and a second gear each provided at one end of the photosensitive member in an axial direction of the photosensitive member, and a third gear provided at one end of the transfer roller in an axial direction of the photosensitive member and configured to engage with the second gear. The first gear, the second gear, and the third gear are helical gears. A direction in which helical teeth of the first gear are inclined is opposite to a direction in which helical teeth of the second gear are inclined, and the direction in which the helical teeth of the first gear are inclined matches a direction in which helical teeth of the third gear are inclined.

Photosensitive member unit and development unit

A photosensitive member cartridge detachably mountable to a main assembly of an image forming apparatus for forming an image, includes a frame; a photosensitive drum on which and which is provided in the frame; a transfer member for transferring an image formed on the drum onto the sheet; a mounting portion for detachably mounting a developing cartridge including a developer carrying member onto the drum and a memory for storing information; a first electrical contact provided on the frame and electrically connectable with a main assembly electrical contact provided in the main assembly when the cartridge is mounted to the main assembly; and a second electrical contact provided on the frame for electrically connecting the memory and the first electrical contact portion with each other when the developing cartridge is mounted to the mounting portion.

Growing community of inventors

Mishima, Japan

Masao Uyama