Canon Kabushiki Kaisha

Yukio Kubo

Masaaki Sato

Hiroyuki Munetsugu

Koji Wada

Hideki Nagae

Yosuke Kashiide

Yu Fukasawa

Goshi Ozaki

Kensuke Sato

Masanori Kudo

A cartridge includes a developing roller and a frame configured to support the developing roller. A lever is connected to the frame, with the lever being movable relative to the frame, and with a part of the lever protruding beyond the frame. The cartridge also includes a memory board. and an electrode portion connected to the memory board. When the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward from the frame and at least a part of an exposed part of the developing roller is positioned above the rotational axis.

Cartridge, member constituting cartridge, and image forming apparatus

A cartridge includes a developing roller and a frame configured to support the developing roller. A lever is connected to the frame, with the lever being movable relative to the frame, and with a part of the lever protruding beyond the frame. The cartridge also includes a spring deformable in response to a movement of the lever relative to the frame, with the spring being positioned such that it is capable of exerting a first force on the lever and a second force on the frame. A memory board is provided and an electrode portion is connected to the memory board. A part of the electrode portion and a part of the spring are positioned in a plane that is perpendicular to a rotational axis of the developing roller.

A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.

A cartridge includes a developing roller rotatable about a rotational axis thereof, and a frame configured to support the developing roller. A lever is connected to the frame, with the lever being elastically deformable such that a first part of the lever is movable relative to a second part of the lever and relative to the frame, and the lever protruding from the frame. A coupling member is configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis. When the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the lever protrudes downward from the frame.

Growing community of inventors

Boise, ID, United States of America

Yukio Kubo