US Patent Application 18347847. CARTRIDGE AND IMAGE FORMING APPARATUS simplified abstract

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CARTRIDGE AND IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA


Inventor(s)

Noriyuki Komatsu of Numazu-shi (JP)

Masaki Ojima of Mishima-shi (JP)

Daisuke Abe of Suntou-gun (JP)

Tomonori Mori of Numazu-shi (JP)

Tadayuki Tsuda of Susono-shi (JP)

Tetsuya Numata of Suntou-gun (JP)

Naoya Asanuma of Susono-shi (JP)

CARTRIDGE AND IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18347847 titled 'CARTRIDGE AND IMAGE FORMING APPARATUS

Simplified Explanation

The patent application describes a cartridge that consists of 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 designed to make contact with the photosensitive drum at a specific region between a development nip portion and a transfer nip portion, as well as at the end portion of the drum in the direction of its rotational axis.
  • The frame of the cartridge has an exposing hole that allows the memory to be exposed from the frame.
  • The frame also has a recessed portion adjacent to the exposing hole in the direction of the rotational axis.
  • The recessed portion serves as a storage area for foreign matters that are removed from the photosensitive drum by the cleaning member.


Original Abstract Submitted

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 adj acent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member.

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