18098766. CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Shigemi Kamoshida of Tokyo (JP)

Takeshi Arimitsu of Odawara-shi (JP)

Isao Koishi of Yokohama-shi (JP)

Yusuke Niikawa of Kawasaki-shi (JP)

CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18098766 titled 'CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

Simplified Explanation

The patent application describes a cartridge for a printer or copier that includes a photosensitive drum and a developing roller, both of which are rotatable. The cartridge also has a casing that supports these components.

  • The cartridge includes a coupling member that is connected to the photosensitive drum and has a projection capable of receiving a rotational force to rotate the drum.
  • A spring is provided in the cartridge, with a movable part that can move away from the rotational axis of the developing roller.
  • The movable part of the spring urges the coupling member so that the projection moves away from the rotational axis of the developing roller.

Potential applications of this technology:

  • This cartridge design can be used in printers and copiers to improve the efficiency and reliability of the printing process.
  • It can be applied in various types of printing devices, including laser printers and photocopiers.

Problems solved by this technology:

  • The cartridge design ensures proper rotation of the photosensitive drum, which is crucial for producing high-quality prints.
  • The movable part of the spring helps maintain the correct positioning of the coupling member, preventing any misalignment or damage to the drum.

Benefits of this technology:

  • The improved rotation mechanism enhances the overall performance and longevity of the cartridge.
  • The design allows for easy installation and replacement of the cartridge in printing devices.
  • The reliable rotation of the photosensitive drum results in consistent and accurate printing output.


Original Abstract Submitted

A cartridge includes a photosensitive drum having a rotational axis about which the photosensitive drum is rotatable, a developing roller having a rotational axis about which the developing roller is rotatable, and a casing rotatably supporting the photosensitive drum and the developing roller. The coupling member is operatively connected to the photosensitive drum, with the coupling member including at least one projection capable of receiving a rotational force to rotate the photosensitive drum. A spring is provided with a movable part that is movable relative to the casing in a direction away from the rotational axis of the developing roller to urge the coupling member so that at least the projection of the coupling member moves away from the rotational axis of the developing roller.

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