Electro-photographic light-sensitive drum, processing box and electro-photographic imaging apparatus

Electro-photographic light-sensitive drum, processing box and electro-photographic imaging apparatus

  • CN 1,677,261 B
  • Filed: 11/12/2004
  • Issued: 03/28/2012
  • Est. Priority Date: 03/30/2004
  • Status: Active Grant
First Claim
Patent Images

1. electro-photographic light-sensitive drum that can use with electrophotographic image forming apparatus comprises:

  • Has non-circular helix projection with the xsect of a plurality of corner parts;

    Said non-circular helix projection is set at a longitudinal end place of said electro-photographic light-sensitive drum;

    And can engage with the non-circular helix hole that has with the cross section of a plurality of corner parts, but said non-circular helix hole is arranged on the central part office of the driven in rotation member of said imaging device master component;

    AndSecond conductive member that is arranged on the said projection and can electrically contacts with said electro-photographic light-sensitive drum;

    Said second conductive member can contact with first conductive member of the master component that is electrically connected on said imaging device;

    This first conductive member is arranged in the said hole so that the ground connection of said electro-photographic light-sensitive drum to be provided;

    Said second conductive member has smooth contact portion and arm shape contact portionWherein, Between said projection and said hole joint aging time;

    The end of said arm shape contact portion contacts at the first make contact place with the end of said first conductive member when the input rotary driving force;

    The end of said arm shape contact portion begins to slide from said first make contact on the surface of the end of said first conductive member when continuing the input rotary driving force;

    Finally, the end of said arm shape contact portion stops to slide at the second contact point place on the surface of the end of said first conductive member, and said smooth contact portion contacts with the end of said first conductive member.

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