Dismounting and mounting methods for coupling and electrophotographic photosensitive drum unit

  • US 8,565,640 B2
  • Filed: 02/22/2013
  • Issued: 10/22/2013
  • Est. Priority Date: 06/20/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. An electrophotographic photosensitive drum unit comprising:

  • (a) a cylinder having a photosensitive layer at an outer periphery thereof;

    (b) a drum flange provided at one end of said cylinder;

    (c) a coupling member engaged with said drum flange so that an axis of said coupling member is inclinable with respect to an axis of said drum flange; and

    (d) a regulating portion provided in said drum flange so as to prevent said coupling member from disengaging from said drum flange,wherein at least one of said coupling member and said regulating portion is configured to be deformed to permit said coupling member to disengage from said drum flange or to engage with said drum flange.

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