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Method of detecting life of image bearing member, image forming apparatus and cartridge

  • US 20030026621A1
  • Filed: 06/25/2002
  • Published: 02/06/2003
  • Est. Priority Date: 06/15/2000
  • Status: Active Grant
First Claim
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1. A method of detecting life of an image bearing member comprising:

  • a contact time detecting step of detecting contact time when a developer carrying member that can have a contact or a clearance with an image bearing member contacts said image bearing member, said developer carrying member developing an electrostatic image formed in said image bearing member by a developer; and

    a determining step of determining life of said image bearing member in accordance with a parameter calculated by using the contact time detected in said contact time detecting step.

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