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Process kit and an image forming apparatus using the same

  • US 4,551,000 A
  • Filed: 03/22/1982
  • Issued: 11/05/1985
  • Est. Priority Date: 04/01/1981
  • Status: Expired due to Term
First Claim
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1. A process kit receivable into an image forming apparatus, comprising:

  • process means provided in said process kit, said process means comprising an image bearing member and means actable thereon for repetitive image formation,supporting means for supporting said process means as a unit,counting means for detecting and counting the number of operations of the process kit and memorizing information relating to the amount of use;

    a battery having a property of attenuating with time, and the attenuation being used for providing information as to the end of the service life of the process kit that is caused by the deterioration of the process kit over a period of time.

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