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Image formation apparatus

  • US 5,950,038 A
  • Filed: 02/26/1998
  • Issued: 09/07/1999
  • Est. Priority Date: 02/27/1997
  • Status: Expired due to Term
First Claim
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1. An image formation apparatus comprising:

  • a main body of said apparatus;

    a photosensitive unit having a photosensitive body and a device for acting on the photosensitive body, said photosensitive unit being disposed detachably in said main body of said apparatus; and

    a main body controller for controlling operation of components for performing image formation operation using the photosensitive body, said main body controller having a main memory for storing predetermined items,wherein a recyclable substance is used for the photosensitive body and said photosensitive unit is provided with an auxiliary memory, anda cumulative number of print sheets of paper the photosensitive body has printed and a total number of print sheets of paper counted over a life of the main body of said apparatus are stored in both the main memory and the auxiliary memory.

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