Image forming apparatus

Details Image forming apparatus Image forming apparatus

1997-02-27

1999-05-25

Smith, Matthew S.

Electrophotography

Diagnostics

Consumable

399 24, G03G 1500

Patent

active

059077395

ABSTRACT:
An image forming apparatus has an image bearing member, a charging member which contacts with the image bearing member to charge it, detecting device for detecting an electric current flowing through the charging member when a predetermined voltage is applied thereto, and a display device for displaying an information about a life of the image bearing member in conformity with the result of detection by the detecting device. The display device can display at least two different kinds of information corresponding to at least two different electric currents detected by the detecting device.

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patent: 5572292 (1996-11-01), Chatani et al.
patent: 5726759 (1998-03-01), Watanabe et al.

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