Photocopying – Contact printing – Light boxes
Patent
1992-03-19
1993-04-27
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
355308, G03G 1500
Patent
active
052066851
ABSTRACT:
An apparatus for maintaining an electrophotographic apparatus with at least a photosensitive member comprises a first memory for storing a count value for the number of prints, and a second memory for storing the number of replacements of the first memory when the count value for the number of prints has reached a value based on which a decision is made whether the service life of the photosensitive member is expired. When it is determined that the value stored in the second memory has reached a predetermined value, a user is informed of the maintenance period of other maintenance-requiring components than the photosensitive member.
REFERENCES:
patent: 4551000 (1985-11-01), Kanemitsu et al.
patent: 4851875 (1989-07-01), Tanimoto
Hara Kei
Tanaka Koki
Pendegrass Joan H.
Tokyo Electric Co. Ltd.
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