IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To provide an electrophotographic image forming apparatus which can properly predict the life of a photosensitive drum. SOLUTION: This apparatus is equipped with a rotation time counter TC which measures the rotation time of the photosensitive drum 91 and a means which counts s...

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Bibliographic Details
Main Authors TACHIBANA MASAKI, INOUE KAZUE
Format Patent
LanguageEnglish
Published 12.03.2002
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an electrophotographic image forming apparatus which can properly predict the life of a photosensitive drum. SOLUTION: This apparatus is equipped with a rotation time counter TC which measures the rotation time of the photosensitive drum 91 and a means which counts sheets of recording paper used for image formation. When the rotation time of the photosensitive drum 91 exceeds a specific time or when the number of sheets of recording paper used for the image formation exceeds a specific number, the life of the photosensitive drum 91 is predicted according to the rotation time or the number of sheets of recording paper respectively and a user is notified of the replacement period of the photosensitive drum 91.
Bibliography:Application Number: JP20000264134