Photocopying – Contact printing – Light boxes
Patent
1988-10-19
1989-07-25
Prescott, A. C.
Photocopying
Contact printing
Light boxes
355211, 355209, 355308, G03G 1500
Patent
active
048518751
ABSTRACT:
An image forming apparatus including a main body and a processing unit detachably mounted in the main body. The processing unit includes at least one of an image bearing member and developing device. The number of image forming repetitions of the processing unit are counted by a counter in the main body. When the counted number for the processing unit reaches a reference value representing the effective life of the processing unit, an alarm device actuates to notify the user that the effective life of the processing unit has been reached.
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Kabushiki Kaisha Toshiba
Pipala Ed
Prescott A. C.
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