Device unit, an image forming apparatus, a management...

Details Device unit, an image forming apparatus, a management... Device unit, an image forming apparatus, a management...

2007-11-13

2007-11-13

Gray, David M. (Department: 2852)

Electrophotography

Diagnostics

Unit or part identification

Reexamination Certificate

active

10922973

ABSTRACT:
A novel device unit is detachably provided to an image forming apparatus having a control unit configured to control the image forming apparatus. The device unit includes a CPU configured to communicate with the control unit; and a memory configured to store property information including information provided through a communication between the CPU and the control unit. The memory includes a write-prohibited area configured to prohibit an information overwriting; a first writable area configured to allow an information writing; and a second writable area configured to controllably allow a one time information overwriting. A recycling system includes a reader/writer configured to communicate with an IC tag provided to the device unit, and a personal computer configured to communicate with the IC tag via the reader/writer and to perform a recycle processing of the device unit.

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