Image forming apparatus attached with replaceable unit

Details Image forming apparatus attached with replaceable unit Image forming apparatus attached with replaceable unit

2007-03-20

2007-03-20

Lee, Susan (Department: 2852)

Electrophotography

Diagnostics

Unit or part identification

C399S027000

Reexamination Certificate

active

11024760

ABSTRACT:
By using information stored in a storage part provided in the image forming apparatus main body or the results of detection of an image density sensor or the like, it is judged whether or not a replaceable unit such as a toner cartridge has been replaced. Furthermore, from information stored in the storage part provided in the image forming apparatus main body, it is detected whether a replaceable unit such as a toner cartridge is genuine or other than genuine units. From these detection results, information on the amount used for developer of the replaced toner cartridge, stored in the storage part, is initialized.

REFERENCES:
patent: 6990297 (2006-01-01), Ito et al.
patent: 02-081056 (1990-03-01), None
patent: A 06-149051 (1994-05-01), None
patent: B2 2602341 (1997-01-01), None
patent: A 10-133528 (1998-05-01), None
patent: A-2000-284581 (2000-10-01), None
patent: 2001-100598 (2001-04-01), None
patent: B2 3476704 (2003-09-01), None
patent: 2001-67327 (2001-07-01), None

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