System, apparatus, and method for preventing access to...

Details System, apparatus, and method for preventing access to... System, apparatus, and method for preventing access to...

2007-11-06

2007-11-06

Tran, Hoan (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S025000, C399S026000, C399S027000

Reexamination Certificate

active

11083036

ABSTRACT:
An image forming apparatus having a recognizing member configured to read a property stored in a memory member of a consumable item via a communication member, and to recognize if the consumable item can be used. The image forming apparatus also includes a property changing member configured to communicate to the memory member and to change a parameter so that information stored in the memory member cannot be accessed when the recognizing member recognizes the consumable item can be no longer used.

REFERENCES:
patent: 6768877 (2004-07-01), Alegria et al.
patent: 6865349 (2005-03-01), Silence et al.
patent: 7139493 (2006-11-01), Ito et al.
patent: 2006/0062583 (2006-03-01), Kikuchi
patent: 2007/0047974 (2007-03-01), Tanaka
patent: 2001-272890 (2001-10-01), None
patent: 2003-076230 (2003-03-01), None
patent: 2003-131544 (2003-05-01), None
patent: 2003-140456 (2003-05-01), None
U.S. Appl. No. 10/926,224, filed Aug. 26, 2004, Kikuchi.
U.S. Appl. No. 10/975,621, filed Oct. 29, 2004, Kikuchi.

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