Consumable unit and image forming apparatus including memory...

Details Consumable unit and image forming apparatus including memory... Consumable unit and image forming apparatus including memory...

2011-06-28

2011-06-28

Royer, William J (Department: 2852)

Electrophotography

Diagnostics

Unit or part identification

C399S024000, C399S026000, C399S027000, C399S109000

Reexamination Certificate

active

07970292

ABSTRACT:
A consumable unit and an image forming apparatus for controlling a consumable includes a first memory that stores consumable item information regarding the consumable and provides the consumable item information through password authentication, and a second memory that rewrites recycling prevention information, which indicates that recycling is impossible, a limited number of times. Therefore, if the consumable is replaced, it is possible to prevent the first memory and second memory from being recycled.

REFERENCES:
patent: 6738903 (2004-05-01), Haines
patent: 7295787 (2007-11-01), Kikuchi
patent: 7333738 (2008-02-01), Nasu

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