Image forming apparatus

Details Image forming apparatus Image forming apparatus

2005-07-05

2005-07-05

Coles, Edward (Department: 2622)

Facsimile and static presentation processing

Static presentation processing

Memory

C358S001140, C399S024000, C399S025000, C399S027000

Reexamination Certificate

active

06914696

ABSTRACT:
In a image forming apparatus, a lifespan copy number (lifespan time period) previously determined for each component is added to the replacement schedule copy number (replacement schedule time) of respective components contained in the apparatus, in other words the total print number (total print time) at the time of replacement of a component, and the resulting value is recorded in a non-volatile memory. Therefore, it is judged that a component lifespan has expired, each time that the total print number (total print time) exceeds the replacement schedule copy number (replacement schedule time period). Thereby, since the amount of information required for component lifespan management is small, the capacity of the non-volatile memory can be reduced, and hence cost reductions in the image forming apparatus can be achieved.

REFERENCES:
patent: 5101233 (1992-03-01), Ito et al.
patent: 5636032 (1997-06-01), Springett
patent: 5802420 (1998-09-01), Garr et al.
patent: 6173129 (2001-01-01), Kimizuka
patent: 6430711 (2002-08-01), Sekizawa
patent: 919392 (1999-06-01), None

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