Nonvolatile memory life prolonging circuit and image forming...

Facsimile and static presentation processing – Static presentation processing – Communication

Reexamination Certificate

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C358S001160

Reexamination Certificate

active

10096818

ABSTRACT:
An image forming apparatus includes a volatile memory configured to temporarily store usage information of the image forming apparatus, and a non-volatile memory configured to finally store the usage information. An access control device is provided to access the non-volatile memory and output at least an address, data, and a control signal thereto as private use signals independent from a control of the CPU. The access control device may copy the usage information of the non-volatile memory to the volatile memory before image formation is started, and periodically update the non-volatile memory with new usage information temporarily stored in the volatile memory during the image formation.

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U.S. Appl. No. 10/352,594, filed Jan. 29, 2003, Kobayashi.

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