Patent ID: 6388763
Filing Date: 2002-05-14
Classification: G06F

Abstract:
A method for processing a ROM image when supplying of electrical power to a laser printer has been interrupted, comprising the steps of:detecting a check word in each program region of a flash memory in the laser printer; checking whether or not the ROM image has been normally recorded in each program region based on the check word; setting an operation mode of the laser printer to a normal mode when it has been determined that the ROM image has been normally recorded in each program region; setting the operation mode of the laser printer to a down load mode when it has been determined that the ROM image has been abnormally recorded in each program region due to the interruption of supplying electrical power to the laser printer during a downloading of the ROM image; and loading the ROM image into the flash memory according to states of the ROM image when the operation mode is set to the downloading mode.