| 摘要 |
PROBLEM TO BE SOLVED: To prevent contamination of data in a nonvolatile storage device used for storing the length of time that a photoreceptor rotates. SOLUTION: In the case where, during printing, a counter as a print timer is operated and a count value reaches a specific value, the device is brought into a waiting-state and power source supply by a high-voltage power source unit 18 is stopped in specific sequence. Then, a nonvolatile memory 21 is started according to a specific procedure to read data, the read data and the count value of the print timer are added, and the result of the addition is written. |
