| 摘要 |
PROBLEM TO BE SOLVED: To prevent contents stored in a nonvolatile storage device from being erased carelessly. SOLUTION: The nonvolatile storage device 62 storing information concerning the quantity of driving of a driving member driven according to a required task is equipped, and only when a erasure mode is set, execution of erasure of information stored in the nonvolatile storage device 62 is enabled. Thus, the contents stored in the nonvolatile storage device 62 is prevented from being carelessly erased by, for example, an input mistake or the like. |
