| 摘要 |
<p>PROBLEM TO BE SOLVED: To establish a feeling of use by a user and convenience by auto-clear by appropriately executing auto-clear by preventing auto-clear from occurring in a complicated manner in the case of executing an auto-clear function for resetting setting after the lapse of no operation in a fixed time.SOLUTION: A control part (3) is configured to, when performing setting related to a plurality of setting items in accordance with an operation input to an operation part (4), measure a time when any operation input for performing setting is not performed for each of a plurality of setting items, and to execute auto-clear for resetting setting on the basis of the measured time, and to, when performing resetting to the setting items whose auto-clear has been executed during setting by a user, extend a time until executing auto-clear.</p> |
