| 摘要 |
When a power switch key is operated to turn off a printing apparatus currently set in power-on state and voltage value of a battery in this situation lowers 6.9 V, a display of LCD is turned out and operation keys except for the power switch key are locked so that the printing apparatus is placed in seeming power-off state. If the operation key is thereafter operated under seeming power-off state and voltage value of the battery in this situation lowers 6.9 V, the display of LCD is turned on and the operation keys are unlocked so that the printing apparatus is placed in power-on state from seeming power-off state. Accordingly, even if the printing apparatus is set in seeming power-off state due to significant drop in voltage of the battery, the printing apparatus can be placed in power-on state immediately upon operation of the power switch key. |
