| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of an obstacle following stop of driving of electronic equipment by avoiding surely a situation wherein a power source supply state midway of operation of the electronic equipment is broken. SOLUTION: When a remained amount of a battery 4 is detected to be decreased to a prescribed specific value, a control part 34 controls drive timing of a switch part 35 which transits a power source supply state from the battery 4 to a printer from an on-state to an off-state based on an operation state of the printer 5 which an electric current monitoring part 36 monitors. |
