| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce an output voltage during power-saving time.SOLUTION: A power source device reduces an output voltage Va lower than a target voltage of an output voltage Vb during a sleep time, and comprises: a feedback unit 301b that controls the output voltage Va to be a predetermined voltage; a switching unit 401 that switches a voltage referred to by the feedback unit 301b to any one of the output voltage Va and output voltage Vb; and a CPU 303 that controls the switching unit 401 to switch the voltage referred to by the feedback unit 301b to the output voltage Va during a printing time and to the output voltage Vb during the sleep time.</p> |
