| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To back up power supply not only to a controlling device but also to a driving force source when the power supply to a power source line is interrupted in electronic equipment provided with the controlling device and the driving source device, and to miniaturize the equipment with the miniaturization of a backup capacitor by utilizing electric power charged into the backup capacitor more efficiently for backup control. <P>SOLUTION: On the anode side of a counterflow prevention diode D1, the interruption of the power supply from an AC adaptor 20 to a power supply line Vcc is detected to output a backup signal. When the predetermined backup control is made, not only electric power to a record control device 100 but also electric power to a CR motor 63 for a capping operation are all supplied from the backup capacitor C1. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
