| US 7,603,048 B2 | ||
| Image forming apparatus and control method thereof | ||
| Satoshi Hasegawa, Izunokuni (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Tec Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jan. 30, 2007, as Appl. No. 11/668,571. | ||
| Prior Publication US 2008/0181623 A1, Jul. 31, 2008 | ||
| Int. Cl. G03G 15/20 (2006.01) | ||
| U.S. Cl. 399—68 [399/13; 399/69; 399/88] | 19 Claims |
| 1. An image forming apparatus comprising:
an auxiliary power supply configured to be detachably mountable on the image forming apparatus;
a fixing device including a main heater heated by a commercial power supply and an auxiliary heater heated by the auxiliary
power supply;
a detector that detects mounting and detachment of the auxiliary power supply; and
a control unit configured to perform control to carry out, when the mounting of the auxiliary power supply is detected by
the detector, continuous printing of sheets at printing speed higher than printing speed at the time when the auxiliary power
supply is not mounted.
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