| US 7,579,716 B2 | ||
| Power storage device and image forming apparatus | ||
| Naoki Sato, Kanagawa (Japan); Masayuki Ohtani, Kanagawa (Japan); Masahide Nakaya, Kanagawa (Japan); and Hideo Kikuchi, Kanagawa (Japan) | ||
| Assigned to Ricoh Company, Limited, Tokyo (Japan) | ||
| Filed on May 23, 2007, as Appl. No. 11/802,485. | ||
| Claims priority of application No. 2006-143395 (JP), filed on May 23, 2006; and application No. 2007-087563 (JP), filed on Mar. 29, 2007. | ||
| Prior Publication US 2007/0274736 A1, Nov. 29, 2007 | ||
| Int. Cl. H02J 3/06 (2006.01) | ||
| U.S. Cl. 307—80 [307/70; 399/60; 219/216] | 9 Claims |
| 9. An image forming apparatus that includes a fixing unit that fixes a toner image, a heating unit that heats the fixing unit,
and a power storage device that stores therein power output from a power supply unit, the image forming apparatus comprising:
a power storing unit that includes a capacitor cell;
a switching unit that switches between a first power-supply path and a second power-supply path to supply power from the power
supply unit, the power storing unit being located on the first power-supply path, and the heating unit being located on the
second power-supply path;
a voltage changing unit that is located on the first power-supply path, and that changes a voltage value of power supplied
from the power supply unit; and
an output control unit that controls, when power is supplied to the first power-supply path, the voltage changing unit to
change a voltage value based on a stored voltage of the capacitor cells.
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