| US 7,491,917 B2 | ||
| Fuser and image forming device | ||
| Satoshi Ueno, Kanagawa (Japan) | ||
| Assigned to Ricoh Company, Ltd., Tokyo (Japan) | ||
| Filed on Jun. 05, 2006, as Appl. No. 11/422,227. | ||
| Claims priority of application No. 2005-183623 (JP), filed on Jun. 23, 2005. | ||
| Prior Publication US 2006/0289419 A1, Dec. 28, 2006 | ||
| Int. Cl. H05B 6/14 (2006.01); G03G 15/20 (2006.01) | ||
| U.S. Cl. 219—619 [399/67; 399/328; 219/216] | 18 Claims |
| 1. A fuser, comprising:
a magnetic flux generation unit to generate a magnetic flux;
a heating member which is heated by an electromagnetic induction of the magnetic flux;
a fuser member to contact the heating member and heat a toner image so as to fuse the toner image onto a recording medium;
a detection unit configured to directly or indirectly detect whether an edge of the fuser member is in contact with the heating
member in a width direction of the fuser member; and
a magnetic flux adjusting member to reduce the magnetic flux acting upon an end in the width direction of the heating member
in accordance with a detection result of said detection unit.
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