US 7,477,867 B2
Fixing device having cleaner and temperature detector
Chikara Hiraoka, Hitachi (Japan); Toru Hanashima, Hitachi (Japan); Masahiko Saito, Hitachi (Japan); Shunichi Oohara, Hitachinaka (Japan); and Toshio Ogiso, Hitachi (Japan)
Assigned to Ricoh Printing Systems, Ltd., Tokyo (Japan)
Filed on Aug. 11, 2005, as Appl. No. 11/201,226.
Claims priority of application No. 2004-234251 (JP), filed on Aug. 11, 2004.
Prior Publication US 2006/0034646 A1, Feb. 16, 2006
Int. Cl. G03G 15/20 (2006.01)
U.S. Cl. 399—327 17 Claims
OG exemplary drawing
 
1. A fixing device comprising:
a heating roller,
a pressing belt which forcibly contacts the heating roller,
a temperature detecting means which touches a surface of the heating roller at a predetermined width position of the heating roller to sense the surface temperature of the heating roller, and
a cleaning means contacting the pressing belt to clean a belt surface thereof, where the cleaning means is provided at a predetermined width position of the pressing belt corresponding in position to the predetermined width position of the heating roller where the temperature detecting means touches the surface of the heating roller, and the cleaning means is configured to be driven by the pressing belt.