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Class Information
Number: 399/332
Name: Electrophotography > Image formation > Fixing (e.g., fusing) > By heat and pressure > Heated roller > Pressure rollers > Cyclically (e.g., with movement of copy)
Description: Subject matter wherein the fixing arrangement opens and closes at the point of contact with the movement of the copy medium therethrough.

Patents under this class:

Patent Number Title Of Patent Date Issued
8594524 Image forming apparatus Nov. 26, 2013
8577238 Fixing device and image forming apparatus Nov. 5, 2013
8391765 Fixing device and image forming apparatus Mar. 5, 2013
8224206 Fusing unit including roller adjustment mechanism and image forming apparatus having the same Jul. 17, 2012
8115796 Beltless tandem-type image forming apparatus Feb. 14, 2012
8086158 Method and apparatus for enhanced sheet stripping Dec. 27, 2011
7995958 Image forming apparatus Aug. 9, 2011
7894734 Pressure adjusting mechanism for a fixing device and image forming apparatus Feb. 22, 2011
7769335 Fixing apparatus Aug. 3, 2010
7668498 Fixing apparatus Feb. 23, 2010
7511249 Adjustment of temperature in a hot roller Mar. 31, 2009
7504605 Heating apparatus Mar. 17, 2009
7446281 Heating device Nov. 4, 2008
7299002 Heater, and image forming apparatus, heating method incorporating same Nov. 20, 2007
7013107 Systems and methods for continuous motion registration distribution with anti-backlash and edge smoothing Mar. 14, 2006
6591080 Loose sleeve pressure member Jul. 8, 2003
6246035 Heating device, image forming apparatus including the device and induction heating member included in the device Jun. 12, 2001
6114041 Fuser member with surface treated Al.sub.2 O.sub.3 and functionalized release fluids Sep. 5, 2000
6031215 Image heating device using induction heating for image heating Feb. 29, 2000
5987295 Image fixing apparatus and image fixing roller having a shortened warm-up time Nov. 16, 1999
5842100 Fixing unit Nov. 24, 1998
5842098 Fixing apparatus and fixing method for electrophotographic apparatus Nov. 24, 1998
5355203 Heat roll fixing unit with uniform heat distribution Oct. 11, 1994
5325166 Fuser overheat control Jun. 28, 1994
5321480 Fuser having a detachable belt Jun. 14, 1994
5305068 Continuous paper feed prevention lock mechanism for printer Apr. 19, 1994
5289248 Fixing unit and image forming apparatus having the same Feb. 22, 1994
5189470 Xerographic apparatus for label printer Feb. 23, 1993
5140378 Image forming apparatus with a pressure development unit Aug. 18, 1992
5111250 Heat-fixing device having a roller selectively loaded through an elastic element May. 5, 1992
5017970 Fixing device with movable nip region for use in copiers May. 21, 1991
4958195 Method and apparatus for fusing envelopes Sep. 18, 1990
4883941 Filament wound foil fusing system Nov. 28, 1989
4873553 Variable pressure controls of fixing device in electrophotographic copying machine Oct. 10, 1989
4806969 Fixing device Feb. 21, 1989
4719489 Recording apparatus having material feed mode dependent fixing control Jan. 12, 1988
4716435 Heat and pressure roll fuser and roll engaging mechanism therefor Dec. 29, 1987
4498757 Demountable, modular toner-fuser assembly for electrographic print apparatus Feb. 12, 1985
4473290 Toner image fixing device Sep. 25, 1984
4429987 Early fuser roll closure with reduced force Feb. 7, 1984
4392739 Electromechanically operated fuser roll closure Jul. 12, 1983
4363549 Electromechanically operated fuser roll closure Dec. 14, 1982
4341458 Thermal pressure fixing device Jul. 27, 1982
4248520 Electrophotographic copying apparatus with improved fixing arrangement Feb. 3, 1981
4232959 Toner image fusing apparatus Nov. 11, 1980
4162847 Hot roll fuser early closure inhibitor Jul. 31, 1979
3973844 Latching mechanism for the backup roll of a roll fuser employed in a copier apparatus Aug. 10, 1976
3945726 Electrophotographic fixing device Mar. 23, 1976

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