Back to results
US 5,091,752 AGranted
Image heating apparatus using film driven by rotatable member
AssigneeCanon Kabushiki Kaisha
InventorTamotsu Okada
Life of this patent
Estimating the term…
Abstract
An image heating apparatus includes a heater; a film movable in contact with a recording material carrying an image, wherein the image on the recording material is heated by heat from the heater through the film; a driving rotatable member for driving the film; wherein the driving rotatable member has a heat insulative surface layer.
Claims27
An image heating apparatus, comprising:
- a heater;
- a film movable in contact with a recording material carrying an image, wherein the image on the recording material is heated by heat from said heater through said film;
- an unheated driving rotatable member for driving said film, said driving rotatable member being positioned away from said heater;
- wherein said driving rotatable member has a heat insulative surface layer.
1 more element
An image heating apparatus, comprising:
- a heater;
- a film movable in contact with a recording material carrying an image, wherein the image on the recording material is heated by heat from said heater through said film;
- an unheated driving rotatable member for driving said film, said driving rotatable member being positioned away from said heater;
- wherein said rotatable member has a surface rubber layer having a thickness of 20 microns-1.5 mm.
1 more element
An image heating apparatus, comprising:
- a heater;
- a film movable in contact with a recording material carrying an image, wherein the image on the recording material is heated by heat from said heater through said film;
- a driving rotatable member for driving said film;
- wherein a frictional coefficient between a surface of said rotatable member and said film is 0.3-3.
1 more element
An image heating apparatus, comprising:
- a heater;
- an endless belt movable in contact with a recording material carrying an image, wherein the image on the recording material is heated by heat from said heater through said belt;
- a driving roller for -driving said belt;
- a follower roller rotatably following an inside surface of said belt;
- wherein a frictional coefficient between said driving roller and said belt is larger than a frictional coefficient between said follower roller and said belt.
2 more elements
Dependencies are inferred from the claim text.