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US 4,375,201 AGranted
Fixing apparatus
AssigneeSumimoto Electric Industries, Ltd.
InventorChiaki Kato
Life of this patent
Estimating the term…
Abstract
An apparatus for fixing a toner-image by transporting a toner image bearing material as it is held between a heated fixing roll and a compression roll. The apparatus uses a porous tube of tetrafluoroethylene resin with both ends sealed which is placed in contact with the fixing roll in an axial direction and a release agent is applied onto the surface of the fixing roll through the porous tube.
Claims7
An apparatus for fixing a toner image by transporting a toner image bearing material as it passes between a heated rotating fixing roll and a compression roll comprising:
- a stationary porous tube of tetrafluoroethylene resin having sealed ends and a release agent therein, said tube being disposed in contact with said fixing roll and being disposed along an axial direction of said fixing roll, said release agent being applied onto a surface of said fixing roll through open pores in said porous tube confronting said fixing roll, said pores in said tube not confronting said fixing roll being sealed.
Dependencies are inferred from the claim text.