Offset-preventing fuser roll

Details Offset-preventing fuser roll Offset-preventing fuser roll

G - Physics

03

G

314/38.5

G03G 15/20 (2006.01)

Patent

CA 1053319

METAL FOAM UNDER CONFORMABLE SURFACE REPLACEABLE ABSTRACT OF THE DISCLOSURE Fuser apparatus for affixing toner images to a substrate by means of heat and pressure. The apparatus is characterized by a heated fuser roll which is internally heated and has a reservoir of offset preventing material supported by a tubular member com- prising the core or base of the fuser roll. A resilient, low sur- face energy layer of a lesser thickness than the reservoir is ad- hered thereto. The reservoir comprises a porous, thermally con- ductive member through which offset preventing material diffuses during operation of the apparatus. The offset preventing material also diffuses through the resilient layer and forms a thin coating on the surface thereof to form a boundary layer for preventing toner from offsetting to the resilient material.

212436

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