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Browse Prior Art Database

FUSER ROLL HAVING ETCHED SURFACE

IP.com Disclosure Number: IPCOM000023946D
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 358K

Publishing Venue

Xerox Disclosure Journal

Abstract

Bare-metal fuser rolls utilizing polymeric release agents for the release of electro-scopic toner have been described in the prior art. In U.S. Patent 4,101,686, there is disclosed a method of fusing toner images using functionalized polymeric release agents. Fuser members having hard, abrasion-resistant, bare-metal, alloy surfaces are described for fuser assemblies in office copier machines in U.S. Patent 4,078,285 and on page 115 of the Xerox Disclosure 3ournal, Volume 3, Number 2, March/April 1978. In certain embodiments, bare-metal fuser members perform more effectively if a specific finish is provided on the peripheral surface of a fuser member, The finish is significant in the control of the wrinkling of the substrate, e.g., paper,bearing toner images to be fused, when the substrate comes into contact with the surface of the fuser member. This problem appears to be a function of the roughness of the fuser roll surface, and fuser rolls having a pattern in the surface material, e.g., an embossed pattern, as described on page 99 of the Xerox Disclosure 3ournal, Volume 2, Number 3, May/3une 1977.

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XEROX DISCLOSURE JOURNAL

FUSER ROLL HAVING ETCHED SURFACE Proposed Classification 3oseph A. Swift U.S. Cl. 432/62

I. Cl. C21d 9/70

Bare-metal fuser rolls utilizing polymeric release agents for the release of electro- scopic toner have been described in the prior art. In U.S. Patent 4,101,686, there is disclosed a method of fusing toner images using functionalized polymeric release agents. Fuser members having hard, abrasion-resistant, bare-metal, alloy surfaces are described for fuser assemblies in office copier machines in U.S. Patent 4,078,285 and on page 115 of the Xerox Disclosure 3ournal, Volume 3, Number 2, March/April 1978. In certain embodiments, bare-metal fuser members perform more effectively if a specific finish is provided on the peripheral surface of a fuser member, The finish is significant in the control of the wrinkling of the substrate,
e.g., paper,bearing toner images to be fused, when the substrate comes into contact with the surface of the fuser member. This problem appears to be a function of the roughness of the fuser roll surface, and fuser rolls having a pattern in the surface material, e.g., an embossed pattern, as described on page 99 of the Xerox Disclosure 3ournal, Volume 2, Number 3, May/3une 1977.

In accordance with the present disclosure, a fuser surface roughness of about 10 -

30 microinches A. A. is preferred to eliminate the wrinkling problem. In order to obtain the desired roughness and to obtain a desirable finish upon the surf...