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Browse Prior Art Database

FUSER ROLL HAVING TEXTURED SURFACE

IP.com Disclosure Number: IPCOM000023947D
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 340K

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. The surfaces of the prior art fuser rolls can have microsmooth finishes or embossed finishes. Fuser rolls having a pattern in the surface material, e.g., an embossed pattern, are described on page 99 of the Xerox Disclosure journal, Volume 2, Number 3, May/3une 1977.

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XEROX DISCLOSURE JOURNAL

FUSER ROLL HAVING TEXTURED Proposed Classification SURFACE U.S. CL 432/62 R,B.McGriff Int. 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. The surfaces of the prior art fuser rolls can have microsmooth finishes or embossed finishes. Fuser rolls having a pattern in the surface material, e.g., an embossed pattern, are described on page 99 of the Xerox Disclosure journal, Volume 2, Number 3, May/3une 1977.

The present disclosure is directed to providing the surface of a fuser roll with a finish which appears textured when examined with the aid of a microscope. The advantage of the textured surface on a fuser roll is improved copy quality. The surface texture must be microscopic so that no printout of the pattern is perceived on the final copy. The textured surface also provides a lower surface area which must be contacted by the stripping blade to strip the copy substrate from the surface of the fuser roll, Furthermore, a larger volume of release agent can be retained on the fuser roll surface because the release agent is retained in the microvoids of the textured surface.

In one embodiment of this disclosure, the texture is achieved by the steps of flame spraying a metal on the surface of a roll, grinding the flame sp...