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CONCEPT OF COMPOSITE RUBBER COVER ON A SOFT ROLL FUSER FOR IMPROVED ROLL LIFE

IP.com Disclosure Number: IPCOM000024842D
Original Publication Date: 1982-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 68K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to an internally heated fuser roll structure 10 for fusing toner images. An internal source of heat such as a quartz lamp 11 serves to elevate the temperature of the roll to the required operating temperature.

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A 'EROX DISCLOSURE JOURNAL

CONCEPT OF COMPOSITE RUBBER COVER ON A SOFT ROLL FUSER FOR IMPROVED ROLL LIFE
Che C. Chow

Proposed Classification
U.S. C1. 355/3 FU Int. CI. G03g 15/00

Haribhajan S. Kocher

F/G. I FIG. 2

This disclosure relates to an internally heated fuser roll structure 10 for fusing toner images. An internal source of heat such as a quartz lamp 11 serves to elevate the temperature of the roll to the required operating temperature.

The fuser roll is intended for use with a release agent such as silicone oil. Accordingly, the fuser roll comprises, as disclosed in Figure 1, a relatively thin layer 12 of low diffusivity material secured to a heat conductive metal core 15. The fuser roll also comprises a thicker layer 14 having a relatively higher diffusivity than the layer 12. The function of layer 12 is to delay the migration of oil to the rubber core interface, thereby delaying the rubber delamination and increasing the roll life.

A modification of the structure shown in Figure 1 is depicted in-Figure 2. The roll structure 16 shown in Figure 2 comprises a low diffusivity layer 20 sandwiched between higher diffusivity layers 18 and 22, the latter of which is secured to a core


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Volume 7 Number 3 May/June 1982 157

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158

 XEROX DISCLOSURE JOURNAL Volume 7 Number 3 May/June 1982

[This page contains 1 picture or other non-text object]