Browse Prior Art Database

LOW COST/LONG LIFE FUSE BELT

IP.com Disclosure Number: IPCOM000025909D
Original Publication Date: 1988-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 96K

Publishing Venue

Xerox Disclosure Journal

Abstract

It has long been desired to fuse toner images on paper in electrostatographic printing apparatus without the application of a release agent to the fuser member or to reduce the level of consumption of release agent. However, at very low release agent rates, the fuser rolls or belts tend to become contaminated with paper debris and loose fusing latitude, the difference between hot offset temperature and minimum fixed temperature. It is believed that the number of copies a fuser roll is capable of fusing is proportional to an arithmetic progression of the fusing surface area of the fuser roll. Thus, for example, if a one inch diameter fuser roll were capable of satisfactorily fusing 50,000 copies and one wanted to have the capability of being able to fuse one million copies, the diameter of the fuser roll would have to be increased to something of the order of 20 inches. This is not a very feasible design due to space constraints. The figures illustrate two alternative concepts wherein a fusing belt 10 is transported in an endless path around transport back-up roll 12 through a fuser nip formed between the belt 10 and pressure roll 14. Both figures illustrate very large surface area belts capable of use with high copy count fusers wherein paper contamination is reduced because of the increased fusing surface area.

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XEROX DISCLOSURE JOURNAL

LOW COST/LONG LIFE FUSE R BELT Proposed Classification Robert N. Finsterwalder U.S. C1.355/14FU
Edward L. Schlueter, Jr. Int. C1. G03g 15/00 Lawrence J. Lynd

NG. 1

Volume 13 Number 6 November/December 1988 319

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

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LOW COSTILONG LIFE FUSER BELT (Cont'd)

FIG. 2

XEROX 320 DISCLOSURE JOURNAL

Volume 13 Number 6 November/December 1988

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

Page 3 of 4

LOW COST/LONG LIFE FUSER BELT (Cont'd)

It has long been desired to fuse toner images on paper in electrostatographic printing apparatus without the application of a release agent to the fuser member or to reduce the level of consumption of release agent. However, at very low release agent rates, the fuser rolls or belts tend to become contaminated with paper debris and loose fusing latitude, the difference between hot offset temperature and minimum fixed temperature. It is believed that the number of copies a fuser roll is capable of fusing is proportional to an arithmetic progression of the fusing surface area of the fuser roll. Thus, for example, if a one inch diameter fuser roll were capable of satisfactorily fusing 50,000 copies and one wanted to have the capability of being able to fuse one million copies, the diameter of the fuser roll would have to be increased to something of the order of 20 inches. This is not a very feasible design due to space constraints. The figures illus...