Browse Prior Art Database

FUSER ROLL

IP.com Disclosure Number: IPCOM000025058D
Original Publication Date: 1983-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 77K

Publishing Venue

Xerox Disclosure Journal

Abstract

In the soft-soft fuser design requiring a high pressure loading using for instance, a Viton coated fuser roll and pressure roll, the stripping reliability is of major concern. As the fuser and pressure roll diameter exceed certain upper limits, stripper fingers or air strippers have to be installed to assist stripping. IJsing the present state of art, to design a fuser for 17 inch wide paper, the outside diameter of the aluminum fuser rolls has to be increased over a fuser roll designed for 14 inch wide paper, to control the deflection and stress.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 76% of the total text.

Page 1 of 2

FUSER ROLL

Proposed Adalbert A. Lux Classification

U.S. C1. 355/3FU

Int. Cl. G03g 15/00

In the soft-soft fuser design requiring a high pressure loading using for instance, a Viton coated fuser roll and pressure roll, the stripping reliability is of major concern. As the fuser and pressure roll diameter exceed certain upper limits, stripper fingers or air strippers have to be installed to assist stripping. IJsing the present state of art, to design a fuser for 17 inch wide paper, the outside diameter of the aluminum fuser rolls has to be increased over a fuser roll designed for 14 inch wide paper, to control the deflection and stress.

This disclosure relates to a method of minimizing the fuser diameter and, therefore, eliminates the need for stripping assistance and at the same time maintains a reasonable axial heat conduction.

To this end the fuser roll 10 is fabricated from a tube consisting of two materials. The outer shell 12 is made from a thin wall steel tubing. This gives the tube rigidity and controls the deflection and stress. The inner tube 14 is made from a good thermal conductor (copper, aluminum). This material transfers heat in the axial direction, keeping the surface temperature inside and outside the paper path within reasonable limits. The two metals have to be in intimate contact. The outer surface of the fuser comprises a thin elastomeric layer 16 of, for example,

243

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

Page 2 of 2

FUSER ROLL...