Browse Prior Art Database

METAL/VITON COMPOSITE WIPING BLADE

IP.com Disclosure Number: IPCOM000025112D
Original Publication Date: 1983-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 63K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to release agent management (RAM) systems, a roll fuser and more particularly to a combination wick and blade structure for metering a quality of release agent material such as silicone oil to the surface of a fuser roll and/or cleaning the fuser roll surface.

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XEROX DISCLOSURE JOURNAL

METAL/VITON COMPOSITE WIPING BLADE ~ ~~

Robert S. Karz

Proposed Classification
U.S. C1. 355/15

Int. C1. G03g 21/00

This disclosure relates to release agent management (RAM) systems, a roll fuser and more particularly to a combination wick and blade structure for metering a quality of release agent material such as silicone oil to the surface of a fuser roll and/or cleaning the fuser roll surface.

For a wick/blade metering (or cleaning) RAM system, proper construction of the blade is necessary to obtain very low oil application rates to the fuser roll. The optimum blade is one that appears "hard" macroscopically and soft microscopically. There are two reasons for having a configuration like this: first, the wiping (or cleaning) action requires a fairly large shear force, and secondly, a certain amount of blade pressure is necessary for the blade to conform to the surface roughness of the fuser roll.

As illustrated in the figure, a "medium" to "soft" durometer Viton blade 10 (trademark of E. I. duPont) (~55 durometer) with squared edges and a metal backing plate 12 that extends almost to the wiping surface form the combination metering and cleaning blade structure to be used with a fuser roll 16. Micro- scopically, this blade will act "soft" and conform to the surface roughness of the fuser roll (or other surface to be metered). Macroscopically, this blade will act "hard" or stiff because of the metal backing plate. This composite blade has...