Browse Prior Art Database

INTERNALLY STRESSED BLADE CLEANING MEMBER

IP.com Disclosure Number: IPCOM000023376D
Original Publication Date: 1977-Aug-31
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 354K

Publishing Venue

Xerox Disclosure Journal

Abstract

There are known xerographic imaging systems wherein a blade cleaning member is utilized to remove residual toner from a photoreceptor. The blade cleaning member may comprise ma-terials such as polyurethanes, fluorocarbon polymers such as polyvinylidene fluoride and the like. There is now provided an internally stressed blade cleaning member which retains the ability to undergo compression and yet is incapable of any substantial extension. In such a member, the surface which first contacts the residual toner on the photoreceptor surface is typically referred to as the "leading surface".

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XEROX DISCLOSURE JOURNAL

INTERNALLY STRESSED BLADE Proposed Classification
CLEANING MEMBER U.S. Cl. 15/1.5
John H. Fare mt. Cl. A471 13/40

There are known xerographic imaging systems wherein a blade
cleaning member is utilized to remove residual toner from a
photoreceptor. The blade cleaning member may comprise ma-
terials such as polyurethanes, fluorocarbon polymers such as
polyvinylidene fluoride and the like. There is now provided
an internally stressed blade cleaning member which retains the
ability to undergo compression and yet is incapable of any
substantial extension. In such a member, the surface which
first contacts the residual toner on the photoreceptor surface
is typically referred to as the "leading surface".

According to the novel concept uniaxially oriented polymeric
fibers or rovings are incorporated into the blade with the
plane of orientation of the fibers corresponding to the ver-
tical axis of the blade. The relative distribution of the
embedded material is non-uniform and substantially all of the
embedded material is concentrated proximate to the leading
surface. Prior to the materials being embedded in the blade,
they are treated with an appropriate size or finish to ensure
excellent bonding to the blade material.

After the blade containing the embedded matter is prepared,
the oriented fibers are relaxed (shrunk) by heating the blade.
The manner in which such relaxation is accomplished can create
uniform shrinkage of the embedded materials or create areas
having...