Browse Prior Art Database

Composite Material for Hot Roll Fusers

IP.com Disclosure Number: IPCOM000118589D
Original Publication Date: 1997-Apr-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Sankaran, VR: AUTHOR

Abstract

Disclosed is a method for using composite material as coating material in a hot roll in an electrophotographic printer. The composite material provides the benefit of a compliant rubber which produces excellent fusing and a hard teflon layer which accounts for better wear-resistance; thereby, accomplishing functional performance and better life of the roll. The construction of the roll itself is an innovation. The aluminum core is bonded with silicone rubber with various hardness (shore A durometer from 30 to 80). The so-formed silicone rolls are coated with PFA, FEP, or PTFE. The finished roll performed well for fusing of the images transferred during the EP process from photoconductor drum to the paper. The resultant print samples showed high smear resistance and good fuse quality.

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Composite Material for Hot Roll Fusers

      Disclosed is a method for using composite material as coating
material in a hot roll in an electrophotographic printer.  The
composite material provides the benefit of a compliant rubber which
produces excellent fusing and a hard teflon layer which accounts for
better wear-resistance; thereby, accomplishing functional performance
and better life of the roll.  The construction of the roll itself is
an innovation.  The aluminum core is bonded with silicone rubber with
various hardness (shore A durometer from 30 to 80).  The so-formed
silicone rolls are coated with PFA, FEP, or PTFE.  The finished roll
performed well for fusing of the images transferred during the EP
process from photoconductor drum to the paper.  The resultant print
samples showed high smear resistance and good fuse quality.  In
addition, by virtue of this composite material, wide range of papers
with smoothness from 30 to 250 could be used.

      The first part of the composite roll was silicone rubber with
fillers to enhance thermal conductive properties of the roll.  The
fillers can be graphite, metal oxides, or ceramic material.  The
ceramic material, with a primer, will be necessary to bond the teflon
layer.  The teflon could be PFA, FEP, or PTFE.  The silicone rubber
provides the good fusing, and the teflon layer produces good smear
resistance, as well as good life to the roll.  Due to the
semi-compliancy of the roll, varieties of paper,...