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Browse Prior Art Database

APPARATUS FOR SUPPLYING RELEASE AGENT TO A BARE METAL FUSER ROLL

IP.com Disclosure Number: IPCOM000023533D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Document File: 4 page(s) / 717K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure is directed to a thermal fusing assembly com-prising a heated fuser member which contacts toner images electrostatically adhered to a support surface to soften a heat-softenable toner to effect bonding thereof to the sub-strate, the fuser member having a bare metal or glass surface;

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 52% of the total text.

Page 1 of 4

~~OX DISCLOSURE JOURNAL

APPARATUS FOR SUPPLYING RELEASE
AGENT TO A BARE METAL FUSER ROLL
Richard J. Murphy
Stephen Strella

Proposed Classification
U.S. Cl. 118/60
mt. Cl. B05c 11/00

This disclosure is directed to a thermal fusing assembly com-
prising a heated fuser member which contacts toner images
electrostatically adhered to a support surface to soften a
heat-softenable toner to effect bonding thereof to the sub-
strate, the fuser member having a bare metal or glass surface;
a backup or pressure roll forming a nip with the fuser member
to advance the support sheet so that the toner image on the
support surface contacts the fuser member; an offset pre-
venting fluid supply roll or belt comprising an elastomeric
material having an inherent supply of offset preventing fluid,
the fluid supply roll or belt being journaled or extended in
parallel relation with the fuser member; and means for heating
the toner image to fuse the image onto the copy sheet.

a

32

Volume 3 Number 1 January/February 1978 19

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

Page 2 of 4

APPARATUS FOR SUPPLYING RELEASE AGENT TO A BARE METAL FUSER
ROLL (Cont~d)

The offset preventing fluid supply means may be a roll or a
belt or both and comprises an elastomeric material having an
inherent capacity for offset preventing fluid, the fluid
supply means being capable of contact with the fuser roll.
Offset preventing fluid or liquid is transferred from the
fluid supply means to the bare metal or glass fuser roll
surface to replace offset preventing liquid or fluid depleted
from the surface of the fuser roll. Elastomeric materials
having an inherent capacity for offset preventing fluid are
those elastomeric materials which may be physically
impregnated with the offset preventing fluid and thereby
physically hold the offset preventing fluid therein; those
elastomeric materials the nature of which inherently provides
an offset preventing fluid by degradation or other reaction
mechanism whereby the material of the member itself degrades
or reacts to form upon its surface or within the elastomer an
offset preventing fluid; and the like.

Referring to the drawing, there is shown a heated pressure
fusing system which includes an internally heated fuser roll
2, a backup pressure roll 24 and an offset preventing fluid
supply roll 32 for metering offset preventing fluid (release
fluid) on fuser roll 2. Fuser roll 2 is a hollow circular
cylinder made of metallic or glass material 6 with a heat
source 10, for example a quartz lamp,...