Browse Prior Art Database

SHEET STRIPPING APPARATUS FOR A ROLL FUSER

IP.com Disclosure Number: IPCOM000023688D
Original Publication Date: 1978-Oct-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 192K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to stripping of copy sheets from a fuser roll having a relatively thin (10 rnils) elastomeric layer such as Viton or silicone rubber for its outer surface, This is effected by means of very high viscosity silicone oil sufficiently concentrated on the backup or pressure roll such that at least the backside of the lead edge of the copy is tacked to the backup roll as the sheet exits from the nip formed between the fuser roll and the backup roll. In order to optimize the tacky nature of the silicone oil, the backup roll is thermally isolated to provide for significant cooling of the oil on the surface thereof as the roll rotates, In order to effect concentration of the silicone as contemplated, it is applied to the backup roll at an area thereof corresponding to the inter-document spacing and the synchronism of the fuser roll and the copy paper feed is such that the inter-document space and the lead edge of the sheet coincide.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

SHEET STRIPPING APPARATUS FOR Proposed Classification
A ROLL FUSER U,S, Cl. 271/174
John Trainor mt. Cl, B65h 29/54

This disclosure relates to stripping of copy sheets from a
fuser roll having a relatively thin (10 rnils) elastomeric
layer such as Viton or silicone rubber for its outer surface,
This is effected by means of very high viscosity silicone oil
sufficiently concentrated on the backup or pressure roll such
that at least the backside of the lead edge of the copy is
tacked to the backup roll as the sheet exits from the nip
formed between the fuser roll and the backup roll. In order to
optimize the tacky nature of the silicone oil, the backup roll
is thermally isolated to provide for significant cooling of
the oil on the surface thereof as the roll rotates, In order
to effect concentration of the silicone as contemplated, it is
applied to the backup roll at an area thereof corresponding to
the inter~document spacing and the synchronism of the fuser
roll and the copy paper feed is such that the inter~-document
space and the lead edge of the sheet coincide.

Volume 3 Number 5 September/October 1978 317

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Page 2 of 2

                  XEROX DISCLOSURE JOURNAL
318 Volume 3 Number 5 September/October 1978

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