Browse Prior Art Database

FUSER ROLL SLEEVE

IP.com Disclosure Number: IPCOM000022900D
Original Publication Date: 1976-Apr-30
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 225K

Publishing Venue

Xerox Disclosure Journal

Abstract

For use in a xerographic reproducing apparatus, a fuser roll structure 10 comprisIng a core member 12 having a sleeve 18 carried thereby and a heat source 16 disposed internally or externally of the core member. The fuser roll structure 10 is characterized by the fabrication process wherein the sleeve 18 is elevated in temperature above the operational temperature of the fuser roll structure 10 and/or the core 12 is chilled below ambient or room temperature. The sleeve 18 is then installed on the core 12, and the assembly allowed to return to normal room temperature thereby crea~ ting a secure shrink fit of the sleeve 18 onto the core 12. Structurally, the fuser roll 10 comprises a sleeve the in~ side diameter of which is slightly larger than the outside diameter of the core when the sleeve temperature is elevated above said operational temperature and/or the core is chilled below said room or ambient temperature. At the operating temperature or below the aforementioned shrink fit exists. The process is also suitable for the fabrica~~ tion of other types of roll structures for employment in a xerographic reproducing apparatus, for example, transport rolls which move the copy paper through the apparatus.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

FtJSER ROLL SLEEVE
ProposedB. 0. Wright Classification

U.S. Cl. 432/62
mt. Cl, F24j 3/02

For use in a xerographic reproducing apparatus, a fuser roll
structure 10 comprisIng a core member 12 having a sleeve 18
carried thereby and a heat source 16 disposed internally or
externally of the core member. The fuser roll structure 10
is characterized by the fabrication process wherein the
sleeve 18 is elevated in temperature above the operational
temperature of the fuser roll structure 10 and/or the core
12 is chilled below ambient or room temperature. The sleeve
18 is then installed on the core 12, and the assembly
allowed to return to normal room temperature thereby crea~
ting a secure shrink fit of the sleeve 18 onto the core 12.
Structurally, the fuser roll 10 comprises a sleeve the in~
side diameter of which is slightly larger than the outside
diameter of the core when the sleeve temperature is elevated
above said operational temperature and/or the core is
chilled below said room or ambient temperature. At the
operating temperature or below the aforementioned shrink
fit exists. The process is also suitable for the fabrica~~
tion of other types of roll structures for employment in a
xerographic reproducing apparatus, for example, transport
rolls which move the copy paper through the apparatus.

Volume 1 Number 4 April 1976 91

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Page 2 of 2

92 XEROX DISCLOSURE JOURNAL

Volume 1 Number 4 April 1976

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