Browse Prior Art Database

FUSER THERMAL DETECTOR

IP.com Disclosure Number: IPCOM000022949D
Original Publication Date: 1976-May-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 290K

Publishing Venue

Xerox Disclosure Journal

Abstract

A fuser assembly 42 includes a heated fuser roll 44 and a back-up roll 46. Fuser roll 44 rotates in the direction of arrow 74 and back-up roll 46 rotates in the direction of arrow 46, A sheet of support material having a toner powder image thereon passes through nip 62, Back-up roll 46 includes a rigid steel core 56 mounted rotatably on a shaft 68. An elastomeric layer 70 is entrained about core 66 and secured thereto, Fuser roll 44 includes a cylindrical core 72 having a heating element 76 disposed internally thereof. Cylinder 72 is fabricated from a thermally conductive metallic material. Temperature detecting means 52 is in contact with cylinder 72 and

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

A FTJSER THERMAL DETECTOR Proposed Classification

An Bar-on tJ.S, Cl. 117/21
mt. Cl, B44d. 1/094

86z~

80 ~.

I

-V

84

PIG. 2

PIG. /

Volume 1 Number 5 May 1976 29

~ 84

PIG, 3

A fuser assembly 42 includes a heated fuser roll 44 and a

back-up roll 46. Fuser roll 44 rotates in the direction
of arrow 74 and back-up roll 46 rotates in the direction
of arrow 46, A sheet of support material having a toner
powder image thereon passes through nip 62, Back-up roll
46 includes a rigid steel core 56 mounted rotatably on a
shaft 68. An elastomeric layer 70 is entrained about
core 66 and secured thereto, Fuser roll 44 includes a
cylindrical core 72 having a heating element 76 disposed
internally thereof. Cylinder 72 is fabricated from a
thermally conductive metallic material. Temperature
detecting means 52 is in contact with cylinder 72 and

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

Page 2 of 2

A FTJSER THERMAL DETECTOR (Cont~d)

includes supporting means 78, Supporting means 78 comprises
a convex member 80 and a concave spherical member 82. Planar
surface 84 is coated with Teflon to provide lubrication and
reduce wear, Spherical member 82 is mounted movably in
convex member 80 and is free to rotate in any direction,
Supporting means 78 includes a convex member 80 and a
truncated spherical member 82 mounted rotatably therein,
Spherical member 82 is truncated to form planar surface
84 which contacts cylindrical member 72, Spherical sur-
face 86 of member 82 is mou...