Browse Prior Art Database

LOW WEAR FUSER ROLL TEMPERATURE SENSING DEVICE

IP.com Disclosure Number: IPCOM000026121D
Original Publication Date: 1990-Jun-30
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 63K

Publishing Venue

Xerox Disclosure Journal

Abstract

It is desirable and even sometimes necessary to monitor or sense the temperature of the surface of a fuser roll in an electrostatographic printing machine. One way to sense the temperature is with a contact type temperature sensing device such as a thermister type device. The contact between the roll and the sensing device results in wear in the surface of the fuser roll which causes a degradation in copy quality forcing premature fuser roll replacement. The Figure illustrates a device which minimizes this wear problem by providing a silicone oil film between the fuser roll and the temperature sensing device to prevent buildup of abrasive wear causing material and produce improved contact point lubrication.. The thermister sensor 10 is urged against the fuser roll 12 by spring 14. A silicone oil supply such as wick reservoir 16 surrounds the sensor and has a permeable membrane 18 between it and the fuser roll surface which will allow a low rate of oil flow from the wick reservoir to the roll contact 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 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

LOW WEAR FUSER ROLL TEMPERATURE SENSING DEVICE U.S. C1.355/289 George J. Haupt
Mark S. Gibson

Proposed Classification

Int. C1. G03g 15/20

XEROX DISCLOSURE JOURNAL - Vol. 15, No. 3 May/June 1990 161

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

Page 2 of 2

LOW WEAR FUSER ROLL TEMPERATURE SENSING DEVICE(Cont'd)

It is desirable and even sometimes necessary to monitor or sense the temperature of the surface of a fuser roll in an electrostatographic printing machine. One way to sense the temperature is with a contact type temperature sensing device such as a thermister type device. The contact between the roll and the sensing device results in wear in the surface of the fuser roll which causes a degradation in copy quality forcing premature fuser roll replacement. The Figure illustrates a device which minimizes this wear problem by providing a silicone oil film between the fuser roll and the temperature sensing device to prevent buildup of abrasive wear causing material and produce improved contact point lubrication.. The thermister sensor 10 is urged against the fuser roll 12 by spring 14. A silicone oil supply such as wick reservoir 16 surrounds the sensor and has a permeable membrane 18 between it and the fuser roll surface which will allow a low rate of oil flow from the wick reservoir to the roll contact surface.

162 XEROX DISCLOSURE JOURNAL - Vol. 15, No. 3 May/June 1990

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