Browse Prior Art Database

LOADING FOR ROLL FUSER WITH CENTRALLY SUPPORTED PRESSURE ROLL WHERE COPY SHEETS ARE END REGISTERED

IP.com Disclosure Number: IPCOM000024616D
Original Publication Date: 1981-Jun-30
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 83K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to a roll fuser apparatus generally indicated by reference character 10 which comprises a heated fuser roll 12 and a pressure roll 14 adapted to be pressure engaged therewith. The pressure roll 14 is characterized by a tubular member 16 mounted on a hub 18 carried by a shaft 20. The pressure roll 14 is mounted for movement in the vertical direction into pressure engagement with the roll 12 which is rotatably supported by bearing structures 22 into which end caps 24 are installed. The bearings are supported by brackets 26 which move upwardly against springs 28.

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 65% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

LOADING FOR ROLL FUSER WITH CENTRALLY SUPPORTED PRESSURE ~ ROLL WHERE COPY SHEETS

Proposed Classification
U.S. C1. 100/169 Int. C1. B30b 3/04

Y 20 Is' I4

This disclosure relates to a roll fuser apparatus generally indicated by reference character 10 which comprises a heated fuser roll 12 and a pressure roll 14 adapted to be pressure engaged therewith. The pressure roll 14 is characterized by a tubular member 16 mounted on a hub 18 carried by a shaft 20. The pressure roll 14 is mounted for movement in the vertical direction into pressure engagement with the roll 12 which is rotatably supported by bearing structures 22 into which end caps 24 are installed. The bearings are supported by brackets 26 which move upwardly against springs 28.

The springs 28 are positioned between the heads of bolts 30 and nuts 32 therefor. The bolt is inserted through the bracket 26 and a flange portion 34 of stationary brackets 36. Thus, the nuts 32 can be adjusted to vary the compressive forces against which the pressure roll 14 must act when pressure engaged with the roll 12.

The fuser 10 is adapted to work with copy sheets that are end registered, therefore, one end of the copy sheets is always adjacent one end of the fuser, for example, the right side of the fuser as viewed in the figure.

It has been found that with end registered copies of different sizes ranging from 210 to 364 mm. that the roll ends must be differentially loaded in order to maintain a uni...