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IMPROVED TRANSFER ROLLER SYSTEM FOR XEROGRAPHIC REPRODUCTION MACHINE

IP.com Disclosure Number: IPCOM000023049D
Original Publication Date: 1976-Jul-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 209K

Publishing Venue

Xerox Disclosure Journal

Abstract

A transfer roller 10 is mounted to pivot about an axis 12 so that the roller can move in a direction which is at least generally perpendicular to a photoreceptor (not shown) at the point of contact. A first set of negator (constant force) springs 14 and 16 are used to offset the weight of the transfer roller mechanism about its pivotal axis. To bias the roller into contact with the photo~ receptor, a second set of negator springs 18 and 20 are adjustably mounted so that they can be moved to apply a force at a desired distance from the pivotal axis. With this arrangement, the force biasing the roller into contact with the photoreceptor remains constant during the opera~~ tion of a xerographic reproduction machine.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

IMPROVED TRANSFER ROLLER SYSTEM FOR XEROGRAPHIC REPRODUCTION MACHINE
Joseph Fantuzzo

Proposed Classification
U.S. CL 355/3
Int. Cl. G03g 15/00

A transfer roller 10 is mounted to pivot about an axis 12
so that the roller can move in a direction which is at
least generally perpendicular to a photoreceptor (not
shown) at the point of contact. A first set of negator
(constant force) springs 14 and 16 are used to offset the
weight of the transfer roller mechanism about its pivotal
axis. To bias the roller into contact with the photo~
receptor, a second set of negator springs 18 and 20 are
adjustably mounted so that they can be moved to apply a
force at a desired distance from the pivotal axis. With
this arrangement, the force biasing the roller into contact
with the photoreceptor remains constant during the opera~~
tion of a xerographic reproduction machine.

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Volume 1 Number 7 July 1976 65

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66 XEROX DISCLOSURE JOURNAL

Volume 1 Number 7 July 1976

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