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A FUSER DRIVE SYSTEM

IP.com Disclosure Number: IPCOM000023299D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-29
Document File: 2 page(s) / 389K

Publishing Venue

Xerox Disclosure Journal

Abstract

A roll fusing system permanently affixes toner particles to the copy sheet in an electrophotographic printing process, In the operating mode, the fuser roll is heated to the operating temperature with liquid release material being applied there-to. Contrawise, in the standby mode, the fuser roll is heated to a temperature lower than the operating temperature. To prevent the formation of a bead of release material on the fuser roll in the standby mode of operation, relative movement is generated between the fuser roll and backup roll. The drive system for rotating fuser roll 42 includes an endless belt 60 entrained about pulley 62. Pulley 62 is coupled to a reduction gear box 64 which, in turn, is coupled to motor 66. Belt 60 is entrained about clutch 68. Clutch 68 is mounted in the region of one end portion of fuser roll 42. In the standby mode, clutch 68 is in engagement and belt 60 drives fuser roll 42. In the operating mode, clutch 68 is disengaged and belt 60 no longer drives fuser roll 42. The angular rotation of fuser roll 42 in the standby mode, prevents the formation of the bead of release material on the surface thereof. The drive system for the standby mode of operation includes endless belt

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~XEROX DISCLOSURE JOURNAL

A FUSER DRIVE SYSTEM Proposed Classification
A. Bar-on u.s. Cl. 355/3
L.R. Hattler mt. Cl. G03g 15/00

4~72~

72 'V

'68

FIG. 2

A roll fusing system permanently affixes toner particles to
the copy sheet in an electrophotographic printing process, In
the operating mode, the fuser roll is heated to the operating
temperature with liquid release material being applied there-
to. Contrawise, in the standby mode, the fuser roll is heated
to a temperature lower than the operating temperature. To
prevent the formation of a bead of release material on the
fuser roll in the standby mode of operation, relative movement
is generated between the fuser roll and backup roll. The
drive system for rotating fuser roll 42 includes an endless
belt 60 entrained about pulley 62. Pulley 62 is coupled to a
reduction gear box 64 which, in turn, is coupled to motor 66.
Belt 60 is entrained about clutch 68. Clutch 68 is mounted in
the region of one end portion of fuser roll 42. In the standby
mode, clutch 68 is in engagement and belt 60 drives fuser roll
42. In the operating mode, clutch 68 is disengaged and belt 60
no longer drives fuser roll 42. The angular rotation of fuser
roll 42 in the standby mode, prevents the formation of the
bead of release material on the surface thereof. The drive
system for the standby mode of operation includes endless belt

66

FIG. 1

Volume 2 Number 3 May/June 1977 65

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A FUSER DRIVE SYSTEM (...