Browse Prior Art Database

POROUS BACK-UP ROLL FOR A ROLL FUSER

IP.com Disclosure Number: IPCOM000022882D
Original Publication Date: 1976-Mar-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 217K

Publishing Venue

Xerox Disclosure Journal

Abstract

A fuser assembly in which a toner powder image is permanently affixed to a sheet of support material, The fuser assembly includes a heated fuser roll 10 and a back-~uproll 12, Support material 14, with the toner powder image thereon, is interposed between rolls 10 and 12 with the toner powder image contacting roll 10, Release material applicator 16 applies release material to roll 10, Stripper blade 18 assists in separating support material from roll 10 after the toner powder image has been permanently affixed thereto,

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

A POROUS BACK~t1P ROLL FOR A ROLL FUSER
J, P~ Vineski

Proposed Classification

U~S~C1~ 117/21

Int, Cl, B44d 1/094

A fuser assembly in which a toner powder image is permanently
affixed to a sheet of support material, The fuser assembly
includes a heated fuser roll 10 and a back-~uproll 12, Support
material 14, with the toner powder image thereon, is interposed
between rolls 10 and 12 with the toner powder image contacting
roll 10, Release material applicator 16 applies release material
to roll 10, Stripper blade 18 assists in separating support
material from roll 10 after the toner powder image has been
permanently affixed thereto,

Back-~up roll 12 is made from a hollow, fine porous structure,
such as an open cell moderately rigid foam elastomer, A blower
system 20 mounted interiorly of roll 12 maintains a reduced
pressure therein, In nip 22, the porous structure of roll 12
is closed as sheet 14 passes therethrough

                          0 After passing
through nip 22, sheet 14 enters the region where the pores
of roll 14 are opened and the reduced pressure of roll 12
strips sheet 14 from roll 10,

/6

Volume 1 Number 3 March 1976 19

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20 XEROX DISCLOSURE JOURNAL

Volume 1 Number 3 March 1976

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