Pressing roll for a fixing device

Details Pressing roll for a fixing device Pressing roll for a fixing device

1996-04-30

1998-10-13

Gerrity, Stephen F.

Presses

Concurrent pressing and conveying

Roll type

492 53, 492 56, B30B 304

Patent

active

058196463

ABSTRACT:
A fixing device comprises a thermal fixing roll and a pressing roll forming a nip portion together with the thermal fixing roll. The pressing roll included in the fixing device comprises a core, a sponge rubber layer covering the outer circumferential surface of the core and provided with a large number of through-holes extending in parallel with the axis of the core and arranged equidistantly from the outer circumferential surface of the core, a rubbery elastic layer formed in a thickness of 350 to 4500 .mu.m to cover the outer circumferential surface of the sponge layer, and a fluorocarbon resin layer formed to cover the outer circumferential surface of the rubbery elastic layer.

REFERENCES:
patent: 2263285 (1941-11-01), Bolog
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patent: 2685548 (1954-08-01), Drozdowski
patent: 3467009 (1969-09-01), Ross
patent: 4178200 (1979-12-01), Hakert et al.
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patent: 5403995 (1995-04-01), Kishino et al.
patent: 5468531 (1995-11-01), Kikukawa et al.
patent: 5520600 (1996-05-01), Fukumoto
patent: 5561511 (1996-10-01), Mizunuma et al.

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