Photocopying – Contact printing – Light boxes
Patent
1988-07-29
1990-08-14
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355285, 355289, 355290, 355295, G03G 1520
Patent
active
049491300
ABSTRACT:
A heat-fixing apparatus includes a heating roll constituted by a cylindrical core coated with a heat-resistant, elastic layer and a resin surface layer having release properties, which is to be brought into contact with a toner inage-bearing sheet member; a pressure roll in pressed contact with said heating roll to provide a nip portion therebetween; a cleaning roll made of a metal material and rotatably pressed to said heating roll; and a scraper in slidable contact with the outer surface of said cleaning roll. The scraper includes a scraper element held between a support plate and a spaced holding plate by screws extending through longitudinally enlarged holes in the scraper element, to prevent thermal expansion-induced deformation of the scraper element.
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Grimley A. T.
Hitachi Metals, LTD
Smith Matthew S.
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