Heated pressure rolls

Details Heated pressure rolls Heated pressure rolls

1981-06-08

1983-03-22

Moses, R. L.

Photocopying

Including fiber optics

29447, 219216, 219388, 432 60, G03G 1520

Patent

active

043773362

ABSTRACT:
Pressure rolls useful in printing, embossing, coating, calendering, conveying, and fixing images to substrates. The pressure rolls comprise a cylindrical core provided with an array of axial slots, a heating element disposed in the slots, and a shell around the core. The pressure rolls may be employed in apparatus for fixing a toner material image pattern on a substrate such as a paper sheet. The pressure contact between the sheet and the pressure rolls is established by a hydrostatic assembly which may be pre-set.

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patent: 4329566 (1982-05-01), Hooper
patent: 4339194 (1982-07-01), Scribner

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