Heat and pressure fuser

Details Heat and pressure fuser Heat and pressure fuser

1992-05-26

1993-05-18

Grimley, A. T.

Photocopying

Contact printing

Light boxes

219216, 355285, G03G 1520

Patent

active

052125297

ABSTRACT:
A heat and pressure fuser includes a thin web which is wrapped around a portion of a heated fuser roll to form a fusing area. The web contacts the fuser over a relatively short wrap angle to reduce torque required to drive the fuser roll, thereby enabling a higher process speed. Fusing efficiency is maintained by use of a biasing mechanism which increases the pressure applied to the web both the entrance and exit areas of the fuser.

REFERENCES:
patent: 4689471 (1987-08-01), Pirwitz et al.
patent: 4822978 (1989-04-01), Morris et al.
patent: 4859831 (1989-08-01), Webb
patent: 4860047 (1989-08-01), Pirwitz
patent: 4996556 (1991-02-01), Gray, Jr.
patent: 5040777 (1991-08-01), Bell et al.
patent: 5046146 (1991-09-01), Bartman et al.

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