Three roll fuser

Details Three roll fuser Three roll fuser

1991-11-18

1993-05-11

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430124, 355290, G03G 1320, G03G 1520

Patent

active

052099970

ABSTRACT:
A three roll fuser incuding a fuser roll, pressure roll and a backup roll. The backup roll is crowned and is supported in pressure engagement with the fuser roll to form a first nip while the fuser roll is also supported in contact with the pressure roll. The pressure engagement of the crowned roll with the fuser roll eliminates nonuniform nip loading in wide fusers as well as providing uniform velocity through the fuser roll/pressure roll nip.

REFERENCES:
patent: 3945726 (1976-03-01), Ito et al.
patent: 4214549 (1980-07-01), Moser
patent: 4218499 (1980-08-01), Shinohara et al.
patent: 4943831 (1990-07-01), Geraets et al.
patent: 4977431 (1990-12-01), Fuji

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