Roll fixing apparatus for a copying machine

Details Roll fixing apparatus for a copying machine Roll fixing apparatus for a copying machine

1982-01-25

1983-06-21

Prescott, A. C.

Photocopying

Including fiber optics

355 3SH, 355 14FU, 118DIG15, 430 98, 219216, G03G 1500, G03G 1520

Patent

active

043891144

ABSTRACT:
An electrophotographic copying machine has a device for fixing toner. The fixing device is constructed such that it has a base support with two pairs of locating holes for a pair of spaced apart lower end blocks having means to support bearings which rotatably support the lower fixing roller. There is an upper pressure roller which rests upon the lower roller. The upper roller is rotatably supported by bearings which are clamped downwards through engagement with "U" Bolts. In turn, the "U" Bolts are yieldably attached through the locating holes to the base support of the fixing unit. The "U" Bolts are threaded at the respective straight shanks, which allows for easy adjustment of the roller nip pressure through springs and adjusting nuts, engaged to the shanks of the "U" Bolts beneath the base support.

REFERENCES:
patent: 4188109 (1980-02-01), Idenawa et al.
patent: 4200389 (1980-04-01), Matsui et al.
patent: 4272666 (1981-06-01), Collin
patent: 4290691 (1981-09-01), Giorgini
patent: 4341458 (1982-07-01), Glasa et al.
patent: 4357094 (1982-11-01), Zepko

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