Method and apparatus for controlling the application of a fuser

Details Method and apparatus for controlling the application of a fuser Method and apparatus for controlling the application of a fuser

1989-04-07

1991-09-17

Braun, Fred L.

Photocopying

Contact printing

Light boxes

G03G 1520, G03G 2100

Patent

active

050499440

ABSTRACT:
Apparatus and method for applying offset preventing liquid to a fuser roll including an oil impregnated web member adapted to be moved by a motor from a supply core to a take up core; and a control to vary the duty cycle operation of the motor to drive the web member at a relatively constant liner speed at a contact nip, the control including a timer to monitor the cumulative time of operation of the motor and to progressively decrease the duty cycle of the motor in response to the cumulative time of operation wherein the progressively decreased duty cycle of operation compensates for the increasing radius of the web member on the take up core to maintain the relatively constant linear speed at the contact nip.

REFERENCES:
patent: 3526457 (1970-09-01), Dimond et al.
patent: 3672764 (1972-06-01), Hartwig et al.
patent: 3941558 (1976-03-01), Takiguchi
patent: 4393804 (1983-07-01), Nygard et al.
patent: 4557588 (1985-12-01), Tomosada
patent: 4935785 (1990-06-01), Wildi et al.
patent: 4939552 (1990-07-01), Nakanishi
patent: 4949130 (1990-08-01), Torino

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