Electrophotographic apparatus comprising improved thermal fixing

Details Electrophotographic apparatus comprising improved thermal fixing Electrophotographic apparatus comprising improved thermal fixing

1977-09-20

1979-07-17

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219388, 219483, 219492, 250317, H05B 100, G03G 1520

Patent

active

041616448

ABSTRACT:
An electric heater means thermally fixes a toner image to a copy sheet to produce a permanent electrostatic copy of an original document. The heater means is normally energized at partial power but is switched to full power by means of microswitches at the inlet and outlet of the heater means which are actuated by the copy sheet while the copy sheet passes through the heater means. The heater means is switched to full power for a shorter length of time during a multiple copy operation than during a single copy operation.

REFERENCES:
patent: 3364338 (1968-01-01), Holtkamp
patent: 3505497 (1970-04-01), Lawes et al.
patent: 3532855 (1970-10-01), Van Cleave
patent: 3697722 (1972-10-01), Furuichi et al.
patent: 3772497 (1973-11-01), Gray et al.
patent: 3783235 (1974-01-01), Sprague
patent: 3916146 (1975-10-01), Hutner
patent: 3989370 (1976-11-01), Mooney

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