Method and arrangement for protecting sheets from charring in co

Details Method and arrangement for protecting sheets from charring in co Method and arrangement for protecting sheets from charring in co

1976-03-10

1977-09-20

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219388, 250319, 432227, H05B 100, G03G 1500, G03G 1300

Patent

active

040499472

ABSTRACT:
In an electro-photographic copier of the type wherein an image is formed on an image-carrying sheet and is thereafter fixed by subjecting the sheet at a fixing station to the influence of heat, a combination comprises a heating arrangement at the fixing station for fixing an image on a sheet, and a conveyor arrangement for advancing the sheet through the station at a predetermined speed sufficient to permit the heating arrangement to fix the image on the sheet. An automatic de-actuating timing switch is employed to prevent charring of the sheet in the event that the latter is advanced through the fixing station at a speed lower than said predetermined speed.

REFERENCES:
patent: 3697722 (1972-10-01), Furuichi et al.
patent: 3748088 (1973-07-01), Mooney et al.
patent: 3920328 (1975-11-01), Toto

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