Device for separating a transfer paper utilizing a separation vo

Details Device for separating a transfer paper utilizing a separation vo Device for separating a transfer paper utilizing a separation vo

1994-10-17

1996-09-17

Braun, Fred L.

Photocopying

Contact printing

Light boxes

271312, G03G 1514, G03G 2100

Patent

active

055573894

ABSTRACT:
A device for separating a transfer paper, onto which a toner image has been electrostatically transferred from the surface of a photosensitive member, from the surface of the photosensitive member. A separator roller made of an electrically conducting material is disposed close to the photosensitive member. A spacer assures that an appropriate gap is maintained between the photosensitive member and the separator roller. A voltage source which applies an AC voltage or a pulse voltage to the separator roller. The frequency of the applied voltage is selected to be from 200 Hz to 1 KHz or at 20 KHz or higher, and the voltage level can be controlled as a function of the separator roller temperature and/or moisture level or humidity.

REFERENCES:
patent: 3620615 (1971-11-01), Volkers
patent: 3912257 (1975-10-01), Gibbons
patent: 4260240 (1981-04-01), Pieper
patent: 4466729 (1984-08-01), Iwata
patent: 4896192 (1990-01-01), Kinoshita
patent: 4912515 (1990-03-01), Amemiya et al.
patent: 5182603 (1993-01-01), Yamada

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