Device for extinguishing unnecessary electrostatic charge in ele

Details Device for extinguishing unnecessary electrostatic charge in ele Device for extinguishing unnecessary electrostatic charge in ele

1975-06-09

1977-02-22

Hix, L. T.

Photocopying

Including fiber optics

355 3R, 355 8, G03B 2700, G03G 1500

Patent

active

040089541

ABSTRACT:
In an electrophotographic copying machine having a transparent support for support thereon the original to be copied, an illumination device for illuminating the original on the transparent support and a photoreceptor surface adapted to be driven past charging, exposure, developing, transfer and cleaning stations, a discharging device for extinguishing unnecessary electrostatic charge on the photoreceptor surface which is formed at an area between each two adjacent areas to be optically exposed to the incoming light, which discharging device has at least one light guide having one end situated adjacent an intercepting mechanism and the other end situated in the vicinity of the photoreceptor surface. The intercepting mechanism is brought into operation to intercept passage of discharging light towards the photoreceptor surface.

REFERENCES:
patent: 3724942 (1973-04-01), Gibson et al.
patent: 3799666 (1974-03-01), Fukushima et al.
IBM Tech. Disclosure Bull.; vol. 16, No. 4, pp. 1262-1263; Sept. 1973; Bellamy, et al.

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