Imaging device with positive air pressure and electrostatic prec

Details Imaging device with positive air pressure and electrostatic prec Imaging device with positive air pressure and electrostatic prec

1995-10-06

1997-03-18

Royer, William J.

Electrophotography

Internal machine environment

Particle or contaminant control

G03G 2100

Patent

active

056131747

ABSTRACT:
An apparatus for illuminating a photoconductive surface. The apparatus includes a housing defining a chamber and an open end. An imaging device is placed in the housing chamber. The imager transmits light rays through the open end of the housing to the photoconductive surface. An air pump is coupled to the housing. The air pump maintains an outwardly directed flow of air from the open end of the housing so as to move particles away from the open end. Electrically biased electrodes are located between the imaging device and the photoconductive surface. They attract the particles so as to prevent the particles from contaminating the imaging device.

REFERENCES:
patent: 3754821 (1973-08-01), Whited
patent: 4387982 (1983-06-01), Stanley
patent: 4469430 (1984-09-01), Terashima
patent: 4530589 (1985-07-01), Adams
patent: 4970552 (1990-11-01), Okamoto et al.
patent: 5059991 (1991-10-01), Morisawa
patent: 5398099 (1995-03-01), Nagamochi et al.

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