Particle feed arrangement for applying solid particles to the im

Details Particle feed arrangement for applying solid particles to the im Particle feed arrangement for applying solid particles to the im

1978-10-17

1980-10-28

Wolff, John H.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

346 741, G03G 2100

Patent

active

042300690

ABSTRACT:
A particle feed arrangement for applying solid particles contained in a picle storage tank to an image carrier of a non-impact printer. The arrangement includes a conveying member in the form of an endless screw conveyor disposed to pass within a particle supply source to feed the particles to the vicinity of a surface of the carrier. A deflector is interposed between the carrier and the conveying member to collect the particles conveyed by the member. The deflector has one of its edges arranged in the immediate vicinity of the said carrier to form, in conjunction with the carrier, a trough of generally prismatic shape in which the particles so collected accumulate. The other edge of the deflector, which is formed by a rectangular plate, is virtually in contact with the peripheral extremities of the endless screw to cause the particles to be collected in the trough. The carrier is movable in a direction in which it carries the particles towards the edge of the said prism which is spaced from the surface of the carrier to allow the particles which are carried past this edge to remain applied only to the sensitized zones of the said image carrier and excess unapplied particles to be returned to the supply source.

REFERENCES:
patent: 2826168 (1958-03-01), Grant, Jr.
patent: 3246629 (1966-04-01), Shelffo
patent: 3951542 (1976-04-01), Ito et al.
patent: 4011835 (1977-03-01), Lewis
patent: 4054381 (1977-10-01), Bernhard
patent: 4101211 (1978-07-01), Kayson

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