Liquid development apparatus with perforated liquid carrier shee

Details Liquid development apparatus with perforated liquid carrier shee Liquid development apparatus with perforated liquid carrier shee

1989-03-17

1990-07-17

Prescott, A. C.

Photocopying

Contact printing

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355259, 355262, G03G 1510

Patent

active

049424750

ABSTRACT:
An electrostatically charged image is applied to a smooth surface and moved past a development zone in which a carrier sheet perforated with a multitude of bores is also located. A layer of developing liquid is applied under gradually increasing pressure to a first surface of the carrier sheet so that the applied liquid squeezes through the bores to and beyond a second, opposite surface of the carrier sheet. The liquid emerges above the opposite surface of the carrier sheet to produce a multitude of part-spherical bulges. Field concentration occurs on the part-spherical surfaces of the individual tiny bulges. The first surface of the carrier sheet preferably exhibits lyophilic characteristic to the developing liquid, while the second surface exhibits lyophobic characteristic.

REFERENCES:
patent: 4400079 (1983-08-01), Landa
patent: 4410260 (1983-10-01), Kuehnle
patent: 4493550 (1985-01-01), Takekida
patent: 4504138 (1985-03-01), Kuehnle et al.

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