Developing head of electrophotographic system

Details Developing head of electrophotographic system Developing head of electrophotographic system

1984-12-06

1986-11-18

Lawrence, Evan K.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118662, 355 10, G03G 1510

Patent

active

046229159

ABSTRACT:
In a developing head of an electrophotographic system which develops an image by bringing a liquid developer into contact with a photosensitive face of electrophotographic material, through an opening provided in the developing head, a right angle is formed between the photosensitive face and the in-flow and out-flow route for the liquid developer and a gas for removing excess developer at the opening. A pressure-reducing chamber is formed between a frame around the opening and a frame surrounding the pressure-reducing chamber, both frames tightly contacting the electrophotosensitive material. Thus, the gap between the photosensitive face and a developing electrode is reduced and high speed for the gas for removing the developer is obtained. Liquid developer exuding from the frame around the opening is captured in the pressure-reducing chamber.

REFERENCES:
patent: 3342164 (1967-09-01), Lewis
patent: 3936854 (1976-02-01), Smith

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