System for purging contaminants from a vacuum assisted image con

Details System for purging contaminants from a vacuum assisted image con System for purging contaminants from a vacuum assisted image con

1998-01-08

1999-02-16

Lee, S.

Electrophotography

Image formation

Development

1525652, 34 92, 34 95, 399348, G03G 1510

Patent

active

058730141

ABSTRACT:
A system for removing excess carrier liquid from an electrostatic image developed with liquid developing material made up of toner particles immersed in a liquid carrier medium on an image bearing member. The system includes an absorbent contact roller for absorbing at least a portion of the liquid carrier off of the liquid image, and vacuum source coupled to the contact roller for generating both negative pressure at the surface of the roller to draw the absorbed liquid through the contact roller, and positive air pressure for pushing contaminated liquid out of the roller.

REFERENCES:
patent: 4286039 (1981-08-01), Landa et al.
patent: 4990962 (1991-02-01), Kishi
patent: 5034778 (1991-07-01), Levanon et al.
patent: 5332642 (1994-07-01), Simms et al.
patent: 5493369 (1996-02-01), Sypula et al.
patent: 5752144 (1998-05-01), Mammino et al.
patent: 5758237 (1998-05-01), Abramsohn

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