Circulation system for developing solution for a wet type...

Details Circulation system for developing solution for a wet type... Circulation system for developing solution for a wet type...

2006-05-12

2008-09-23

Royer, William J (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

07428397

ABSTRACT:
A wet type image forming apparatus, having a latent image forming unit with a photoconductive drum, and a developing unit with a developing solution supplying system that supplies developing solution to a developing roller, is provided. The developing roller is adapted to supply toner contained in the developing solution to the photoconductive drum. The developing solution supplying system includes a first roller and a second roller. The first roller and the second roller are arranged in vicinity to each other, and the second roller is in contact with the developing roller. A portion of the developing solution is retained in a pit portion between the first roller and the second roller. The developing solution supplying system includes a flow blocking system to prevent the developing solution from flowing down from an upstream surface of the second roller with respect to a rotating direction of the second roller toward the developing roller.

REFERENCES:
patent: 6173147 (2001-01-01), Nakashima et al.
patent: 6571075 (2003-05-01), Nakashima et al.
patent: 6687477 (2004-02-01), Ichida et al.
patent: 2005/0271422 (2005-12-01), Saito et al.
patent: 2005/0271423 (2005-12-01), Yamaguchi et al.
patent: 2005/0281587 (2005-12-01), Maseki et al.
patent: 2000-250318 (2000-09-01), None
patent: 2001-22185 (2001-01-01), None
patent: 2002-278300 (2002-09-01), None
English Language Abstract of JP 2000-250318.
English Language Abstract of JP 2002-278300.
English language abstract of JP 2001-22185.
U.S. Appl. No. 11/392,745 to Maseki, which filed on Mar. 30, 2006.
U.S. Appl. No. 11/382,817 to Saito et al., which filed on May 11, 2006.

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