Device and method for the replacement of out-of-date developer

Details Device and method for the replacement of out-of-date developer Device and method for the replacement of out-of-date developer

2007-08-14

2007-08-14

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Development

C222SDIG001

Reexamination Certificate

active

10468237

ABSTRACT:
In order to replace out-of date flowing medium (16) in a system, comprising a component which ages, a defined amount of out-of-date flowing medium (16) is removed and the same amount of fresh flowing medium or fresh components (14) added and a given level (17″) of the flowing medium maintained.

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patent: WO 01/02170 (2001-01-01), None
patent: WO 01/06325 (2001-01-01), None
European Patent Office Patent Abstracts of Japan—Publication No. 59100471-Sep. 6, 1984.
European Patent Office Patent Abstracts of Japan No. 2000122424-Pub. Date 04-2800.

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