Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1983-06-27
1985-07-02
Lawrence, Evan K.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
118647, 355 3DD, 355 14EH, 355 14D, G03G 1306, G03G 1506
Patent
active
045268509
ABSTRACT:
The present invention is a diode bias toning system and method for use in and with electrophotographic copying machines and the like, and provides a significant improvement over "floating" and "hard-wired" toning systems to provide a user with the benefit of self-compensation or self-adjustment sensitometry, while allowing better control of large density percentage images and providing a simple and practical means and method which yield the satisfactory inherent results or advantages of a "hard-wired" system. The employment of a single diode means connected between a development electrode and a variable high-voltage D.C. power supply, so as to prevent the passage of current between the development electrode and the supply means, thereby facilitates the usage of a single high-voltage D.C. power supply to supply both the corona charging and toning biasing functions of an electrophotographic copying machine or system.
REFERENCES:
patent: Re31371 (1983-09-01), Kuroishi et al.
Lawrence Evan K.
Photon Chroma, Inc.
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