Method and system of driving light source

Details Method and system of driving light source Method and system of driving light source

1986-06-02

1989-01-03

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358294, 315362, H04N 100

Patent

active

047960930

ABSTRACT:
A voltage having a polarity opposite to that of a voltage used applied to a light source in a period for reading or recording of a picture image is applied to the light source during predetermined periods other than the operational period to realize restoration of luminance of the light source, prolongation of operational life of the light source and high speed reading or recording speed.

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patent: 4152626 (1979-05-01), Hatta et al.
patent: 4210848 (1980-07-01), Juyuhi et al.
patent: 4327309 (1982-04-01), Wallot
patent: 4438374 (1984-03-01), Karius
patent: 4443741 (1984-04-01), Tamaka et al.
patent: 4459514 (1984-07-01), Movinoto et al.
patent: 4479120 (1984-10-01), Ohba et al.
patent: 4535341 (1985-08-01), Kun et al.
German Office Action dated Oct. 20, 1987.
Translation of the German Office Action supplied by the Japanese Patent Attorney for the Assignee of the U.S. and German applications.

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