Method for generating charge images of images to be printed...

Details Method for generating charge images of images to be printed... Method for generating charge images of images to be printed...

2007-06-12

2007-06-12

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

Reexamination Certificate

active

10493674

ABSTRACT:
A method and arrangement for producing charge images of images to be printed in an electro-photographic printer or copier device. The method and arrangement provides for printing of different gray scale levels on the print medium by controlling LEDs that are directed toward a photo-conducting intermediate image carrier to emit a different number of successive light pulses. The number of pulses depends on the gray scale level of the raster image portion. The light pulses overlap on the intermediate image carrier to effect correspondingly different charge levels. The intermediate carrier is developed by the application of toner and the toner is transferred to the print medium.

REFERENCES:
patent: 5917535 (1999-06-01), Corona
patent: 6292205 (2001-09-01), Nakayasu et al.

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