Method and apparatus for enhancing charged area developed region

Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic

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347112, 347252, 358459, B41J 2385

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active

055812929

ABSTRACT:
The present invention is a an apparatus for enhancing the output along edges of charged area developed regions in a tri-level imaging system employing a pulse width and position modulated signal ROS for exposure. The invention enables the identification and selective alteration of video data used to drive the ROS so as to extend the developed regions by a selected amount and eliminate digitization artifacts present in the image to be printed. The extension of the charged area developed regions is accomplished by reducing or trimming the width of the exposure pulses in adjacent areas to enable development within a portion of those regions.

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