Method of calibrating a spatial light modulator printing system

Details Method of calibrating a spatial light modulator printing system Method of calibrating a spatial light modulator printing system

1997-01-06

1998-11-24

Braun, Fred L.

Electrophotography

Image formation

Exposure

2502521, G03G 1504, G03G 2100

Patent

active

058420886

ABSTRACT:
A method for calibrating a printing system using a spatial light modulator. The spatial light modulator is an array of individually activated elements, all of which are set in a predetermined state, such as the ON state. Light is then directed onto the array and the resultant light passed into the printing system from the modulator is monitored by a sensor. Discrepancies between the light expected and received at the sensor are used to adjust the operation of the modulator to compensate for stuck or non-responsive pixels.

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patent: 5214474 (1993-05-01), Ishizuko
patent: 5323002 (1994-06-01), Sampsell et al.
patent: 5430524 (1995-07-01), Nelson

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