Feedback control apparatus and method for an emissive printhead

Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light

Reexamination Certificate

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Details

C347S246000

Reexamination Certificate

active

07053920

ABSTRACT:
The present invention uses an open loop feedback technique to control emissive pixels of a printhead of a printer. The open loop feedback technique involves integrating the light intensity of the emissive pixel over a predetermined period of time, averaging the integrated value, comparing the averaged value to a threshold value, and adjusting the input voltage to the OLED of the pixel based on the comparison.

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