Feedback control apparatus and method for an emissive printhead
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United States of America Patent
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May 30, 2006
Grant Date -
N/A
app pub date -
May 18, 2005
filing date -
Mar 11, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
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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