Apparatus and method for fine tuning a print engine on a line start pixel
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United States of America Patent
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Issued Date -
Sep 21, 2006
app pub date -
Mar 10, 2006
filing date -
Mar 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The need for horizontal alignment of a laser printer print head is a well-known challenge. It is necessary to ensure that the print head starts printing a next line in alignment with the immediately previous line to guarantee an eye-pleasing printed image. The invention provided disclosed a method and apparatus for the purpose of horizontal alignment by using a higher frequency than the horizontal synchronization frequency to adjust the print head position to 1/n.sup.th accuracy. This is further applicable for the purpose of using a single controller that is designed to drive multiple types of print heads, each having its own printing and alignment characteristics.
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