Method and apparatus for correcting printing distortions in an ink jet printer
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United States of America Patent
Stats
-
May 30, 1995
Grant Date -
N/A
app pub date -
Feb 24, 1992
filing date -
Feb 24, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Printing distortions caused by ink stream/charge tunnel misalignment, charge tunnel mis-dimensioning or a variation in drop spacing or changes in ink resistivity are corrected by measuring the actual induction co-efficients for a particular printer. For this purpose, charge sensors located along the ink stream or adjacent the ink catcher detect induced charges from which the induction co-efficients are calculated by a programmable controller. These co-efficients are used to adjust the charge tunnel voltages to reduce or eliminate printing distortion.
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Cited Art Landscape
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