Incremental printing of symbolic information – Ink jet – Controller
Patent
1994-01-03
1996-01-09
Hartary, Joseph W.
Incremental printing of symbolic information
Ink jet
Controller
347 92, B41J 205
Patent
active
054832659
ABSTRACT:
A thermal ink jet printhead is controlled to minimize missing droplets at elevated operating temperatures by varying the voltage and pulse width applied to the heater element that causes droplets to be formed and ejected. Increasing the applied voltage reduces the size of the formed droplets. At increased operating temperatures, smaller droplets minimize the introduction of air into the nozzles of the printhead upon ejection. Minimizing the introduction of air eliminates printhead misfirings and causes more consistent jetting of the ink droplets.
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Ims Dale R.
Kneezel Gary A.
LaDonna Richard V.
Rezanka Ivan
Richards W. Conrad
Hartary Joseph W.
Xerox Corporation
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