Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2011-08-02
2011-08-02
Peng, Charlie (Department: 2883)
Incremental printing of symbolic information
Ink jet
Controller
C347S005000, C347S018000, C347S023000, C347S049000, C347S056000, C347S057000, C347S074000, C347S075000, C347S076000
Reexamination Certificate
active
07988250
ABSTRACT:
A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore. An electrical pulse source is in electrical communication with the thermal modulator. The electrical pulse source is operable to provide a series of pulses to the thermal modulator that control the transient temperature lowering of the liquid. The series of pulses includes a first pulse applied at a first power level for transferring heat to the liquid, a second pulse applied at a second power level for transferring heat to the liquid, and a third pulse applied at a third power level for transferring heat to the liquid. The third power level is in between the first power level and the second power level.
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Delametter Christopher N.
Furlani Edward P.
Ghosh Siddhartha
Hawkins Gilbert A.
Eastman Kodak Company
Lam Hung
Peng Charlie
Zimmerli William R.
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