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US 2003/0202053 A1Published application
Continuous stream ink jet printer with mechanism for asymmetric heat deflection at reduced ink temperature and method of operation thereof
AssigneeEastman Kodak Company
InventorsGilbert A. Hawkins, James M. Chwalek, David P. Trauernicht, Christopher N. Delametter
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Abstract
A continuous stream ink jet printer including a printhead having at least one nozzle or continuously ejecting a stream of ink droplets. A heater disposed adjacent to the nozzle thermally deflects selected ink droplets by asymmetrically heating the ink droplets to effect a printing operation. A cooling unit cools the ink provided to the printhead nozzle to increase the deflection angle of the droplets.
Claims15
A continuous stream ink jet printer, comprising:
- a printhead having at least one nozzle having an axis for continuously ejecting a stream of ink droplets;
- an ink supply for providing liquid ink to said printhead nozzle;
- a heater disposed adjacent to said nozzle for thermally deflecting selected ink droplets an angle with respect to said axis to effect a printing operation, and
- a cooling unit for cooling ink provided to said nozzle to thereby increase said deflection angle of said droplets.
1 more element
A method of printing with a continuous ink jet printer comprising:
- cooling ink to a temperature lower than an ambient temperature;
- ejecting the ink as a filament out of a nozzle along an axis;
- breaking the filament up into droplets;
- and
- wherein the ink is asymmetrically heated to selectively deflect the droplets off of the axis.
2 more elements
Dependencies are inferred from the claim text.