Apparatus and method for driving an ink-jet printhead

Details Apparatus and method for driving an ink-jet printhead Apparatus and method for driving an ink-jet printhead

2007-05-15

2007-05-15

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000

Reexamination Certificate

active

10899125

ABSTRACT:
An apparatus and method for driving an ink-jet printhead in which current is applied to a heater to heat ink to be supplied in an ink chamber to generate a bubble to eject ink from the ink chamber, the apparatus including a circuit that alternately applies current to the heater to alternate a direction of current flowing through the heater.

REFERENCES:
patent: 4015212 (1977-03-01), Miyata
patent: 5648805 (1997-07-01), Keefe et al.
patent: 5936644 (1999-08-01), Ono et al.
patent: 6056385 (2000-05-01), Tamura
patent: 6193345 (2001-02-01), Feinn et al.
Patent Abstracts of Japan, vol. 0130, No. 77 (M-801) Feb. 11, 1989 & JP 63 278858, Seiko Epson.

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