| http://www.w3.org/ns/prov#value | - At least one of the above features and other advantages may be provided by an apparatus 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 h
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