Patent ID: 7204585

Claim:
A method for printing an image comprising: performing a first print operation utilizing a printhead comprising a plurality of resistors by ejecting ink from a plurality of chambers each associated with at least one of at least some of the plurality of resistors; selectively energizing at least some of the plurality of resistors at an energy level insufficient to eject ink from the plurality of chambers by providing at least one pulse at a first frequency to each of at least some of the plurality of resistors; and performing a second print operation utilizing the printhead by ejecting ink from at least some of the plurality of chambers, wherein one or more of: the pulse has a duration that is at most 0.7 times a duration of another pulse provided to eject ink from the plurality of chambers; the first frequency is in a range between approximately 5 kHz and approximately 36 kHz; and, the first frequency is greater than approximately 1 kHz.