Patent ID: 6814428
Filing Date: 2004-11-09
Classification: B41J,Y10T

Abstract:
A print head comprising:a plurality of orifices formed on the print head for ejecting ink from the print head; a plurality of bubble generators corresponding to the orifices for generating bubbles in the ink and ejecting the ink through the corresponding orifices; a plurality of transistors, wherein a transistor is electrically connected to a respective bubble generator for switching the bubble generator on and off; a plurality of power pads for providing power to one end of a group of bubble generators; a plurality of address pads, the address pads corresponding to each of the bubble generators for selecting one of the bubble generators in the group of bubble generators; and a plurality of ground pads for providing a ground connection to another end of the group of bubble generators, sets of adjacent ground pads being formed between the power pads and the address pads.