| 摘要 |
An ink jet printhead has a first array of actuable side walls defining channels, the actuable sidewalls being displaceable to cause a pressure change in selected channels, alternate channels in the array being firing channels; and a second array of parallel side walls offset in a channel height direction to define channel extension regions opening to a respective firing channel. A nozzle communicates with each channel extension region. The spacing between adjacent side walls in the second array is large to reduce impedance and the spacing between adjacent actuable side walls in the first array is small to provide for efficient actuation. |
