| 摘要 |
A printhead for an inkjet printer is disclosed. The printhead has an elongate wafer substrate and an array of nozzles fabricated on the elongate wafer substrate. The array of nozzles is arranged in a first row and a second row extending parallel to each other and the longitudinal extent of the wafer substrate. Each nozzle has an ejection aperture and an actuator for ejecting printing fluid through the ejection aperture. Each of the actuators has a pair of electrodes spaced apart from each other in a direction transverse to a long edge of the wafer substrate such that one of electrode of each of the electrode pairs is proximate the long edge of the wafer substrate and the other electrode of each of the electrode pairs is remote from the long edge. The printhead also has drive circuitry formed on one surface of the wafer substrate for supplying current to the electrodes of the actuators. The drive circuitry is supplied with power and data along the long edge of the wafer substrate. At least one of the electrodes remote from the long edge of the first row share a current path which conducts current from the drive circuitry to the electrodes with at least one of the electrodes proximate the long edge of the second row, the first row being nearer to the long edge than the second row.
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