| 摘要 |
A circuit 10 for driving first and second groups of actuating elements in a printhead comprises: a drive circuit 20 that provides a drive waveform to first electrodes of first and second groups of actuating elements and a voltage offset circuit 30 that provides a voltage offset to the second electrodes of the first or second groups of actuating elements to bias the second electrodes of the first and second groups relative to each other. The circuit 10 may also provide a time offset between the drive waveform applied to different actuating elements and the voltage offset may be adjustable. A method for compensating for non-uniformity between actuating elements in a printhead is also disclosed. |
