Patent ID: 8339433

Claim:
A print head, comprising: a plurality of chips disposed and aligned, in a scan direction, in a linear array; respective pluralities of first and second matrix drivers on each chip connected to first and second channels, respectively; and, for each chip, first groups of light-emitting diodes (LEDs), each first group of LEDs including: a respective second group of LEDs, every LED in the respective second group of LEDs connected to a respective first matrix driver; and, a respective third group of LEDs, different from the respective second group of LEDs, every LED in the respective third group of LEDs connected to a respective second matrix driver, different from the respective first matrix drive, wherein: LEDs in said each first group of LEDs are disposed in a staggered arrangement in a process direction orthogonal to the scan direction such that all LEDs from the second group of LEDs alternate in the process direction with respective LEDs in the third group of LEDs; and, the respective pluralities of first and second matrix drivers are for activating in sequence the LEDs in the second and third groups of LEDs, respectively.