Patent ID: 8810616

Claim:
A computer-based method for extending light emitting diode (LED) printbar life or improving image quality for an image recording device including a photoreceptor and an LED printbar with a first plurality of LEDs, comprising: displacing the photoreceptor in a process direction; determining, using a processor for at least one specially programmed computer, how often LEDs in the first plurality of LEDs are energized during a first operational time period in which the image recording device is operated to generate an image output; determining, using the processor, that a second plurality of LEDs in the first plurality of LEDs has been energized less than a third plurality of LEDs in the first plurality of LEDs; and using the processor, during a correction time period, to energize the second plurality of LEDs and de-energize the third plurality of LEDs while the second plurality of LEDs are aligned with an inter-document zone (IDZ) on the photoreceptor such that a plane, in a direction substantially orthogonal to the process direction, passes through the second plurality of LEDs, wherein: the correction time period is concurrent with the first operational time period.