Patent ID: 7253828

Claim:
A method for calibrating a printer including a light-emitting diode (LED) printhead for non-uniformity on an image plane, wherein the LED recording elements are arranged in a plurality of arrays, the method comprising the steps: measuring a plurality of characteristics associated with each recording element; determining from the measured characteristics a plurality of parameters associated with each recording element; combining an adjustment factor for each of the plurality of parameters to determine an adjusted pixel brightness for each recording element; assigning correction factors to each recording element to correct for the adjusted pixel brightness for each recording element on the image plane; and storing the correction factors in a memory associated with the LED printhead, wherein the step of determining a plurality of parameters comprises determining a dynamic vector, and wherein the dynamic vector is configured to address a dynamic current starvation effect dependent upon a recording element exposure time relative to a rise and fall time of a light-output pulse from the LED printhead.