DOT GAIN AND COLOR LINEARIZATION DUAL CALIBRATION

摘要

A method of calibrating an electrographic printer, comprising: a) producing a latent image of a banded test pattern and a solid test pattern, using a beam of a light source of controllable power; b) developing the banded test pattern and the solid test pattern with a toner, utilizing an electrode with a developing voltage; c) measuring an average toner optical density of the developed banded test pattern and an average optical toner density of the developed solid test pattern; and d) adjusting one or both of (i) the developing voltage and (ii) the power and/or the diameter of the beam such that the measured average toner optical density of the two patterns matches, within predetermined limits, desired optical densities.