Patent ID: 8376496
Filing Date: 2013-02-19
Classification: B41J

Abstract:
1. A method of insuring color consistency for a printing system in which an ink is printed by a plurality of printheads comprising: printing a first color patch, having a first pixel fill coverage, with each of the plurality of printheads with the ink is supplied at a first pressure; printing a second color patch, having a first pixel fill coverage, with each of the plurality of printheads with the ink supplied at a second pressure; measuring a print density of the first patch and the second patch for each of the plurality of printheads; comparing the print density of the first patch and second patch printed by each of the plurality of printheads; and adjusting a pressure of the ink supplied to each of the plurality of printheads to compensate for differences in density between the first patch and the second patch printed by each of the printheads.