Patent ID: 7815275
Filing Date: 2010-10-19
Classification: B41J

Abstract:
1. A method for improving image quality printed by a pagewide printing array that is made of several inkjet dice positioned generally end-to-end at array seams; said method comprising the steps of: using the pagewide array to print multiple test-pattern cards having, for each seam, respective multiple candidate image-quality correction patterns; for each seam, a human operator's holding up each card in turn for inspection by the operator, and setting aside cards that appear relatively poor in quality until only one to three cards remain not set aside; for each seam, identifying the cards not set aside, by the operator's manually entering identities of those cards into a program dialog; and for each seam, automatically controlling the pagewide array, in subsequent printing of images, to select and use image-quality correction patterns corresponding to said identified cards for that seam.