HP 450c HP DesignJet 430, 450C, and 455CA Printer - User's Guide - Page 108

Special internal prints Using the Print Quality Test Print Correct Incorrect The lower test patterns check the color alignment; there are six patterns each with two different primary colors. If there is misalignment between the primary colors, the composite color will be present in one part of the circle and white will be visible at the opposite side of the circle. Misalignment can be horizontal or vertical, or a combination of the two. Correct Incorrect If either set of patterns shows an alignment problem (a third color is present or there is misalignment in the boxes or the circles of the test image, try the following: 1 Replace the failing cartridge and print the Print Quality Test Print again. 2 If the problem continues perform the Accuracy Calibration (see page 6-11) and print the Print Quality Test Print again to see if there has been any improvement. 5-16