HP 5500dn HP Designjet 5500 series - User Guide - Page 76

using the image quality print In high quality modes, media advance problems might not appear as lines of banding, they might appear grainy instead. The banding or graininess will appear in all the colors. corrective action 1. If the image is grainy, this could also be a symptom of problems with the bi-directional alignment. Refer to test pattern 3: bi-directional alignment (below). If this pattern is OK, go to step 2. 2. Perform the accuracy calibration with the same printing material with which you experienced unacceptable image quality. 3. Perform the banding calibration with the same printing material with which you experienced unacceptable image quality. 4. If there is no improvement in print quality, contact HP. It is also possible that this kind of banding was caused because you were using printing material not supported by HP. In this case, try using HPsupported printing material and see whether the problem is solved. test pattern 2: color-to-color alignment If the printer has color-to-color alignment problems then the Image Quality Print in test pattern 2 (shown below) will have misaligned colors. corrective action 1. Perform printhead alignment with the same printing material with which you experienced unacceptable image quality. 2. If there is no improvement in print quality, contact HP. test pattern 3: bi-directional alignment If a printer has bi-directional alignment problems, lines are fuzzy or not straight. The pattern seen below is designed to highlight this kind of problem. Check the lines on this test pattern, if they have any defects like the ones described above, perform the corrective action. file:///C|/Documents%20and%20Settings/---/Desktop/HP/html/p0076.htm (4 of 5) [8/5/2002 3:24:16 PM]