HP Designjet 4500 Series - Quick Reference Guide

Corrective action
1. Align the printheads, using the same paper type with which you were experiencing unacceptable
print quality, if feasible (some paper types are not suitable for printhead alignment). See
Align the
printheads.
2. If there is no improvement in print quality, contact your customer service representative.
Interpret Image Diagnostics part 2
The purpose of part 2 is to test whether the printheads and the paper advance mechanism are working
correctly. This part of the print should not be used to check for color consistency or accuracy.
Banding
Banding has occurred when you see repetitive horizontal bands within the printed image. They can
appear as light bands:
or dark bands:
94 Chapter 9 How do I... (Image Diagnostics Print topics) ENWW
How do I... (Image Diagnostics
Print topics)