HP Designjet 4500 Printer series - Manual (Page 224)

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:
or as a more gradual wave effect:
210 Chapter 14 How do I... (Image Diagnostics Print topics) ENWW
How do I... (Image
Diagnostics Print topics)