HP Designjet 4000 Printer series - Manual (Page 182)

Horizontal bands across all the colored strips
If the printer has paper advance problems you will see horizontal bands across all the
colored strips.
Note Banding in the green strips is more difficult to see.
Corrective action
1.
Check that you are using appropriate print quality settings. See “How do I choose
print quality settings?” on page 130.
2. If you are using low-quality paper, try better-quality paper. The performance of
your printer can be guaranteed only if you use recommended papers. See “How
do I select supported paper types?” on page 94.
3. Perform paper advance calibration with the same paper type that you intend to
use for the final print. See “How do I perform paper advance
calibration?” on page 183.
4. If there is no improvement in print quality, contact your customer service
representative.
How do I interpret Image Diagnostics part 3?
If part 2 has revealed a printhead problem, the purpose of part 3 is to identify which
particular printhead is faulty. Each rectangle in this plot is labelled with the number of
the printhead that produced it.
Chapter 11
180
How
do
I use
the
Image
Diagnostics
Print?