HP Designjet 4000 HP Designjet 4000 Printer Series - Quick Reference Guide - Page 120

How do I interpret Image Diagnostics part 3?

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How do I use the Image Diagnostics Print? Chapter 9 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 68. 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 32. 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 121. 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. 118

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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 68.
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 32.
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 121.
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 9
118
How do I use the Image
Diagnostics Print?