Color Definition: Yellow-green: 
Fig. Yellowgreen-4-1.1
As shown below, the issue may vary in location and appearance. Click a sample image below to see a larger version of it.
Fig. Yellowgreen-4-1.1
Fig. Yellowgreen-4-1.2
Fig. Yellowgreen-4-1.3
Description
Thin vertical lines in the color of yellow repeating every 1.9 inches (47 mm) in the whole page.
Most likely causes
Troubleshooting and suggestions
- Replace the yellow image drum
Show me how. - Print and examine another set of PQ troubleshooting pages. Show me how.
- If the issue is not resolved, Contact HP.
Recommended parts
Order a yellow image drum.
Note: It is not necessary to replace the other image drums.
Please let HP know if this helped you to resolve your issue, and help HP improve service.