HP Designjet L25500 Printer Series - Maintenance and troubleshooting guide (second edition)

Try selecting a higher print-quality option in your RIP software.
Check that your printer firmware is up to date. See
Firmware update on page 9.
Check that you have the correct settings in your software program.
Call your service representative. See
When you need help on page 51.
ENWW Use the printhead status plot 23