User's Manual

Ink Supplies Troubleshooting
3-3
HP DesignJets 500, 510 and 800 Series Printers Service Manual
Printheads
The Printheads are extremely durable and do not need to be replaced
every time an Ink Cartridge is replaced. They are independent of the
Ink Cartridges and will continue giving excellent image quality
results even if the Ink Cartridges are low on ink. In order to know
when to replace a Printhead, see page Page 3-7, When Should You
Replace the Printheads?
The Printheads are number coded HP No.11 for ALL colors.
If you notice a decline in print quality such as lines or dots missing
from text / graphics, go to page Page 6-4, Performing the
Troubleshooting Procedure.
Identifying the Components
The following illustration will help you identify the components of
the ink supplies.