4. If the problem remains, try cleaning the printhead drop detector. The printer normally noties you when
this is necessary, but it may be worth trying even if the printer has not suggested it. See Clean the
printhead drop detector on page 151.
5. If the problem still remains, replace any persistently faulty printheads (see Handling ink cartridges and
printheads on page 101), or contact HP Support (see Contact HP Support on page 166).
If you still have a problem
If you still experience print-quality problems after applying the advice in this chapter, here are some further
things that you can do:
●
Try using a higher print-quality option. See Printing on page 50.
●
Check the driver you are using to print with. If it is a non-HP driver, consult the driver vendor about the
problem. You could also try using the correct HP driver, if feasible. The latest HP drivers can be
downloaded from http://www.hp.com/go/Z2600/drivers or http://www.hp.com/go/Z5600/drivers.
●
If you are using a non-HP RIP, its settings may be incorrect. See the documentation that came with the
RIP.
●
Check that your printer's rmware is up to date. See Update the rmware on page 113.
●
Check that you have the right settings in your software application.
148 Chapter 17 Troubleshooting print-quality issues ENWW
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