HP Designjet 4000 Series

Corrective action
If part 3 shows a problem with one printhead, but part 2 shows no problem, there is no immediate need
to take any corrective action, because the printer is able to compensate for the problem and maintain
print quality. However, if part 2 also shows a problem, continue as follows:
1. Clean the printheads. See
Recover (clean) the printheads.
2. If there is no improvement in print quality, replace the printhead that shows the problem. See
Remove a printhead and Insert a printhead.
If I still have a problem
If the entire Image Diagnostics Print contains no defects and you still experience print quality problems,
here are some things to check:
●
Try using a higher print quality option. See
Choose print quality settings and Change the print quality.
●
Check the driver you are using to print with. If it is a non-HP driver, go to
http://www.hp.com/go/
designjet/ and download the correct HP driver.
●
If you are using a non-HP RIP, its settings may be incorrect. Refer to the documentation that came
with the RIP.
●
Check that your printer's firmware is up to date. See Using your printer on CD.
● Check that you have the right settings in your software application.
● If you are seeing a problem only at the top of the page, see
A defect near the start of a print.
ENWW If I still have a problem 97
How do I... (Image Diagnostics
Print topics)