HP All in One Printer 4000 Manual do Utilizador descarregar pdf (Página 226)

Here are three examples of a black rectangle in close-up, showing the fine lines of which it is made:

In the first two examples above, there are so many missing lines that the printhead may be faulty. In

the third case there are only a few missing lines, which are acceptable, because the printer can

compensate for such minor problems.

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.

212 Chapter 14 How do I... (Image Diagnostics Print topics) ENWW

How do I... (Image

Diagnostics Print topics)

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HP All in One Printer 4000 Manual do Utilizador Página 226