Cleaning The Print Head - Epson Stylus Pro 4000 Reference Manual

Cleaning the print head

If you find that the printed data is unexpectedly faint or dots in
the printed image are missing, you may be able to solve these
problems by cleaning the print head, which ensures that the
nozzles are delivering ink properly, by using the Head Cleaning
utility.
To use the Head Cleaning utility, follow these steps.
Note:
❏ Do not start Head Cleaning utility while printing is in progress;
otherwise, your printout may be marred.
❏ Use the Nozzle Check utility first to confirm that the print head
needs to be cleaned to save ink because this process consumes some
ink.
❏ When one ink out light is flashing or on, you cannot clean the print
head. Replace the appropriate ink cartridge first referring
"Replacing Ink Cartridges" on page 264.
1. Make sure that the printer is turned on and all ink lights are
off.
2. Click Head Cleaning.
3. Follow the on-screen instructions.
4. Click Print Nozzle Check Pattern in the Head Cleaning
dialog box to confirm that the head is cleaned and to reset the
cleaning cycle.
If you still find missing dots after cleaning, try these solutions.
❏ Select PWR CLEANING from the control panel on the printer. See
"PWR CLEANING" on page 32.
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Printing with Mac OS X