Cleaning The Print Head - Epson Stylus Pro 4400 Reference Manual

Cleaning the print head

If you find that the printed data is unexpectedly faint or dots in
the printed data are missing, you may be able to solve these
problems by using the Head Cleaning utility to clean the print
head, which ensures that the nozzles are delivering ink properly.
To use the Head Cleaning utility, follow the steps below.
Note:
❏ Do not start the Head Cleaning utility while printing is in progress;
otherwise, your printout may be marred.
❏ To save ink, use the Nozzle Check utility first to confirm that the
print head needs to be cleaned. This is because the cleaning process
consumes some ink.
❏ When one check ink out light is flashing or on, you cannot clean the
print head. Replace the appropriate ink cartridge first. See
"Replacing Ink Cartridges" on page 295.
1. Make sure the printer is turned on and all ink check 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 clean and to reset the
cleaning cycle.
If you still find missing dots after cleaning, try the following
solutions.
❏ Select PWR CLEANING from the control panel on the printer. See
"PWR CLEANING" on page 245.
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Printing with Windows