Epson WF-C8690 User Manual page 354

You see a screen like this:
7. Select Start.
The nozzle pattern prints.
8. Check the printed pattern to see if there are gaps in the lines.
Print head is clean
Print head needs cleaning
9. Do one of the following:
• If there are no gaps, select
• If there are gaps or the pattern is faint, select
.
and continue.
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