Epson 2500 - Manual (Page 134)

128 Maintenance
7. If the nozzle check pattern is complete, click Finish .
If the pattern is missing dots, click Clean to run another
cleaning cycle.
8. If you don’t see any improvement after cleaning two or
three times, check the print quality solutions in “Solving
Print Quality Problems” on page 145.
You can also turn off the printer and wait overnight—this
allows any dried ink to soften—then clean the print head
again.
Examining the Nozzle Check Pattern
Examine the nozzle check pattern you print. It should look
something like this (the upper pattern is black; the lower section
is cyan, magenta, and yellow):
Each staggered horizontal and straight vertical line should be
complete, with no gaps in the dot pattern. If your printout
looks okay, you’re done. If any dots are missing, as shown
below, clean the print head again.
Missing dots