Epson SQ-2550 User Manual page 204

Printing
Problem
The print is faint
or uneven.
Rots are missing in
the printed characters
graphics.
or
A B C D
The printing on
envelopes in either
faint or too dark.
The printout has a
blurred appearance.
ABCD
7-6 Troubleshooting
Solution
The print head nozzles may be clogged.
ON LINE
Press the
printer off line. Then press both the
LINE LINE FEED
and
print head cleaning cycle. You may need
to repeat this cycle more than once. If
printed results are still missing specific
dots after cleaning the print head several
times, the print head may be damaged.
The gap between the print head and the
platen may not be correct. Adjust the
gap between the platen and print head
using the paper thickness lever. Refer to
2-23.
You may not be using the correct type of
paper for your printer. Make sure the
surface of the paper is not too rough or
too smooth. Although most types of
business correspondence quality paper
works well with the SQ, you should
always test the paper you want to use
before buying it in large quantities.
You may not be printing on the correct
side of your paper. Test both sides of
your paper to determine which gives
you the best quality.
button to set the
buttons to start the
ON