Epson Stylus 1520 User Manual page 209

Color dots are missing in printed characters or graphics.
The printed color image has gaps or faint areas.
Cause
The color print head nozzles
are clogged.
For DOS users:
The Network I/F mode is set
to off.
Black dots are missing in printed characters or graphics.
The printed black image is light or faint.
Cause
The black print head nozzles
are clogged.
Photographic images look grainy or rough.
Cause
The printing position is
misaligned.
The resolution of the original
image data or the resolution
setting for the image in your
image-editing software may
be too low.
What to do
Clean the color print head as
described in "Cleaning the Print
Heads" on page 10-36.
Set the Network I/F mode to on in the
default-setting mode as described in
"Changing the default settings" in
Chapter 8.
What to do
Clean the black print head as
described in "Cleaning the Print
Heads" on page 10-36.
What to do
Align the print heads with the Print
Head Alignment utility as described in
"Aligning the Print Heads" on page
10-40.
Increase the image resolution in your
image-editing software. Keep in mind
that higher resolution images take
longer to print.
Troubleshooting
10
10-31