Epson Stylus Color II Reference Manual page 45

Check whether economy printing mode is on. To turn off this
mode, press the Economy/Condensed button until the
Economy light goes off.
Check whether your paper is moist or damp. Ink jet printers
are sensitive to moisture absorbed by paper. Do not store paper
in damp or humid places.
If you are printing color graphics at 360 or 720 dpi, make sure
MicroWeave is on and High Speed mode is off. Also check that
the Brightness and Contrast settings (PC driver) or Light/Dark
setting (Macintosh driver) are appropriate for the image.
Try using the printer driver's Automatic feature to let the
driver determine the appropriate image settings.
If you are using a DOS application and the black ink in the
image is blurred, select Plain paper (composite black) using the
Print Mode control panel button, as described in Chapter 2,
and start the print job again.
Your Windows video driver may not be compatible with the
printer. Use the standard Windows VGA driver or contact the
manufacturer of your video card for an updated driver. For
information on changing the video driver, see your Windows
documentation.
Clean one or both print heads as described in Chapter 3.
Replace one or both ink cartridges.
Vertical or horizontal lines do not align .
Calibrate your printer as described in your Setup and Software
Guide. If you are printing from DOS, see the instructions in this
chapter.
4-4
Troubleshooting