Epson Stylus Photo 785EPX Printer Basics Manual page 90

You see wrong or missing colors.
Your printout is grainy.
84
Make sure the Ink setting is set to
software is set for color printing.
The print head nozzles may need cleaning; see page 66 for
instructions.
Always use genuine EPSON ink cartridges and do not refill them.
Other products may clog the nozzles or damage the printer.
The ink cartridges may be old or low on ink. To replace an ink
cartridge, see page 68.
Try turning off PhotoEnhance. Also check if you're using a special
effect that alters image colors, like Sepia.
Try using Automatic mode. See page 37 (Windows) or page 55
(Macintosh) for instructions.
Try changing the
Gamma
page 41 for information about accessing Advanced settings.
Your printed colors can never exactly match your on-screen colors.
However, you can use a color management system to get as close as
possible.
Try using a higher quality paper.
Select a higher Print Quality setting. If you're printing without a
computer, select
High
your computer, see page 41 (Windows) or page 56 (Macintosh).
Run the Print Head Alignment utility. See page 72 for instructions.
You may need to increase the image resolution or print it in a smaller
size; see your software documentation.
for color images and your
Color
setting in the Advanced window; see
in the Quality menu. If you're printing from