Epson 777 ユーザーズマニュアル

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Your printout is faint or has gaps.
The print head nozzles may need 
cleaning; see page 19 for instructions.
The ink cartridges may be old or low 
on ink. To replace an ink cartridge, 
see page 21. 
Make sure the 
Media Type
 setting 
matches the paper you loaded. See 
page 17 for guidelines.
Make sure your paper isn’t damaged, 
old, dirty, or loaded face down. If it 
is, reload a new stack of paper with 
the printable side up; it is usually 
whiter or shinier than the other side.
Your printout is grainy.
Try using a higher quality paper.
Set the Quality/Speed slider to 
Quality
page 11 (Macintosh) for details.
Run the Print Head Alignment 
utility. See page 24 for instructions.
You may need to increase the image 
resolution or print it in a smaller size; 
see your software documentation.
You see wrong or missing colors.
Make sure the Ink setting is set to 
Color
 for color images and your 
application is set for color printing.
The print head nozzles may need 
cleaning; see page 19 for instructions.
The ink cartridges may be old or low 
on ink. To replace an ink cartridge, 
see page 21. 
If you’re printing a high-resolution 
image, turn off PhotoEnhance, as 
described on page 13. Also check if 
you’re using a special effect that alters 
image colors, such as Sepia.
Try using Automatic mode. See 
page 7 (Windows) or page 11 
(Macintosh) for instructions.
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. For information, see your 
electronic Reference Guide (as 
described on page 2).