Epson Macintosh - Manual (Page 58)

If you scanned an image at a high resolution (800 dpi) and at
the maximum allowable width using the Color Photo Image
Type setting, restart your Macintosh and reduce the resolution
and the width of the scanned image. Then try scanning again.
If your application contains a scan manager feature, you may
have closed it before closing the EPSON TWAIN screen. Scan
your image again, but close the
TWAIN screen before closing
your application’s scan manager.
If you selected 3-pass scanning in EPSON TWAIN, you may
need to free some space on your hard disk to scan.
After scanning with an image editing application, the scanned
image disappears.
Make sure you close the TWAIN screen before switching to
your application software.
The rows in the screen calibration window do not match closely
enough.
Try adjusting your monitor’s brightness and contrast settings.
The TWAIN screen changed its color settings after a preview scan.
Increase the number of colors or decrease the resolution your
monitor displays using the Monitor Control Panel.
The colors in the Color Filter wheel do not reflect the gradated
“rainbow” spectrum of colors.
Increase the number of colors or decrease the resolution your
monitor displays using the Monitor Control Panel.
6-6 Troubleshooting