Epson STYLUS SCAN 2500 Manual page 27

Note:
Be sure to calibrate your screen and Stylus Scan to ensure that the
colors of reproduced images closely match the originals.
22. In the following window, move the slider to the right or left
until the two gray horizontal stripes match.
Note:
The gray stripes will not perfectly blend together; however, try to
make the two tones match as closely as possible.
23. Click OK to register the calibration setting.
24. Follow the on-screen instructions to complete the installation.
Note:
Do not change the printer name (EPSON Stylus Scan 2500),
otherwise your Stylus Scan will not work correctly.
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