7.When the scanner software installation is complete, you see this screen:
Click Restart. You see the Screen Calibration window. (Your Macintosh will automatically restart after you calibrate your screen.)
8.For the best results from an EPSON ink jet printer, leave the default setting of 1.8.
If you are using a different printer or your printouts don’t match what you see on screen, you can change the setting. Move the slider to the right or left until the shades of the horizontal gray stripes appear similar. View the screen from a short distance. The gray stripes will not perfectly blend together; however, try to make the two tones match as closely as possible.
9.Click OK to register the calibration setting. Your Macintosh automatically restarts.
The EPSON Screen Calibration utility will not appear if it is already on your system from a previous installation of the EPSON Perfection 640U or other EPSON scanner.
You will not need to change the screen calibration again as long as you continue to use the same monitor. If you need to recalibrate your screen at a later time, select Screen Calibration in the EPSON Scanner folder.
10.Now you can install the rest of your scanner software as described in the next section.
Setting Up Your Scanner 19