Epson Macintosh - Manual (Page 19)

You see the following screen:
4. In the Filename field, type the filename of the calibration
file you want to create,
such
as COLOR1 PRINTER.
Tip:
If you are creating more than one calibration profile (for
instance, if you have more than one color printer), make
sure you assign a unique filename to each calibration
profile so you can distinguish between them.
5. Click Continue. You see the EPSON TWAIN advanced
screen. (If you see the easy screen, click Advanced.)
Calibrating Your System 2-7