Epson EXPRESSION 1640XL User Manual page 111

For Macintosh users
Select EPSON Scanner Monitor Setup from the Apple menu.
Turning off Scanner Monitor
5
If you want to turn off Scanner Monitor, clear the Enable
Monitoring check box. However, this will disable the
scanner's Start Button feature.
To activate Scanner Monitor again, select the Enable
Monitoring check box.
5-11
Using the Start Button