Epson STYLUS SCAN 2500 Manual page 34

When background printing is on, you can use your Macintosh
while it is preparing a document for printing. You must turn
on background printing to use the EPSON Monitor3 utility to
manage print jobs.
3. Close the Chooser.
Notice for USB users
If you connect several units of the same type, each unit is assigned
a separate USB port number, such as USB port 1, USB port 2, and
so on. Performing any of the following functions may cause the
USB port numbers for the individual units to change.
❏ Restarting your Macintosh
❏ Turning the Stylus Scan off and on
❏ Detaching and reconnecting the USB cable
Please check the assigned USB port number in the Chooser after
performing any of these functions.
Before turning on your USB hub (if necessary) and your Stylus
Scan, turn on the Macintosh and wait until startup is completed.
When unplugging the USB cord, wait a few seconds before
plugging it back in. Otherwise, the Macintosh may not recognize
your Stylus Scan and you may be unable to print correctly.
30