Epson Stylus Pro 10600 Reference Manual page 190

2. On each computer from which you want to access the printer,
select Chooser from the Apple menu. Then click your printer's
icon and select the printer port you want to use from the Select
a printer port box on the right. You can only select from the
printers connected to your current AppleTalk zone.
3. If the following dialog box appears, enter the password for
the printer, then click OK.
4. Select the appropriate Background Printing option button to
turn background printing on or off.
5. Close the Chooser.
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