Epson Stylus Pro 4000 Reference Manual page 128

Accessing the shared printer
To access the shared printer from another computer on a network,
follow these steps.
Note:
Your printer must be set up as a shared resource on the computer to
which it is directly connected before you can access it from another
computer.
1. Install the printer driver to the client computer from the
software CD-ROM.
2. Open the Printer folder from the Control Panel, right-click
your printer's icon, and open the Properties for your printer.
3. Click the Ports tab, and click Add Port.
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Printing with Windows