In the Mac OS, to add a printer to your computer, you need to create a print server port.
Before you create the print server port in the Mac OS, you need to configure your print server for the network. For more information about how to configure your print server, refer to the following FAQ: https://www.startech.com/faq/print-servers-pm1115u2-alternate-setup.
To create a print server port, complete the following: