The LIST.PRINTERS command shows a list of printers known to the operating system. This is currently supported only on Windows systems.
The LIST.PRINTERS command displays an alphabetically sorted list of printer names known to the operating system. If a printer is known but cannot be accessed the operating system error code is shown after the name.
The default printer and network printers are marked as in the example below.
Fax - HP Officejet 7500 E910 (Network)