System Administration Guide: Printing

Printer Port

When you initially install a printer, or later change its setup, you can specify the device, or the printer port, to which the printer is connected. You can use either Solaris Print Manager or the lpadmin -p printer-name -v device-name command to specify the device or printer port.

Most systems have two serial ports, plus a parallel port or USB ports. Unless you add ports, you cannot directly connect more than two serial printers and a parallel printer, or two USB printers, to one system.

You can select the following printer port types by using Solaris Print Manager. These options give you as much flexibility as using the lpadmin command.

Printer Port Type 

Corresponding Device Name Options 






/dev/printers/0 —> /dev/ecpp0



Specify any port name that the print server recognizes 


The LP print service initializes the printer port by using the settings from the standard printer interface program. For more information about printer interface programs, see Administering Print Filters. If you have a parallel printer or a serial printer for which the default settings do not work, see Adjusting Printer Port Characteristics.

x86 only –

If you use multiple ports on an x86 based system, only the first port is enabled by default. The second port, and any subsequent ports, are disabled by default. To use more than one port, you must manually edit the device driver port configuration file for each additional asy (serial) port or ecpp (parallel) port. The path names for the x86 port configuration files are the following: