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HOW TO: Add CUPS Serial Printers in Linux

Here are the steps taken for configuring a printer using the CUPS web interface. Prior to configuring the printer in CUPS, you may need to change the ownership for the tty device. From the root prompt:

# chown lp:lp /dev/ttyxyz

Where xyz represents the actual tty device.

Go to the CUPS web interface by pointing your web browser on the Linux host to http://localhost:631

Select Add Printer

Fill in the name, location and description.

Next, select the AppSocket/HP jetDirect option:

Enter serial:/dev/ttyxyz to point to the proper Digi serial port:

Where xyz represents the actual tty device. The above example shows ttyj01 which is port 2 on a 16 port unit.

Fill in the baud rate, stop bit, parity and flow control settings which match those for the attached printer:

Select the proper printer model from the drop down list:

The printer will now be configured and ready to use.

To send a print job from the root promt:

# lp -d (printer_name) /dev/inittab

To check the status of the printer(s):

# lpstat -t