IBM ThinkPad 310ED - Attaching a Printer

Attaching a Printer
Chapter 6. Installing and Removing Options 6-13
Attaching a Printer
Any parallel printer with the standard Centronics interface can be
attached to the 25-pin, parallel connector at the rear of the
computer.
1 Turn off the computer and attach the printer as shown.
2 Turn on the computer and the printer.