Connecting The Parallel Interface - Oki ES 3640e MFP User Manual

The printer unit may not work if a USB-compatible device
is connected concurrently with other USB-compatible
machines.
When connecting multiple printer units of the same type,
they appear as *****, ***** (2), ***** (3), etc. These
numbers depend on the order of connecting or turning on
each printer unit.
> Ethernet – For network cable connection.
NOTE
Interface cables are not supplied with your printer unit.

Connecting the parallel interface

1. Turn off the printer unit and the computer.
2. Connect a parallel cable between the printer unit and
computer.
3. Turn on the printer unit and then the computer.
ES3640e MFP User's Guide
Getting started > 51