Oki C810 - Installing Upgrades

Installing upgrades > 75
I NSTALLING UPGRADES
This section explains how to install optional equipment into your printer. This includes:
> duplex (two-sided printing) unit;
page 76:
> additional RAM memory (C830 only)
page 77
> hard disk drive (C830 only).
page 80
> additional paper tray(s)
page 82