Oki C9300 User Manual page 213

Removing the duplex unit
The duplex unit may be removed from the printer as follows.
1. Switch off the printer and disconnect the power cable.
2. Open the small front cover and pull the colored handle (1) to slide
the duplex unit/paper tray out of the printer as a complete unit.
3. Slightly lift up the duplex unit/paper tray together and remove
completely from the printer.
4. Pull the post (2) forward and pull the two stoppers (3) forward to
release the duplex unit from the paper tray, then remove the
duplex unit from the paper tray.
5. Reattach the original front cover, then reinstall the paper tray.
6. Connect the power cable and switch the printer on.
7. Change the DUPLEX setting in the menu to OFF: to do this,
follow the steps in the NOTE on page 210 in reverse.
8. Press the ONLINE button to turn the printer back to online status.
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