Using The Duplex Unit - Epson EPL-N2750 Reference Manual

4. Open the connector cover and unplug the ends of the Duplex
Unit cable from their connectors.
5. Loosen the screws on the Duplex Unit, then remove the unit
by pulling the upper portion of the unit away from the printer
then lifting the unit up and off the printer.
6. Remove the paper transfer unit.
7. Replace the covers on the printer, and fasten the screws.
8. Plug the power cord into an electrical outlet.
9. Turn on the printer.

Using the Duplex Unit

The Duplex Unit enables you to print on both sides of plain paper
and supports the following paper sizes:
A3, A4, A5, B4, B5, Ledger, Legal, G-Legal, Letter, G-Letter,
Executive, H-Letter
To use the Duplex Unit, select the Duplex Print Unit check box in
the printer driver. This check box is accessed by clicking the
Settings button in the Optional Settings tab of the printer driver.
When using the Duplex Unit, paper feeds automatically from the
MP tray, the lower cassette, or any installed optional cassettes.
After both sides of the paper have been printed on, the Duplex
Unit outputs the paper onto the face-down tray or into an optional
multibin unit, if installed.
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Using Options