• Before installing or removing options, always disconnect the power cord plugs from the wall outlet.
• If the multi bypass tray is attached to the machine, turn the machine off and detach the multi bypass
tray.
• If the catches for the duplex unit attachment and detachment are installed correctly, they will click.
Make sure they click when attached.
• Press the catches for the duplex unit attachment and detachment to unlock the duplex unit when
detaching it. Do not press the catches when attaching.
Attaching the duplex unit
1. Press and hold down the [Power] key on the machine until it turns off, and then unplug
the power cord.
2. Disconnect the USB cable or Ethernet cable.
3. Without pressing the catches on its sides, push the duplex unit all the way in until it clicks
into place.
4. Connect the power cord, USB cable, or Ethernet cable.
Detaching the duplex unit
1. Press and hold down the [Power] key until it turns off, and then unplug the power cord.
Attaching and Detaching Units and Options
29