Sharp DX-B350P User Manual page 101

2. Pull out the power cord from the power outlet and then the printer.
3. Loosen the screws at the both ends of the bottom of the duplex module.
4. While supporting the duplex module with your hand, lift the lever at the top left hand side
of the duplex module to unlock it and then tilt the top part of the duplex module away
from the printer.
NOTE: You must support the duplex module with your hand as once it is unlocked. Otherwise, it may fall.
User's Guide
Duplex module
Accessories
8-13