Removing the Duplex Unit Use the following procedure to remove the duplex unit: 1.   Switch the printer power off. 2.   Unplug the printer from the wall outlet. 3.   Remove the power cord from the back of the printer. 4.   Press the release button on the vertical section to open the vertical section. 5.   Unfasten the two locking clips between the printer and the duplex unit at the back of the printer. Pinch the locking clips to remove them. Chapter 7.   Installing Printer Options 121