Oki OKIFAX 5750 Service Manual page 490

4.1 Precautions for Parts Replacement
(1) Before starting to replace parts, remove the AC cord.
(a) Remove the AC cord in the following sequence:
1. Turn off ("o") the power switch of the machine.
2. Disconnect the AC inlet plug of the AC cord from the AC receptacle.
3. Disconnect the line cable from the machine.
(b) Reconnect the machine in the following procedure:
1. Connect the AC cord and line cable to the machine.
2. Connect the AC inlet plug to the AC receptacle.
3. Turn on ("l") the power switch of the machine.
Service Guide OKIFAX 5750/5950
Chapter 4 Disassembly
Page: 162