Beforehand
D0CA/D0C9/D0C8/D0CB 4-4 SM
4.2 BEFOREHAND
• Before installing options, please do the following:
If there is a fax unit in the machine, print out all messages stored in the memory, the
lists of user-programmed items, and the system parameter list.
If there are printer jobs in the machine, print out all jobs in the printer buffer.
Turn OFF the main switch and disconnect the power cord, the telephone line, and the
network cable.
• Always touch a grounded surface to discharge static electricity from your hands before
you handle SD cards, printed circuit boards, or memory boards.
• Before you start to remove components from the machine, do the following:
• Turn OFF the main power switch (SW1).
• Make sure that the shutdown process has finished and that the LED on the operation
panel has turned OF F.
• Unplug the power cord.
• After the main power switch (SW1) of the machine has been turned OF F, the power
relay board (PCB12) (SDB) keeps the power supply to the controller until the HDD unit
has been shut down safely.
• Press the main power switch (SW1) again to discharge any residual voltage.
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