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T- 1 7
4. MALFUNCTIONS RELATED TO POWER SUPPLY
4-1. Power is not Turned ON.
Relevant Electrical Parts
Mechanical Control Board (PWB-A)
Controller/Image Control Board (PWB-I)
Power Unit 1 (PU1)
Power Unit 2 (PU2)
Step Check
Wiring Diagram
(Location)
Result Action
1 Is the power cord plugged
into the power outlet?
–NO
Plug the power cord into the
power outlet.
2 Is the power cord connected
properly to the printer?
–NO
Plug the power cord into the
printer.
3 Is the Power Switch turned
ON?
–NO
Turn ON the Power Switch.
4 Are the fuses (F101 and
F102) on the Power Unit
conducting?
–NO
Replace the Power Unit
(PU1).
– YES
Replace the Controller/
Image Control Board (PWB-
I).