4.
MALFUNCTIONS RELATED TO POWER SUPPLY
4-1.
Power is not Turned ON.
Controller/Mechanical Control Board (PWB-P)
Step
Check
1
Is the power cord plugged
into the power outlet?
2
Is the power cord connected
properly to the printer?
3
Is the Power Switch turned
ON?
4
Are the fuses (F101 and
F102) on the Power Unit
conducting?
Relevant Electric Parts
Power Unit (PU1)
Wiring Diagram
Result
(Location)
–
NO
–
NO
–
NO
–
NO
–
YES
T-23
Action
Plug the power cord into the
power outlet.
Plug the power cord into the
printer.
Turn ON the Power Switch.
Replace Power Unit (PU1).
Replace Controller/Mechan-
ical Control Board (PWB-P).