17. Power supply errors
17.3 Fusing heaters do not operate
Safety switch (SW2)
Fusing unit
Step
Check Item
Is the power source voltage being applied
to CN1DCPU1 on DCPU?
1
The top cover and front cover should in
closed position at this time.
Is the power source voltage being applied
2
to CN2 on DCPU?
154
Relevant electrical parts
DC power supply (DCPU)
Location (Electri-
cal component)
J-6
2500W: J-6
2530 DL: J-5
2550/2550DN: J-5
Field Service Ver. 1.0 Aug. 2006
Result
Action
Check wiring from
power outlet to PG1 to
NO
CN1DCPU1.
YES
Change the fusing unit.
Change DCPU.
NO