d-Color MF4003/MF3303
L TROUBLESHOOTING > 13. TROUBLES THAT DO NOT DISPLAY THE TROUBLE
CODE
L-120
Step
Check item
Location of electrical
component
Result
Action
2
Is DC24 V being output to CN4-3 on DCPS?
9-S
NO
Check the wiring from the wall DCPS to
DF.
3
Are the fuses on DCPS conducting?
-
YES
NO
Malfunction in DF.
13.4 Power is not supplied to option
13.4.1 PF-P20/PF-P21
Contents
Trouble type
Power is not supplied to PF-P20/PF-P21.
Rank
-
Trouble detection condition -
Trouble isolation
-
Relevant electrical parts
• DC power supply (DCPS)
• PF-P20/PF-P21
Procedure
Step
Check item
Location of electrical
component
Result
Action
1
Is DC24 V being output to CN1-3, 4 on
PCCB?
18-S
NO
Malfunction in paper feed unit.
2
Is DC24 V being output to CN4-5 on DCPS?
9-S
NO
Check the wiring from the wall DCPS to
BASEB to PCCB.
3
Are the fuses on DCPS conducting?
-
YES
NO
Malfunction in paper feed unit.
Service Manual
Y119930-3
Summary of Contents for d-Color MF 4003
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