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10. TROUBLES THAT DO NOT DISPLAY THE TROUBLE CODE
10.1 Machine is not energized at all (DCPS operation check)
Contents
Trouble type
Machine is not energized at all
Rank
-
Trouble detection condition -
Trouble isolation
-
Relevant electrical parts
Procedure
Step
1
Is a power voltage supplied across CN1-1 and
2 on DCPS?
2
Are the fuses on DCPS conducting?
3
Is DC5 V being output to CN5-1, 2 on DCPS?
4
Is DC24 V being output to CN4-3 on DCPS?
5
The LED on BASEB is blinking?
6
Is DC24 V being output to CN4-6 on DCPS?
10.2 Fusing heaters do not operate
Contents
Trouble type
Fusing heaters do not operate
Rank
-
Trouble detection condition -
Trouble isolation
-
Relevant electrical parts
Procedure
Step
1
Is a power voltage supplied across CN1-1 and
2 on DCPS?
During this time, the right door should be
closed.
2
Is the power source voltage applied across
DCPS CN6?
10.3 Power is not supplied to option
10.3.1 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
Procedure
Step
1
Is DC24 V being output to CN1-3, 4 on
PCCB?
L TROUBLESHOOTING > 10. TROUBLES THAT DO NOT DISPLAY THE TROUBLE
• Base board (BASEB)
• DC power supply (DCPS)
Check item
• Right door switch (SW5)
• DC power supply (DCPS)
• Base board (BASEB)
• Fusing unit
Check item
• DC power supply (DCPS)
• PF-P20/PF-P21
Check item
Location of electrical
Result
component
7-V
NO
-
NO
7-S
NO
9-S
NO
-
NO
9-S
NO
Location of electrical
Result
component
7-V
NO
8-T
YES
NO
Location of electrical
Result
component
18-S
NO
L-80
Action
Check the wiring from power outlet to
DCPS CN1.
Replace DCPS.
Replace DCPS.
• Check the wiring from the wall
BASEB to DCPS.
•
Replace DCPS.
•
Replace BASEB.
Replace BASEB.
Replace DCPS.
Action
Check the wiring from power outlet to
DCPS to SW5.
Replace the fusing unit.
• Check the wiring from DCPS CN6 to
BASEB CN1E.
•
Replace DCPS.
•
Replace BASEB.
Action
Malfunction in paper feed unit.
CODE
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