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Chapter 1 Troubleshooting
FIP1.18 No Power
Step Check
Yes
No
Possible causes:
POWER CORD (PL12.1.23)
LVPS (PL12.1.5)
HVPS/MCU (PL12.1.19)
OPERATION PANEL (PL1.1.1)
HARNESS ASSY PANEL (PL1.1.10)
INTERLOCK S/W 24V (PL8.1.11)
INTERLOCK S/W 5V (PL8.1.12)
INTERLOCK S/W REAR (PL12.1.7)
FAN MAIN (PL1.1.14)
FAN SUB (PL8.1.5)
ROS ASSY (PL8.1.1)
FUSER ASSY (PL8.1.20)
GEAR ASSY HOUSING (PL11.1.3)
MAIN MOTOR (PL11.1.2)
CLUTCH REGI (PL5.1.23)
PWBA ESS (PL12.1.13)
PWBA FEEDER 550 (PL20.1.34)
PWBA DUPLEX (PL21.1.32)
CLUTCH ASSY PH (PL5.1.21, PL7.1.20, PL20.2.21)
CLUTCH PR-REGI (PL20.2.22)
1
Checking POWER CORD for continuity Is each cable of
POWER CORD continuous?
Go to step 2.
Replace POWER
CORD.
2
Checking AC power source
Does the voltage of AC power source meet commercial
voltage?
Go to step 3.
Ask the customer
to arrange the AC
power source.
3
Checking the fuse Remove SHIELD PLATE LVPS
(PL12.1.3). (RRP12.1)
Is the fuse on LVPS open?
Replace LVPS.
(RRP12.3)
Go to step 4.
4
Checking Option 550 Paper Feeder (PL20)
Do two fans rotate, when the power is turned ON?
Remove Option 550 Paper Feeder to check.
Go to FIP4.7,8
PWBA FEEDER
550,
FIP1.39 CLUTCH
ASSY PH, and
FIP4.12 CLUTCH
PR-REGI.
Go to step 5.
5
Checking Option Duplex (PL21)
Do two fans rotate, when the power is turned ON?
Remove Option Duplex to check.
Go to FIP2.8
PWBA DUPLEX,
and FIP2.9
MOTOR
DUPLEX.
Go to step 6.
6
Checking 24 V power line
Remove SHIELD PLATE HVPS (PL12.1.18).
Check if P/J10 is connected to HVPS/MCU.
Remove EP CARTRIDGE.
Check each of the following for 24VDC.
P/J10-1(+) and P/J10-4(-)
P/J10-2(+) and P/J10-5(-)
P/J10-3(+) and P/J10-6(-)
P/J10-8(+) and P/J10-7(-)
Go to step 7.
Go to FIP1.24
LVPS.
