EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING FIP according to the printer message 199

FIP-46

Panel Message
Service Req E526
Possible parts that caused the error
Troubleshooting

SENSOR ASSY ADC HARNESS ASSY ADC

PWBA MCU LV/HVPS
Step Check Yes No
1Check of dirt and foreign bodies on surface
of SENSOR ASSY ADC
Are there any dirt or foreign bodies on the
SENSOR ASSY ADC surface?
Clean to remove
any dirt or
foreign bodies,
and go to step
[2].
Go to Step [2].
2Check of SENSOR ASSY ADC attachment
Is SENSOR ASSY ADC attached correctly?
Go to Step [4]. Re-attach, and
go to step [3].
3Does the error recur when the power is
turned ON? Go to Step [4]. End of
procedure
45 VDC and 24 VDC power supply check to
SENSOR ASSY ADC
The voltage of P422-2 ↔ P422-4 on PWBA
MCU is 24 VDC?
And the voltage of P422-8 ↔ P422-4 is 5
VDC?
Go to Step [5]. Go to Step [7].
5Continuity check of HARNESS ASSY ADC
Disconnect P/J422 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J422-8 ↔ J431-1
J422-4 ↔ J431-5
J422-2 ↔ J431-7
Go to Step [6]. Replace
HARNESS
ASSY ADC.
6Check after replacement of SENSOR ASSY
ADC
Replace SENSOR ASSY ADC. (p.353)
Does the error recur when the power is turned
ON?
Go to Step [7]. End of
procedure
7Power supply check to PWBA MCU
Are each of the power voltages being supplied
to the following terminals on PWBA MCU
from LV/HVPS?
P410-1 ↔ P410-2: 3. 3 VDC
P410-3 ↔ P410-4: 5 VDC
P410-5/6 ↔ P410-7/8: 24 VDC
Replace PWBA
MCU. (p.404) Go to Step [8].
8
Continuity check of HARNESS ASSY MAIN
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-1 ↔ J502-1
J410-2 ↔ J502-2
J410-3 ↔ J502-3
J410-4 ↔ J502-4
J410-5 ↔ J502-5
J410-6 ↔ J502-6
J410-7 ↔ J502-7
J410-8 ↔ J502-8
Replace LV/
HVPS. (p.407) Repair broken
or shorted part.
Step Check Yes No