Epson AcuLaser C2900N Service Manual page 86

Chapter 1 Troubleshooting
FIP-1.35 072-900: IOT Remain Option Feeder JAM
Step
Possible causative parts:
FEEDER ASSY OPT (PL12.1.3)
SENSOR PHOTO (PL12.4.13)
PWBA MCU (PL8.2.13)
HARNESS ASSY TRAY COMP (PL12.2.20)
Checking the Paper Path Sensor (SENSOR PHOTO) for
operation.
Does the number on the screen increase by one, when the
1
actuator (ACTUATOR REGI IN) is operated?
Checked by [Digital Input] - [OptionPathSensor] in [IOT
Diag] of diagnosis.
Checking the connectors for connection.
Check the connections between the PWBA FEED H and
2
Paper Path Sensor.
Are P/J420 and P/J4200 connected correctly?
Checking the HARNESS ASSY TRAY COMP for continuity.
Disconnect J420 from the PWBA FEED H.
3
Disconnect J4200 from the Paper Path Sensor.
Is each cable of J420 <=> J4200 continuous?
Checking the power to the SENSOR PHOTO.
Disconnect J420 from the PWBA FEED H.
4
Is the voltage across P420-6pin <=> ground on the PWBA
FEED H, about +3.3 VDC?
Epson AcuLaser C2900N
Check
1 - 73
Remedy
Yes
Replace the
PWBA MCU. Go to step 2.
(Refer to RRP8.9.)
Reconnect the
connector(s) P/
Go to step 3.
J420 and/or P/
J4200 correctly.
Replace the
Go to step 4. HARNESS ASSY
TRAY COMP.
Replace the
Replace the
FEEDER ASSY
PWBA MCU.
OPT. (Refer to
(Refer to RRP8.9.)
RRP10.1.)
Revision B
No
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