Epson AcuLaser C2900N Service Manual page 122

Chapter 1 Troubleshooting
FIP-1.55 092-410 / 092-910: IOT CTD (ADC) Sensor Dustiness / CTD (ADC) Sensor
Dustiness Warning
Step
Possible causative parts:
HARN ASSY L SIDE (PL3.1.18)
TRANSFER ASSY (PL6.1.7)
PWBA MCU (PL8.2.13)
Turn OFF the power, and gently wipe the CTD (ADC)
Sensor window with a clean dry cloth or cotton swab.
After wiping the window, close the COVER ASSY FRONT
MG.
Does the error still occur when the power is turned OFF and
ON?
1
Checking the connectors for connection.
Check the connectors between the PWBA MCU and CTD
(ADC) Sensor.
Are P/J28 and P/J281connected correctly?
2
Does the error still occur when the power is turned OFF and
3
ON?
Checking the HARN ASSY L SIDE for continuity.
Disconnect J28 from the PWBA MCU.
4
Disconnect J281 from the TRANSFER ASSY.
Is each cable of J28 <=> J281 continuous?
Checking the surface of the belt on the TRANSFER ASSY.
5
Is the belt dirty?
Does the error still occur when the power is turned OFF and
6
ON?
Checking after replacing the TRANSFER ASSY.
Replace the TRANSFER ASSY (Refer to RRP6.3.)
7
Does the error still occur when the power is turned OFF and
ON?
Epson AcuLaser C2900N
Check
ADC Sensor window
Go to step 2.
MiS01001SA
Go to step 4.
Go to step 4.
Go to step 5.
Clean the belt with
a clean dry cloth,
then go to step 6.
Go to step 7.
Replace the
PWBA MCU.
(Refer to RRP8.9.)
1 - 109
Revision B
Remedy
Yes No
End of work.
Reconnect the
connector(s) P/
J28 and/or P/J281
correctly, then go
to step 3.
End of work.
Replace the
HARN ASSY L
SIDE.
Go to step 7.
End of work.
End of work.
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