Epson AcuLaser C2900N Service Manual page 118

Chapter 1 Troubleshooting
FIP-1.53 091-972: IOT PHD Detached
Step
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21)
PWBA MCU (PL8.2.13)
HARN ASSY PHD XPRO (PL9.1.11)
Checking after resetting the DRUM CARTRIDGE.
Reseat the DRUM CARTRIDGE.
1
Does the error still occur when the power is turned OFF and
ON?
Checking the connectors for connection.
Check the connectors between the PWBA MCU and DRUM
CARTRIDGE.
Are P/J42 and P/J422 connected correctly?
2
Does the error still occur when the power is turned OFF and
3
ON?
Checking the HARN ASSY PHD XPRO for continuity.
Disconnect P422 from the DRUM CARTRIDGE.
4
Disconnect J42 from the PWBA MCU.
Is each cable of P422 <=> J42 continuous?
Checking after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
CAUTION: Be sure to pull eight sealing tapes out from a
5
new DRUM CARTRIDGE before installation.
Does the error still occur when the power is turned OFF and
ON?
Epson AcuLaser C2900N
Check
1 - 105
Remedy
Yes
Go to step 2. End of work.
Reconnect the
connector(s) P/
Go to step 4. J42 and/or P/J422
surly, then go to
step 3.
Go to step 4. End of work.
Replace the
Go to step 5. HARN ASSY PHD
XPRO.
Replace the
PWBA MCU. End of work.
(Refer to RRP8.9.)
Revision B
No
Confidential