Epson AcuLaser C2900N Service Manual page 166

Chapter 1 Troubleshooting
Step
Checking the connectors for connection.
Check the connections between the PWBA MCU and LED
ASSY ERASE.
Are P/J141 and P/J14 connected correctly?
6
Checking the HARNESS ASSY LVPS MAIN MG SFP for
continuity.
7 Disconnect J14 from the PWBA MCU.
Disconnect J141 from the LED ASSY ERASE.
Is each cable of J14 <=> J141 continuous?
Checking the DRUM CARTRIDGE for connection Remove
the DRUM CARTRIDGE.
Are five HV terminals on the DRUM CARTRIDGE, and five
springs on the frame (PL4.1.10 and PL4.1.15 to 18) dirty
and/or deformed?
8
Checking after resetting the DRUM CARTRIDGE.
9 Reseat the DRUM CARTRIDGE.
Is the image printed correctly?
Epson AcuLaser C2900N
Check
1 - 153
Remedy
Yes
Reconnect the
connector(s) P/
Go to step 7. J141 and/or P/J14
surely, then go to
step 7.
Replace the LED
Replace the
ASSY ERASE
HARNESS ASSY
(Refer to
LVPS MAIN MG
RRP4.4.), then go
SFP.
to step 8.
Clean and/or
replace the DRUM
Go to step 9.
CARTRIDGE or
SPRING(s).
End of work. Go to step 10.
Revision B
No
Confidential