Samsung CLX-8540ND Service Manual page 346

● Code : I-1
● Symptom :
-. Full Solid Black / Color Image
● Possible Cause:
1. Imaging unit charging defect
2. LSU defect, Engine board defect, Video board defect
● Troubleshooting method :
[case1] Imaging unit charging defect
(1) Remove the imaging unit and re-install it.
(2) If the problem persists, check if the connector on HVPS-L is connected properly. Reconnect it.
HVPS2
(Engine board)
HVPS1
(Engine board)
Not used
(3) If the problem persists, replace the imaging unit.
(4) If the problem persists, replace the HVPS-L.
[case2]
LSU defect, Engine board defect, Video board defect
(1) Replace the engine board.
(2) If the problem persists, replace the video board.
(3) If the problem persists, replace the LSU.
Troubleshooting
● Full Solid Image
T2 HV
MHV_Y/M
WASTE_FULL
FAN_LSU
_SENSOR
<HVPS-L PBA>
4-184
T1_Y/M/C/K
MHV_C/K