Samsung ML-7000 Series Service Manual page 38

5-2 HVPS Output Spec
DCU
CHARGER
TRANSFER "-"
TRANSFER "+"
BIAS
SUPPLY
OPC GND
Samsung Electronics
CODE NO. HVPS OUTPUT
"01"
"02" -1KV~ -1.4KV
"03"
"04"
"04"
_
Transfer Roller
P T L (LED-Array)
INSERT IMAGE CARTRIDGE
REMARK
- 1.55 KV 1. Turn off the printer
2. Open the rear cover and disassemble
+3.05 KV
3. Connect the DCU on engine board and
- 475 V
- 675 V
4. Open the top cover.
- 130 V
5. Remove image Cartridge.
6. Push the Cover Open Switch
7. Select the Diagnostic mode and
*Recommanded Test Equipment
Troubleshooting
the cover-shield.
close the rear cover.
measure HVPS output.
- DVM -High Voltage Probe
TRANSFER
CHARGER
BIAS
SUPPLY
5-3