Partial Blank Image (Not Periodic) - Samsung ML-4500/XEV Service Manual

Partial Blank Image (not Periodic)

the guaranty life of dot
Is toner cartridge
installed correctly?
- Clean the contact point of transfer roller
- Check the output of high voltage terminal
and adjust or replace if required
Samsung Electronics
Is it not over
counter?
YES
YES
Transfer roller
works properly?
YES
NO
NO
NO
Replace the toner cartridge
Install the toner cartridge correctly
Clean the TR holder, the TR gear,
OPC roller gear and the transfer roller
Troubleshooting
4-17