8-6
Chapter 8. Troubleshooting
Samsung Electronics
Traninung Manual
Cause
Sequence of Treatment
Paper Path is contaminated.
ITB Unit Belt is contaminated.
Pressure Roller of Fuser Unit is contaminated.
Open covers fully and clean the Paper Path.
Replace the ITB Unit.
Clean or replace the Fuser Unit.
- Toner Smudges on the reverse side.
Cause
Sequence of Treatment
If the background is contaminated with only
one color.
If the background is generally contaminated
with all color.
If Printing Density is dark(one color only).
If Printing Density is dark(all colors).
Replace the appropriate Toner Cartridge
Ensure TDC process is enabled.
If problem persists replace the OPC Drum
Replace the appropriate Toner Cartridge
Ensure TDC process is enabled.
If problem persists replace the OPC Drum
- Foggy back ground
Cause
Sequence of Treatment
Poor toner transfer to OPC-one color only
Poor toner transfer to OPC- al colors
Poor toner transfer to ITB Unit
ITB Bias voltage incorrect.
Check and clean Toner contacts
Replace the appropriate Toner Cartridge
Check and clean Toner, ITB and OPC unit
contacts
Ensure TDC process is enabled.
If problem persists replace the OPC Drum
Check and clean ITB Unit contacts.
Re-install or replace the ITB Unit.
Check and clean ITB Unit contact.
Replace the HVPS.
- Low image density
