Toner Smudges On The Reverse Side; Foggy Back Ground; Low Image Density - Samsung CLP-600 Series Service Manual

Troubleshooting

- Toner Smudges on the reverse side.

- Foggy back ground

- Low image density

Service Manual
7-6
Cause
Paper Path is contaminated.
PTB Unit Belt is contaminated.
Pressure Roller of Fuser Unit is contaminated.
Cause
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).
Cause
Poor toner transfer to OPC-one color only
Poor toner transfer to OPC- al colors
Poor toner transfer to PTB Unit
PTB Bias voltage incorrect.
Sequence of Treatment
Open covers fully and clean the Paper Path.
Clean or replace the PTB Unit.
Clean or replace the Fuser Unit.
Sequence of Treatment
Replace the appropriate Toner Cartridge
Ensure TDC process is enabled.
If problem persists replace the Toner Cartridge.
Replace the appropriate Toner Cartridge
Ensure TDC process is enabled.
If problem persists replace the Toner Cartridge.
Sequence of Treatment
Check and clean Toner contacts
Replace the appropriate Toner Cartridge
Check and clean Toner, PTB and OPC unit
contacts
Ensure TDC process is enabled.
If problem persists replace the OPC Drum
Check and clean PTB Unit contacts.
Re-install or replace the PTB Unit.
Check and clean PTB Unit contact.
Replace the HVPS.
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