Oki ES3640MFP Service & Troubleshooting Manual page 62

Incomplete Fusing or Cold Offset
The Fuser temperature is set too low for the media loaded in the tray causing improper
fusing resulting in the toner rubbing off easily.
Initial Actions:
Perform Initial Actions from
Verify the correct media type is set at the printer's Control Panel.
Areas of the Printer that Apply to Incomplete Fusing or Cold Offset
1. Remove the Fuser covers and inspect for debris between the rollers. Is there
dirt or debris wrapped around or on the Fuser rollers?
2. Set the media type to the next heaviest setting than the type loaded. Did
this correct the problem?
3. Print a test print and monitor the Fuser temperature with Service Diagnostics.
Is the temperature within its optimal range?
Print Quality Troubleshooting Practices
Fuser
Media Thickness Sensor
Troubleshooting Steps Resolution
Yes – Replace the Fuser.
No - Go to Step 2.
Yes – Advise customer on
appropriate media type
selection.
No - Go to Step 3.
Yes – Replace the Fuser.
No - Replace in this order:
Engine Control Board / LVPS