Dell 1135N Service Manual page 113

Alignment and Troubleshooting
11) Ghost (3) : Fuser
Description : Ghost occurs at 75.4 mm or 77.5mm intervals.
Disassemble the fuser Unit.
Clean the Fuser Rollers,
The temperature of the fuser is
and Thermistor.
being maintained too high.
(Caution: can be deformed)
4-40
Service Manual