Read Panasonic DP-150 Service Manual online
2-10
Drive gear
2)Fusing
The heat roller and the pressure roller in the fuser unit melt toner onto the paper
using a combination of heat and pressure.
•
The upper heat roller has a Teflon coating on the aluminum surface, which allows
toner easily to be released from the surface. The ruggedness enhancement and
antistatic prevention processing are used in making the heat roller.
This will ensure longevity and prevent toner from sticking to the heat roller.
•
The heat roller uses a halogen lamp as a heat source.
•
The temperature sensor (thermistor) is on the heat roller to control the heat roller
temperature to the defined value.
•
The fuser thermostat is installed above the heat roller to prevent the roller
temperature from rising abnormally high.
•
The pressure roller under the fuser unit is made of silicone rubber and covered
with the fluorine plastic tube to enhance the roller ruggedness.
•
The fuser separation finger touches the heat roller. It separates paper from the
roller to avoid paper jam for fusing.
Separation
finger
finger
Heat roller
Fuser lamp
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