General Information
Xerox Internal Use Only
Phaser 3320 and WorkCentre 3315/3325
Service Manual
1-25
Fuser
The Fuser consists of a halogen lamp, heat roller, pressure roller, thermistor and thermostat. It sticks
the toner on a paper by heat and pressure to complete the printing job.
•
Thermostat
When the heat lamp overheats, the Thermostat cuts off the main power to prevent over- heating.
–
Thermostat Type: Non- Contact type THERMOSTAT
–
Control Temperature: 170
°C
± 5
C°
•
Thermistor
The Thermistor is a temperature detecting sensor.
–
Temperature Resistance: 78k ohms (180
°C)
•
Heat roller
The heat roller transfers the heat from the lamp to apply heat on the paper.
The surface of the heat roller is coated with Teflon, so toner does not stick to the surface.
•
Pressure roller
A pressure roller mounted under a heat roller that is made of a silicon resin, and the surface also is
coated with Teflon. When a paper passes between a heat roller and a pressure roller, toner
adheres to the surface of a paper permanently.
•
Halogen Lamp
–
Voltage 120 V: 115 ± 5%
Voltage 220 V: 230 ± 5%
–
Capacity: 850 Watt ± 25 W
s3320-261
Pressure Roller
Pressure Roller2
Halogen Lamp
Heat Roller
Thermistor
Thermostat
