Service Manual
Operating Principles
2.1.1.5 Paper Separation
After image is transferred onto the paper, the paper is separated from the
drum by means of
curvature separation. In the curvature separation method, the diameter of the
drum is
designed to be small enough to separate the paper from the
drum easily. And DETACH SAW
(discharge plate) on trans chute assembly support paper separation by discharged from paper
backside.
DETACH SAW
—
Drum
Figure 2-8. Paper Separation
2.1.1.6 Fusing
Fusing is the process of fixing the toner image transferred from the image transfer process on the
paper. This time, we have used the heating roller method for fusing. The heating roller method is
the process of fixing the toner image using the heat roll that is heated by the heater assy.
When switch on the power, the heater assembly lights up until the temperature of the heat roll
becomes 147 degrees C. After the warm up, the MC PWB (Main Control Unit Printed Wiring
Board: engine controller board) controls the on/off operation of the heater, according to
signals from the thermistor.
Thermistor
Heater Lamp
Figure 2-9. Fusing
Lower Fusing Roller
Rev. A
2-s
