Transfer Belt & Fuser Unit; Major Functions - Epson AcuLaser C2900N Service Manual

Chapter 6 Principles of Operation
3.4 Transfer Belt & Fuser Unit

3.4.1 Major functions

- TRANSFER ASSY (PL6.1.7)
• Belt
Belt feeds the paper to the direction of FUSER UNIT
• SENSOR ADC
SENSOR ADC reads the toner patch on the BELT, and converts it to voltage value. Voltage value
is used to control the density of toner.
- FUSER UNIT (PL6.1.1)
The FUSER UNIT fixes toner which was transferred onto the paper but not fixed by the heat and
pressure and feeds paper before and after being fixed.
The FUSER UNIT mainly consists of the following parts:
• Heat Roll
• Heater Lamp
• Thermostat
• Temp. Sensor
- EXIT SENSOR
Detects passage of print after fixed based on the change of position of the actuator.
Epson AcuLaser C2900N
(Refer to 5.3.1 Potential Control)
• Pressure Belt
• Roll Assy Exit
• Exit Sensor
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Revision B
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