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5.7 BTR Assy & Fuser
5.7.1 Major functions
▼FUSER ASSY
The FUSER ASSY fixes toner which was transferred onto the paper but not fix ed by the heat and
pressure and feeds paper before and after being fixed.
The FUSER ASSY mainly consists of the following parts:
• Heat Roll• Belt Unit
• Heater Lamp• Roll Assy Exit
• Thermostat• Exit Sensor
• Temp Sensor
∇ Exit Sensor
Detects passage of print after fixed based on the change of position of the a ctuator.
▼BTR UNIT ASSY
The BTR UNIT ASSY consists of a BTR (Bias Transfer Roll) and a waste toner r ecovery system.
The BTR (Bias Transfer Roll) is opposed to the IDT 2 in the PHD ASSY and transfer the toner image on
the IDT 2 onto the paper.
▼FAN FUSER
The FAN FUSER exhausts the heat of FUSER ASSY to prevent inside temperature from overheating.