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2.7.2.2 General description
LBP6000 / LBP6000B
Engine controller is the circuit to control the operation sequence of the host machine and it is controlled by the CPU inside the engine controller.
When the power is turned ON and DC power is supplied through the low voltage power inside engine controller, CPU starts the printer operation control.
Then, CPU drives the loads such as laser diode, motors and solenoids etc. according to the image data that is input by the main controller when status becomes
stand-by mode.
The following is the block diagram of this circuit.
Fixing unit
AC input
Transfer roller
Toner Cartridge
Main controller
Engine controller
Fixing control
Low-voltage
power supply
High-voltage
power supply
CPU
F-2-42
Chapter 2
Motor
Solenoid
Sensor
Switch
Laser/scanner
unit
2-33
0025-1186
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