HP M1522nf - LaserJet MFP B/W Laser - Page 74

Figure 4-6 Engine-control-system circuit diagram
High-voltage
power supply
circuit
Pressure roller
AC input
circuit
Low-voltage power
supply circuit
Main motor
Solenoids
Sensors
Laser driver
BD sensor
IC201
CPU
Fan motor drive
circuit
Fan
Option
Memory tag
Memory tag circuit
ECU PCA
Fuser control
Fuser
Transfer roller
Print cartridge
Formatter
Laser/scanner
motor
IC502
Reset IC
56 Chapter 4 Operational theory ENWW