Canon iPF780 Series Service Manual page 90

Power Supply PCB
+26V generation function
AC inlet
+21.5V generation function
Host Computer
HDD Expansion PCB
HDD
HDD Controller
Carriage PCB
Linear Encoder
Sensor
Printhead
IC401
DI Sensor reading
EEPROM
control function
Temperature reading
control function
Multi Sensor
EEPROM
Main Controller PCB
BATS801
Lithium Battery
IC803
RTC
LAN Controller
IC201
IC701 FLASH ROM
IC2
Thermistor
IC503/IC504
Multi Sensor
control function
IC1501/IC1701
IC1601-IC1603
Power supply control function
IC601-IC604
SDRAM
IC802
EEPROM
IC1
Interface control function
IC2501
Image data control function
Hard Disk Drive control function
Linear Encoder detection function
Heat pulse control function
Operation panel control function
PWM control function
Remaining ink level
detection function
LED control function
EEPROM contol function
Sensor detection function
Solenoid control function
Motor control function
IC4101/IC4200
IC4300/IC4401
Motor Driver
F-2-28
Chapter 2
IC301/IC302
SDRAM
Operation Panel
Fans
Ink Tank ROM PCB
Maintenance Cartridge
Relay PCB
IC1 EEPROM
Sensors
Solenoids
Motors
2-31