Canon iPF9000S Troubleshooting Manual page 142

Electrical System Block Diagram
a
②
Main controller
iPF5000 Series Carriage Unit
①
a
②
Main controller
iPF800/iPF8000 Series Carriage Unit
Troubleshooting Guide
①
Power PCB
③ Flat cable (long)
Power PCB
b
③
Flat cable (long)
b
⑧
④
a b
⑧
iPF700 Series Carriage Unit
4-22
⑥ Carriage PCB
⑦
Contact pin
Printhead
Carriage relay PCB
⑤
Flat cable (short)
⑥
Head relay PCB
⑦
Contact pin
Printhead