Canon iPF720 Service Manual page 145

Contents
6.1 Troubleshooting .............................................................................................................................................................6-1
6.1.1 Outline.......................................................................................................................................................................................... 6-1
6.1.1.1 Outline of Troubleshooting .............................................................................................................................................................................6-1
6.2 Location of Connectors and Pin Arrangement...............................................................................................................6-1
6.2.1 Main controller PCB .................................................................................................................................................................... 6-1
6.2.2 Carriage relay PCB ...................................................................................................................................................................... 6-8
6.2.3 Head relay PCB.......................................................................................................................................................................... 6-13
6.3 Version Up ...................................................................................................................................................................6-17
6.3.1 Firmware Update Tool ............................................................................................................................................................... 6-17
6.4 Service Tools................................................................................................................................................................6-18
6.4.1 Tool List..................................................................................................................................................................................... 6-18
6.4.2 Using the Cover Switch Tool..................................................................................................................................................... 6-18
Contents