ContentsContents6.1 Troubleshooting .............................................................................................................................................................6-16.1.1 Outline.......................................................................................................................................................................................... 6-16.1.1.1 Outline of Troubleshooting .............................................................................................................................................................................6-16.2 Location of Connectors and Pin Arrangement...............................................................................................................6-16.2.1 Main controller PCB .................................................................................................................................................................... 6-16.2.2 Carriage PCB ............................................................................................................................................................................. 6-106.2.3 Power supply.............................................................................................................................................................................. 6-156.2.4 Roll feed unit PCB ..................................................................................................................................................................... 6-156.3 Version Up ...................................................................................................................................................................6-176.3.1 Firmware Update Tool ............................................................................................................................................................... 6-176.4 Service Tools................................................................................................................................................................6-186.4.1 Tool List..................................................................................................................................................................................... 6-18