= 1: Primary fixing
2: Secondary fixing
Fixing roller main thermistor:
THM301(primary fixing),
THM306(secondary fixing)
Fixing external driver PCB:
UN304(primary fixing),
THM305(secondary fixing)
Fixing heater driver PCB:
UN306(primary fixing),
UN307(secondary fixing)
Fixing duplexing feed driver PCB:
UN311
DC controller PCB 1-2: UN124