TASKalfa 3500i - C6030;C6050 Fuser Thermistor Errors; Check engine firmware version

C6030(Fuser thermsitor 1 broken), C6050 (Abnormal low temperature
detected by Fuser thermistor 1)
Check whether the engine firmware Is above [Upgrade Pack Ver. V3.06]
Firm Version UP
NG
C6030
Replace the Fuser unit
Replace the engine PCB
C6050
OK
Replace IH PCB
OK
OK
Replace the IH coil
OK
Replace the harness between the engine PCB and the fuser unit.
OK
OK
NG
OK
NG
OK
NG
OK
NG
OK
OK
Check whether the voltage drop occurs (NG less 70V during operation)
OK
Change the power code connection.
NG
OK
OK
NG
Item code for harness
6500i/8000i :302K946590
OK NG
85