C6400/6000 on Kyocera Mita KM1500

Almost all kyocera Mita products display error message C6XXX whenever a problem is detected in fixing temperature or fixing unit. C6000/C6200/C6050 and C6400 all are related to fixing unit. Service manual states that possible causes are as below:
C6000 & C6050
  • Poor contact in the thermistor connector terminal.
  • Thermistor installed incorrectly.
  • Thermal cutout triggered.
  • Heater lamp installed incorrectly.
  • Broken heater wire.
  • Shored thermistor
  • Broken heater control circuit on the power supply board.
  • Poor contact in the connector terminals. Check the connection of connectors CY7 on the engine board and CN2 on the power supply board.
  • Defective power supply board.
  • Defective engine board.
Sometimes only an unstable power source is the cause of these error messages.
How to reset:
  1. Press the Stop/clear (red) key, Start (green) key and the left copy exposure key in the order presented and hold them down.
  2. Release the keys and than press Stop/clear key again (within few seconds).
  3. Using the copy exposure adjustment keys or the Zoom +/- keys go to mode U163.
  4. Press the start key.
  5. If prompted (I'm not sure) confirm that you want to reset the fixing data.
  6. Here you go. 
Related Article:
How to reset fixing errors on other KM Copiers

1 comment :

  1. Hi your blog is very interesting. I have one problem i am facing in ir2318L. When the machine is switched on t diaplays the following error: Front/left door open please close the doors(sic). I checked both the switches in the front door and side door. the switches r okay and the doors r closed properly even then the same error persists. I also tried shorting the points of the switches in case the switch has gone bad but the error is not getting resolved. I am doubting the power supply pcb . please help me know of any other solution.