Error code 4604 on Bizhub C6000
Estimated abnormal parts:
• Fusing unit
• Printer control board (PRCB)
• AC drive board (ACDB)
• Fusing heater lamp /1 (L2)
• Fusing heater lamp /2 (L3)
• Fusing heater lamp /3 (L4)
• Temperature sensor /1 (TH1)
WARNING
• After replacing the defective parts, be sure to set the DIPSW 3-1 to 0. If DIPSW3-1 is set to 0 before defective parts are fixed, it may cause fire.
Solution
1. Check the connection between the rear side connector of the fusing unit and the main body side connector, and repair it if any abnormality.
2. Check the connector connection and the wiring between PRCB and the temperature sensor, and repair it if any abnormality.
3. Check the connector connection and the wiring between ACDB and the fusing heater lamp, and repair it if any abnormality. (Wiring diagram: Main body (1/3): 3-E)
4. Check the installation condition of the fusing heater lamp and ON/OFF with I/O, and repair/replace it if any abnormality. (Wiring diagram: Main body (1/3): 3-D)
5. Check the installation condition of TH1 and temperature of I/O, and adjust/replace it if any abnormality. (Wiring diagram: Main body (1/3): 3-F)
6. Replace TH1.
7. ReplaceL2, L3 and L4.
8. Replace ACDB.
9. Replace PRCB.
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