Description: Abnormally high fuser thermistor temperature Fuser thermistor detects a temperature higher than 210°C/410°F for 3 s
Causes: Deformed connector pin. Shorted fuser thermistor. Defective power source PWB. Defective main PWB.
Remedy: Deformed connector pin. If the I/F connector pins of the fuser unit and the main unit are deformed owing to foreign matters, such as paper dusts, replace the connectors or the units including the connectors. Shorted fuser thermistor. Replace the fuser unit . Defective power source PWB. Replace the power source PWB Defective main PWB. Replace the main PWB and check for correct operation .
Code: 6030
Description: Broken fuser thermistor wire Average input AD given by the thermistor is less than 2 for 300msec.
Causes: Defective connector cable or poor contact in the connector. Broken fuser thermistor wire. Fuser thermostat triggered. Defective main PWB.
Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Fuser unit and main PWB (YC15) Broken fuser thermistor wire. Replace the fuser unit . Fuser thermostat triggered. Replace the fuser unit . Defective main PWB. Replace the main PWB and check for correct operation .
Code: 6400
Description: Fixing control zero cross signal error The ZCROSS signal does not reach the main PWB for more than 2 s.
Causes: Defective connector cable or poor contact in the connector. Defective power source PWB. Defective main PWB.
Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Power source PWB (YC103) and main PWB (YC12) Defective power source PWB. Replace the power source PWB . Defective main PWB. Replace the main PWB and check for correct operation .
Code: F000
Description: Communication Error between Main PCB and Panel PCB Communication failure during the start-up or operation. * : Only 3 in 1 25/26 ppm model, 4 in 1 20/21, 25/26 ppm model
Causes: Defective main PWB. Defective operation PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB . Defective operation PWB. Replace the operation PWB and check for correct operation.
Code: F020
Description: RAM R/W error The average AD value of the sensor input is smaller than 2 during SLP_RLY is off and 300 ms.
Causes: Defective main PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB .
Code: F040
Description: Communication Error between Main PCB and Engine PCB Communication is failed between the controller and the engine.
Causes: Defective main PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB .