Description: Main motor lock detection. The main motor does not rotate. After rotation of the main motor, the motor lock signal is detected for 1 sec or more. During rotation of the main motor, the motor lock signal is detected for 1 sec. When the main motor is stopped, the motor lock signal is not detected for 5sec or more. (Though the motor is stationary, it is judged as stable rotation.)
Causes: Main motor unit abnormality Improper connection or disconnection the main motor and the harness. MCU PWB abnormality
Remedy: Use SIM 25-01 to check the main motor operations. Check connection of the main motor harness/connector. Replace the main motor. Replace the MCU PWB.
Code: L4 31
Description: Fusing fan lock detection. The fusing fan does not rotate. Sampling is performed in 50msec interval, and the normal signal cannot be detected 5 times continuously in 1 sec.
Causes: Fan trouble or harness contact trouble and disconnection
Remedy: Use SIM05-02 to check the operations of the fusing fan motor. Heck connection of the fan harness and the connector. Replace the fan. Replace the MCU PWB.
Code: L4 32
Description: PSFAN lock detection. The PSFAN does not rotate. Sampling is performed in 50msec interval, and the normal signal cannot be detected 5 times continuously in 1 sec.
Causes: Fan trouble or harness contact trouble and disconnection
Remedy: Check connection of the fan harness and the connector. Replace the fan. Replace the MCU PWB.
Code: L6 10
Description: Polygon motor lock detection Detail The polygon motor does not rotate After beginning to rotate the polygon motor, the motor lock signal is detected for 20sec or more. During rotation of the polygon motor, the motor lock signal is detected for 1sec.
Causes: Polygon motor unit abnormality Improper connection or disconnection of the polygon motor and the harness. MCU PWB abnormality
Remedy: Use SIM 61-3 to check the polygon motor operations. Check connection of the polygon motor harness/connector. Replace the polygon motor.. Replace the MCU PWB.
Code: U2 04
Description: EEPROM read/write error (Serial communication error)
Causes: EEPROM abnormality
Remedy: Check that the EEPROM is properly set. Use SIM 16 to cancel the trouble. Replace the MCU PWB.
Code: U2 11
Description: Counter check sum error (EEPROM). Check sum error of the counter area in the EEPROM
Causes: EEPROM abnormality
Remedy: Check that the EEPROM is properly set. Use SIM 16 to cancel the trouble. Replace the MCU PWB.