Description: Main motor is not phase-locked and is not rotating at normal speed.
Causes: Main motor unlockedmatchr error
Code: E2, E3
Description: Laser Scanner motor is not phase-locked and is not rotating at normal speed L-Sync signal is not detected after APC (Auto Power Control). Irregular L-Sync signal is detected.
Causes: Laser scanner motor unlocked L-Sync over L-Sync short
Code: E4
Description: Fuser thermistor is disconnected.
Causes: Thermistor open error
Code: E6
Description: Engine Program ROM checksum error
Causes: Engine Program ROM checksum error
Code: F0
Description: Controller Board system Lock error
Causes: System does not lock because of failure on communication with the printer panel.