• Code: 47
• Description: Paper transfer negative bias open The PWM duty has been 50% or greater for 240 ms.
• Causes: There is disconnection in the paper transfer bias supply circuit. (Dirty or deformed electrodes)

• Code: 48
• Description: Paper transfer negative current error A/D converted voltage has been 4.8 V or more for 240 ms.
• Causes: There is a short circuit in the paper transfer bias supply circuit (due to deformed terminals or electrodes or conductive foreign matter)

• Code: 49
• Description: Pressure roller reheat timeout When reheating, the roller temperature does not reach the reheat start temperature (target temperature -20°C) within five minutes.
• Causes: Pressure roller thermistor, pressure roller lamp connector, MCU

• Code: 50
• Description: Hot roller reheat timeout When reheating, the roller temperature does not reach the reheat start temperature (target temperature -10°C) within five minutes.
• Causes: Hot roller thermistor, hot roller lamp connector, MCU

• Code: 51
• Description: Pressure roller lamp full-power operation error When full-power operation occurs during reheating, the main motor is not running and the difference between the current temperature and that of 60 seconds ago is 18°C or less.
• Causes: Pressure roller thermistor, pressure roller lamp connector, MCU

• Code: 52
• Description: Hot roller lamp fullpower operation error When full-power operation occurs during reheating, the main motor is not running and the difference between the current temperature and that of 60 seconds ago is 18°C or less.
• Causes: Hot roller thermistor, hot roller lamp connector, MCU

• Code: 57
• Description: Print command error When an abnormal combination of print commands is received.
• Causes:

• Code: 59
• Description: Temperature sensor error 5 V (4.75 V) or more has continuously been detected for five seconds.
• Causes: Temperature sensor