• Code: SC441
• Description: Drum motor abnormal Type: 2 - Description - The main control board notifies the SCU when the drum motor does not start up within a predetermined period of time or does not output the LOCK signal for more than a predetermined period of time during the rotation. - Detection Timing - During the rotation of the drum motor
• Causes: • Drum motor • Main control board SP-Log: 7-402-4

• Code: SC450
• Description: Paper transfer charge abnormal Type: 2 - Description - The main control board notifies the SCU that the paper transfer charge output value from the high voltage power pack does not reach the target due to such causes as a leak or power pack failure. - Detection Timing - When the paper transfer charge is active
• Causes: • High voltage power supply • Leak locations SP-Log: 7-402-4

• Code: SC452
• Description: Transfer belt H.P. not detected Type: 2 - Description - The main control board notifies the SCU that the belt H.P. sensor does not detect the belt mark (does not go on) while the transfer belt is moving at normal speed. - Detection Timing - During normal-speed rotation of the transfer belt
• Causes: • Transfer belt H.P. sensor • Main control board SP-Log: 7-402-4

• Code: SC453
• Description: Transfer belt H.P. sensor abnormal - Stays on Type: 2 - Description - The main control board notifies the SCU that the belt H.P. sensor does not go off while the transfer belt is moving at normal speed. - Detection Timing - During normal-speed rotation of the transfer belt
• Causes: • Transfer belt H.P. sensor • Main control board SP-Log: 7-402-4

• Code: SC495
• Description: Thermo sensor abnormal Type: 5 - Description - The voltage read by the thermosensor on I/O control board 1 is out of the specified range (between 0.2 V and 3.5 V) for a successive 30 times. - Detection Timing - When the power switch is turned on When the front cover is closed
• Causes: • Thermosensor • Main control board SP-Log: 7-402-4

• Code: SC496
• Description: Humidity sensor abnormal Type: 5 - Description - The voltage read by the humidity sensor on I/O control board is out of the specified range (between 0.2 V and 3.5 V) for a successive 30 times. - Detection Timing - When the power switch is turned on When the front cover is closed
• Causes: • Humidity sensor • Main control board SP-Log: 7-402-4

• Code: SC501
• Description: Tray upper limit sensor disabled (1st bank) Type: 4 - Description - The paper tray unit diagnostics notify the main control board when the 1st bank upper limit sensor does not operate. - Detection Timing - When the power switch is turned on When the paper tray unit operates
• Causes: • Paper tray unit • Main control board SP-Log: 7-402-5

• Code: SC502
• Description: Tray upper limit sensor disabled (2nd bank) Type: 4 - Description - The paper tray unit diagnostics notify the main control board when the 2nd bank upper limit sensor does not operate. - Detection Timing - When the power switch is turned on When the paper tray unit operates
• Causes: • Paper tray unit • Main control board SP-Log: 7-402-5