Service manual

SC551: Pressure roller thermistor open
Type: 1
- Description -
When the pressure roller thermistor outputs an analog value
corresponding to 0
°
C, the main control board determines that the
pressure roller thermistor is broken and notifies the SCU of it.
- Detection Timing -
Always
- Possible Causes -
• Pressure roller thermistor
• Main control board
SP-Log: 7-402-5
SC552: Pressure roller warm-up error
Type: 1
- Description -
The main control board notifies the SCU when the pressure roller
thermistor does not output an analog value corresponding to the ready
temperature within 12 minutes after the power switch is turned on.
- Detection Timing -
When the power switch is turned on
- Possible Causes -
• Pressure roller thermistor
• Main control board
SP-Log: 7-402-5
SC553: Pressure roller overheat
Type: 1
- Description -
When the pressure roller thermistor outputs an analog value
corresponding to 200
°
C, the main control board judges an overheat
and notifies the SCU of this.
- Detection Timing -
Always
- Possible Causes -
• Pressure roller thermistor
• Main control board
SP-Log: 7-402-5
SERVICE CALL CONDITIONS
A166/A187/A189 6-20 SM
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA