Service manual

SC541: Fusing (hot roller) thermistor open
Type: 1
- Description -
When the fusing (hot roller) thermistor outputs an analog value
corresponding to 0
°
C, the main control board determines that the
fusing thermistor is broken and notifies the SCU of this.
- Detection Timing -
Always
- Possible Causes -
• Fusing (hot roller) thermistor
• Main control board
SP-Log: 7-402-5
SC542: Fusing (hot roller) warm-up error
Type: 1
- Description -
The main control board notifies the SCU when the fusing (hot 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 -
• Fusing (hot roller) thermistor
• Main control board
SP-Log: 7-402-5
SC543: Fusing (hot roller) overheat
Type: 1
- Description -
When the fusing (hot roller) thermistor outputs an analog value
corresponding to 200
°
C, the main control board detects an overheat
and notifies the SCU of it.
- Detection Timing -
At all times
- Possible Causes -
• Fusing (hot roller) thermistor
• Main control board
SP-Log: 7-402-5
SERVICE CALL CONDITIONS
A166/A187/A189 6-18 SM
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA