SC554: Pressure roller low temperature abnormal
- Definition - [A]
A pressure roller temperature of below 70°C is detected 6 times after
warm-up is completed.
- Possible causes -
• Pressure roller thermistor defective
• AC drive board defective
• Main control board defective
• Pressure roller thermistor not in position
• Pressure roller lamp open
SC555: Pressure roller ready temperature abnormal
- Definition - [A]
The pressure roller temperature goes below the ready temperature (10°C
below the control temperature) after warm-up is completed, and does not
reach the ready temperature within 6 minutes.
- Possible causes -
• Pressure roller thermistor defective
• AC drive board defective
• Main control board defective
SC557: Pressure roller temperature does not increase
- Definition - [A]
During warm-up, pressure roller temperature does not increase when
compared to the temperature 1 minute before.
- Possible causes -
•
Pressure roller thermistor defective
•
AC drive board defective
•
Main control board defective
SC558: Zero cross signal abnormal
- Definition - [A]
Zero cross signals are not detected within a certain period.
- Possible causes -
•
Main control board defective
Trouble -
shooting
SM 6-21 A172/A199
To Next Page
Loading...
