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6. Troubleshooting
M-6 Fixing heater temperature failure
Possible cause and Remedy
1. Poor thermistor harness contact
• Is the contact of connector CN19 on the main PCB good?
No: Reconnect the connector.
2. Blown thermal fuse
• Remove the fixing unit and measure the resistance of the thermal fuse. Is it open circuit?
Yes: Replace the fixing unit.
3. Blown thermostat
• Remove the fixing unit and measure the resistance of the thermostat. Is it open circuit?
Yes: Replace the fixing unit.
4. Halogen heater lamp failure
• Remove the fixing unit and measure the resistance of the halogen heater lamp. Is it open circuit?
Yes: Replace the halogen heater lamp.
6
M-7 Laser Unit failure
Possible cause and Remedy
1. Harness connection failure (1)
• Is connector CN6 on the main PCB secured correctly?
No: Reconnect the connector securely.
Yes: Replace the laser unit.
2. Harness connection failure (2)
• Is the connection of the scanner motor connector CN6 on the main PCB secure?
No: Reconnect the connector securely.
Yes: Replace the laser unit.
M-8 Fixing unit failure
Possible cause and Remedy
1. Poor thermistor harness contact
• Is the contact of connector CN19 on the main PCB good?
No: Reconnect the connector.
2. Blown thermal fuse
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Table of Contents
Troubleshooting
