6
6. Troubleshooting
Polygon motor off timeout error
203The polygon mirror motor does not leave the READY status within 20 sec. after the polygon mirror motor switched off.
Polygon motor lock signal error
The signal remains HIGH for 200 ms (or 4times in 50msec polling) while the polygon mirror motor is rotating.
•Polygon motor/driver board harness loose or disconnected
204• Polygon motor/driver board defective
•Laser optics unit defective
1.Turn the main power off/on the machine.
2.Replace the interface harness of the laser optics unit.
3.Replace the laser optics unit.
Beam Synchronize error
The laser synchronizing detection signal for LD is not output within 400msec after the LD unit has turned on.
• Disconnected cable from the laser synchronizing detection unit or defective connection
220• Defective laser synchronizing detector
•Defective LD
•Defective ECB
1.Check the connectors.
2.Replace the laser optics unit.
3.Replace the ECB.
Video thermistor error
At power on, the temperature sensor in the optics unit detected a temperature lower than
268It detected a temperature higher than 105°C for more than 1sec.
•Thermistor disconnected (causes extremely low temperature reading)
•Thermistor damaged and short circuited (causes extremely high temperature reading)
1. Turn the machine's main power off, and then on.
2. Replace the thermistor.
118
