Service Call
SM
6-3
M156/M157/M176/M177
T
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b
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Polygon motor/driver board harness loose or disconnected
Polygon motor/driver board defective
Laser optics unit defective
1. Turn the machine main power off/on.
2. Replace the interface harness of the laser optics unit.
3. Replace the laser optics unit.
220
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
Defective laser synchronizing detector
Defective LD
Defective Main board
1. Check the connectors.
2. Replace the laser optics unit.
3. Replace the Main board.
268
Laser Scanning Unit thermistor error
At power on, the temperature sensor in the optics unit detected a temperature
lower than -30°C for more than 4 sec.
-or-
It 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.
Содержание M156
Страница 1: ...M156 M157 M176 M177 SERVICE MANUAL ...
Страница 14: ...PRODUCT INFORMATION REVISION HISTORY Page Date Added Updated New None ...
Страница 19: ...INSTALLATION REVISION HISTORY Page Date Added Updated New None ...
Страница 22: ...PREVENTIVE MAINTENANCE REVISION HISTORY Page Date Added Updated New None ...
Страница 29: ...REPLACEMENT AND ADJUSTMENT REVISION HISTORY Page Date Added Updated New None ...
Страница 87: ...SERVICE TABLES REVISION HISTORY Page Date Added Updated New None ...
Страница 116: ...TROUBLESHOOTING REVISION HISTORY Page Date Added Updated New None ...
Страница 136: ...ENERGY SAVE REVISION HISTORY Page Date Added Updated New None ...
Страница 143: ...M156 M157 M176 M177 SERVICE MANUAL APPENDICES ...
Страница 145: ...APPENDIX SPECIFICATIONS REVISION HISTORY Page Date Added Updated New None ...
Страница 154: ...ERROR MESSAGES REVISION HISTORY Page Date Added Updated New None ...