Service Call 
 
SM  6-3  M0C3/M0C4/M0C5/M0C6/M0C7 
6.2.2  SC 2XX (LASER OPTICS ERRORS) 
No.  Type  Error Name/Error Condition/Major Cause/Solution 
SC202  D  Polygon mirror motor on timeout error 
The polygon mirror motor does not reach the targeted operating speed within 10 
sec. after turning on. 
•  Polygon mirror motor/LD driver board harness loose or disconnected 
•  Polygon mirror motor/LD driver board defective 
1.  Turn the power OFF and ON. 
2.  Replace the polygon mirror motor/ laser unit. 
3.  Replace the interface harness of the laser unit. 
4.  Replace the main board. 
 
No.  Type  Error Name/Error Condition/Major Cause/Solution 
SC203  D  Polygon mirror motor off timeout error 
The polygon mirror motor does not leave the READY status within 20 sec. after 
the polygon mirror motor was switched off. 
•  Polygon mirror motor/LD driver board harness loose or disconnected 
•  Polygon mirror motor/LD driver board defective 
1.  Turn the power OFF and ON. 
2.  Replace the polygon mirror motor/ laser unit. 
3.  Replace the interface harness of the laser unit. 
4.  Replace the main board. 
 
No.  Type  Error Name/Error Condition/Major Cause/Solution 
SC204  D  Polygon mirror motor lock signal error 
The signal remains HIGH for 0.2 sec. (or 4 times in 50msec of polling) while the 
polygon mirror motor is rotating. 
Polygon mirror motor/LD driver board defective 
1.  Turn the power OFF and ON. 
2.  Replace the polygon mirror motor/ laser unit. 
3.  Replace the interface harness of the laser unit.