1.SC Codes 
25 
Error Name/Error Condition/Major Cause/Solution 
multimeter indicates 24±2V. 
*2 Do not replace the Polygon Motor. 
 
Error Name/Error Condition/Major Cause/Solution 
Leading Edge: LD1 synchronization detection error: 1st 
Leading Edge: LD1 synchronization detection error: 2st 
Leading Edge: LD1 synchronization detection error: 3st 
Leading Edge: LD1 synchronization detection error: 4st 
Leading Edge: LD1 synchronization detection error: 5st 
The synchronization detection signal (writing scan period signal) cannot be 
received. 
  Condensation 
  Synchronized Optical Unit , Laser Synchronization Detector defective, or 
LD board defective 
  Synchronized harness damaged, or disconnected 
1.  Cycle the main power switch off/on. 
2.  Check for condensation. 
3.  Replace the laser unit. 
 
Error Name/Error Condition/Major Cause/Solution 
The FGATE signal did not turn ON even if the specified period passed after the