Lexmark Optra C Service Manual - Page 53
Error (123/124) Mirror Motor Start-up or Rotation, Diagnostic Information 2-21
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5045-001 Error (123/124) Mirror Motor Start-up or Rotation FRU Action 1 Poor connection Check the connection on the DC controller PCB connector J102. Reconnect it. 2 Power supply unit (low voltage) Are there approximately 24 V dc between DC controller PCB connectors J102-10 (24 V) and J102-5 (GND)? Check whether +24 V dc is being supplied between DC controller PCB connectors J101-4 (24 V) and J101-3 (GND). If it is not, replace the power supply unit. 3 Laser/scanner unit DC controller PCB Test print a page. Does the voltage between DC controller PCB connectors J102-8 and J102-7 (GND) change from about 5 V dc to OV? If yes, replace the laser/scanner unit. If no, replace the DC controller PCB, see "DC Controller Board Information" on page 2-2. Diagnostic Information 2-21