• Code: SC547
• Description: Zero Cross Signal Malfunction Definition [A] Zero cross signals are not detected within a certain period within 500 ms after the main power switch has been turned on.
• Causes: · Power supply board defective · Noise on the ac power line

• Code: SC548
• Description: Fusing Unit Installation Error Definition [A] The machine cannot detect the fusing unit when the front cover and right cover are closed.
• Causes: · Fusing unit is not installed · Poor fusing unit connection

• Code: SC602
• Description: Communication Error between BICU and HDD Controller Definition [B] The BICU cannot communicate with the HDD controller.
• Causes: · Poor connection between the BICU board and HDD controller · HDD controller defective · BICU board defective

• Code: SC621
• Description: Communication Error between BICU and Finisher Definition [B] The BICU cannot communicate with the finisher properly.
• Causes: · Poor connection between the BICU board and the finisher main board · Finisher main board defective · BICU board defective

• Code: SC623
• Description: Communication Error between BICU and Paper Tray Unit Definition [B] The BICU cannot communicate with the paper tray unit properly.
• Causes: · Poor connection between the BICU board and the paper tray unit main board · Paper tray unit main board defective · BICU board defective

• Code: SC624
• Description: Communication Error between BICU and LCT Definition [B] The BICU cannot communicate with the LCT properly.
• Causes: · Poor connection between the BICU board and the LCT main board · LCT main board defective · BICU board defective

• Code: SC722
• Description: Finisher Jogger Motor Error Definition [B] 1) The finisher jogger H.P sensor remains de-activated for more than a certain time when returning to home position. 2) The finisher jogger H.P sensor remains activated for more than a certain time when moving away from home position.
• Causes: · Jogger H.P sensor defective · Jogger motor defective

• Code: SC724
• Description: Finisher Staple Hammer Motor Error Definition [B] Stapling does not finish within a certain time after the staple hammer motor turned on.
• Causes: · Staple hammer motor defective · Staple jam