• Code: 672
• Description: Controller-to-operation panel communication error at startup
  After powering on the machine, communication between the controller and operation panel does not begin, or the communication is interrupted after a normal startup.
• Causes: • Controller stalled • Controller board installed incorrectly • Defective controller board • Operation panel connector loose or defective • Poor connection of DIMM and optional boards on the controller board

• Code: 685
• Description: SBU/IPU communication error
  While data is sent between the scanner and BICU board, a communication error has occurred.
• Causes: • Defective scanner unit cable • Defective SBU board • Defective BICU board

• Code: 687
• Description: PER command error
  Some image data is transferred. → The controller does not report the necessary memory address.
• Causes: • Poor connection between BICU and controller • Defective BICU • Defective controller

• Code: 720
• Description: Finisher jogger motor error (500-sheet finisher)
  • The finisher jogger H.P sensor remains de-activated for a certain time when returning to home position. • The finisher jogger H.P sensor remains activated for a certain time when moving away from home position.
• Causes: • Jogger HP sensor defective • Jogger motor defective • Defective finisher control board • Defective BICU • Defective Ex-IOB • Incorrect installation

• Code: 722
• Description: Finisher jogger motor error (1000-sheet finisher)
  The finisher jogger H.P sensor remains de-activated for a certain time when returning to home position. The finisher jogger H.P sensor remains activated for a certain time when moving away from home position.
• Causes: • Jogger HP sensor defective • Jogger motor defective • Defective finisher control board • Defective BICU • Defective Ex-IOB • Incorrect installation

• Code: 724
• Description: Finisher staple hammer motor error (1000-sheet finisher)
  Stapling does not finish within 600 ms after the staple hammer motor turned on.
• Causes: • Staple jam • Stapler overload caused by trying to staple too many sheets • Staple hammer motor defective • Defective finisher control board • Defective BICU • Defective Ex-IOB • Incorrect installation

• Code: 725
• Description: Finisher stack feed-out motor error (1000-sheet finisher)
  The stack feed-out belt H.P sensor does not activate within a certain time after the stack feed-out motor turned on.
• Causes: • Stack feed-out HP sensor defective • Stack feed-out motor defective • Defective finisher control board • Defective BICU • Defective Ex-IOB • Incorrect installation

• Code: 726
• Description: Finisher tray lift motor error (1000-sheet finisher)
  The stack height sensor does not activate within a certain time after the tray lift motor turned on.
• Causes: • Tray lift motor defective • Stack height sensor defective • Defective finisher control board • Defective BICU • Defective Ex-IOB • Incorrect installation