• Code: SC792
• Description: Projector lamp overheat Type: 4 - Description - The projector diagnostics notify the scanner IPU board that the projector lamp has overheated. Then the scanner IPU board notifies the SCU of it. - Detection Timing - When the projector is active
• Causes: • Projector control board SP-Log: 7-402-7

• Code: SC900
• Description: Main counter disabled Type: 2 - Description - Communication error between the main counter and main control board - Detection Timing - When counter information is uploaded or downloaded
• Causes: • Main counter • Main control board • SCU harness SP-Log: 7-402-9

• Code: SC901
• Description: Inconsistent main counter and backup counter Type: 2 - Description - This SC is displayed when the difference between the main and backup counter values is more than ±5. - Detection Timing - When the power switch is turned on When the Counter key is pressed
• Causes: • Main counter SP-Log: 7-402-9

• Code: SC902
• Description: SCU-SCSI communication error Type:1 - Description - This SC occurs when the power switch is turned on and neither the scanner IPU board nor main control board is recognized or when an initial error occurs in the SCSI driver. - Detection Timing - Always
• Causes: • SCU • SCSI cable SP-Log: 7-402-6

• Code: SC903
• Description: Serial communication error Type: 1 - Description - This SC is displayed when a counter serial I/O error is detected on the optics fiber cable between the SCU and the main control board for a successive five times. - Detection Timing - Always
• Causes: • SCU • Main control board • Fiber cable SP-Log: 7-402-6

• Code: SC920
• Description: SCU/RAM board abnormal Type: 2 - Description - The SCU executes the read/write test for the RAM board on the SCU and the read/write operation is not successfully done. This SC is not displayed just after the read/write test because the CPU enters the hold state. It is displayed after the power switch is turned off and on. - Detection Timing - When the power switch is turned on
• Causes: • RAM board SP-Log: 7-402-9

• Code: SC931
• Description: Printer NV-RAM abnormal Type: 1 - Description - When the main control board detects that illegal NV-RAM data has been loaded from the SCU, it notifies the SCU of an anomaly. - Detection Timing - When the power switch is turned on
• Causes: • RAM board (Battery) • Main control board SP-Log: 7-402-9

• Code: SC990
• Description: I/O control board 1 abnormal Type: 2 - Description - This SC is displayed when a serial/parallel I/O error is detected in the I/O control board 1 for a successive five times. - Detection Timing - Always
• Causes: • I/O control board 1 • Corona unit setting error • Connector/harness • Main control board SP-Log: 7-402-9