• Code: 953
• Description: Scanner setting error
  The IPU does not respond with the scanner setting signal required to start scanning processing.
• Causes: Download controller firmware

• Code: 954
• Description: Printer setting error
  The IPU does not respond with the settings that are required to start image processing by the printer.
• Causes: • Replace the IPU board • Replace the controller board • Download the controller firmware

• Code: 955
• Description: Memory setting error
  The IPU does not respond with the settings that are required to start image processing using the memory.
• Causes: • Replace the IPU board • Replace the controller board • Download the controller firmware

• Code: 964
• Description: Printer ready error
  The printer ready signal is not generated within 17 seconds after the IPU received the print start signal.
• Causes: • Replace the IPU board • Replace the controller board • Download the controller firmware

• Code: 984
• Description: Print image data transfer error
  The image transfer from the controller to the engine via the PCI bus does not end within 15 s after starting.
• Causes: • Controller board defective • SBCU board defective • Connectors between SBCU and controller loose or defective

• Code: 986
• Description: Software write parameter setting error
  An unstable area at the storage destination in the settings table is set at NULL for the parameter received by the write module.
• Causes: • Download controller firmware again

• Code: 990
• Description: Software performance error
  The software attempted to perform an unexpected operation.
• Causes: • Software defective • Internal parameter incorrect • Insufficient working memory • When this SC occurs, the file name, address, and data will be stored in NVRAM. This information can be checked by using SP7-403. Note the above data and the situation in which this SC occurs. Then report the data and conditions to your technical control center.

• Code: 991
• Description: Software continuity error
  The software attempted to perform an unexpected operation. However, unlike SC990, the object of the error is continuity of the software.
• Causes: • No operation required. This SC code does not appear on the panel, and is only logged.