• 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: • Software defective

• 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: • Software defective

• Code: 980
• Description: NVRAM value error
  A critical SP code setting is not within range. If the machine is allowed to operate in this condition, this could lead to toner overflow and damage the machine.
• Causes:

• 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 • BICU defective • Connectors between BICU and controller loose or defective

• Code: 985
• Description: Scanner image data transfer error
  The image transfer from the engine to the controller via the PCI bus does not end within 3 s after starting.
• Causes: • Controller board defective • BICU defective • Connectors between BICU and controller loose or defective • SIB defective

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

• Code: 990
• Description: Software error 1
  The software performs an unexpected function and the program cannot continue.
• Causes: • Software defective, re-boot

• Code: 991
• Description: Software error 2
  The software performs an unexpected function. However, unlike SC990, recovery processing allows the program to continue.
• Causes: • Software defective, re-boot