Ricoh MP1600

• Code: 828
• Description: Self-diagnostic Error: ROM
  The resident read-only memory returned an error during the self-diagnostic test.
• Causes: - Controller board defective
  - Download controller firmware again

• Code: 829
• Description: Self-diagnostic Error: Optional RAM
  The optional RAM returned an error during the self-diagnostic test
• Causes: - Replace the optional memory board
  - Controller board defective

• Code: 838
• Description: Self-diagnostic Error: Clock Generator
  A verify error occurred when setting data was read from the clock generator via the I2C bus
• Causes: - Replace the controller board

• Code: 850
• Description: Network I/F Abnormal
  NIB interface error.
• Causes: - NIB defective
  - Controller board defective

• Code: 857
• Description: USB I/F Error
  USB interface error detected.
• Causes: - Defective controller

• Code: 900
• Description: Electrical total counter error
  The electrical total counter does not work properly.
• Causes: - NVRAM on the GDI controller board defective