• Code: E46-90
• Description: Image control abnormality
  The access to the memory is illegal.
• Causes: ICB (image control board) Expansion memory

• Code: E46-91
• Description: Image control abnormality
  The header read address is illegal.
• Causes: ICB (image control board) Expansion memory

• Code: E46-99
• Description: Image control abnormality
  E-RDH memory initialization error E-RDH memory may not be connected properly.
• Causes: ICB (image control board) Expansion memory

• Code: E50-01
• Description: Communication abnormality
  Main body drive serial input error 1. Serial data is not received from the main body drive section within 0.5 second after reception of power-on ACK.
• Causes: PRCB (printer control board)

• Code: E50-02
• Description: Communication abnormality
  Main body drive serial input error 2. Serial data is not received from the main body drive section within 0.5 second after reception of power-on ACK.
• Causes: PRCB (printer control board)

• Code: E50-03
• Description: Communication abnormality
  Main body drive serial input error 3. Serial data is not received from the main body drive section within 0.5 second after reception of power-on ACK.
• Causes: PRCB (printer control board)

• Code: E50-04
• Description: Communication abnormality
  Main body drive serial input error 4. Serial data is not received from the main body drive section within 0.5 second after reception of power-on ACK.
• Causes: PRCB (printer control board)

• Code: E50-05
• Description: Communication abnormality
  Drive board communication reception error detection fault. A reception error occurred during reception of drive board serial data, or a data checksum error or ID information error occurred four consecutive times although a resent request had been issued three times.
• Causes: PRCB (printer control board) Drive boards