• Code: 040
• Display: Service Call 040: Error
• Description: CU EEPROM Error
• Remedy: Can the printer recover from the error by replacing the EEPROM on the CU board?
  Replace the EEPROM. (Settings of the user must be restored on the new.) Replace the SWA board. (The EEPROM needs replacement.)

• Code: 041
• Display: Service Call 041: Error
• Description: U Flash Error. On-CU-board Flash ROM Error
• Remedy: Does the error message appear again? Yes Replace the SWA board. (The EEPROM needs replacement.)

• Code: 050
• Display: Service Call 050: Error
• Description: Operator Panel Error
• Remedy: Does the error message appear again? Yes See the flowchart for the problems with no LCD message displayed.

• Code: 051
• Display: Service Call 051: Error
• Description: CU Fan Error. On-CU-board CPU Cooling Fan Problem
• Remedy: Is the on-CU-board connector connected properly? Can the printer recover from the error by replacing the fan?
  Connect the connector properly. Replace the fan. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 063
• Display: Service Call 063: Error
• Description: Network Comm.Error. CU ~ NIC H/W I/F Problem
• Remedy: Is the network board installed properly? Can the printer recover from the error by replacing the network board?
  Install the network board properly. Replace the network board. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 070
• Display: Service Call 070: Error
• Description: CANT_HAPPEN. PS F/W Problem Detection
• Remedy: Is it recovered by turning the printer off/on. No Replace the SWA board. (The EEPROM needs replacement.)

• Code: 072
• Display: Service Call 072: Error
• Description: Engine Communication Error PU ~ CU I/F Error
• Remedy: Is the CU Assy installed properly? Can the printer recover from the error by replacing the SWA board?
  Install the CU Assy properly. Replace the SWA board. (The EEPROM needs replacement.) Replace the PU board.

• Code: 073 ... 075
• Display: Service Call 073: Error ~ 075: Error
• Description: Video Overrun Detect
• Remedy: Is the CU Assy installed properly? Can the printer recover from the error by replacing the SWA board?
  Install the CU Assy properly. Replace the SWA board. (The EEPROM needs replacement.)