• Code: F9-80
• Description: Printer PWB communication trouble (Protocol)
  Communication trouble between MCU and printer PWB (Protocol error)
• Causes: Printer PWB connector disconnection Harness trouble between the printer PWB and the MCU PWB Motherboard connector pin breakage Printer PWB ROM trouble/Data disturbance
• Remedy: Check the connectors and harness of the printer PWB and MCU PWB. Check the grounding of the copier. Check ROM on printer PWB.

• Code: F9-81
• Description: Printer PWB communication trouble (Parity)
  Communication trouble between MCU and printer PWB (Parity error)
• Causes: Printer PWB connector disconnection Harness trouble between the printer PWB and the MCU PWB Motherboard connector pin breakage Printer PWB ROM trouble/Data disturbance
• Remedy: Check the connectors and harness of the printer PWB and MCU PWB. Check the grounding of the copier. Check ROM on printer PWB.

• Code: F9-82
• Description: Printer PWB communication trouble (Overrun)
  Communication trouble between MCU and printer PWB (Overrun error)
• Causes: Printer PWB connector disconnection Harness trouble between the printer PWB and the MCU PWB Motherboard connector pin breakage Printer PWB ROM trouble/Data disturbance
• Remedy: Check the connectors and harness of the printer PWB and MCU PWB. Check the grounding of the copier. Check ROM on printer PWB.

• Code: F9-84
• Description: Printer PWB communication trouble (Framing)
  Communication trouble between MCU and printer PWB (Framing error)
• Causes: Printer PWB connector disconnection Harness trouble between the printer PWB and the MCU PWB Motherboard connector pin breakage Printer PWB ROM trouble/Data disturbance
• Remedy: Check the connectors and harness of the printer PWB and MCU PWB. Check the grounding of the copier. Check ROM on printer PWB.

• Code: F9-88
• Description: Printer PWB communication trouble (Timeout)
  Communication trouble between MCU and printer PWB (Timeout error)
• Causes: Printer PWB connector disconnection Harness trouble between the printer PWB and the MCU PWB Motherboard connector pin breakage Printer PWB ROM trouble/Data disturbance
• Remedy: Check the connectors and harness of the printer PWB and MCU PWB. Check the grounding of the copier. Check ROM on printer PWB.

• Code: F9-99
• Description: Machine-PCL board language error
  The machine language setup does not coincide with the PCL board language setup.
• Causes: PCL board connection error SIM setup error
• Remedy: Check the firmware of the PCL board and the combination of the panel screen data, and download the correct version, if necessary. Check the machine language information. (Machine language setup: SIM 26-22)

• Code: H2-00
• Description: Main heater lamp thermistor open hard detection
  Main heater lamp thermistor open detection Fusing unit not installed
• Causes: Thermistor defect Control PWB failure Fusing section connector contact failure Fusing unit not installed
• Remedy: Check the harness and the connector of the thermistor and the MCU. Clear the display of self-diagnostics with SIM 14.

• Code: H2-01
• Description: Sub heater lamp thermistor open hard detection
  Sub heater lamp thermistor open detection Fusing unit not installed
• Causes: Thermistor defect Control PWB failure Fusing section connector contact failure Fusing unit not installed
• Remedy: Check the harness and the connector of the thermistor and the MCU. Clear the display of self-diagnostics with SIM 14.