• Code: F9-82
• Description: Printer PWB communication trouble (Overrun)
  Communication trouble between MCU and printeu PWB (Overrun error)
• Causes: Printer PWB connector disconnection Printer PWB MCU PWB harness failure Printer PWB mother board connector pin breakage. Printer PWB ROM defect, data failure

• Code: F9-84
• Description: Printer PWB communication trouble (Framing)
  Communication trouble between MCU and printer PWB (Framing error)
• Causes: Printer PWB connector disconnection Printer PWB MCU PWB harness failure Printer PWB mother board connector pin breakage. Printer PWB ROM defect, data failure

• Code: F9-88
• Description: Printer PWB communication trouble (Time-out)
  Communication trouble between MCU and printeu PWB (Time-out error)
• Causes: Printer PWB connector disconnection Printer PWB MCU PWB harness failure Printer PWB mother board connector pin breakage. Printer PWB ROM defect, data failure

• Code: H2-00
• Description: Thermistor open detection
  Fusing thermistor open
• Causes: Thermistor defect MCU PWB defect Fusing section connector contact failure Power supply failure Fusing unit not installed

• Code: H3-00
• Description: Heat roller abnormally high temperature
  Fusing temperature of 220 ~ 240°C.
• Causes: Thermistor defect MCU PWB defect Fusing connector connection failure Power supply failure

• Code: H4-00
• Description: Heat roller abnormally low temperature
  When the temperature does not reach 155°C within 55 sec after turning on the power, or when it falls under 145°C during printing, or when it falls under 100°C during pre-heating
• Causes: Thermistor failure Heater lamp failure MCU PWB failure Thermostat failure Power supply failure Interlock switch failure

• Code: L1-00
• Description: Mirror base feed trouble
  The mirror home position (MHPS) does not turn off though the feed operation is completed during mirror initial operation after turning on the power. The mirror home position (MHPS) does not turn off during shading operation. The mirror home position (MHPS) does not turn on when the mirror base is returned for the specified time after copy feed is started and SPF scanning position shift is performed.
• Causes: Mirror unit defect Mirror home position sensor defect MCU PWB defect Scanner wire disconnection

• Code: L3-00
• Description: Mirror base return trouble
  The mirror home position (MHPS) does not turn on though the mirror base returning is completed during mirror initial operation after turning on the power. The mirror home position does not turn on when the mirror is returned to the home position during shading. The mirror home position (MHPS) does not turn on when the mirror base returning is completed for the specified time (about 6 sec) after copy return start.
• Causes: Mirror unit Mirror home position sensor defect MCU PWB defect Scanner wire disconnection