Sharp AL1611

• 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