c3702bizhub 4402

Konica Minolta bizhub 4402 error C3702: Fix

The Konica Minolta bizhub 4402 error C3702 signals an issue with the fusing unit's temperature. It occurs when the heater fails to reach operational levels. This error locks the machine for safety.

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Common causes

  • 1Heater lamp failure.
  • 2Thermostat trigger.
  • 3Power board issue.
  • 4Pressure roller damage.

Solutions

Diagnóstico rápido

C3702 appears if the heater lamp fails to warm up or the thermistor is faulty.

Solución paso a paso

  1. Unplug for 15 minutes to reset.
  2. Check power source for stability.
  3. Request technician if the unit fails to initialize.

Prevención y mantenimiento

Use stable power supplies and original consumables to extend fusor life.

Cuándo llamar a un técnico

Unit replacement requires a certified technician to avoid damage.

Ficha técnica del equipo

  • Technology: Monochrome Laser Printer.
  • Speed: 44 ppm.
  • Connectivity: USB/Ethernet.
  • Compatible Consumables: 4402 series toner.
  • Recommended Use: Enterprise.
  • Official drivers / firmware

Steps to follow

  1. 1

    Power off

    Disconnect from the power outlet.

  2. 2

    Thermal reset

    Wait for 15 minutes.

  3. 3

    Test run

    Restart and check code status.

Frequently asked questions

The fusing unit cannot reach the required temperature.

No, the printer is locked until the error is cleared.

The original series 4402.

Yes, every 100,000 pages.