c3501bizhub C35

Konica Minolta bizhub C35 error C3501: Solution

The Konica Minolta bizhub C35 error C3501 signals a rotation or torque problem in the fuser unit motor. This code indicates that the controller board does not detect proper rotation, which prevents the machine from reaching working temperature. It is generally due to a mechanical jam in the fuser or a drive motor failure.

1 views

Common causes

  • 1Excessive friction or blockage in the fuser gears.
  • 2Fuser motor rotation sensor failure.
  • 3Physical paper jam inside the unit.
  • 4Wear and tear of fuser roller bearings.

Solutions

Quick Diagnosis

Error C3501 stops the machine before entering ready mode. If you hear a grinding or screeching noise upon startup, it is a sign that the fuser gears are blocking the motor. Do not force a restart if the noise persists.

Step-by-step Solution

  1. Power off: Switch off the main power and wait 20 minutes for the fuser area to dissipate all accumulated heat.
  2. Check fuser: Manually check if the fuser roller rotates freely. If it is jammed, do not attempt to force it.
  3. Restart: Turn the machine on and observe if the rotation sensor registers normal motor movement.
  4. Clean contacts: Ensure that the fuser unit connectors are clean and free of toner debris.

Prevention and Maintenance

Avoid printing low-quality labels that may peel off and jam the fuser unit. Perform preventive cleaning of the fuser unit and ensure the equipment is level so that motor torque is distributed correctly. Using original TNP-22 toner prevents sticky residue from clogging the rollers.

When to Call a Technician

If the C3501 error continues to appear after verifying the rollers rotate freely, the fuser drive motor or the speed sensor (encoder) requires professional replacement.

Ficha técnica del equipo

  • Technology: Color laser printer
  • Speed/Performance: 31 ppm
  • Connectivity: LAN, USB
  • Feed capacity: 350 sheets
  • Compatible consumable: TNP-22 Toner
  • Recommended use: Mid-office environments
  • Official drivers / firmware

Steps to follow

  1. 1

    Power off

    Switch off the main power and wait 20 minutes for the fuser area to dissipate all accumulated heat.

  2. 2

    Check fuser

    Manually check if the fuser roller rotates freely. If it is jammed, do not attempt to force it.

  3. 3

    Restart

    Turn the machine on and observe if the rotation sensor registers normal motor movement.

Frequently asked questions

Code C3501 indicates the fuser motor is not reaching the required rotational speed during startup as detected by the firmware.

It is not recommended, as the motor could overheat or strip gears if forced rotation is attempted.

It uses TNP-22 toner cartridges; it's recommended to check the transfer unit condition periodically.

A comprehensive cleaning of the fuser system is suggested every 80,000 prints by technical staff.