c-2551bizhub PRESS C1085

Konica Minolta bizhub PRESS C1085 Error C-2551 Fix

The Konica Minolta bizhub PRESS C1085 error C-2551 indicates a malfunction within the toner supply motor assembly. Why does my bizhub PRESS C1085 show error C-2551? The system has detected that the motor is drawing too much current or not rotating as expected, typically due to a physical jam in the toner transport path.

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Common causes

  • 1Toner clogging within the internal transport tube.
  • 2Motor failure due to wear and tear.
  • 3Loose wire harness to the toner hopper motor.

Solutions

Diagnóstico rápido

If your bizhub PRESS C1085 stops with C-2551, the toner supply is likely jammed. Listen for clicking sounds from the toner hopper area, which suggest a mechanical resistance in the motor gears.

Solución paso a paso

  1. Switch off the main power and restart after 30 seconds.
  2. Remove and reseat all toner bottles, checking for blockages in the intake.
  3. If motor failure persists, enter service mode to test toner supply motor rotation.
  4. Resume printing and monitor the machine for 5 minutes.

Prevención y mantenimiento

Regularly clean the toner intake areas. Use genuine Simitri HD toner to ensure proper viscosity and flow, minimizing stress on the toner motors.

Cuándo llamar a un técnico

Contact professional services if the error persists after checking for physical obstructions, as the toner motor or its power driver may require professional replacement.

Ficha técnica del equipo

  • Technology: High-volume color laser.
  • Speed: 85 ppm.
  • Connectivity: Gigabit Ethernet.
  • Capacity: High-capacity paper trays.
  • Compatible Consumables: Simitri HD CMYK Toner.
  • Usage: Commercial print production.
  • Official Drivers / firmware

Steps to follow

  1. 1

    Power cycle

    Switch off the main power and restart after 30 seconds.

  2. 2

    Check toner bottles

    Remove and reseat all toner bottles, checking for blockages in the intake.

  3. 3

    Service mode

    If motor failure persists, enter service mode to test toner supply motor rotation.

  4. 4

    Final check

    Resume printing and monitor the machine for 5 minutes.

Frequently asked questions

The toner supply motor is failing to spin or is being blocked.

Do not attempt to print while this error is active, as it can damage the developer unit.

Use Simitri HD polymerized toner meant for the C1085 production press.

Clean sensors regularly and keep a stable power supply.