390C844dnw

OKI C844dnw 390 Error: Fix Guide

The OKI C844dnw error 390 indicates a drum unit issue. Why does my OKI C844dnw show error 390? Usually caused by a jammed drum or sensor signal failure.

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Common causes

  • 1Jammed drum
  • 2Dirty sensor
  • 3Motor failure
  • 4Electrical issues

Solutions

Diagnóstico rápido

Check drum unit.

Solución paso a paso

  1. Remove drums. 2. Clean sensor. 3. Reinstall.

Prevención y mantenimiento

Regular maintenance.

Cuándo llamar a un técnico

If failure persists.

Ficha técnica del equipo

Speed: 36ppm. Drivers here.

Frequently asked questions

Drum unit error.

Replace unit.

Original OKI drum.

Clean sensors.