ribbon-end-errML5790eco

OKI ML5790eco Error Ribbon End: Ribbon Replacement

The OKI ML5790eco error ribbon-end-err indicates that the printer detects no ribbon movement. This safety feature stops the print head from firing against the platen without ink protection.

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Common causes

  • 1Empty ribbon
  • 2Sensor blockage
  • 3Mechanical jam
  • 4Improper install

Solutions

Quick Diagnosis

Check if the ribbon cartridge is seated properly and that the cloth strip is tensioned correctly.

Step-by-Step Solution

  1. Open top cover.
  2. Remove empty ribbon cartridge.
  3. Install new ribbon.
  4. Rotate tension knob until ribbon is taut.

Prevention and Maintenance

Change ribbons as soon as print fades to protect the pins.

When to Call a Technician

If the new ribbon doesn't clear the error, the rotation sensor may be obstructed.

Equipment Data Sheet

  • Tech: 24-pin Matrix
  • Consumible: ML5790 Ribbon
  • Drivers
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