ribbon-endml5590

Fix OKI ML5590 error ribbon end: Troubleshooting

The OKI ML5590 error ribbon end triggers when the print head senses no ink ribbon or lack of tension. When users ask why does my OKI ML5590 say ribbon end?, they are usually at the end of their consumable life. Quick replacement is key to protecting the delicate print head pins.

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Common causes

  • 1Empty ink ribbon cartridge.
  • 2Mechanical jam inside the ribbon housing.
  • 3Tension failure after installation.
  • 4Defective sensor mechanism.

Solutions

Diagnóstico rápido

Prints fade significantly or the printer stops with a clear error warning. The cartridge is usually empty or the mechanism has jammed.

Solución paso a paso

  1. Open cover: Lift the top access panel to reach the ribbon cartridge.
  2. Remove cartridge: Release the tabs and lift the used cartridge out.
  3. Install new: Insert the new cartridge and guide the ribbon across the print head.
  4. Tighten: Use the knob on the cartridge to remove ribbon slack.

Prevención y mantenimiento

Check the ribbon tension weekly. Never use recycled/refilled ribbons that might leave debris in the print carriage.

Cuándo llamar a un técnico

If the error continues after replacing the ribbon with a new original unit, the ribbon-detection sensor may be faulty.

Ficha técnica del equipo

  • Technology: 24-pin matrix
  • Consumible: Original 40622601
  • Efficiency: 4M characters
  • Replacement: User-serviceable
  • Reliability: High
  • Drivers / firmware oficial

Steps to follow

  1. 1

    Open cover

    Lift the top access panel to reach the ribbon cartridge.

  2. 2

    Remove cartridge

    Release the tabs and lift the used cartridge out.

  3. 3

    Install new

    Insert the new cartridge and guide the ribbon across the print head.

Frequently asked questions

The printer has reached the end of the ribbon cycle or the sensor cannot detect proper tension.

No, printing without an ink ribbon causes direct friction on the print head needles, potentially destroying the head.

Use genuine OKI 40622601 ribbons to protect the print head pins and ensure best print density.

Check ribbon tension weekly and ensure the cartridge is correctly seated in its holder.

Fix OKI ML5590 error ribbon end: Troubleshooting | Vimazdev