c7990FS-4026DN

Fixing Kyocera FS-4026DN error C7990

Kyocera FS-4026DN error C7990 signifies a full waste toner container. Replacing this part ensures consistent print quality and prevents messy toner spills inside the printer mechanism.

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Common causes

  • 1Waste container capacity reached.
  • 2Sensor failure.
  • 3Poor quality toner residue.
  • 4Container mis-seated.

Solutions

Diagnóstico rápido

Printer halts and indicates waste container is full.

Solución paso a paso

  1. Open front access panel.
  2. Remove the old waste toner unit.
  3. Install a new WT-310 unit.
  4. Close panel.

Prevención y mantenimiento

Do not empty the container; always use a new unit to avoid inhaling fine particles.

Cuándo llamar a un técnico

If sensor fails after replacing, internal optics need cleaning.

Ficha técnica del equipo

  • Consumable: WT-310
  • Support: https://www.kyoceradocumentsolutions.com/support
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