c7990ECOSYS M3860idnf

Kyocera ECOSYS M3860idnf error C7990: Troubleshooting

The Kyocera ECOSYS M3860idnf error C7990 indicates the waste toner bottle is full. Why does my Kyocera ECOSYS M3860idnf show error C7990? The system requires a replacement to continue safe operation.

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Common causes

  • 1Waste toner bottle reached capacity.
  • 2Sensor obstruction.
  • 3Low-quality toner leading to excessive waste.
  • 4Optical sensor failure.

Solutions

Diagnóstico rápido

Error C7990 activates when the waste sensor detects the bin is at capacity.

Solución paso a paso

  1. Locate the waste bottle.
  2. Remove the bottle.
  3. Replace with a new unit.
  4. Restart the printer.

Frequently asked questions

This error signals that the waste toner recovery unit is full.

Replace the waste toner bottle immediately. Do not attempt to reuse it, as it may cause spills.

The waste toner bottle (Waste Toner Bottle).

It is a preventative maintenance warning; however, ignoring it can lead to severe contamination inside the device.