930T642n

Lexmark T642n Error 930: Image Unit Issue

The Lexmark T642n error 930 flags an issue with the printer's image unit assembly. If the printer cannot detect the image unit, it will halt all print tasks. Follow this guide to resolve the Lexmark T642n error 930 by checking connections and component health.

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Common causes

  • 1Dirty electrical contact points.
  • 2Faulty image unit smart chip.
  • 3Incorrect unit seating.
  • 4Firmware miscount of consumable life.

Solutions

Diagnóstico rápido

If the machine displays 930, the electrical connection between the image unit and the main body is likely compromised. A quick reseat often fixes this.

Solución paso a paso

  1. Remove unit: Open front door and take out the toner/image unit combo.
  2. Clean contacts: Carefully wipe the electrical contacts on both the unit and the printer frame.
  3. Reinstall: Reinsert the unit securely until it locks into place.

Prevención y mantenimiento

Keep the internal area clean and free of excess toner dust which can interfere with electrical sensor readings.

Cuándo llamar a un técnico

If the error stays even after testing with a replacement image unit, the printer’s internal communication bus is faulty.

Ficha técnica del equipo

Lexmark T642n Error 930: Image Unit Issue | Vimazdev