930T654dn

Lexmark T654dn error 930: Printhead failure

The Lexmark T654dn error 930 is a printhead communication code indicating the main logic board cannot signal the print engine. Users frequently ask how to fix error 930 Lexmark T654dn, usually linked to oxidized electrical contacts between the printhead and the controller.

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Common causes

  • 1Contact corrosion
  • 2Cable disconnected
  • 3PCB failure
  • 4Toner debris

Solutions

Diagnóstico rápido

If the printer hangs on start-up with error 930, check the internal wiring harness near the print engine.

Solución paso a paso

  1. Turn off and unplug.
  2. Re-seat toner cartridge.
  3. Clean copper contacts with isopropyl alcohol.
  4. Restart the machine.

Prevención y mantenimiento

Use original Lexmark toner to prevent toner particles from creating conductive debris on electrical contacts.

Cuándo llamar a un técnico

If cleaning the contacts does not resolve the 930 error, the main print engine board is likely damaged.

Ficha técnica del equipo

  • Technology: Monochrome Laser.
  • Speed: 55 ppm.
  • Connectivity: Ethernet/USB.
  • Consumables: T654 series.
  • Usage: Enterprise.
  • Official Drivers

Steps to follow

  1. 1

    Power reset

    Power off and unplug the printer.

  2. 2

    Check connections

    Re-seat the toner/drum assembly.

  3. 3

    Test

    Power on and print test page.

Frequently asked questions

Try re-seating the toner/drum assembly and cleaning contact points. Persistent errors require service.

It is a sign of a hardware communication fault in the printhead assembly.

Use T654 series original toner.

Use quality paper and avoid cheap third-party supplies.