600B930dn

OKI B930dn error 600: Toner detection failure guide

The OKI B930dn error 600 indicates that the printer is failing to identify the toner cartridge correctly. This is almost exclusively caused by communication issues between the cartridge's internal chip and the printer's mainboard contacts. Follow this guide to clear the error.

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Common causes

  • 1Dust on the cartridge chip preventing data transfer.
  • 2Cartridge physical misalignment in the drum cradle.
  • 3Manufacturing defect in the toner cartridge chip.
  • 4Bent pins in the internal connector of the printer unit.

Solutions

Diagnóstico rápido

Error 600 usually presents as 'Toner Invalid'. If the message appeared immediately after cartridge replacement, it is likely the cartridge isn't fully locked into position or the contact pins are dirty.

Solución paso a paso

  1. Remove cartridge: Open the front panel and pull out the toner cartridge.
  2. Clean contacts: Use a dry, lint-free cloth to gently wipe the gold contact chips on the cartridge.
  3. Reinstall: Insert the cartridge firmly back into its slot, ensuring the locking lever is secured.

Prevención y mantenimiento

Avoid handling the gold chip area with fingers, as oil residue can interfere with data transfer. Keep the internal compartment clean of dust; excessive dust can create insulation between the contacts.

Cuándo llamar a un técnico

If replacing the toner with a new, tested original unit does not fix the error, the printer's internal contact block may be damaged and requires a technician's inspection.

Ficha técnica del equipo

  • Technology: Corporate monochrome laser printer.
  • Print speed: 50 ppm.
  • Connectivity: Ethernet, USB.
  • Input capacity: 2000-sheet total potential.
  • Compatible consumables: B930 series black toner.
  • Usage: High-volume work environments.
  • Official drivers / firmware

Steps to follow

  1. 1

    Remove cartridge

    Remove the toner cartridge from the printer and shake it gently.

  2. 2

    Clean contacts

    Wipe the electrical chips on the cartridge with a dry, lint-free cloth.

  3. 3

    Reinstall

    Firmly insert the cartridge back into the slot until you hear a click.

Frequently asked questions

The printer is unable to communicate with the toner cartridge chip, usually due to poor contact or accumulated toner dust.

Start by cleaning the chip contacts; if the problem remains, the cartridge might be faulty.

It is a minor consumable detection issue that is typically resolved by re-seating the cartridge.

Use original B930 series toner for full chip compatibility and reliable print output.

OKI B930dn error 600: Toner detection failure guide | Vimazdev