5004PX940 II

Honeywell PX940 II Error 5004: RFID Encoding Fix

Honeywell PX940 II error 5004 signifies an RFID write-verify failure. The printer stopped because it couldn't confirm the tag data. Finding a fix for Honeywell PX940 II error 5004 requires adjusting the physical setup.

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Common causes

  • 1Damaged RFID tag chip.
  • 2Misaligned RFID antenna.
  • 3Insufficient write power.
  • 4Metallic shielding near the printhead.

Solutions

Diagnóstico rápido

The error appears during the encoding step in the print cycle; the printer stops immediately.

Solución paso a paso

  1. Check antenna alignment.
  2. Adjust encoding power settings.
  3. Ensure no nearby metallic interference.
  4. Re-print a batch.

Prevención y mantenimiento

Keep the printer surface free of metallic objects. Periodically update the RFID firmware.

Cuándo llamar a un técnico

If consistent across multiple tag types, the RFID module may be faulty.

Ficha técnica del equipo

  • Technology: Thermal with RFID verification
  • Speed: Up to 14 ips
  • Connectivity: USB, Ethernet, WiFi, Bluetooth
  • Capacity: High-volume
  • Compatible consumables: UHF Gen2 labels
  • Recommended use: Logistics and manufacturing
  • Drivers / official firmware

Steps to follow

  1. 1

    Check tag

    Ensure the RFID tag is compliant.

  2. 2

    Change power

    Adjust write power in settings.

  3. 3

    Retry

    Print again.

Frequently asked questions

Adjust the antenna position or increase encoding power in the printer menu.

Usually not, if the encoding failed, the tag is likely invalid.

Standard UHF EPC Gen2 labels.

Ensure media alignment is perfect.