ERR_PAPER_OUTRP4

Honeywell RP4 ERR_PAPER_OUT Error: Troubleshooting Guide

The ERR_PAPER_OUT code on the Honeywell RP4 printer signals that the paper sensor cannot detect media or the roll is empty. This safety feature pauses operations to prevent the thermal printhead from burning against the platen roller. Resolving this usually involves reloading the media and cleaning the optical sensor path.

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Common causes

  • 1Sensor obscured by paper dust or residue.
  • 2Media roll installed in the wrong orientation (face down).
  • 3Incompatible media thickness preventing proper sensor triggering.
  • 4Damaged sensor flag or mechanical latch failure.

Solutions

Diagnóstico rápido

This error is identified by a blinking red LED and an on-screen prompt. Inspect the paper compartment for debris, misaligned media, or a mispositioned sensor path that prevents accurate detection of the paper edge.

Solución paso a paso

  1. Release the latch on the side of the printer to open the top cover.
  2. Remove the existing roll and inspect the internal chamber for adhesive residue.
  3. Load a new thermal roll ensuring it is seated correctly over the optical sensor.
  4. Snap the cover shut and verify that the red error light turns off, indicating the sensor is reading the media.

Prevención y mantenimiento

  • Sensor care: Clean the internal optical sensor regularly with 90% isopropyl alcohol and a lint-free swab.
  • Storage: Keep paper rolls in a cool, dry place to prevent moisture-related feed issues.
  • Usage: Avoid using low-quality generic media that leaves excessive dust or adhesive buildup on the feed path.

Cuándo llamar a un técnico

If the error persists after proper cleaning and media installation, the internal sensor hardware may have failed. Contact your Honeywell representative for a professional repair or warranty claim.

Ficha técnica del equipo

  • Technology: High-speed thermal printing.
  • Performance: Up to 5 ips (inches per second).
  • Connectivity: Bluetooth 4.0, Wi-Fi 802.11 a/b/g/n, USB 2.0.
  • Feed Capacity: Rolls up to 67 mm outer diameter.
  • Consumables: 104 mm wide thermal paper rolls (RP4 series).
  • Recommended Use: Mobile warehouse, logistics, and retail.
  • Official drivers / firmware

Steps to follow

  1. 1

    Open Compartment

    Press the side release lever to unlock the top lid.

  2. 2

    Clean Sensor

    Wipe the optical sensor area with a lint-free cloth.

  3. 3

    Insert Media

    Position the paper roll so the leading edge sits above the sensor.

  4. 4

    Confirm Status

    Close the lid and ensure the error LED is extinguished.

Frequently asked questions

It is not dangerous but indicates the printer is in a 'wait' state and cannot function until the media is replaced.

It requires immediate attention as your printing workflow will be halted until the paper supply is restored.

You should use original 104mm Honeywell thermal paper rolls compatible with the RP4 series to ensure sensor reliability.

Cleaning the sensor area during every media change is the best practice to prevent recurring paper-out errors.