Label Length ErrorHoneywell PX940V

Honeywell PX940V Label Length Error: How to Calibrate

The 'Label Length Error' on the Honeywell PX940V indicates the printer cannot correctly detect the start or end of your labels. This often occurs when switching label types without re-calibrating the sensor, or when the media settings in your software don't match the physical label size. You can usually resolve this by running the printer's media calibration process.

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Common causes

  • 1Sensor misalignment: The detection sensor is pointing outside the path of the gap.
  • 2Incorrect software settings: The printer driver is configured for a different label height.
  • 3Media compatibility: Labels lack the required contrast or gap for the optical sensor.
  • 4Contaminated sensors: Adhesive or paper dust is blocking the sensor's optical window.

Solutions

Diagnóstico rápido

This error occurs when the printer fails to register the media gap or mark. Check for paper jams, verify that the media is correctly seated, and confirm that your sensor is positioned correctly over the label 'gap' or 'black mark' position.

Solución paso a paso

  1. Load media properly using the adjustment guides on the printer floor.
  2. Adjust the sensor position to match the gap or notch location of your specific label size.
  3. Run media calibration from the printer's touchscreen under 'Media Settings' to re-teach the sensor.
  4. Update driver settings to ensure the design software reflects the exact label dimensions.

Prevención y mantenimiento

Perform a calibration every time you change media types. Clean the sensor path of any adhesive residue, as sticker residue can block the light path and cause detection errors.

Cuándo llamar a un técnico

If the printer fails to detect media after multiple calibration attempts, the physical gap sensor may be damaged or obscured. Professional service is required to replace the sensor or the main detection assembly.

Ficha técnica del equipo

  • Technology: Industrial thermal transfer label printer
  • Speed/Performance: Up to 350 mm/s
  • Connectivity: USB, Ethernet, RS-232, Host USB
  • Media Capacity: Up to 114 mm label width
  • Compatible consumables: Roll-fed adhesive labels (Gap/Notch/Black Mark)
  • Recommended use: Logistics and distribution labeling
  • Official drivers / firmware: https://sps.honeywell.com/us/en/support/technical-support/printers/px940-industrial-printer

Steps to follow

  1. 1

    Check media path

    Ensure the label stock is centered using the PX940V adjustment wheels.

  2. 2

    Locate sensor

    Move the physical sensor arm until it detects the gap in your specific label layout.

  3. 3

    Auto-calibration

    Navigate to Settings > Media > Calibrate to allow the printer to auto-detect the gaps.

  4. 4

    Test print

    Print a test label to ensure it feeds to the correct start position.

Frequently asked questions

The printer is likely not calibrated to your specific label size. Perform a media calibration via the control panel to synchronize the sensor with the new label stock.

No, you only need to calibrate when changing the media type or size, or if the printer has been moved or serviced.

High-quality industrial adhesive labels with clear, consistent gaps or marks are recommended for reliable detection by the PX940V sensor.

It can lead to printing on the label liner, which deposits adhesive onto the printhead, requiring a thorough cleaning to prevent print defects.