err-07PM43 II

Honeywell PM43 II error err-07: Sensor failure

The Honeywell PM43 II error err-07 is a warning of detected failure in the optical media sensors. This error prevents the printer from determining where one label ends and the next begins, halting the printing process. Fixing the err-07 on the PM43 II model typically requires cleaning the gap or black mark sensors and performing a recalibration from the device menu.

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Common causes

  • 1Dust buildup on the optical sensor lens.
  • 2Sensor holder misalignment relative to media width.
  • 3Use of transparent labels that confuse the optical sensor.
  • 4Electronic failure in the sensor's emitter/receiver component.

Solutions

Quick Diagnosis

If the printer feeds labels continuously without stopping or shows err-07 at startup, the optical sensors are blocked by dust or misaligned. This often happens after a severe jam or changing to media with different transparency.

Step-by-Step Solution

  1. Sensor access: Open the printhead and locate the sensors in the media holder base.
  2. Air cleaning: Use compressed air to remove dust particles from the sensor lens.
  3. Deep cleaning: Wipe the sensor lens with a soft cloth lightly dampened with neutral cleaner.
  4. Calibration: Access the 'Setup' > 'Media' > 'Calibrate' menu to reset detection levels.

Prevention and Maintenance

Clean the printer interior when changing every roll to prevent paper accumulation from contaminating the sensor lenses.

When to Call a Technician

If the error persists after manual calibration, the LED sensor light may have burned out, requiring professional component replacement.

Device Technical Specifications

  • Technology: Reflective and transmissive optical sensors.
  • Speed: High-speed programmable.
  • Connectivity: USB, industrial Ethernet.
  • Consumable: Die-cut labels, black mark, continuous.
  • Recommended Use: High-volume label printing environments.
  • Official Drivers / Firmware

Frequently asked questions

The solution is usually cleaning the optical sensor lenses with compressed air and running a recalibration from the front panel menu.

No, without calibration the system won't detect the 'gap' between labels, leading to out-of-registration printing.

Labels with metallic liners or very thick backings sometimes interfere with optical sensor readings.

A quick cleaning is recommended every time you change the label roll.