err-055pm45-ii

Honeywell PM45 II error ERR-055: Solution Guide

The Honeywell PM45 II error ERR-055 is a critical hardware code indicating a printhead communication failure. This issue arises when the printhead is not detected by the mainboard or experiences an internal short circuit. Resolving the ERR-055 error in the PM45 II requires a careful inspection of the connectors and the printing surface.

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Common causes

  • 1Burnt-out printhead.
  • 2Loose printhead connector due to vibration.
  • 3Excessive adhesive residue buildup.
  • 4Fault in the printhead controller circuit.

Solutions

Quick Diagnosis

If it appears on startup, the printhead is poorly connected or damaged. Check if any labels are stuck to the printhead, as this interferes with temperature readings.

Step-by-Step Solution

  1. Turn off the printer and open the main cover.
  2. Clean the printhead surface with isopropyl alcohol.
  3. Check that the flat ribbon cables connecting the head are securely in place.
  4. Restart the device.

Prevention and Maintenance

Clean the printhead every time you change the ribbon or roll. Never use metal objects to remove stuck labels, as this will damage the filaments.

When to Call a Technician

If the ERR-055 error persists after cleaning the head, the thermal printhead has reached the end of its life or is defective and must be replaced.

Technical Data