print-head-overheatTM-U220B POS

Epson TM-U220B POS error print head overheat: Fix

The Epson TM-U220B POS error print head overheat is a protective shutdown triggered by high print head temperatures. Why does my Epson TM-U220B POS show error print head overheat? Continuous printing of dense data without pause often causes this.

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Common causes

  • 1High-density printing
  • 2Poor ventilation
  • 3Sensor defect
  • 4High ambient temp

Solutions

Quick Diagnosis

The printer automatically stops to save the head coils from damage. Do not bypass this state.

Step-by-step Solution

  1. Power off. 2. Cool down. 3. Inspect.

Prevention and Maintenance

Ensure the unit has enough space for cooling. Break up very long print tasks.

When to call a technician

If the printer reports heat error immediately upon startup, the temperature sensor is likely malfunctioning.

Technical Specifications

Steps to follow

  1. 1

    Power off

    Shut down and unplug the printer.

  2. 2

    Cool down

    Allow to sit in a well-ventilated area for 20 minutes.

  3. 3

    Inspect

    Ensure nothing is blocking the airflow vents.

Frequently asked questions

The thermal sensor tripped because the device is printing heavily or lacks airflow.

It is a safety shutdown; ignoring it will destroy the print head coils.

Original ERC-38.

Avoid batch printing large files at once and keep the area around the printer clear.