head-tempB-EX4T1

Toshiba B-EX4T1 error Head Temp: Temperature failure

The Toshiba B-EX4T1 error Head Temp is a thermal protection triggered when the print head reaches temperature levels above allowed limits. This code appears frequently in mass print jobs with high darkness settings. The solution is to let the equipment cool down. It is a device designed for high productivity.

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Common causes

  • 1Darkness setting is too high.
  • 2Print speed is too slow for the required volume.
  • 3Dirt buildup on the print head surface.
  • 4Poor ventilation around the device.

Solutions

Quick Diagnosis

If the panel displays 'Head Temp' in red, the printer has locked up to prevent permanent damage to the thermal dots. Check if the print feels excessively dark or if the device is in a poorly ventilated area.

Step-by-Step Solution

  1. Pause the print job immediately.
  2. Power off the unit and allow it to cool for 30 minutes.
  3. Reduce the 'Darkness' setting in the driver configuration.
  4. Ensure no dirt is blocking the head compartment ventilation.

Prevention and Maintenance

Configure print speed and head temperature to balanced values based on the media type. Clean the print head daily with the official kit, as toner or ribbon residues act as thermal insulators, forcing the head to work harder. Ensure good ambient ventilation.

When to Call a Technician

If the warning appears upon turning the unit on without prior printing, the print head temperature sensor might be permanently failing, requiring replacement.

Device Technical Sheet

  • Technology: Thermal Transfer
  • Speed: 14 ips
  • Interface: Ethernet / USB
  • Consumables: B-EX Series ribbon
  • Use: Industrial
  • Drivers
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