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New T Coat thermal printheads with 3x the abrasion resistance of normal coats

Overview | Key Feature 1 | Key Feature 2 | Key Feature 3 | Lineup

New T Coat thermal printheads with 3x the abrasion resistance of normal coats

Overview

Using relatively inexpensive thermal paper has been shown to shorten the lifetime of the printhead due to the relatively abrasive surface conditions, resulting in abnormal wear, scratching, and electrolytic corrosion. In answer to this ROHM developed a protective film using a hard substance. Dubbed 'T Coat', it provides 3 times the abrasion resistance of normal coats.
The result is lower maintenance efforts and costs and compatibility with an even greater variety of thermal media. In addition, the head configuration is identical to conventional products, eliminating the need for design modifications while enabling drop-in replacement.

Cross-sectional Diagram of Heat Element

Key Feature 1 : 3x higher greater resistance

The new T Coat delivers 3 times the abrasion resistance of normal coats, ensuring less wear for longer print life while enabling compatibility with inexpensive abrasive thermal paper.
Abrasion Comparison (Real World Continuous Print Test) Abrasion Life Comparison

Key Feature 2 : Improved anti-scratch characteristics

The new coating provides superior resistance to scratching and heat element damage compared with conventional products, resulting in a significantly lower dead dot occurrence rate.

 Scratch Test (Surface of Heat Element)

Key Feature 3 : 15% higher energy savings

Improved thermal conductivity results in greater heat transfer to the thermal paper, making color printing possible with less energy (15%* less).

* Measurements taken using 24V POS thermal printheads
 Energy-saving effect

Lineup

■DF Series
Part No. Resolution (dpi) Printing Width (mm) Dot Count (dots) Lifetime
(Printing Distance) (km)
KD2002-DF20A 203 56 448 150
KD2003-DF20A 203 80 640
KD2004-DF20A 203 104 832
KD3002-DF20A 300 54.2 640
KD3003-DF20A 300 81.3 960
KD3004-DF20A 300 108.4 1280

■DG Series
Part No. Resolution (dpi) Printing Width (mm) Dot Count (dots) Lifetime
(Printing Distance) (km)
KD2002-DG20A 203 56 448 150
KD2003-DG20A 203 80 640
KD2004-DG20A 203 104 832

Related Information

■NEWS

 • 
 ROHM Thermal Printhead Delivers Long Service Life on All Thermal Recording Paper Types

■New Product Bulletin

 • 
 T Coat High Durability Thermal Printheads
(PDF:924KB)
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