General Technology Company, Ltd.
General Technology Company, Ltd.Understanding Thermal Inkjet is as
Easy as One-Two-Three!
1. How Thermal Injet Works--A New Animation Video from HP (link to
the HP website and scroll down to "What's New")
2. The Big Picture of Inkjet Technology:
Total Cost of Ownership of HP Hardware vs. Other Inkjet
Courtesy of HP, "Counting Costs" Brochure
3. Other Myths about Thermal Inkjet Printing:
As a continually evolving technology, thermal inkjet (TIJ)
technology has been the subject of many myths, which may be
understandable. After all, traditional methods of printing simply
cannot compete with the speed, accuracy, versatility, and short run
cost-effectiveness of digital printing technologies. As a pioneer
and an industry leader, HP and General Technology Company are in a
unique position to dispel many myths about TIJ technology.
Common myths about thermal inkjet (TIJ) technology
TIJ boils the ink.
Thermal inkjet heads don't last.
Only TIJ needs special ink.
The choice you make between TIJ or piezo will determine all aspects
of your system viability.
Myth: TIJ boils the ink.
Reality: Less than 0.3% of the ink is heated, and full print speed
results in a 30 C temperature rise.
Myth: Thermal inkjet heads don't last.
Reality: The tradeoff is cost vs. life expectancy, and we have
decided to use low-cost replaceable heads. The benefits of this
trade-off to you include:
Higher reliability = higher uptime
Efficient high-volume production
Lower drive costs as a result of integrated drive heads and low
drive energy requirements
Consistent image quality the last image out of the cartridge will
equal the superb quality of the first image produced
Myth: Only TIJ needs special ink.
Reality: All inkjet technology requires special ink. Why?
The ink must be compatible with the printhead material, and there
is a wide choice of thermal inkjet dye and pigment-based inks
available. Thermal inkjet ink must be a low boiling-point fluid. A
wide variety of fluids have been used successfully in the industry.
HP is proud to be the first to market water-resistant black dye
inks; bright color inks that perform well on all papers; pigmented
black inks that deliver superior opaque depth, sharp quality and
waterfastness; and photo inks that have archival properties
suitable for protecting the most precious and important memories.
Myth: The choice you make between TIJ or piezo will determine all
aspects of your system viability.
Reality: In fact, it's a balancing act; sometimes a trade-off. You
must determine which offers the most for your product
implementation. HP believes that the most important benefits of TIJ
are the value and uniform performance delivered by the complete
printing system. These strengths include:
Image quality and text quality
Ease of use
Ease of connectivity
Initial cost of purchase
Total acquisition cost
TIJ enables higher performance by excelling at each point in the
printing system. A comparison of the system implications between
TIJ and piezo underscores the HP inkjet reliability advantage:
TIJ drop ejection integrity is not sensitive to small bubbles in
the firing chamber, while piezo mechanical stability is extremely
sensitive to small air bubbles, similar to a brake system in an
TIJ has a natural release mechanism and a controlled flushing
action, while piezo relies on wasteful flushing of the system with
ink to purge trapped air.
For more information about HP's exciting activities in the field of
industrial printing, please click on the HP logo. Enjoy your
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