SGIA Journal Graphic November/December 2016 - 23
feature
Inkjet Printhead Developments
The inkjet printing process involves
many essential components including ink
and fluids, and their delivery systems,
substrates, coatings, driver boards and
software. The inkjet printhead sits in the
center of the process, delivering ink or
other fluids to their print receiver. The
characteristics and capabilities of the
printhead determine the resolution,
accuracy, speed, chemistry and viscosity of
deposited materials.
Some inkjet printhead manufacturers
have employed micro-electro-mechanical
systems (MEMS) to fabricate parts of inkjet
for almost four decades. HP* used MEMS
techniques to fabricate parts of its early
thermal inkjet printheads (TIJ). Other early
TIJ makers including Canon*, Lexmark,
and Olivetti* adopted MEMS techniques
to make components for their heads. A
number of manufacturers of industrial and
high-performance inkjet printheads -
including piezo inkjet (PIJ) manufacturers
such as Fujifilm Dimatix*, Xaar*, KonicaMinolta, Epson* and Ricoh* - have
joined TIJ OEMs in incorporating MEMS
components into their industrial PIJ heads.
The grow t h of competition for
printhead manufacturing is advancing
de velopment to match ma rket
applications' requirements. Competition
among manufacturers has stimulated
research and development for ways to
overcome issues that have limited inkjet's
capabilities. MEMS manufacturing
techniques have enabled printhead
manufacturers to produce the higher
resolution, print speed and accuracy
that meet the requirements of a growing
number of applications. They have
advanced the performance of inkjet to
be able to compete successfully with
analog printing methods for print speed,
reliabilit y, minima l environmenta l
impact and cost effectiveness.
The entry into the world of the extremely
small with the use of micro- and nanoelectro-mechanical-systems has also required
manufacturers to refine their quality controls
even beyond Six-Sigma standards.
By Vince Cahill, Owner, VCE Solutions; and Steve Hatkevich, Director of
Research and Development, American Trim
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November/December 2016 | 21
SGIA Journal Graphic November/December 2016
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