*NEWS*XEROX:NEW PRINTHEADS FOR SOLID INK

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*NEWS*XEROX:NEW PRINTHEADS FOR SOLID INK

 user 2006-06-05 at 10:53:00 am Views: 65
  • #15730

    Xerox Scientist Describes Experiments to Optimize Printheads for Solid Ink Printers
    LONG
    BEACH, Calif., JUNE, 2006 — Xerox Corporation’s  next generation of
    solid ink printheads is being designed through a “rapid prototyping”
    process that will speed development, increase product quality and may
    yield useful information for other industries that need to control the
    behavior of fluids on a micro scale, according to a Xerox scientist.In
    a talk being given here today at PhAST 2006, John Andrews, a principal
    scientist in Xerox’s Wilson Center for Research and Technology in
    Webster, N.Y., will discuss “Laser Rapid Prototyping for Designed
    Experiments in Microfluidics.” The annual conference, sponsored by the
    Optical Society of America, presents the latest breakthroughs in laser
    applications, systems and technologies.Andrews is reporting on
    experiments in which he systematically varied the size and shape of a
    printhead nozzle – with an opening one-tenth the diameter of a human
    hair – and other parts of the fluid delivery structure in order to
    optimize the placement of ink droplets that the printhead squirts onto
    paper to form images. He used rapid prototyping, a process that
    integrates Xerox’s modeling and simulation expertise with laser
    micromachining, to produce functioning printheads having desirable
    performance characteristics.That reduced the time required to produce
    the prototype devices to a matter of hours or days compared with as
    much as two months if done by conventional methods.Andrews used a laser
    to micromachine – or drill – a number of inkjet nozzles, each with a
    slightly different shape. By testing the droplet shapes resulting from
    the various openings, he found that he could use the nozzle plate
    thickness and the shape of the nozzle’s barrel to predict how fast the
    droplet would travel.The results from the experiments will enable
    systems engineers to pick a nozzle design that produces the performance
    characteristics desired for the system they are planning. In addition
    to inkjet printers, other applications where a liquid must be forced
    through a tiny opening include spraying materials for biological
    analyses and DNA testing, testing for the presence of chemical agents,
    shooting droplets of solder to bond chips to a circuit board, and
    constructing three-dimensional wax parts models by “printing”
    them.”Nozzle properties are important,” Andrews concludes, “because the
    nozzle is the last interface between the liquid pool and the air.
    Nozzle shape controls the speed and direction at which the drop travels
    as well as its size.”Andrews’ research using laser micromachining for
    rapid prototyping will lead to faster development of next-generation
    solid ink printheads at lower cost. Introduced more than 15 years ago,
    Xerox’s exclusive solid ink technology is an affordable option for
    businesses looking to add color to their documents and has become a
    competitive force in the industry. Solid ink creates brilliant prints
    on a wide range of media, is easy to use and produces 90 percent less
    waste than laser printing.Rapid prototyping one of the reasons Xerox is
    able to quickly bring to market new marking systems that are smarter,
    smaller, simpler and speedier.Xerox Corporation conducts work in color
    science, computing, digital imaging, work practices, electromechanical
    systems, novel materials, and other disciplines connected to Xerox’s
    expertise in printing and document management. The company consistently
    builds its inventions into business by embedding them in Xerox products
    and solutions, using them as the foundation for new business, or
    licensing or selling them to other entities.