HUDSON, NH -- (MARKET WIRE) -- 09/11/09 -- Presstek, Inc. (NASDAQ: PRST), a leading manufacturer and marketer of digital offset printing solutions, today announced that it will be unveiling a brand-new waterless ink optimized for Presstek DI presses at the Print 09 trade show, being held from September 11-16, 2009 at McCormick Place in Chicago.

"Presstek DI-Dry is a proprietary formulation that offers significant benefits for owners of DI presses," said Kathy McHugh, Presstek's Vice President and Chief Marketing Officer. "It has a heavier ink pigmentation density, which means using less ink while achieving truer colors and denser solids -- in effect, getting more miles per gallon. Using less ink also facilitates a faster drying time for faster job turn around. And, in line with Presstek's commitment to environmental sustainability, DI-Dry contains more than 50 percent renewable content, also known as bio-derived raw materials."

Presstek DI-Dry ink will be demonstrated on Presstek 34DI and 52DI-AC digital offset presses at Presstek's Booth 3646 at the Print 09 show. The ink is designed for use on Presstek-branded and Presstek-enabled DI digital offset presses, including the Presstek 52DI and 34DI, as well as the Ryobi 3404 DI and Heidelberg QMDI presses. DI-Dry is designed to stay open in the ink fountains for up to a week, resulting in fewer wash-ups for a more productive pressroom.

In addition to the North American process color set, Presstek DI-Dry inks are available in basic PANTONE(R) colors, special mix PMS, metallic and fluorescent colors, as well as varnishes. "We believe DI owners will find significant value in these new inks as they continue to optimize their operations for higher quality, faster turnaround and improved profitability," added McHugh. "For added convenience, Presstek serves as a single source supplier for all of the DI owner's pressroom needs, including plates, blankets, inks and cleaning products -- all optimized for their specific press."

Presstek DI-Dry inks are available immediately by visiting shop.presstek.com, or calling 800-237-0812.

About Presstek

Presstek, Inc. is a leading manufacturer and marketer of high tech digital imaging solutions to the graphic arts and laser imaging markets. Presstek's patented DI(R), CTP and plate products provide a streamlined workflow in a chemistry-free environment, thereby reducing printing cycle time and lowering production costs. Presstek solutions are designed to make it easier for printers to cost effectively meet increasing customer demand for high-quality, shorter print runs and faster turnaround while providing improved profit margins. Presstek subsidiary, Lasertel, Inc., manufactures semiconductor laser diodes for Presstek's and external customers' applications. For more information visit www.presstek.com, or call +1-603-594-8585, ext. 3599 or email: info@presstek.com.

DI is a registered trademark of Presstek, Inc.

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Linda Lennox
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