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Craig Crossman National Newspaper Computer Columnist Click here to see the index of Craig's columns. |
DYE SUBLIMATION OFFERS INKJET ALTERNATIVEMost computer users will find that affordable color printing usually comes under the category of "inkjet printers." Inkjet technology has come a long way over the last few years. Higher print resolutions, superior paper quality plus the addition of two extra colors to the four color standard has yielded a generation of inkjets that can produce output rivaling color photographs while remaining relatively inexpensive. But there's always room for improvement and it may come from a technology that until recently was priced way out of range to the ordinary consumer. Only a few short years ago, dye sublimation printers were in the $10,000 to $50,000 range and therefore used only by professional print houses. Using a thermal transfer process, dye subs have a transparent ribbon that looks much like a roll of plastic wrap. As each color panel on the ribbon passes over the special glossy paper, the dye leaches beneath the surface of the page (thus the term "sublimation") and is usually followed by an additional clear ultraviolet layer that shields the final print from the harmful bleaching effects of light and damage from the other elements. Dye subs are sometimes referred to as "full bleed" or "continuous-tone" printers because the dyes become blended together to form a smooth image. Unlike other printers that rely on dots to form a picture, dye subs literally paint an image on the paper. Even under a magnifying lens, you won't see any graininess. It's very hard to tell the difference between a dye sub image and a photograph.
World's first 4 megapixel camera
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| Craig Crossman is a McClatchy-Tribune newspaper columnist writing about computers and technology. He also hosts the nation's longest running nationally syndicated radio talk show on computers and technology, Computer America, heard on both the Business TalkRadio Network® and the Lifestyle TalkRadio Network®, weeknights at 10PM Eastern time. Visit his website at http://www.computeramerica.com |
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