Any specialty graphics provider can readily identify at least one or two customers who regularly challenge the capabilities of machine and man. But if there is one class of graphics producer that often takes great delight in pushing the limits of what output equipment can do, it is artists. In the late 1980s and 90s, digital artists were among the first to seize on emerging wide-format technologies, and over the ensuing 20 years, both artists and equipment have evolved with respect to each other. The capabilities of today's printers can now, more readily than ever, capture and reproduce a given …