THE DEMAND for high-quality color graphics in larger sizes has risen dramatically as the availability of larger ink-jet printers has increased. How do you decide what kind of ink-jet printer you should purchase? As with any business decision, you weigh your demand for the product against the cost of the equipment, materials and labor involved. If your customers are only interested in the capability of printing 13x19˝, then purchasing a 60˝ wide-format printer may not be a good choice. However, you should try to purchase above your current expectations so you can handle future growth or expand the services you currently offer.