Transpromo isn’t the only opportunity. Numerous markets and products are waiting for digital printing to transform them.

By Frank Romano

• Toner-based printing—also known as electrophotography or xerography—is based on particles of pigment encased in plastic-like cocoons that are moved around by electrostatic charges. Laser light images photoconductors to convert light energy into electrical energy. The page image exists as a set of plus and minus charges, which then attract the oppositely charged toner. Paper is either charged or conducts a charge that is opposite to the toner on the drum and the toner is attracted to the paper. It is heated to fuse the toner on the paper. Toner printing can be sheetfed or roll-fed, using wet (liquid toner) or dry (powder toner).