Business is mostly black and white for Datamax-O'Neil. The company makes equipment for bar coding and automatic identification labeling, including thermal printers, software, label verification systems, and thermal transfer ribbons. Its products are used to create labels that, in conjunction with bar code scanners, help track merchandise, prices, and inventory. The company's Datamax-O'Neil Printer Supplies unit makes ribbons, custom labels, and tags. Datamax-O'Neil provides application integration, network and software testing, printer repair, technical support, and training services. Once owned by Dover Corporation, Datamax-O'Neil was acquired by diversified industrial conglomerate Honeywell in 2015.