Dot matrix printers rely on a printhead in which a grid of 9 or 24 pins forms combinations to produce text, box-drawing characters and symbols made up of closely spaced dots. These devices superseded ...

Some businesses still use dot matrix printers to generate invoices, forms and other documents. Unlike modern laser printers, a dot matrix printer has a single print head and an inked ribbon. Neither ...

If there’s one thing we like better around here than old, obscure displays, it’s old, obscure displays with no documentation that need a healthy dose of reverse engineering before they can be put to ...