• Directory of Internet terms
  • Dpi — Abbreviation for Dots Per Inch. A measure of the of the quality of output, i.e. the number of dots per square inch produced by a printer or scanner, also referred to as its resolution. A resolution of at least 300 dpi is considered reasonable for the production of high-quality output by a printer and 1200 dpi by a scanner, but modern printers and scanners can produce many more dots per square inch. The resolution of a scanner may also be expressed by two numbers. These are mostly the same, e.g. 1200 x 1200, but you may also see 1200 x 2400, which means that the number of horizontal dots is different from the number of vertical dots. See Printer, Resolution, Scanner.