Bar code printers are used to output bar codes in printed form. They differ in terms of performance specifications and bar code symbology. Printing width, printing rate, and resolution are important performance specifications to consider when selecting bar code printers. Bar code symbologies are machine-readable representations of information stored in bars and lines. Choices include: Bookland EAN, Codabar, Codablock, Code 1, Code 11, Code 128, Code 16K, Code 39, Code 49, Code 93, European article numbering (EAN), Japanese article numbering (JAN), Industrial 2 of 5, Matrix 2 of 5, Standard 2 of 5, interleaved 2 of 5, LOGMARS, MaxiCode, Plessey, PDF417, PLANET, POSTNET, SISAC, Telepen, UPC, Vericode and DataMatrix. Bar code printers that print composite symbologies are also available.

