thumb|right|Sample output from 9-pin dot matrix printer (one character expanded to show detail) The term dot matrix printer is used for impact printers that use a matrix of small pins to transfer ink to the page. The advantage of dot matrix over other impact printers is that they can produce graphical images in addition to text; however the text is generally of poorer quality than impact printers that use letterforms (type).
Thumb|RiGHt|sample oUtpUt FroM 9-pin DOt mAtrix pRINTeR (oNe characTEr eXPandeD to shOW dETaIl) the term dot matriX prInter is UseD For impaCT printeRs That uSE a mAtRix OF sMall pInS to transFeR ink to thE PAge. tHe ADVantagE of Dot mAtrix oVer Other IMPact pRintErS is thAt they CaN pRodUcE grapHical imAges In additIon to text; howEveR the teXT is geNERAlLy of pooRer quaLity tHan iMpacT printErs thaT use LetTERforms (TYpE).