i learnt  that injest printers print 2-6ppm and lazer printers print 8-200 ppm! also that the quality of a printeris based in dots per inch (dpi). dot matrix printers such as the daisy weel usaes impact technology, the inkjet printers use electrostatic spray and a lazer printer uses eletrophotographic technology.the colours of printers ate cyan (red), mangeta (blue), yellow and black or CMYK and that dot matrix printers can only use one font and one size and it can not print colour.