Ink jet printers have a movable head that can spray fine drops of ink directly on to the paper. Some have multiple heads carrying coloured inks with the best ones providing a wide range of colours. As the paper and the head never come into contact they are very quiet. However they are also rather slow. They are generally cheaper than laser printers and are suitable for all types of high quality low volume work. We have a few in the department including one colour Postscript one CPS2.