Manufacturers of digital printing equipment (OEMs) currently account for the vast majority of sales in the ink jet ink and laser toner market in Europe. Now their domination of one of the fastest-growing sectors in European printing ink is under threat. Producers of conventional inks which have tended to keep clear of the digital market because of its high entry barriers are slowly making bigger inroads into it. Consumer and small-business groups have also been claiming that lack of competitio...