The digital ink sector is one of the fastest growing in Europe. But for ink makers, it is increasingly becoming one of the most difficult in which to operate. A large part of it is taken up by the ink cartridge segment for PC printers, which had total sales in Western Europe of $7.7 billion in 2002, according to CAP Ventures, a market research company. The cartridge sector is still dominated by the printer manufacturers (OEMs) such as Hewlett Packard, Canon, Lexmark and Epson, which in volume ...