We could see all kinds of advertising signs everywhere in our daily life, and most of them are outdoor ads, so the printing-out images require the abilities of light-resistant, waterproof, good color performance and high output rates, and the format of the advertising signs must be very large. Advertising printing field have two totally different models of printer and two kinds markets, one is wide-format solvent printer, such as VUTEK, SCITEX,namely large format solvent printer. Another one is large format inkjet printers with the representative of ENCAD, HP.