Patent ID: 7129284

Claim:
An inkjet printing system for use in offset printing comprising: a fixer fluid comprising a cationic fixer polymer and a first fluorosurfactant package, the first fluorosurfactant package comprising a fluorosurfactant present in an amount ranging from about 0.01 wt % to 1.5 wt % and a hydrocarbon surfactant present in an amount ranging from about 0.05 wt % to 2.5 wt %, wherein the fluorosurfactant is a cationic or nonionic fluoropolymer and the hydrocarbon surfactant is polyoxyethylene lauryl ether and wherein the cationic fixer polymer is poly(hexamethylene biguanide) or a copolymer of hexamethylene guanide and hexamethylene biguanide; and an ink comprising an anionic dye and a second fluorosurfactant package, the second fluorosurfactant package comprising an anionic fluorosurfactant and at least one anionic or nonionic hydrocarbon surfactant.