Methods and systems for printing on non-porous media

A printing system for non-porous media, comprising:

• a fixer fluid, the fixer fluid comprising:
• a liquid vehicle including water and co-solvent having a boiling point from 160° C. to 250° C., the co-solvent present in the fixer fluid in an amount of 1 wt % to 40 wt %;
• a surfactant, the surfactant present in the fixer fluid in an amount of 0.1 wt % to 10 wt %;
• and
• a cationic polymer, the cationic polymer present in the fixer fluid in an amount of 0.1 wt % to 25 wt %;
• an ink, the ink comprising an anionic pigment dispersion and a latex;
• and
• a printer configured to overprint or underprint the fixer fluid within 125 milliseconds of printing the ink at a flux of 1 to 14 mL/hour per inch2 of swath area, and wherein the printing is configured to print at a temperature of less than 55° C.