PURPOSE: To obtain high-quality images at low transfer pressure, which will not be easily affected by the time required from printing to transfer and a printing pattern, in a transfer type ink jet printer.

CONSTITUTION: Particles and colorant which swell with at least a solvent and are cross-linked internally and three-dimensionally are dispersed to be dispersion medium so as to make an ink. The ink is discharged by an ink jet record head 2. An ink image formed on a transfer drum 1 is evaporated by its solvent, flocculated and adhered by the particles cross-linked internally and three- dimensionally in the ink, and transferred to a record medium 6 by a pressure roller 3.