The rheological properties of an ink relate to its performance on the press and to the printing quality. So it is necessary to analyze the relationship between printability and the rheological properties of ink. Transfer rate of ink is one of the important factor deciding print quality. And it is concerned with rheological properties of ink. Thus, in this study, according to the molecular weight of rosin modified phenolic resin the rheological properties of ink were measured by rotational rheometer and then transfer equation of ink, density and gloss were measured in order to examine the printability of ink.