Effects of ripening and digestion of mother emulsion on making the print-out emulsion, consisted of mother AgBr-I emulsion to which silver nitrate and citrate had been added as a halogen acceptor, were investigated. Digestion of mother emulsion increases sensitivity and contrast in the print-out emulsion remarkably, and this effect depends upon the rate of ripening. Addition of thiosulfate as a chemical sensitizer at the start of digestion stage also increases the print-out effect. The rate of Digestion have influence upon the color of print-out image. Extreme digestion is effective for high speed print-out emulsion making and lead to better printout characteristics.