METHOD OF HIGH-SPEED PRINTING FOR IMPROVING OPTICAL DENSITY IN PIGMENT-BASED INKS

摘要

A method of inkjet printing includes the steps of: (a) moving a substrate past a printhead; (b) printing a pigment-based ink onto the substrate from a first color channel of the printhead; and (c) overprinting a fixer ink onto the pigment-based ink from a second color channel of the printhead. The fixer ink is overprinted onto the pigment-based ink within a period of less than 5 ms.