We have developed “Luxel SPEEDPROOF-9000 system”, a new type of DDCP (Direct Digital Color Proof) systems designed for a wide range of colorproofing processes on today’s workflow in the digital era. Luxel SPEEDPROOF-9000 system provides near-final print quality, higher reliability, high-speed printing, clean operation and large size printing up to B1 size. These prominent features are achieved by advancing and applying the photosensitive silver halide emulsion technologies, dye-forming coupler technologies and photofinishing processing technologies developed for the latest type of Fujicolor paper. Furthermore, Luxel SPEEDPROOF-9000 system is equipped with advanced color-matching software that adjusts for the deviations in dot gain. 1. はじめに