Non-aqueous, radiation-curable inks comprising pigment, dispersant and a liquid carrier, wherein the pigment has an acid value greater than 8 mg of NaOH per gram of pigment. The apparatus includes at least one spray scrubbing area, where the water is collected, recirculated, and filtered. With respect to the newly-forming portions, enlarged patterns are formed by an electron beam drawing apparatus to form new master reticles, and reduced images of the newly formed master reticles are exposed while stitching screens using an optical-type projection exposure apparatus. In this manner, the maximum flow from the first nipple may be reduced by a setting outlet corresponding to one of the flow rate settings. The speckle light results from the incident light.