Xerox recently announced two new printers that use a solid, wax-like ink, which Xerox claims has lowered the per-page cost of color ink to the same price of black and white. This is big news for large ...

Add Yahoo as a preferred source to see more of our stories on Google. Inks for Japanese and Chinese brush painting (sumi-e in Japanese) and calligraphy are made from soot combined with animal glue.