A Risograph printer is a stencil duplicator. It is capable of printing in many colors, but only one at a time. Each color has a specific ink drum that is loaded into the machine. The image itself is burned onto a rice paper master and then wrapped around the drum, where ink is then pushed through it (similar to screen printing). The process is often described as a cross between screen printing and photocopying.

Risograph duplicators are used for a variety of things, from office settings to zines, flyers, books, posters, and art prints. Because they use a soy based ink, the process is cheaper long term and more environmentally sustainable.