RISO masters CZ100

RISO masters were developed specifically for the RISO printing process and are a key component of a RISO digital duplicator. A master works in the following way: a document is either scanned or sent via a PC to the risograph. The document is then digitally reproduced onto a master sheet. The master sheet is then wrapped around a RISO drum, which turns at high speed. A sheet of paper passes underneath the ink drum producing prints.

The master can be used multiple times, so the same document can be ‘duplicated’ hundreds or even thousands of times, at speeds of up to 185ppm (the standard printer is about 30-40ppm).