Risograph inks are soy-based and do not conform exactly to any color standards. The listings below are approximates for reference only. Additionally, Riso inks are also slightly transparent and allow for variations in overprint and based on the color of paper they are printed on. 

Picture of the Master Removal Unit of an RZ970 E

In this tutorial, you'll be guided through the necessary steps to change broken/ripped/missing Master Removal Belts on a RZ970 E (working for the RZ990 and possibly other RZ types as well). It's an issue that happens quite often and you might not want to call a technician every time. Just order the replacement belts (basically very strong rubber bands you can also get in a hardware store) and follow the steps below.