These cartridges are designed for use in the following Canon Copier Machines: E16N, PC140, PC150, PC210, PC230, PC300, PC310, PC320, PC325, PC330, PC330L, PC400, PC420, PC425, PC428, PC430, PC530, PC550, PC710, PC720, PC730, PC735, PC740, PC745, PC770, PC775, PC790, PC795, PC900, PC920, PC921, PC940, PC941, PC950, PC980, PC981 and others.