Magenta cartridge is probably the most problematic cartridge
Set of 4 716 toner cartridge for Canon LBP 5050 5050N / MF 8030 8040 8050 8080 - Alternative for EP 716BK 716C 716m 716Y - Black Cyan Magenta Yellow (Electronics) 2
Set of 4 716 toner cartridge for Canon LBP 5050 5050N / MF 8030 8040 8050 8080 - Alternative for EP 716BK 716C 716m 716Y - Black Cyan Magenta Yellow (Electronics)