I bought these toners for a Canon laser printer. Every time I try to print I get the message "These are not genuine toners" and it won't print until I click OK on the printer screen. This is very annoying, but I knew this would happen as the toners are not genuine. The colors are not vivid and everything I print looks washed out. Don't expect high quality images or photos to be printed on it. I think you get what you pay for, the alternative is to buy genuine toner for $600. I could buy another printer for that price, no thanks.