Worked exactly as I wanted in my Xerox 6605 work Centre. Only one of the 3 tested that I purchased and I won’t have to use another one for at least 18 months when I buy a new toner so let’s hope the other two are good! I can’t be bothered to test them, but I’m sure it’ll be fine. No one likes paying for postage but hey it’s still very good value and I like the Chinese work ethic. And can do mentality in business..