Review on Enhanced Canon 137 Black Toner Cartridges Replacement by Arthur Imaging - 2-Pack by Nick Whitman

I buy cartridges in advance so that they do not run out. When I decided to fit this cartridge in my Canon ImageClass MF227dw, it didn't fit. If you look at the photos of the cartridge (right) that fits in comparison to this 'Arthur Imaging' cartridge (left), one of the pins (highlighted in the second photo) is in the wrong place. The other end has the same problem. Since it's been 6 weeks since I bought it, Revain won't allow me to return it. This may be an exception, but be aware that it is possible.