I resent being hostage to HP's business model and as soon as I find a more cost-effective approach to printing, I will finally abandon HP -- having been loyal to this American brand for my entire career. I teach and have a small business and simply resent the cost of constantly having to replace cartridges at costs that exceed the original printers.
I've brought these a couple of years ago and these are wonderful. I highly recommend these over any other toner. I've brought my printer MFP277 DW 3 years ago with the ink cartridges in them and I've never had any issues. Thanks HP