as always, MoreInks book via Royal Mail within 2 days. but this time my printer broke down 20 pages after the toner changes irreversibly (printer showed "erroneous print head" while the front page was printed correctly >> nothing more to do to buy a new printer ink >> is obviously not compatible ie 3 x 5 cartridges bought for nothing). I wonder if the product did not change (the package was different from last year, the ink from the USA). ????. So ... a big doubt.