I do not like 6 1

but I do not have much choice for an HP printer I prefer to buy original toners. It is on Amazon that I could find the best value for money (almost 50% cheaper than in stores if one takes the subscription option!) By cons, all toners that I bought from a small moment have untoward default: it is almost impossible to verify the manufacturer's contention, namely the number of pages often decreases the number of pages in a bewildering pace, until the toner comes in "use (d) "; I have not a priori a problem with that, except that HP is not able to give me the number of pages that the toner can print if it is not new! Therefore, unless you count the pages ... Also, when I needed it, the article was under investigation by Amazon, so not available for sale! I had to buy a double pack on the German version of Amazon, which made further lower the costs (despite the postage!) Unfortunately, this double-pack is no longer available for sale on amazon.de and even if it were, it is not part of the subscription program! ...