The dealer management was first class, the cartridges are garbage. Compatibility can be no question. Dried after 3 weeks use. I had the last time with a printer built in 1994. From the beginnings of the art Only trouble with filling levels (will not be recognized) and nagging to the printer. This has of course much to do with the restrictions on the printer with the cartridges. Printer is a HP Photosmart 5510 and the HP name, making it drifted for me in the field of Unseriösität. Imagine times, eg VW would start a chain of petrol stations and from now on would only VW diesel to run in their cars. For printers which can afford with the consumables. But woke up only until enough consumers. I'm awake now ...