After more than a year then paved in two weeks before the GAU: Although the black tank was full, the picture was only streaked, then the black color was completely gone. After cleaning the print head, we went again until the next morning the same picture. Exchanged the safe side all tanks, re printhead cleaning and then everything seemed back to butter. After three days of pressure break anything now but apparently clogged: The printer (9 months old, Canon MX895) spits only white pages. Even after a new change of all tanks and multiple Intensive cleaning: The nozzle is clogged, the printer would have the service center and the guarantee will not apply because of the wrong cartridges. At today's price policy, an economic total loss.
Of course I can not prove that the defect is due to the low cost cartridges, but the thought is very obvious. The cancellation of the warranty and the feeling of having gehimmelt the printer using the wrong cartridges, but I completely enough to allow in future the finger of NoName-substitute products.