I've been using the cartridges, etc. No problems with leakage, only once is probably color into a nozzle dried (at any rate, a color no longer be print), after an intensive nozzle cleaning but everything worked again (via the Printer Maintenance Program) perfect. The cartridges are for the printer and my daughter used it only very, very rarely (sometimes for weeks). For this, the cartridges are working much better than expected - highly recommended for the price.