While prints the cartridge and can also be used without problems, but it was not enough that I had placed me a paper towel in time to protect my fingers in front of not washable ink in case something swells out. It can be taken off the bottom without huge mess neither the upper strip, even the plastic lock !! Below no sponge is visible, the other cartridges prevents running out - possibly pushed inward ... above the ink bursts as well as down and out when opened under high pressure, so that the hands and the surroundings are totally eingesaut! People that you have to correct!
