good product with small but remediable problems

+ The housing is transparent so that you still have a visual check whether the cartridges are really empty / full or not
~ The quality of the print as I would no longer quite as good as describing the original cartridges, given the
Price advantage but I am in agreement.
- The insertion of the cartridge (see next tip)

I had the problem that after the insertion of the colors did not vote. Then I just do a test print from Word generated with a cyan (# 00FFFF), magenta (# ff0090), Yellow (# FFFF00) and black filled rectangle. - Behold: the blue rectangle was relatively quickly know all others have folded.
So first clean the printhead: No improvement

Then I discovered the following: Prior to insertion of the cartridge you must remove yes at the top of a tape that the aeration of the cartridge allows. On closer inspection, I have but the vent can not discover in the Blue. Here, the adhesive tape has been attached unfortunately slightly offset so that despite correct distance the vent hole was not released. So open with a knife, the air hole (in which I have the sticker with the color / Cartridge Info easily removed through the hole) and lo and behold: now works correctly.

For all those so one (or more) colors are missing or they fade quickly if one of them in a document longer needs: time check whether the discharge / ventilation exposed the cartridge.

With me also coordinate their dimensions (so that the cartridges are secure and clean snap) and also the recognition of the chip works perfectly, so I of 5 stars give 4 - to a deduction for the problem with the air hole and the slightly lower quality than in the original ink.