The initial enthusiasm (print quality is virtually as good as the original cartridges) quickly gave way to disillusionment: After 1 week break the pressure nozzle of the black channel (pun intended) were clogged to a large extent. After application of an original cartridge and multiple nozzle cleaning again were all to reactivate. The colored cartridges have this effect hardly. My conclusion: For mass printer probably appropriate. Normal users who print not daily, caution. -Shame-
