After "1200 sheets" cartridges were of my yellow ink "alert", I had a single yellow bought later and hoped that all the color cartridges would be emptied at the same time "600 sheets" element. But why there is "Murphy's Law"? Prompt gave the "Cyan" element alarm. That's why I now again a complete set bought "1200 sheets" -Farbpatronen and directly used a "large" cartridge. Again, not a problem with the cartridge recognition ... all good ...
