Don't get nervous, if the software tells you that there's no problem with the cartridge then there is some problem within the settings.
software detects it as legitimate colour cartridge
First check your printer properties and check the 'Paper type', change it to whatever paper you wish to keep.
Also, check the quality settings, you need to set it to 'Best'
Lastly, Update to latest drivers (Check if you have the post script driver available, does a better job)
Get back to me with the results as soon as possible, so I can assist you further.