A.1. Clean the print head for several times. If still not ok，place it for 1~2 hours and try again.
2. Maybe one cartridge is missing or used out, pls do nozzle test to check which one is missing or used out, just replace with a new one.
3. The printer program in the computer is not the same with printer you’re using. Pls set the right printer program.
4. The printer is settled to be economical mode, pls set another mode for better performance.
5. Color distortion is also related with computer color management，screen resolution, printer resolution, as well as print media. Please adjust the DPI to a higher figure
6. If your printer needs 2 or more inkjets, please check whether the inkjets are with same brand, as same brand ink has good compatibility
7. If above methods can’t work, maybe it’s because of the ink cartridges have bad quality, the damaged cartridges, or the aging print head and etc. Pls replace the inkjets or replace the print head.