In 7 months that I have had a printer this is the second printhead and now it starts acting up . Test print looks good then you print two foot and run another one and part is missing . How does ever one keep their print head working good . They told me not to clean it to much cause its bad for printhead , Do not do ink fill to much bad for print head . I run a small test print ever day even if we dont use it but on the weekends . The colors Blue and green have all ways been off but someone said some inks are bad for the print head . Any ideas how to stop this from doing it again . And can I bring this print head back or is it time to buy another 1500 one .