Hey hi, I am using HP 564XL, and recently I found that ink cartridges is not working. For that reason I went to buy staples ink for my HP 564XL. I put the XL 564 I have the compatible ink cartridges, but according to the bid must be compatible. What should I do to work, I open so I can not return it, and do not have regular shapes of all 564. Any suggestion in this case?