I bought cheap ink for the same printer on Amazon and I can hardly see any difference. The cost of 4x6 paper is not much. At that price I dont mind allowing others to print. Life is short and its your family. Here is the ink I got:

​

https://www.amazon.com/gp/product/B076PSPCSQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1