You didn't mention what printer is involved here. But here is a simple explanation and you expand from that. Upon replacing most inkjet type ink carts, they need to be "aligned" in order to provide the best output. Using whatever pgm. they provide, access it and proceed to run the alignment routine and check results. Once finished, it should refrain from startup requiring a test page. Also, during that "test page" time, it should explain why its doing what its doing, it may even provide some action/link to correct itself, click on it if present.

tada -----Willy Happy