Brother MFCJ6930DW - Cannnot Detect?

Hello All, A year ago, I purchased a Brother MFCJ6930DW. I used it one time to test that it worked and put it back into storage. Of course, a year later (after the warranty has expired) I took it out of storage to use, but it has been giving me a headache. When I insert the Brother Starter Ink, it repeatedly tells me to use genuine brother ink and shows “X” on the cartridges. I have tried with no success, using electrical tape and a black sharpie to block the clear ink window on the ink cartridges. I have bought after market ink cartridges and it tells me that it “cannot detect and to reinstall firmly”. I have also tried bypass methods I’ve seen on YouTube. What could be the problem? I don’t want to spend $70 on new cartridges and end up its not the problem. Any suggestion would be greatly appreciated. Thank you!