This printer is only a few months old.
Pure black is printing fine. Grey prints fine for the first 2-3 pages. And it gradually turns to orange. It gets worse the more I print. Here is the test page. You can see that orange on the right instead of grey bars. Also, blue is missing!
Try cleaning the print head.
Usually orange or pink indicates double color processing or 2 different programs managing color profiles in your workflow. For the time being, I'd try to get the printer to work correctly with a standard test page.
Bay Area - CA
~R5 C (220.127.116.11) ~RF Trinity, ~RF 100~400, +Canon Control Ring~6D2 (v1.1.1) Retiring ~EF Trinity, others ~DxO PhotoLab Elite ~Windows10/11 Pro ~EVGA RTX 3080Ti FTW3 Ultra ~ImageClass MF644Cdw ~Pixel6 ~CarePaks Are Worth It