EPSON XP-2200 (not printing)

[Niall]

Hello, anyone any ideas regards Epson Xp-2200 not printing, the Print-Job is sitting in Print 'Queue' :

1)Color ink cartridges are low, I am being prompted to replace ,but I don't need color ,so:
2)I have fitted the XL Black-only ink cartridge &
3)selected Print in 'Grayscale' only ,
4) Select to print Click OK, nothing happens, 'Buy Epson' Ink window box comes up.
5) I cancel, try again ,always same issue.

Please any advice welcome. Thank you,

Niall.