Wouldn't print black-and-white if the color cartridge is empty

I want to print a Word document using only black.
Actual status of printer:
- The color ink is low. The black ink is 50% (indicated by the picture).
- I selected from the drop down list to use Only Black.
- I selected Grayscale printing.

When I press print, I get the message Color ink is low => Cancel priniting. (The error code is E6)

I tryed without the color cartridge and not possible (E5)

Can you please tell me what other setting is needed?