Hello there, this is Emily.
Good to hear that the other printer prints color fine to rule out the issue being on the printer. This means you most likely need to reinstall the printer driver on the problematic comptuer. The driver is either outdated due to the Windows update or corrupted. What's the printer's brand and model? Normall you can just go to the printer's manufacturer website, search for the printer's model and find the driver for Windows 11, then download and install. I am happy to help you find it if you want to share the brand and model for the printer.