HP DesignJet Z2100 24-in Photo Printer that I use with Windows 11.
Printing from Adobe Illustrator only prints in grayscale.
Printing from other applications such as Affinity Designer, Adobe Viewer (Acrobat) and Photoshop prints in colour. I've even installed much older versions of AI, and these do the same. I guess this isn't an HP issue, but is anyone aware of this problem or a fix?