I have a Windows laptop which I updated from Windows 10 to Windows 11. After the upgrade I had some problems printing on my HP 5541 inkjet printer, which were resolved.
After a period of trouble-free usage, and without warning, the laptop now prints grayscale only. If I print photos via the HP Smart App, they come out grayscale. This is also true if I print using Microsoft Word, Microsoft Paint or Adobe PDF.
The ink cartridges are not empty or reporting issues. The printing troubleshooter reports no issues.
I can use the HP 5541 as a copier and it will print in colour. I can also successfully print in colour successfully from other devices such as my wife's Windows 10 laptop.
My drivers show as the latest drivers when I check via Device Manager.
I have tried uninstalling and reinstalling the drivers as per this solution, but it has not helped.