My HP ENVY 5660 multi function printer was running fine under Mageia 8.
I executed an online upgrade to Mageia 9. Now it does not work.
I found the Mageia forum topic "[SOLVED] Mageia 9 printer issue" at https://forums.mageia.org/en/viewtopic.php?f=24&t=15041 .
I deleted and reinstalled the printer device as described several times, working to make sure the printer was on at the time of installation. It was found and reinstalled several times but continued to fail.
You are fantastic. I have run Mageia through name changes, etc. since the late 1990's.
Any advice is appreciated.