It says solved? I will put my comment here, I may be of some use, I have HP envy 5640 it is wireless, once, 2018? for what ever reason, I hooked it up with the USB cable and not wireless WiFi. It would not work on WiFi after that, left it on cable, but for laptop was inconvenient, It would not see the WiFi after that, I tried every thing, finding my way all the time, all hit and miss, I tried turning modem, and ever thing off, reset modem, tried the cups thing in terminal, uninstalled printers played with drivers over and over, but a few months later i happened to go through all the driver setting again, (was updating linux mint cinnamon 18 or 19 at the time) when ever the update manager indicated, never change any or loaded any kernel’s, back to the few months later bit, I happen to go through the drivers and just changed a lot, and then it all worked, so my problem was in the setting in the drivers, where you set up a printer, Have not got a clue what I did, but all the Linux Mint printer settings never needed touching before, when ever I put a new distro on it was always automatic it just printed. So that made me sit up and take notice a bit better. What I do need is something to record the screen or what ever I am doing, so I can go back over it later. Thank you all.