Hi, every body. My new HP Envy 6000 Series is working to print but it's impossible to do work the scanner. I try to install the plugin hplip-3.23.12-plugin.run on my Linux Mint 19.3 OS. but after a fail message a window says: HP Device proprietary plug-in is missing. Click "next" to continue plug-in installation and after click: Failed to install Plug-in. Either you have chosen to skip the Plug-in installation or entered incorrect Password.
If however this plug-in exists in developers for Linux how to get it... Thank you for your valuable help.
(Additional info: I went to the web page 'https://developers.hp.com/hp-linux-imaging-and-printing/plugins', I opened the plugin (you can’t download it directly) then copy-paste and 'sudo sh hplip-3.23.12-plugin.run' and finally without 'sudo' but I got a first error message: MD5 is not: eoc74 fh... I changed it to the one indicated and it worked!!! but a new error message: impossible to open is not compressed in "gz" format. I converted the file to put it back in good condition and installation and started then I was asked my password what I did and after a few moments, finally "done". But alas it still does not work!!)