On Fri, 2 Aug 2019, Brian wrote:
So - you had the plugin installed already!
yes, but as I already said, on my desktop, it gives: error: Unable to open /data/home/frenkiel/.hplip/hp-plugin.lock lock file. and on my laptop, it opens a window saying: the driver plugin for HPLIP 3.16.11 appears to already be installed. do you want to download and reinstall the plug-in? which is more user friendly. best regards, -- Pierre Frenkiel