Hi Ian , Kill the process "hp-systray" if its still running. Delete the lock /home/ian/.hplip/hp-systray.lock. "rm /home/ian/.hplip/hp-systray.lock"
Retry installing hplip-3.18.4.run "sh hplip-3.18.4.run" For Scan issue, Kindly install 3.18.4 plugin from site (https://developers.hp.com/hp-linux-imaging-and-printing/gethplip) and try to scan. Please get back if any issues. Thanks, Srinivas -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/1769501 Title: /usr/lib/cups/filter/hpcups assertion failure when plugging in a HP LaserJet M1132 MFP printer/scanner Status in HPLIP: In Progress Status in hplip package in Ubuntu: In Progress Bug description: Installed Ubuntu 18.04 64-bit on lenovo ThinkPad T420 (hostname: newton). Intel i5-2520m 2.5GHz 64-bit CPU, 8GiB RAM, 298GiB hard drive, DVD writer, Ethernet and WiFi connections. Attached my LaserJet, Ubuntu ran some software to install the printer (probably trying to run the HP software) and /usr/lib/cups/filter/hpcups crashed with the assertion failure: free(): invalid pointer. Rebooted, installed package hplip-gui, ran sudo hp-setup – it needed to ask me (the user) some questions. That kept it happy and it ran successfully. I ended up with two similarly named HP Printers. Printed to the right one and it worked. Renamed the other one to avoid confusion whilst printing. To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1769501/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp