I set up my HP M44fdw scan/fax/print multi function device using hp-setup installed via apt, following these instructions. Printing works as expected.
I'd like to use network scanning, too. I'm using hp-toolbox to kick off simple-scan with the correct hpaio scanner URI. Everything works as expected, except for the five minute wait when I click the green "Scan" button. It pauses showing this:
Any ideas on how to speed up this bit?
I'm using 64-bit Ubuntu 18.04 LTS desktop. It does not repro on a 2nd computer running 64-bit Ubuntu 18.04 LTS desktop that was installed from scratch, so I'm wondering if there's some cache/legacy carryover from a previous version of some program. I tried blowing away ~/.cache/simple-scan/ but that didn't help. I also tried uninstalling and purging hplip, cups, simple-scan, and xsane. I tried temporarily disabling ufw. I deleted all print queues and re-added the one for the HP. No change.
$ hp-diagnose_plugin
HP Linux Imaging and Printing System (ver. 3.17.10)
Diagnose Plugin Utility ver. 1.0
Copyright (c) 2001-15 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
Device Plugin is already installed
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