Comment 71 for bug 1811504

From my point of view the bug should be closed somehow. As I understand MFP M28 uses closed source protocols from Apple (AirScan) and Microsoft (WP-scan) for scanning, therefore the scanning plugin form HP is closed source and Ubuntu developers can do little with it, otherwise MFP M28 linux users, who can push HP directly to fix the problem. The workaround solution (sane-airscan/current SANE) are open source and based on reverse engineering specification of the protocol. My opinion that the proper way of fixing the issue is not to do something in the plugin, but asap include a new version of SANE to next Ubuntu release and/or backported SANE airscan to current Ubuntu if possible.
P.S. As many other users of HP, I absolutely disappointed of such "good quality" drivers from the vendor. I hope it will change in the future.