Update: My sincerest apologies.
It turns out the good old "restart the affected machine "still works...
I just gave the old gal a power cycle (switched off mains power from
rear power switch), and she is scanning fine.
Please close this bug-report as self-solved. :)
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You received this bug no
Public bug reported:
Affected scanner: HP LaserJet 3030 (MFP, connected via rear USB-B 2.0).
Simple Scan version: simple-scan, v:46.0-0ubuntu2
My Hardware:
Machine: HP Elitebook Folio 9470m (connected to printer via USB-A 3.0, on left
side of laptop).
Ubuntu version: 24.04.2 LTS
USB output: Bus