I use the German version of the menu
Scanner: HP Officejet 6600
I press menu: Insert>media>scanning>
and nothing happens... Not scanning
With HP Software it works
Reading this https://bugs.documentfoundation.org/show_bug.cgi?id=92478#c31, either you must check you installed LO 32 bits or you must check you got 64bit twain dll.
Fixed on 64-bit builds at 5.3.0 with
but is dependent on 64-bit TWAIN DSM and valid data source ".ds" description installed to system by some external action.
SourceForge TWAINDSM.dll can not be directly registered with regsrv32, and the bundled .msm installer module must be parsed.
*** Bug 105283 has been marked as a duplicate of this bug. ***
*** Bug 105284 has been marked as a duplicate of this bug. ***