It means that SANE has still some potential to revise their code.
Commercial application did better than Sane. Vuescan is actually very good.

Like I said, I'm sure it's very good, but it looks like it's a more complex program than what I need. All that color coding and graph material means there is a lot there for people who want to work with photographs. That isn't my need for a scanner--just text. So is the upshot here that sane formats are not up to speed?

FWIW, I've used 'simple-scan' for several years and it has just worked. I've used it successfully with various sane backends (for various Brother multi-function devices and an HP scanner). However, I note the genesys backend (supporting a number of scanner chipsets including yours) seems to be problematic for many. There are numerous posts and bug reports concerning this particular backend if one cares to search. It may well be that simple-scan is parsing incompatible values to the genesys backend in this case, but that is just speculation since nothing definitive has been captured in the debug output to date. A bug report is likely required to help progress this.

scanimage -L is probably a good product to use, but actually, the whole Linux system is mostly dependent on it.

If sane does not work, you won't get much alternatives.

It seems to me that dev of sane could be faster, since there are commercial programmes that works excellently, only few persons, can replace a whole sane team??

Xsane does work on my system. What started this discussion was my concern that xsane only does single pages--you can't really copy a several page file into single unit. If I have a ten page document, for example, I would have to scan each page as a file unto itself. Not a huge deal but inconvenient if I'm sending a professional document for business purposes. Simple-scan is supposedly better at scanning multiple page files.

And that makes it even more perplexing: sane works with xsane but not with simple-scan. If the genesys backend doesn't work with one program you would think it wouldn't work with another. Why would that be?

It's not that the genesys backend isn't working (clearly it does work with the xsane front-end), it's that somehow simple-scan seems to be having an issue communicating with this particular backend. Again ----> bug report.

XSane, at least the versions I've used over the years, does allow you to copy several pages into a single file.
Near the top of the top labeled, xsane 0.999, and below the header labels, "Window" and "Help," is a box. Its default is, "Save," but you can click on that and change it to, "Multipage." This will launch another box entitled, "xsane multipage project." You should be able to take it from there.

A long time since I've used xsane, but I just checked, and yes I see the multipage button which allows one to specify x number of pages to be scanned. I prefer simple-scan's approach though because the number of pages doesn't need to be stipulated. One just keeps scanning page after page until done, then saves the resulting document.

I considering to buy VUESCAN since it does pretty well. what about buy commercial products, for you, if they would / could do the job of scanning?

*IF* it worked with my scanner and *IF* the results were as good as what is produced by the HP/ms-windows drivers, I wouldn't hesitate to buy a copy of a Linux based scanning application.

Okay...How do I issue a "bug report"?

Start by reading the wiki...

https://wiki.debian.org/reportbug

Finally some results! What I discovered is that by clicking on the icon "start new document" the page scans perfectly. I had always been clicking "scan" because...well, that seemed the logical thing to hit in order to scan! But the start new document icon scanned the page and it even printed out fine. BUT...when I hit "scan" it still says scan failed, etc. Does this represent a glitch of some kind? What is the purpose of the "scan" button if not to scan???

The scan button works for me, so yes that is unexpected behaviour IMO.

SANE is very dangerous, it almost broke down my scanner CANON LIDE 120 !!
Sane moves up while scanning endless!

I don't recommend Sane at all on canon scanners of similar type..

yours is not close to that model.

Maybe you can try on FreeBSD, sometimes BSD has been support than Linux.


FreeBSD was almost kicking, but in my opinion, FreeBSD is now much better than Linux.
https://forums.freebsd.org/threads/55800/