[sane-devel] Epson Perfection1640: Slide scan fails with scanimage

[ael]

On Tue, Nov 09, 2021 at 04:47:34PM +0100, Wolfram Sang wrote:
> 
> SANE_DEBUG_EPSON2=<value> xsane

I have done some further testing, this time with scanimage.

Again, I have failures with film=Postive Slide. I hope the attached
log is self explanatory. 

Things that I noticed, but don't (yet?) understand:

1) The sane-epson2 page doesn't mention the Slide values for film,
   but it seems to be advertised by the backend.

2) Both the focus and autofocus options are marked as
inactive, and my debug logs do not show any focus command being sent
unless i have missed them. That is what I expect for autofocus,
but i thought that focus *was* set for TPU or flatbed.

ael

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