[sane-devel] Canon DR-C225 II - black scan

[m. allan noah]

Marek, I'm sorry it has taken me a month to reply, life is a little
'different' these days :)

So I have gone back through every email thread I have had about the
DR-C225, and do have a set of logs from the windows driver. I will
attempt to determine which bit of magic we are missing. It will take
me some time, as I am travelling now. If you do not hear from me soon,
please feel free to reach out. Also, if you want to study up on
rebuilding sane-backends from source in the meantime, we will need it.

allan

On Fri, Jun 26, 2020 at 4:33 PM Marek <mrupniew at tlen.pl> wrote:
>
> Dear developers,
> I wonder if you could help me with resolving a problem with Canon
> DR-C225 II scanner (canon_dr backend). The output scan is all black. In
> 2015 there was a thread on the predecessor of this scanner: DR-C225
> (without 'II'), which suffered from similar problem. Unfortunately that
> thread seems to be prematurely abandoned without solving the issue.
> I'm attaching a scanimage log for a page scanned in a grayscale mode (for
> the color mode the output scan is black as well).
> Best regards,
> Marek



-- 
"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"