I added disco-proposed and downgraded the relevant packages to these versions:
---
libsane-common/disco-proposed,disco-proposed,now 1.0.27-3.2ubuntu1.1 all [installed,automatic]
libsane/disco-proposed,now 1.0.27-3.2ubuntu1.1 amd64 [installed]
sane-utils/disco-proposed,now 1.0.27-3.2ubuntu1.1 amd64 [installed,automatic]
Rebooting and then scanning a page on CanoScan LiDE 200 resulted in the expected result, an error-free scan. \o/
@vorlon, @gunnarhj:
I added disco-proposed and downgraded the relevant packages to these versions: common/ disco-proposed, disco-proposed, now 1.0.27-3.2ubuntu1.1 all [installed, automatic] disco-proposed, now 1.0.27-3.2ubuntu1.1 amd64 [installed] disco-proposed, now 1.0.27-3.2ubuntu1.1 amd64 [installed, automatic]
---
libsane-
libsane/
sane-utils/
Rebooting and then scanning a page on CanoScan LiDE 200 resulted in the expected result, an error-free scan. \o/
Therefore: Verified on disco.
Many thanks for your efforts!