Duplex scanning from Brother MFC-8910DW ADF does not work

If possible - try the solution provided in Bug #1353599 (download recent tarball, change scanner.vala, bulit and test). Maybe this also solves the problem for you/Brother printers.

To specify my hint for your request (brother printer):

Test the following addition at line 933 and following in scanner.vala:

 string[] adf_duplex_sources =
                {
                    "ADF Duplex",
                    Sane.I18N ("ADF Duplex"),
                    "ADF Duplex - Long-Edge Binding", /* Samsung unified driver. LP: # 892915 */
                    "ADF Duplex - Short-Edge Binding",
                    "Duplex",
                    "Automatic Document Feeder(centrally aligned,Duplex)",
                    "Automatic Document Feeder(left aligned,Duplex)"
                };

Nickibubi, thank you very much! Adding those 3 lines makes it work perfectly!

Hopefully this gets integrated into some future version of Simple Scan.

Hello jimjimovich, or anyone else affected,

Accepted simple-scan into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/simple-scan/3.12.3-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

This bug was fixed in the package simple-scan - 3.12.3-0ubuntu1

---------------
simple-scan (3.12.3-0ubuntu1) trusty; urgency=medium

  * New upstream bugfix release:
    [ 3.12.2 ]
    - Add non-standard option names for duplex scanning on HP And Brother
      scanners (LP: #1343773) (LP: #1353599)
    - Don't access a variable after ownership is transferred - was breaking
      scans (LP: #1334710)
    - Stop configure if Vala not found
    [ 3.12.3 ]
    - Correctly select the previous device after the device list is updated
      (LP: #1485977)
    - Fix error dialogs not showing.
    - Fix save button being inactive on pages restored after a crash
      (LP: #1435794)
    - Fix error where document was discarded if warning dialog was closed
      (LP: #1386738)
    - Store density information in bitmap formats (JPEG, PNG, TIFF). Requires
      gdk-pixbuf 2.32.2 (LP: #484616)

 -- Robert Ancell <email address hidden> Thu, 24 Mar 2016 11:44:22 +1300

The verification of the Stable Release Update for simple-scan has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.