Simple Scan and Sane hang greyed out

[David Oxland]

Sane has not been working at all.
 Simple Scan, XSane, and other associated programs detect and offer installed scanners, choose one then screen greys out after a long wait.
Using Ubuntu 15.04
 check and update every day
This scanner has been functioning commanded by PC and by scanner panel buttons for many months but now hangs with a grey screen and red note "failed to scan Unable to connect to scanner"
 I have tried al sorts but mostly up against a brick wall for the last few weeks.
Printer operates properly.

This might help
david@david-Lenovo-H535:~$ simple-scan -d
[+0.00s] DEBUG: simple-scan.vala:594: Starting Simple Scan 3.16.1.1, PID=10884
[+0.00s] DEBUG: Connecting to session manager
[+0.04s] DEBUG: ui.vala:1880: Loading state from /home/david/.cache/simple-scan/state
[+0.04s] DEBUG: ui.vala:1848: Restoring window to 600x400 pixels
[+0.04s] DEBUG: autosave-manager.vala:64: Loading autosave information
[+0.04s] DEBUG: autosave-manager.vala:259: Waiting to autosave...
[+0.04s] CRITICAL: gtk_event_controller_reset: assertion 'GTK_IS_EVENT_CONTROLLER (controller)' failed
[+0.23s] DEBUG: autosave-manager.vala:281: Autosaving book information
[+0.23s] DEBUG: ui.vala:1971: Saving state to /home/david/.cache/simple-scan/state
[+0.23s] DEBUG: scanner.vala:1446: sane_init () -> SANE_STATUS_GOOD
[+0.23s] DEBUG: scanner.vala:1452: SANE version 1.0.24
[+0.23s] DEBUG: scanner.vala:1513: Requesting redetection of scan devices
[+0.23s] DEBUG: scanner.vala:802: Processing request
[+0.39s] DEBUG: ui.vala:1971: Saving state to /home/david/.cache/simple-scan/state
[+11.32s] DEBUG: scanner.vala:338: sane_get_devices () -> SANE_STATUS_GOOD
[+11.32s] DEBUG: scanner.vala:350: Device: name="brother4:net1;dev2" vendor="Brother" model="*HaroParkScanner" type="k"
[+11.32s] DEBUG: scanner.vala:350: Device: name="brother4:net1;dev1" vendor="Brother" model="*DCP-7065DN" type="DCP7065DN"
[+11.32s] DEBUG: scanner.vala:350: Device: name="brother4:net1;dev0" vendor="Brother" model="*UpstairsScan" type="DCP7065DN"
Expected scanner function.
Simple scan window greyed out/hing had to force quit after 5 min.

Thanks

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: simple-scan 3.16.1.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue May 19 16:45:01 2015
InstallationDate: Installed on 2015-01-29 (110 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 10117
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=94709fac-8bfa-41bf-8d29-24abdd9f77cc ro quiet splash vt.handoff=7
SimpleScanLog:

SourcePackage: simple-scan
UpgradeStatus: Upgraded to vivid on 2015-05-16 (3 days ago)
dmi.bios.date: 11/05/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: I7KT31AUS
dmi.board.vendor: LENOVO
dmi.board.version: 31900058 STD
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.modalias: dmi:bvnLENOVO:bvrI7KT31AUS:bd11/05/2013:svnLENOVO:pn10117:pvrLenovoH535:rvnLENOVO:rn:rvr31900058STD:cvnLENOVO:ct3:cvr:
dmi.product.name: 10117
dmi.product.version: Lenovo H535
dmi.sys.vendor: LENOVO

[penalvch (penalvch)]

David Oxland, thank you for reporting this and helping make Ubuntu better.

As per https://wiki.ubuntu.com/Releases your release is EOL.

If you have an issue in a supported release (ex. 16.04) please file a new report, and feel free to subscribe me to it.

[Dave Goldsbrough (daveg-k)]

At the time of writing this, these 3 packages need to be downloaded and installed.

libsane-common_1.0.26~git20151121-1_all.deb
libsane_1.0.26~git20151121-1_amd64.deb
libjpeg62-turbo_1.5.1-1_amd64.deb

The first two packages can be found in the Debian experimental libs at this link https://packages.debian.org/experimental/libs/

The last package I found in this link https://packages.debian.org/sid/libjpeg62-turbo

In some cases you may need to navigate to an ftp mirror site to actually download. Once downloaded, simply install each package as root i.e sudo dpkg -i package

I have tested with simple-scan, xsane, and scangearmp and all works fine.

[David Oxland (doxland)]

My problem now fixed by going very carefully through the brother brscan4 instructions.
They are quite lengthy and call for a # of preconditions to be met.
 Successfully installed and in service.
This, after an upgrade to Ubuntu 16.04.

[penalvch (penalvch)]

David Oxland, to clarify, what instructions did you use specifically (help.ubuntu.com, man page, Brother's website, etc.)?