[sane-devel] Unable to scan with SAMSUNG SCX 4300 under Kubuntu 17.10, 18.04 and 18.10 (Dev) but printing function OK

[Xavier (Perso)]

Dear all.

I am Kubuntu advanced user.

Previously under Kubuntu 17.04, I used without any problem a 
multi-function device, SAMSUNG SCX 4300 for printing and scanning, via 
an USB interface. Printing and scanning work fine.

Therefore, when upgrading to KUBUNTU 17.10 (Artful), then to KUBUNTU 
18.04 (Bionic) and now under 18.10 (Cosmic), the printing function is 
working properly but not the scanning function.

I tried many things to fix the issue based on discussions on the mailing 
list but without success.

For that reason, I keep the unsupported Zesty version only for scanning.

So, I contact the mailing list for some support to fix that issue.

I provide below some information about my config.

Thank you for your ideas.

Cheers.Xavier

======================================================

$ lsusb
...
Bus 001 Device 002: ID 04e8:342e Samsung Electronics Co., Ltd
...

$ scanimage -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

$ sudo scanimage -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

$ sane-find-scanner

   # sane-find-scanner will now attempt to detect your scanner. If the
   # result is different from what you expected, first make sure your
   # scanner is powered up and properly connected to your computer.

   # No SCSI scanners found. If you expected something different, make 
sure that
   # you have loaded a kernel SCSI driver for your SCSI adapter.

could not open USB device 0x1d6b/0x0003 at 002:001: Access denied 
(insufficient permissions)
could not open USB device 0x8087/0x0a2a at 001:004: Access denied 
(insufficient permissions)
could not open USB device 0x0bda/0x57cb at 001:003: Access denied 
(insufficient permissions)
found USB scanner (vendor=0x04e8 [Samsung], product=0x342e [SCX-4300 
Series]) at libusb:001:002
could not open USB device 0x1d6b/0x0002 at 001:001: Access denied 
(insufficient permissions)
   # Your USB scanner was (probably) detected. It may or may not be 
supported by
   # SANE. Try scanimage -L and read the backend's manpage.

   # Not checking for parallel port scanners.

   # Most Scanners connected to the parallel port or other proprietary ports
   # can't be detected by this program.

   # You may want to run this program as root to find all devices. Once you
   # found the scanner devices, be sure to adjust access permissions as
   # necessary.

$uname -a
Linux xavier-UX305CA 4.15.0-21-generic #22-Ubuntu SMP Tue May 1 13:26:51 
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

$xsane -v
xsane-0.999 (c) 1998-2013 Oliver Rauch
   Courrier électronique : Oliver.Rauch at xsane.org
   paquet xsane-0.999
   compilé avec GTK-2.24.31
   avec fonction de gestion de la couleur
   avec support GIMP, compilé avec GIMP-2.8.20
   Formats de sortie de XSane : jpeg, pdf(compr.), png, pnm, ps(compr.), 
tiff, txt

$ dpkg -l |grep printer-driver-splix
ii  printer-driver-splix 2.0.0+svn315-6fakesync1                     
amd64        Driver for Samsung and Xerox SPL2 and SPLc laser printers

-- 
Xavier Besnard Chez Mme Espesset Paulette Place de la halle 82330 Varen 
Tél: 06 49 37 44 17 Courriel: xavier.besnard at neuf.fr