User-Agent:       Mozilla/5.0 (X11; Linux i686; rv:34.0) Gecko/20100101
Firefox/34.0
Build Identifier: 

The application scangearmp2 is downloaded from
http://de.canon.ch/Support/Consumer_Products/products/Fax__Multifunctionals/InkJet/PIXMA_MG_series/PIXMA_MG7550.aspx?type=download&language=&os=Linux 
Installation with YaST or install.sh does not produce any error.
But a start results in a memory access error. 
dmesg shows
scangearmp2[9080]: segfault at 30 ip 00007fa0cf0f1294 sp 00007ffff2277a20 error
4 in libpthread-2.18.so[7fa0cf0e7000+18000]
This error occurres with or withour a Canon Pixma MG7550 attached / switched
on.

Reproducible: Always

Steps to Reproduce:
1.install scangearmp2
2.run scangearmp2
3.
Actual Results:  
Application crashes with error message "Speicherzugriffsfehler" (memory access
error)

Expected Results:  
The application should be up and running, allowing to scan images

I reported the error to Canon but I was informed that this is an error of the
distribution (in libpthread-2.18.so) and that I should get help there.

Unfortunately SANE does not yet support the Canon pixma MG7550