Comment # 17 on bug 1052793 from Andreas Seeg

We seem to have hit the same problem with 42.3: Printing from KDE applications
fails silently.

We have changed our configuration (two cups servers in cups-browsed.conf) to a
single server in cups-browsed.conf, and then to no entry in cups-browsed.conf
but a single entry in client.conf, and the problem still persists. We do not
employ a round robin dns. 

Printing from Evince or other non-KDE applications works fine.

Printing with an old 42.1 system via the same print servers using KDE
applications works fine.

We did "zypper in
http://download.opensuse.org/repositories/home:/alarrosa:/branches:/openSUSE:/Leap:/42.3:/Update/standard/x86_64/libQt5PrintSupport5-5.6.2-8.1.x86_64.rpm"
and I have attached the output of two application (okular and kate) after this
change (okular and kate output before/after
libQt5PrintSupport5-5.6.2-8.1.x86_64.rpm). 
I chose to keep a single server in cups-browsed.conf and no entry in
client.conf and restarted cups and cups-browsed after installing the package.

Printing to PDF and then using Evince to print the resulting PDF can be used as
a workaround. We did not have a local printer to test if the problem expands to
local printing, too, so this problem might only affect printing via remote CUPS
servers.