Quite the same problem here, got a samsung printer,
When printing a report, the first print works but then the others don't. The print job then instantly disapear from printer's job list.
The only thing that works is to click on printer's properties (from the lazreport print dialog) and just press OK... then print again, and now it works.
It's super weird, I tried to uninstall the printer, etc...
I got three computers where the soft is installed (win8 x64, win8 32, and win10) the same issue is present.
All was working fine during 2 years, I don't understand why suddently it stopped working like 2 weeks ago...
Btw : I got a message from the samsung printer with a SPL Error (incomplete session by timeout) (h6fwsim/os_hook)