SumatraPDF focus is reading rather than printing
Many will suggest you revert to SumatraPDF version 3.0
since there was a significant change to print ONLY as (bloody big) image files after that release (intention was to simplify other user printing complaints)
However I would not suggest all your users are regressed to an earlier version with other performance / security issues etc.
The best alternative (as its open source) would be to “build your own” using latest libs but with the older print function
Alternative is to get users to send print requests to ONE server secured copy of 3.0 using its CLI interface
since in a multiuser environment you may want to retain (subject to licensing terms) some adobe compatibility you could add a section similar to
CommandLine = “Drive on Server:\Program Files\Adobe\Reader 11.0\Reader\acrord32.exe” /N /T "%1"
Name =Print with Adobe Reader 11
Filter = *.pdf