I am using LO6 with Windows 10. Since I switched to LO6, it doesn’t print from Writer. All other software prints, just not LO.
See also LibreOffice 6 Writer won't print...other LO apps will
For what reason was this new thread created a few days later?
I upgraded to the current version of LO and its works fine.
I switched form LO5. LO 6.0.3 and 6.0.4 doesn’t print in Writer. No printer works in writer. Calc is OK.
If something goes wrong for one user while it works without problems for others on the same OS:
Consider first, the problem is local to your system.
Did you update (and generally maintain) your system thoroughly?
Are there any specifics concerning your templates for ‘Writer’ documents?
…
You may uninstall the failing software completely (by OS means) and do a fresh install.
Probably a slightly less “fresh” version can do better for you. (You may not need the latest features.)
Concerning LibO you may first try a fresh user profile. You can temporarily use a virgin user profile as described here.