Sharing a Lubuntu-connected printer with other computers.
Right-click the icon of the printer. From the drop-down menu, go to Properties --> Policies. Check Enabled, Accepting Jobs and Shared
Then, go to Administration --> Printing --> Server --> Settings. Check Publish Shared Printers Connected to this System
you plan on sharing with Windows:
Go to Menu --> Accessories --> LXTerminal (or Ctrl+Alt+T)
At the prompt, type:
sudo apt install samba smbfs[Enter]
See Sharing Printers with Ubuntu and a Firewall from Reformed Musings. Read How to Share Printers Between Windows, Mac and Linux PCs on a Network from How-To Geek. Check DIY: Quick and easy Samba Print server setup from Tech Republic. See the Official Samba4 HOWTO at Samba.org. See the Samba Documentation and Samba Server Guide at the Ubuntu Community Help Wiki and Samba to Share Files at Linux LXDE Guide.