Samba printer on CUPS with authorization

Just set URL like this

• smb://WORKGROUP/WINDOWSNETBIOSNAME/printersharename
  
• smb://username:password@WORKGROUP/WINDOWSNETBIOSNAME/printersharename
  
• smb://username:password@WINDOWSNETBIOSNAME/printersharename

After creating printer your username and password was be hidden from UI, but stored to printer access.