cups encrypt

This parameter is only applicable if is set to cups and if you use CUPS newer than 1.0.x.It is used to define whether or not Samba should use encryption when talking to the CUPS server. Possible values are auto, yes and no
When set to auto we will try to do a TLS handshake on each CUPS connection setup. If that fails, we will fall back to unencrypted operation.

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

cups encrypt

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Samba\smb_conf\cups encrypt
Value Namecups encrypt
Value TypeREG_SZ
Default Valueno

samba.admx

Administrative Templates (Computers)