Xerox needs “modify” permission to delete its .LCK folders.
In smb.conf put these two lines:
[global]
...
...
vfs objects = acl_xattr
map acl inherit = yes
As a home deployment, it is not needed to follow all of the instructions on the wiki.
Reference: https://lists.samba.org/archive/samba/2018-November/219452.html
https://wiki.samba.org/index.php/Setting_up_a_Share_Using_Windows_ACLs
This is tested on samba 4.14.6-1.