Depending on the location where the shared folder is created, security and convenience vary.
To operate the shared folder from the scanners or other computers, the following reading and changing permissions for the folder are required.
Sharing tab > Advanced Sharing > Permissions
It controls the network access permission of the shared folder.
Access permission of Security tab
It controls permission of the network access and local access of the shared folder.
When you set Everyone to the shared folder that is created on the desktop, as an example of creating a shared folder, all users who can access the computer will be permitted access.
However, the user who does not have authority cannot access them because the desktop (folder) is under the control of the user folder, and then the security settings of the user folder are handed down to it. The user who is permitted access on the Security tab (user logged in and administrator in this case) can operate the folder.
See below to create the proper location.
This example is when creating the "scan_folder" folder.