Explanation/Reference:
Explanation:
If you navigate to the Security tab of the Print Server Properties you will find the Permissions that you can set to Allow which will provide Group1 with the ability to manage Printer1.
Set permissions for print servers
Open Devices and Printers.

Click Print Server Properties.

On the Security tab, under Group or users names, click a user or group for which you want to set

permissions.
Under Permissions for<user or group name>, select the Allow or Deny check boxes for the permissions

listed as needed.
To edit Special permissions, click Advanced.

On the Permissions tab, click a user group, and then click Edit.

In the Permission Entry dialog box, select the Allow or Deny check boxes for the permissions that you

want to edit.
References:https://windowsserveressentials.com/2012/10/24/windows-server-2012-essentials-add-a- network-printer/