If you delete a printing device, you will not be able to use it but its data will be permanently stored in the MyQ database.
It is not possible to add the same device twice as its MAC address is unique and there cannot be two devices with an identical MAC address in the system. If you want to use the deleted device again, you have to undelete and reactivate it.
To delete selected printing devices:
Select the printing devices you want to delete from the list on the Printers main tab.
Click Actions. The Actions drop-down box appears.
Click Delete. You can find the deleted printing devices under the Deleted search option.
To undelete selected printing devices:
On the group tab on the left side of the Printers main tab, under Searches, select the Deleted search option. The list of deleted printing devices appears.
On the list, select the printing devices that you want to undelete, and then click Actions. The Actions drop-down box appears.
In the drop-down box, click Undelete. The undeleted printing devices are not active; you have to activate them again.