You can check whether the machine is deleted from Google Cloud Print in one of the following three ways.
Google Web site ((https://accounts.google.com)
Check that the machine is not displayed.
The factory default user name and password for [Administrator Login] are "admin" and "aaaaaa", respectively.
If you delete the registration information by following the procedure in "Deleting the Registered Information" with the machine not being connected to a network, the registered machine may remain on the Google Cloud Print administrator screen ((https://www.google.com/cloudprint). In such a case, delete the machine on the Google Cloud Print administrator screen.
If you deleted the registered machine on the Google Cloud Print administrator screen ((https://www.google.com/cloudprint), the registration information remains in the machine. In such a case, delete the registration information from the operator panel of the machine.
The factory default administrator name and password are "admin" and "aaaaaa" respectively.