Directory pruning retry
Computer Configuration\Administrative Templates\Printers
Specifies how many times the pruning service on a domain controller repeats its attempt to contact a computer before pruning the computer's printers.
The pruning service periodically contacts computers that have published printers to verify that the printers are still available for use. If a computer does not respond to the contact message, the message is repeated for the specified number of times. If the computer still fails to respond, then the pruning service prunes (deletes from Active Directory) printer objects the computer has published.
By default, the pruning service contacts computers every eight hours and allows two retries before deleting printers from Active Directory. You can use this policy to change the number of retries. To change the interval between attempts, use the Directory Pruning Interval policy.
This policy is used only on domain controllers.