Event ID - 50

Event Id50
SourcePrint
DescriptionPrintQueue <print queue name> was deleted.
Event InformationAll of the PrintQueue objects published by print servers on the same site as a given domain controller (DC) may be detected as orphaned and deleted, even though the corresponding printers are available in the domain.
When this occurs, Printer Pruner writes a System event for each PrintQueue object that is detected as an orphan. This can accumulate rapidly for sites with large numbers of published print queues. If there are many published printers on the site, the System event log may become filled with Printer Pruner events.
Reference LinksPrinter Pruner detects that a given PrintQueue object is orphaned by contacting the print server and comparing the Printer object to the Active Directory PrintQueue object. Because Printer Pruner runs only on DCs, if a DC is taken off the network, Printer Pruner is unable to contact any print servers and marks all published printers as being orphaned.
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