Print management step by step guide: http://technet.microsoft.com/en-us/library/cc753109%28v=ws.10%29.aspx

How to use Group Policy settings to control printers in Active Directory: http://support2.microsoft.com/kb/234270/en-us

AD DS Printer publishing event IDs: http://technet.microsoft.com/en-us/library/cc773824%28v=ws.10%29.aspx

Requirements for proper function of the Directory Services Printer Pruner in an enterprise: http://support2.microsoft.com/kb/246269/en-us

Printer Pruner May Prune All the Print Queue Objects on Its Site: http://support2.microsoft.com/kb/246906