Printing To A HP Laserjet 1320 After Upgrading To Windoxs XP SP2

Hello, I Have A Interesting Scenario Brewing & I Would Like To Get A Grasp On It Before This Gets Out Of Hand. I’m A IT Consultant Working FOr Pepsico & The Company Is in The Process Of Upgrading ALL Windows XP Equipment ( Desktops & Laptops ) To SP2. I’ve Noticed That ALL Of The Sudden All End-Users That Have Local Printers In This Case HP LJ 1320s Can No Longer Print. 1. Has Anyone Seen This Issue 2. If This Is Resolvable Can You Provide Me SOme Insight Towards A Permanent Resolution.