Dell 5100 Printer won't print at all after installing.

I accidentally uninstalled my Dell 5100cn PCL6 printer from the Devices and Printers window and reinstalled it. But now it does not print, and hasn't even printed the test page.

I reinstalled it in the same window by right clicking and choosing add printer. I chose "Add local printer" since it is connected directly to my computer via printer cable. I selected "Use driver that's currently installed (recommended)".

I have used Windows Update to check for any driver updates for the printer but found none. Driver seems up to date.

I still see the "Test Page" Status: "printing" when looking at "See what's printing" after right clicking on the printer, but there is no activity or any kind coming from the printer.

Other people in my office have been able to print on it.

I have Windows 7.

Please help! I have no idea why it's not printing!