Access Denied trying to purge printqueue in C#

I'm trying to make a method in C# that empties all items in a print queue. Below is my code:

LocalPrintServer localPrintServer = new LocalPrintServer(PrintSystemDesiredAccess.AdministratePrinter); 
PrintQueue printQueue = localPrintServer.GetPrintQueue(printerName);

if (printQueue.NumberOfJobs > 0)
{
    printQueue.Purge();
}

When this code runs, on the localPrintServer constructor, the app throws this error: "An exception occurred while creating the PrintServer object. Win32 error: Access is denied."

That constructor has a few overloads (including sending no parameters). Trying any of those, I get past that line, but when I get to the printQueue.Purge() call, I get the same access denied message as listed above.

Looking for suggestions of how / what I can do to get around this. I can manually delete the print jobs from my computer. I'm not sure if the app runs with the same access I have nor how to check that.