System.Printing检测打印机状态

[lgx040605112]

C# .net framwork 3.0+版本中有 System.Printing可以检测打印机状态，但是我检测的时候返回的状态都是None
求哪位大侠用过System.Printing。使用时需添加System.Printing引用
我的代码如下：

LocalPrintServer myPS = new LocalPrintServer();
PrintQueueCollection myPrintQueues = myPS.GetPrintQueues();
foreach (PrintQueue pq in myPrintQueues)
{
pq.Refresh();
statusReport = "打印机：" + pq.Name + "状态：" + pq.QueueStatus;
PrintServer ps = pq.HostingPrintServer;
Console.WriteLine(statusReport);
Console.WriteLine(pq.ShareName);
Console.WriteLine(pq.QueueDriver.Name);
Console.WriteLine(pq.QueuePort.Name);

foreach (var myPrintQueue in pq.GetPrintJobInfoCollection())
{
PrintJobStatus status = myPrintQueue.JobStatus;
Console.WriteLine(status);
}
}

[shmily0222]

同问。。。今天纠结一上午了。。。