how i can check printer status before sending a job ?

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C#

Hello.
I write following code for get printer status in constructor class.my printers are turn on but are no paper or low toner or etc.
i want get errors for low paper or no paper or no toner and etc runtime.

class PrinterStatus
    {

        public PrinterStatus()
        {
            String statusReport = "";
            PrintServer myPS = new PrintServer();
            PrintQueueCollection myPrintQueues = myPS.GetPrintQueues();
            foreach (PrintQueue pq in myPrintQueues)
            {
                pq.Refresh();
                {
                    statusReport = pq.Name;
                    if ((pq.QueueStatus & PrintQueueStatus.PaperProblem) == PrintQueueStatus.PaperProblem)
                    {
                        statusReport = statusReport + "Has a paper problem. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.NoToner) == PrintQueueStatus.NoToner)
                    {
                        statusReport = statusReport + "Is out of toner. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.DoorOpen) == PrintQueueStatus.DoorOpen)
                    {
                        statusReport = statusReport + "Has an open door. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.Error) == PrintQueueStatus.Error)
                    {
                        statusReport = statusReport + "Is in an error state. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.NotAvailable) == PrintQueueStatus.NotAvailable)
                    {
                        statusReport = statusReport + "Is not available. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.Offline) == PrintQueueStatus.Offline)
                    {
                        statusReport = statusReport + "Is off line. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.OutOfMemory) == PrintQueueStatus.OutOfMemory)
                    {
                        statusReport = statusReport + "Is out of memory. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.PaperOut) == PrintQueueStatus.PaperOut)
                    {
                        statusReport = statusReport + "Is out of paper. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.OutputBinFull) == PrintQueueStatus.OutputBinFull)
                    {
                        statusReport = statusReport + "Has a full output bin. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.PaperJam) == PrintQueueStatus.PaperJam)
                    {
                        statusReport = statusReport + "Has a paper jam. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.Paused) == PrintQueueStatus.Paused)
                    {
                        statusReport = statusReport + "Is paused. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.TonerLow) == PrintQueueStatus.TonerLow)
                    {
                        statusReport = statusReport + "Is low on toner. ";
                    }
                    if ((pq.QueueStatus & PrintQueueStatus.UserIntervention) == PrintQueueStatus.UserIntervention)
                    {
                        statusReport = statusReport + "Needs user intervention. ";
                    }
                }
            }// end for each print queue 
        }
    }

but at runtime Isoutofpaper and paperproblem properties and etc are false.
Thanks.