private void SerialPrintThread()
{
while (true && !this._requestStop)
{
IPrintObject nextModl = PrintQueue.PopAJob();
if (nextModl == null)
{
printEvent.WaitOne();
}
else
{
DoPrintJobWithModel(nextModl);
Thread.Sleep(nextModl.Intervel() * 1000);
}
}
}