Invalid parameters when CreateFilmSession of DicomPrintScu

Hi Leadtools staff!
I am using your tools to send my Dicom image to Dicom printer. I have followed this example at the address:
http://www.leadtools.com/Help/LEADTOOLS/v16/DH/DI/Leadtools.Dicom~Leadtools.Dicom.DicomPrintScu~Associate(String,Int32,String,String,DicomPrintScuPrintManagementClassFlags).html

But When running to the code of printSCU.CreateFilmSession(filmSessionParameters, true); The program raise an error of "Invalid Parameter.."
I don't know why? What must I do to overcome this problem so that I can CreateFilmSession Successfully.
I am using C# in VS2008 to run this example.
Thanks in advance!
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Here is the brief of code containing the code of rasing this Error

// Create a Film Session
DicomFilmSessionParameters filmSessionParameters = printSCU.GetDefaultFilmSessionParameters();
filmSessionParameters.NumberOfCopies = 1;

//Over here we can set some other film session parameters before creating the film session.
//To set these parameters we can access one or more of these properties:
//DicomFilmSessionParameters.NumberOfCopies
//DicomFilmSessionParameters.MemoryAllocation
//DicomFilmSessionParameters.OwnerID
//DicomFilmSessionParameters.PrintPriority
//DicomFilmSessionParameters.MediumType

//DicomFilmSessionParameters.FilmSessionLabel

printSCU.CreateFilmSession(filmSessionParameters, true);

Hello,

For filmSessionParamters, all the values are "" (empty strings) except for two of them.  MemoryAllocation is -1 and NumberOfCopies is -1.  What DICOM server are you using?  Try setting them to empty strings and set MemroyAllocation to -1 and NumberOfCopies to 1.

I don't use Dicom Server or PACS Server. My application is very simple. I have a Dicom Dataset and I want to print Dicom Image in the Dicom Dataset to a Dicom Printer. So I thinks I need only your code at the address is enough.
Is my idea right? If not What should I do so that I can print a Dicom Image to a Dicom Printer.
Thanks in advance!

What values are you passing to the DicomPrintScu.Associate() method?  I think you are passing the IP/AE Title for the DICOM printer, correct?  I think it should be ok of the DICOM printer has an SCP.

I have to solved that problem buy using hints and guide at another topic.
Thanks for your timely helps!