Error Code -30 or -41 Printer Not Activated in DIAdem

Updated Jul 31, 2023

Reported In


  • DIAdem

Issue Details

When attempting to use the DIAdem PDF Export printer I receive the one of the following errors:
  • Printer Not Activated, Error Code -30
  • Printer Not Activated, Error Code -41


These errors can be caused by compatibility issues, problems with the Windows ports or by external software interfering with DIAdem. These are steps you can try to recover from the errors:
  • Make sure your version of DIAdem is compatible with your operating system.  You can refer to NI Hardware and Software Operating System Compatibility or the readme files found in the DIAdem Release Notes to verify the compatibility between DIAdem and Windows.
  • The DIAdem PDF Export printer is only usable from the REPORT panel in DIAdem. If you are trying to use this printer from any other software, this message will occur.
  • Make sure external software, mainly security software like Carbon Black, are not restricting DIAdem to perform printing operations.
  • Once you are have checked the compatibility, take the following steps:
    1. Close all DIAdem Versions.
    2. Go to Devices and Printers in Windows Control Panel and delete the "DIAdem PDF Export" printer.
    3. Relaunch DIAdem with admin rights.
  • If above fails, execute DIAdemStart.Exe on the DIAdem program path (C:\Program Files\National Instruments\<DIAdem version> as administrator.
  • There have been cases in which a change of the printer's port was necessary. If the previous steps did not work, try the following:
(Solution is given for Windows 10, steps can slightly differ for different versions of Windows):
  1. Log in as Windows administrator
  2. Go to Settings, Printers & scanners 
  3. Click on DIAdem PDF Export, select Manage and click on Printer Properties
  4. In the new window, select Ports and click the Add Port button
  5. Select Local Port and click New port
  6. Enter a port name, e.g. DIAdemPort, and click OK
  7. Make sure the new port is checked and click Apply
  8. Restart the computer to make sure all changes take effect

Additional Information

DIAdem uses a third party tool named Amyuni PDF Converter. Newer versions of DIAdem may use newer versions of Amyuni PDF Converter which may not be compatible with older DIAdem versions. You can check the installed version by going to REPORT>>Print>>Printer...>>DIAdem PDF Export>>Properties: