Thanks for your inquiry. Could you please attach your input Word document here for testing? I will investigate the issue on my side and provide you more information.
Example attached. Running this code on a system without a printer installed will throw the exception in 14.9.
Thanks for sharing the detail. I have tested the scenario and have managed to reproduce the same issue at my side. For the sake of correction, I have logged this problem in our issue tracking system as WORDSNET-10957. I have linked this forum thread to the same issue and you will be notified via this forum thread once this issue is resolved.
We apologize for your inconvenience.