I forgot to press the 'post reply' on the above message yesterday so apologies for that. After reading your post I downloaded the MS app and fixed my downloaded model of the J94 and re-printed it, this time it printed as you would expect. The pictures of it are below, doesn't look too bad and that vertical line I mentioned is not present on my print as per the model. I'm only mentioning it as it may mean you need to adjust something on your printer, something maybe you could query with the manufacturers otherwise you may get aberrations like that on other models...
Happily collecting things all my life...