I looked at your documents. They are documents containing pictures of documents.
Just as a mechanic likely cannot tell you what is wrong with your car by looking at a very high-res picture of your car, I can't tell what is going on with your document by looking at a picture. I doubt anyone else can, either.
Sometimes a picture will help, but not really with this.

Try, instead, posting the actual document that is not correctly printing.
Attach a Sample File Demonstrating the Problem - Here's How


In an earlier post, I noted some very wide top and right margins for the postcard. Those margins are good for many documents, but with the limited size of a postcard they really limit your content. They might also be what you need to have it print on your printer.