HP smart tank 515 doesn't print page border (using Microsoft word)

[Dalli]

Hey there, We bought a new HP smart tank 515, after a bit of struggle to stop it from being after setting it up, I wanted to print out some of my documents instead of the testing pages, and to my surprise it doesn't even print the border of the page, here is a scenario:

I usually use a smaller margin for my docs (and yes my old Epson printer used to print them fine).

Oh and also normal margin don't print too, but I need this margin to work because all of my older document use it.

Now when I launching the print option from Word, the preview doesn't show the border like in the previous pic (the editing page).

I thought about tweaking the settings of the printer, maybe I can manually edit its default margin but I didn't even find the other usual printer settings, just these useless settings

Also the printers web interface doesn't seem to be helpful for this matter

But this is the craziest part for me, in the printer's specification it says that it's capable of printing on basically the whole A4 page.

Oh also I tried to make a copy of an existing document with a small border margin, and it did copy it properly, so now I'm more confused than ever, where is the problem coming from? Word? the printer? the printer's settings in Word? PLEASE HELP!!! thanks in advance.