If the system doesn't ask you to give accessibility permissions to it, then it should be fine. Otherwise you would see it in the Accessibility preferences with an unchecked checkbox.
This is – probably – because you have three sections where the pagination restarts with 1 at the beginning of each section. (See this Microsoft article.) Please check the pagination of your document to see if this is the case.
I made a test document with…
- Section 1: page 1 to page 4
- Section 2: page 1 to page 12
When I run the script on that document it prints page 1 thru page 4 of section 1, and page 1 thru page 4 of section 2 (= total 8 pages).
The same happens when I print via Word’s Print dialog. But: In the Print dialog I can set a custom page range. In that case the desired range is: p1s1-p4s1 (= page 1 of section 1 to page 4 of section 1)
>>> The problem is, I cannot find a possibility to set a custom print range p1s1-p4s1 in AppleScript.
I tried it then with a Word macro (the correct expression is Pages:="p1s1-p4s1") but I hit the same problem as you: “Named argument not found” for PrintZoomColumn and PrintZoomRow.
It seems, these arguments are not implemented with the Mac version of Word. Probably because the page layout is handled by the printer driver.
So, I’m afraid I can’t help you here. But, honestly, I have no clue of Microsoft Software, so there is a good chance that another forum member knows the obvious solution, for example @JMichaelTX or @ccstone.
If no solution can be found, we still have the possibility to automate it via UI scripting. But this should be the last resort.