I found some instructions set out below which I attempted to copy to this forum but the picture of the icon didn't travel well. In fact it's a small box with three horizontal lines but the reason for this post is that I can find no icon in the top left hand corner.
Print note
The beauty of OneNote is that you never have to print anything. All your notes are easily searchable and available for you. However, there may be times when you want a hard copy of a page of your notes.
To print a page pf your note:
1. On the page you want to print, tap the icon in the upper-left corner.