I mean scented markers are a thing (or are they gone now because they’re “too toxic”?) so scented (or flavored) printer toner doesn’t seem too far fetched
and yes I am one of those people who enjoyed the smell of freshly laser printed pages
Scented markers, as well as pencils, are still a thing.
You can also get scented paper, but it seems mostly thicker paper meant as drawer liners.
Maybe you're not old enough to have cultivated a taste for (or addiction to) the smell of fresh ditto printed pages.
Also scented paper
Maybe offer unique toner scents to companies as part of their brand identity. Imagine all letters from Jack Wolfskin smelling like pine cones, or the acceptance letter from a surf school smelling like the ocean.