Color "Bleed" Inky Impression

I recently received my Inky Impression 7.3" display and nearly everything seems to work as expected. However, after clearing the display and displaying only a white rectangle, I’m left with a pink-ish tinge around the edges. This remains after running the clean.py located under inky/examples on the GitHub page.

Is this unit defective or is this expected behavior that can be remedied?