I had this happen to me this summer....I have to say that was on the absolute BOTTOM of my list of worries when I got my first snake ahaha. She wasn't too far in though so no harm was done, but still...quite a shock and it took a good while for the adrenaline to go down! I definitely panicked.
Awful place for a snake. Every time I sit at my desk holding a snake, that's where they try to go...into the printer (it appears to be a dark cave to them).
They just can't help themselves...