They may do, after deducting a small fee, if you have only had the printer for a few days and intend to change to a higher priced item.
Explain politly, that you feel you have made a mistake, and want to upgrade, (They have done this for me).
The returned printer will then be put back on sale as a used/demo. model at a lower price. good luck and let us know how you get on. J.