How can i turn it on?

When I press the on , is the sd side that turns on not the printer
Alice, July 2016


done
Alice. YOU know what you are talking about but, as you have not actually written it into you post, we don't have a clue.

Facepalm, July 2016
Alice - your problem statement lacks the clarity that gives understanding...

What is the SD side?
What machine - make and model?

Best to have another go.

Good Luck..., July 2016