Important Tips for maintenance and care of the SAM4s ER-390M Cash Register.
Don't operate the SAM4s ER-390M cash register without the proper size paper in the printer. Operating without paper will lead to damage of the printer.
We suggest leaving your cash register drawer open when you are closed. That way in the event of a break in the thief won't have to pry open the drawer just to find out there is no money in there in the first place.