receipt printer

Today at work one of the member asked me if I could make her a Xerox copy of the exercise that she read about in a book and I said yes of course. I made her a lot of copies but while I was trying to make a copy I never checked the computer and I thought everything was fine but the first copy I made came out from the receipt printer. It was my fault for not checking the computer and the copy machine before I start making copies. I always do that I do not know why.