To solve the problem that a binding part is easy to be damaged when a bound document like a book is copied, since a surface to be copied is pressed against a copying machine while the document is bent at the binding part.

The surface of the copying machine used to make a read is formed from the top surface 3 to the flank 4 to form a corner and the binding part is pressed against the corner to take a copy, so that the binding part is less bent and is made less easy to be damaged.