The invention provides a process for the production of a cementious material. A needle cover is connected to a top of the second end of the presser and no gap is defined between the needle cover and the top of the presser. The method supplies the signature and the digital content to a device. An image of the original is formed on a paper, which corresponds to the original size determined by the determining unit and is fed from the paper supplying unit. At the copy source, the volume 2A is allocated to a dummy volume 2B, and at the copy target, an unused volume 1C is allocated to a dummy volume 1B.