A technique to mimeograph texts and images by using a printing plate. By pressing the inked plate on a print substrate (mostly paper but also fabric etc.) a print is produced. There are three main printing techniques: Letterpress printing, planography and gravure printing as well as screen-printing or porous printing. In letterpress printing, the printing elements are raised. This technique is mainly used for wood carvings and linocuts. The same technique is also applied for typographical printing. In planography, the printing and non-printing elements are almost on the same level. This printing technique includes lithography and zincography. In gravure printing, the printing elements have the form of small recesses on the surface of the printing plate. Copper engraving and etching belong to this technique. In screen-printing, a porous mesh (fabric) is used as the printing form. A stencil applied on the screen defines the image to be printed. The ink is then pressed through the mesh and on the print substrate. On the fabric, the printing elements remain open, whereas non-printing parts are covered by the stencil.