In general, and no print part of the difference between the high and low, and the opposite relief, that is, the printing plate inking part of the obvious concave-shaped in the layout, and no printing part is gloss smooth. When printing, you need to roll the ink on the page, then the ink naturally falls into the indentation of the printing section, and then the surface of the ink rubbed clean (of course, gravure ink is not erased). Then put on the paper with a larger pressure to the indentation of the printing ink embossed on the paper. Anyone who uses such a method of printing is called " Intaglio printing ".