The Entrance aspect of the bottom sheet is coated with clay. A person applies stress when composing on or typing mechanically onto the top sheet. This pressure permits the ink to react Along with the clay, which copies the markings on the top sheet on to the bottom just one. https://fcpzgmr.wikinarration.com/5986964/how_much_you_need_to_expect_you_ll_pay_for_a_good_imprint