Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en copy presses300265594copy presscopy-pressescopying pressesletter copying pressletter copying pressespresses, copypresses, copyingpresses, letter copying Reprographic equipment invented in 1780 by James Watt. A sheet or sheets of copying paper would be pressed against original documents, and ink would be transferred. Letter copying presses were made in various forms: roller, bed and platen, and portable models. Presses comprising a platen and base, often a screw press, used to copy an original document. In the 18th century, the original was pressed to a dampened tissue-weight paper, producing a copy transfer; the image was a mirror image of the original, but could be read through the back of the tissue. In the 19th century, the original was often written with a special copying ink that was formulated to allow easy and repeated transfer. For presses of similar design, used to press newly bound books, use "book presses." copy presses (traducció pendent) màquina copiadora 2026-03-30 20:53:22