Printing presses and printing machines, and parts thereof namely, web-fed and sheet-fed printing presses for letterpress, planographic and gravure printing, sleeve-shaped and solid cylindrical printing forms and printing-image transfer carriers, mechanical changing apparatus, namely, printing form makeready and mounting mechanics for sleeve-shaped and film-shaped printing forms and printed-image retouching carriers as parts of printing presses, image-setting apparatuses, namely, imaging heads...