proof press

Fixed-bed printing press with a cylinder that is moved along an engraved and inked board covered with a sheet of paper.

counterpressure cylinder

Roller that is moved manually to apply sufficient pressure to print the figure.

packing

Material (felt, cardboard, plastic) covering the paper sheet to provide greater cylinder pressure.

press bed

Plate on which the engraved and inked board rests, with the paper sheet on top.

rail

Each of the straight rails along which the counterpressure cylinder moves.

paper sheet

Sheet on which the raised figure is printed.

lever

Device that is pushed down to lift the strip that leads the grippers.

gripper

Each of the metal pieces mounted on a strip that holds the paper in position under the cylinder.