Noun
The part of a printing press which presses the paper against the type and by which the impression is made.
Hence, an analogous part of a typewriter, on which the paper rests to receive an impression.
The movable table of a machine tool, as a planer, on which the work is fastened, and presented to the action of the tool; -- also called table.
Source: Webster's dictionaryAckerman invented nonstoparagraphing as a space-saving measure. citation When the typist comes to the end of a paragraph, they simply moved the platen down one line. Source: Internet
A small rotating handle is used called the 'rounce' to do this, and the impression is made with a screw that transmits pressure through the platen. Source: Internet
Gutenberg adapted the construction so that the pressing power exerted by the platen on the paper was now applied both evenly and with the required sudden elasticity. Source: Internet
In Epson printers, there is typically a large absorption pad in a pan underneath the paper feed platen. Source: Internet
The Selectric used a system of latches, metal tapes, and pulleys driven by an electric motor to rotate the ball into the correct position and then strike it against the ribbon and platen. Source: Internet
"I was experimenting," he said, "on an automatic method of recording telegraph messages on a disk of paper laid on a revolving platen, exactly the same as the disk talking-machine of to-day. Source: Internet