名詞 platen:

1. work table of a machine tool
2. the flat plate of a printing press that presses the paper against the type
3. the roller on a typewriter against which the keys strike

plat.en

n.（名詞）
The roller in a typewriter that serves as the backing for the paper against which the type bars strike.
滾筒：打字機中當(dāng)作紙的襯墊物由打字棒擊紙的滾筒
Computer Science The roller in a computer printer against which the print head strikes.
【計算機科學(xué)】 壓紙卷筒：計算機打印機中被打印頭撞擊的滾筒
A flat plate or rolling cylinder in a printing press that positions the paper and holds it against the inked type.
壓印盤：印刷機中固定和支持紙張而使有油墨的鉛字壓印的平板或滾筒

來源：
Middle English plateine [paten]
中古英語 plateine [板]
from Old French platine [metal plate]
源自 古法語 platine [金屬盤]
from plat [flat] * see plate
源自 plat [平坦的] *參見 plate