platen
/ˈplætən/noun
1
- the plate in a small letterpress printing press which presses the paper against the type压印盘, 压印板。
2
- the cylindrical roller in a typewriter against which the paper is held（打字机上的）压纸卷筒。
词源
late 16th cent.: from French platine 'flat piece' from plat 'flat'.