typebars

/ˈtaɪpˌbɑrz/
noun
  1. The metal bars in a typewriter that carry the type characters and strike the ribbon to print letters on paper.
    • Each typebar in the machine had a different letter on its end.
    • She cleaned the typebars carefully to remove the dried ink.
    • The old typewriter's typebars jammed when I typed too quickly.