drum printer definition by American Heritage Dictionary
drum printer - Computer Definition
(1) A wide-format inkjet printer. The paper is taped onto a drum for precise alignment to the nozzles.
(2) An old line printer technology that used formed character images around a cylindrical drum as its printing mechanism. When the desired character for the selected position rotated around to the hammer line, the hammer hit the paper from behind and pushed it into the ribbon and onto the character.