Imprint By Movement Of Record-medium Against Type-face Patents (Class 400/153)
By hammer impacting record-medium against type-face on type-head (e.g., type shuttle, etc.) (Class 400/154)
Including platen for moving record-medium against type-face and mechanism for feeding record-medium (Class 400/158)
Including platen for moving record-medium against type-face and mechanism for inking type-face (Class 400/159)
  • Character set printing means utilizing rolling pressure contact for printing
    Patent number: 4542998
    Abstract: A printing apparatus is provided which utilizes rolling pressure contact for printing, and includes a plurality of sets of serially arranged character elements mounted for movement on the external surface of a printing drum. Movement of the sets to place a desired character into printing position is accomplished by controlling the speed of a motor driving a pulley connected by cable to a given character set, relative to the speed of a motor driving the printing drum in rotational movement.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: September 24, 1985
    Assignee: NCR Corporation
    Inventors: Miroslav S. Osmera, Van-Minh Huynh, Trevor A. Calnek