Subject

    Computer Science

    Topic

    Computer Hardware

    During dot-matrix printer maintenance, which part should not be lubricated?

    a)
    Platen assembly
    b)
    Carriage belt/pulley
    c)
    Print-head pins
    d)
    Paper-advance bushings

    Explanation

    Print-head pins are precision parts and collect dust if oiled, leading to jams and uneven printing. Lubricate only per the service manual (rails/bushings). The platen should be cleaned, not greased.

    Find Tutors

    View all Tutors