1. Remove the right upper cover. (Measuring the Head Height)
  2. Remove the carriage front lower cover [A].
    When removing the carriage front lower cover, loosen the screws [B].
  3. Remove the carriage front cover [A].
  4. Remove the carriage left cover [A].
  5. Remove the carriage jam sensor (left) [A] with the feeler.

  6. Remove the carriage jam sensor (left) [A].

    After replacing the sensor, adjust the gap between the jam detection feeler and the platen by the extent of 1.8±0.2 mm (approx. 0.071 ± 0.008 inch). (Jam Detection Feeler Height Adjustment)