C.ITOH 1550S EP User Manual page 45

(2) Cleaning
(a) Cleaning Points and Method
I) Detector
Brush off any paper dust on and around the detector. (Refer to Fig. 26)
Detector
Fig. 26 Home (left-most carriage) Position Sensor
2) The Head Top
Detach the ribbon, and remove the head as described later. Next, remove ribbon blocks
and paper particles from the head top with the bush (option).
-41-