Ricoh FT4480 Field Service Manual page 123

15 MARCH 1987
2. Clean or replace each corona wire. Also clean the corona units and
the cleaning unit.
3. Actuate the front safety switch.
4. Remove the rear cover (2 screws).
5. Plug the switching board into connector CN210 of the main board as
shown.
NOTE: All the switches on the switching board [A] should be off.
6. Install the drum shoe and adapter on the drum shaft with the lip to
the rear.
7. Route the shoe lead wire out through the development unit opening.
8. Connect the drum shoe and the digital multimeter leads as shown in
the next page. Positive lead to the red lead clip. Negative lead
and the black lead clip to the machine ground.
9. Open the Manual Feed table to keep the Start key red even if the
machine is warmed up.
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