Ricoh FT4430 Service Manual page 210

Slide the drum shoe [A] to its rear limit as shown (X),
Position the drum shoe so that the axis of the current sensing plate is
aligned with the charge corona wire as shown.
3 . Reinstall the drum stay (1 screw and 1 knob) and the charge corona unit.
4 .
Select the dc 200 VA range of the digital multimeter [B].
5 . Turn on SW 8 of the switching board.
Turn on the main switch and note the reading. (Wait 30 seconds for the
6 .
current to stabilize.)
7 . Turn off the main switch, move the drum shoe to the front as shown (Y),
and repeat steps 3 to 5.
(Y)
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16 April '88