Ricoh FT4430 Service Manual page 166

3. Color Toner End Sensor Replacement
[c']
1. Turn off the main switch and remove the following parts:
- Development unit
- Charge corona unit (1 screw)
- Drum stay (1 screw and 1 knob)
- Cleaning unit
- Drum flange and drum - should be covered with a shielding sleeve
- Toner shield glass.
2. Remove the connector cover [A] (1 screw).
3. Remove the sensor bracket [B] (1 screw).
4. Remove the color toner end sensor [C] (1 screw).
5. Reinstall the above parts.
NOTE: Do not overtighten the screw when securing the new sensor.
[B]
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16 April '88