Ricoh FT4480 Field Service Manual page 67

15 MARCH 1987
2. DEVELOPMENT AND TONER SUPPLY
- DEVELOPER REPLACEMENT -
CAUTION: - Be careful not to bend the bias terminal.
- Be careful not to damage the upper brush seal.
- After removing used developer, clean the drive gears and end magnets.
1.
Take out the development unit and remove the toner tank (2 screws).
2.
Remove the development brush cover [A] (2 screws) and clean it.
3. Set the development unit on a large sheet of paper [B] with the unit's
inlet facing downward.
4. Turn the paddle roller knob [C] counterclockwise. The developer will
fall out onto the paper.
5.
Hold the unit at an angle and dump out the developer that has
collected at the ends of the development unit.
6. Repeat the above steps until you have removed all of the developer.
7. Clean the development end magnets.
8. Turn the unit right-side up and pour in one bottle of developer (1 kg).
9. Put the used developer into the empty bottle or disposal bag and
dispose it according to the local regulations.
10. Reassemble the toner tank (2 screws) and replace the development
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