Developer - Ricoh B121 Service Manual

3.6.6 DEVELOPER

[A]
[B]
B121R975.WMF
1. PCU ( 3.6.1)
2. To let the toner fall to the development section, gently tap about eight different
spots on the top of the PCU housing with a screwdriver. Each spot must be
approximately at an equal distance from the next spot.
3. Reinstall the PCU in the copier.
4. Turn the main switch on.
5. Open and close the front door and wait for the machine to rotate the
development roller for about 10 seconds.
6. Repeat the previous step two more times.
7. PCU ( 3.6.1)
8. Separate the developer section from the OPC drum section (
9. Top part [A] of the development unit ( x 5)
NOTE: Release the hook [B].
10. Set the coupling [C] back to the shaft.
11. Turn the coupling in the direction of the arrow [D] to remove developer from the
roller.
12. Turn the bottom part [E] over and rotate the gears to remove the developer.
13. Load new developer (
14. When reassembling, execute SP2-214 to reinitialize the TD sensor.
NOTE: 1) Check that no toner or developer is stuck on a gear. Clean the gears as
necessary with a blower brush, etc.
2) Be sure to replace the Mylar at the rear side in the correct position. (The
Mylar protects the gears at the rear side from falling toner).
SM
[E]
1.2.3).
3-25
PCU SECTION
[D]
[C]
B121R976.WMF
3.6.3).
B121 Series/B259 Series