B245/B276/B277/B268/B269 Service Manual 18-Jan-06
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 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 (
p.9).
14. When reassembling, execute SP 2214 to reinitialize the TD sensor.
 Make sure no toner or developer stays on the gear. Clean the gears as
necessary with a blower brush, etc.
 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).
After Replacement or Adjustment
 Do the following procedure after replace or adjust any of the PCU components. This
procedure is not necessary when you replaced the whole PCU with a new one.
1. Take 5 sample copies.
2. If black dots (dropped toner) show on any of the copies, continue as follows. (If all
copies are clean, you don't need to do the following steps.)
3. Remove the PCU from the mainframe.
4. Tap the top of the PCU with a screwdriver at eight evenly spaced locations (two or
three taps at each spot), to knock the recycled toner down into the development
section.
5. Put the PCU back into the mainframe.
6. Turn the main power on. Then open and close the door and wait for the machine
to rotate the development roller for 10 seconds. Then open and close the door two
more times, so that total rotation time is 30 seconds.
7. Make some sky-shot copies (or solid black prints).
 If using A4 or 8
1
/
2
" x 11" paper, make 4 copies/prints.
 If using A3 or 11" x 17" paper, make 2 copies/prints.
 To make solid black prints, use SP 5902 pattern 8.
 Step 7 is required only after parts replacement or adjustment. You do not need
to make sky-shot (or solid black) copies after you replace the developer.
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