After Replacement Or Adjustment - Ricoh D158 Service Manual

PCU Section

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).

4.7.7 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).
1

If using A4 or 8 /
2

If using A3 or 11" x 17" paper, make 2 copies/prints.

To make solid black prints, use SP5-902-001 pattern 8 (for D160/D161/D170) or
SP2-109-001 pattern 20 (for D158/D159).

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.
D158/D159/D160/D161/D170
" x 11" paper, make 4 copies/prints.
4-56 SM