Ricoh A66 Service Manual page 342

5. Apply setting powder to the entire drum surface [D].
NOTE: Be sure to apply the setting powder over the entire drum. This
prevents the cleaning blade from catching on the drum surface.
6. Rotate the drum forward two or three times to settle the setting powder
between the drum surface and cleaning blade.
NOTE: Do not the touch the drum beyond 10 mm from either side.
7. Install the drum unit using the reverse procedure of its removal.
8. After replacing the drum only, perform the process control
self-check for the new drum using following procedure.
1). Turn the main switch on. Then wait 10 minutes to remove the
residual voltage on the drum left by the initial process control
self-check.
2). Perform SP2-311 (Belt cleaning mode).
This is to apply a small amount of lubricant on the drum.
3). Perform SP3-126 (Forced process control).
This SP takes about 5 minutes.
4). Check the value of SP3-975 (Confirmation of the result).
Good result=01
Bad result = 80 to 99
If the value is a bad result, see section 2. (1.3.14).
NOTE: When replacing the drum and developer (or the development unit,
containing new black, cyan, magenta, and yellow developers), do the
SP modes listed in the SP Modes After Replacing and Cleaning table
in section 5, Maintenance.
SM 5-9
DRUM UNIT
[D]
A166R530.wmf
A166/A187/A189