Ricoh A220 Service Manual page 292

15 July 1996 PREVENTIVE MAINTENANCE SCHEDULE
NOTE 8: Development Unit
1. Lubricate the bias terminal (sleeve roller shaft) [A] with Grease: KS660:
SHIN-ETSU
[A]
A176M590.img
NOTE: Use only conductive grease, otherwise bias voltage will not be
properly applied to the development rollers.
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