Ricoh FT6645 Manual page 383

PREVENTIVE MAINTENANCE SCHEDULE
16 May 1994
Development Unit
NOTE 8:
(1) Lubricate the bias terminal (sleeve roller
shaft) [A] with Grease: KS660: SHIN-ETSU
[A]
CAUTION: Use only conductive grease, otherwise bias voltage will
not be properly applied to development rollers.
L
4-64-1