Ricoh FT7770 Service Manual page 258

7. Replace the cleaning and metering blades [A] (5 screws each). Install
the blades with the beveled side up. Prime the edges of the new blades
with silicone oil.
NOTE: The cleaning blade and the metering blad are the same. But, the meter-
ing blade has two oil skimmers [B].
8.
Replace the oil supply pad [C] (3 shoulder screws [D]). Soak the new oil
supply pad with silicone oil.
9. When the oil supply pad assembly is reinstalled, confirm that the end of
the oil supply pad is in the bottom of the oil sump [E].
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April, '89