Oil Supply And Cleaning - Ricoh FT5540 Service Manual

31 August 1989

12.4 OIL SUPPLY AND CLEANING

Silicone oil is applied to the hot roller to prevent toner and paper from sticking to the hot roller,
to reduce paper curl, and to clean the roller.
A small one-way-valve pump moves the oil from the oil tank [A] (capacity 360 cc) to the oil
supply pad [B]. The oil pump lever [C] alternately presses and releases the rubber sleeve [D]
between the valves as the oil cam [E] turns.
The oil supply pad then applies the oil to the hot roller as it turns. The oil blade spreads the oil
on the hot roller evenly. Excess oil flows down the back of the oil supply pad to the oil
sump [F]. Oil flows out through a hole [G] in the bottom of the oil sump and returns to the oil
tank.
The oil supply pad both distributes oil to the hot roller and removes toner and foreign matter
from the hot roller surface.
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