Ricoh FT7770 Service Manual page 208

30
April, '89
<Quenching Unit>
1. Clean the lamp filter with a clean damp cloth.
<Paper Feed Section>
1. Lubricate the tray motor worm gear with Mobil Temp 78.
2. Clean all rollers in the paper feed section with water only.
<Vertical Transport and Registration Section>
1. Never loosen the paint-locked screws securing the vertical transport unit
positioning brackets.
<Fusing Unit>
1. After replacing the metering blade, the cleaning blade, or the hot roller,
apply silicone oil to the top of the blades to prevent the blade edge
from getting damaged due to friction.
2. careful not to damage the edges of the hot roller strippers or their
Be
tension springs.
3. Be careful not to bend the pressure roller strippers to protect the
pressure roller from getting scratched.
4. Make sure that the fusing lamps are not in contact with the inner
surface of the hot roller.
5. Be careful not to damage the thermistor when replacing the hot roller.
6. Do not install the fusing lamps in the wrong terminals.
lamp goes in the upper terminal and the 550W lamp goes in the lower
terminal.
7. Be sure to install the fusing lamps so that the end with more filaments
(colored terminals) are to front side of the machine.
<Inverter Section>
1. Clean all rollers with water and soft cloth.
2. Lubricate all clutches with Mobil Temp 78.
4-16
The 1,100W