Fusing; Overview - Ricoh G104 Service Manual

FUSING

6.8 FUSING

6.8.1 OVERVIEW

12
11
1. Fusing tension roller
2. Cleaning roller
3. Oil supply roller
4. Pressure lever
5. Pressure roller
6. Hot roller
• For this model, a belt fusing system is used. This system has a faster warm-up
time than a standard hot and pressure roller system.
• The heating roller is made of aluminum to increase the temperature of the fusing
belt quickly.
• The hot roller is made of sponge, which becomes a little flat at the contact point
of the pressure roller. This increases the fusing nip. This roller does not contain a
heating lamp.
• The heating roller thermistor controls the temperature of the lamp.
• Each new fusing unit contains a fuse. A short time after a new fusing unit is
installed, this fuse blows. When this occurs, the machine detects that a new
fusing unit is installed.
The oil supply roller supplies oil to the fusing belt through the oiling roller. This
mechanism applies a constant thickness of oil to the fusing belt.
G104
CÓPIA NÃO CONTROLADA
3
2
1
10
9
8
CÓPIA NÃO CONTROLADA
7 6
G105D118.WMF
7. Fusing belt
8. Heating roller
9. Heating lamp
10. Thermistor
11. New fusing unit
detection fuse
12. Thermostat
6-58
4
5
SM