Oki C310dn Maintenance Manual page 203

Oki Data CONFIDENTIAL
Unit Circuit diagram and composition
Upper roller heater #1
2
Upper roller heater #2
3
Thermostat
1
4
Upper thermistor
A1
A2
Fuser unit
Lower thermistor
B1
B2
Frame thermistor
A3
A4
B3
B4
44346001TH Rev.1
Part drawing
B1 2 3 4
A5 4 3 2 1
Fuse
Between pins 1 and 2: Several ohms to several tens of ohms
Between pins 3 and 4: Several ohms to several tens of ohms
Between pins A1 and A2: Approx. 590 k to 5338 k (0 to 93°C)
Between pins B1 and B2: Approx. 104.5 k to 806.5 k (0 to 43°C)
Between pins A3 and A4: Approx. 104.5 k to 806.5 k (0 to 43°C)
Between pins B3 and B4: Open
A5 blank NC
3 4
2 1
8. CONNECTION DIAGRAMS
Resistance value
03 /