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Oki Data CONFIDENTIAL
44158801TH Rev.2
303 /
Between pin A -1 and pin A -6:
Se
v
eral ohms to se
v
eral tens of ohms
Between pin B -1 and pin B -6:
Se
v
eral ohms to se
v
eral tens of ohms
Between pin B -4 and pin B -5:
Appro
x.
590K
ohms to 5338K
ohms (0-93)
Between pin A -2 and pin A -3:
Appro
x.
104.5K
ohms to 806.5K
ohms
(0-43˚C)
Between pin B -2 and pin B -3:
Appro
x.
104.5K
ohms to 806.5K
ohms
(0-43˚C)
Between pin A -4 and pin A -5:
Open
Unit
Circuit diagram & configuration
P
ar
t schematic
Resistance v
alue
Fuser unit
B - 6
Upper roller heater #1
Upper roller heater #2
A - 6
B - 1
A - 1
Ther
mostat
Upper ther
mistor
B - 4
B - 5
Lo
wer ther
mistor
A - 2
A - 3
F
rame ther
mistor
B - 2
B - 3
A - 4
A - 5
Fuse
2
1
6
3
4
5
2
1
6
3
4
5
A
B