Variable Resisters - Ricoh FT4480 Field Service Manual

15 MARCH 1987

2. Variable Resisters

- MAIN BOARD -
NUMBER
VR201
- LAMP REGULATOR -
NUMBER
VR1
VR2
VR3
- DF MAIN BOARD -
NUMBER
VR101
VR103
VR104
VR105
FUNCTION
Adjust the image density sensor voltage
FUNCTION
Light adjustment
ADS input adjustment
Factory Use
FUNCTION
Registration adjustment (0 ± 2.5 mm)
Belt drive motor speed adjustment
( 2 , 5 0 0 ± 3 0 r p m )
Original entrance sensor output
(IC 116-5 > +8V : With paper)
(IC 116-5 < +4V : Without paper)
Original width sensor output
(IC 116-7 > +8V : With paper)
(IC 116-7 < +4V : Without paper)
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