Sharp AR-DU3 Service Manual page 16

(2) Transport roller/belt/clutch/gear
(3) ADU paper entry roller/belt/clutch/gear
1)
3)
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2)
AR-DU3/DU4/TE3 DISASSEMBLY AND ASSEMBLY, MAINTENANCE 8-6
G. Sensors
(1) Paper entry sensor
3)
(2) Transport sensor
4)
2)
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1)
2)
1)
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2)
1)