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AR-651/810 SCANNING SECTION 6 - 4
Carriage-1
Carriage wire
Scanner motor
Pulleys for carriage-2
6. 3. Operation
6. 3. 1. Scanner motor
(a) Scanning original on original glass
This motor drives the carriages-1 and -2 through the timing belt and carriage wire. The scanner motor
first drives carriages-1 and -2 to their respective home positions. The home positions are detected
when carriage-1 passes the home position sensor. When the [START] key is pressed, both carriages
start to move and scan the original on the glass.
(b) Scanning original on RADF
Carriage-1 starts at the shading position during the shading correction. Then moves to the fixed posi-
tion for RADF exposure operations.
Ø20
Ø30.83/2GT-Z84
Ø20
2GT-Z24
Motor pulley
Idler pulley
C a r r i a g e - 2
Wire pulley
Exposure glass for scanning operation
Shading correction plate
Slit glass for RADF exposure operations (Scanner fixed)
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