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6
6 - 4e-STUDIO350/352/353/450/452/453
SCANNER
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6.3 Description of Operation
6.3.1 Scan motor
(a) Scanning of an original placed on the original glass
This motor drives the carriages-1 and -2 through the timing belt and carriage wire. First, the
scan motor drives the carriages-1 and -2 to their respective home position. The home position
is detected when the carriage-1 passes the home position sensor. When the [START] button is
pressed, the both carriages start to move and scan the original on the glass.
(b) Scanning of an original placed on the RADF
The carriage-1 stays at the shading position during shading correction, and at the scanning
position during scanning operation.
Fig. 6-301
Wire pulley
Scan motor
Carriage-1
Motor speed-reduction pulley
Motor pulley
Carriage-2
Idler pulley