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e-STUDIO3511/4511 SCANNER 6 - 4 November 2003 © TOSHIBA TEC
6
6.3 Description of Operation
6.3.1 Scan motor
Fig. 6-301
(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 positions. The home positions are
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.
(c) Scanning velocity
The scanning velocity at color modes is reduced to a half of it at the Black Mode.
Wire pulley
Scan motor
Carriage-1
Motor speed-reduction pulley
Motor pulley
Carriage-2
Idler pulley