December 2002 TOSHIBA TEC 7 - 1 e-STUDIO160/200/250 SCANNER
7. SCANNER
7.1 Functions
In this copier's scanner, light is directed at the surface of the original, and the light reflected from the
original projects to the CCD (Charge Coupled Device) by means of mirrors, lens and a slit. Photo-voltaic
conversion by this CCD converts optical image data to electrical signals. These resultant analog signals
undergo A/D conversion to be converted to digital signals. These digital signals undergo various com-
pensation processes to create the required image. These digital signals are computed and processed,
and then sent to the printer.
Carriage 1 rail
Carriage 2 rail
Carriage 2
Lens
CCD PWA
Scanner control PWA
Scanner drive gear
Scanner motor pulley
Carriage 1
Exposure lamp (Xenon)
Reflector
Original glass
08-01-01
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