Functions - Toshiba e-STUDIO2330C Service Manual

7.3

Functions

The following shows the construction and purpose of the scanning system:
1. Original glass
This is a glass for placing original. The light from the exposure lamp (EXP) is irradiated to the
original through this glass.
The ADF original glass is used when original is read with the Automatic Document Feeder. Original
is transported on the ADF original glass by the Automatic Document Feeder, and the transported
original is read under the ADF original glass by the carriage. Do not use such solvents as alcohol
when cleaning the surface of the ADF original glass, because it is coated so as not to be scratched
by originals.
2. Carriage-1
Carriage-1 consists of the exposure lamp (EXP), Inverter board (INV), reflector, mirror-1, etc. It is
driven by the scan motor (M1) and scans an original on the glass.
- Exposure lamp (EXP)
This lamp is the light source to irradiate the original on the glass. (One 26 W xenon lamp)
- Inverter board (INV)
Controls lighting of the exposure lamp (EXP).
- Reflector
This is a plate to efficiently direct the light from the exposure lamp (EXP) to the surface of the
original on the glass.
- Mirror-1
This mirror directs the light reflected from the original to the mirror-2 described later.
Exposure lamp
3. Carriage-2
Carriage-2 mainly consists of the mirror-2, mirror-3, etc. and directs the reflected light from the
mirror-1 through the mirrors-2 and -3 to the lens.
© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved
Reflector
Lamp inverter
Mirror-1
Fig. 7-2
Original glass
Fig. 7-3
7 - 3
Exposure lamp
Original
Lamp inverter
Reflector
Mirror-1
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C
7
SCANNER