Functions; Original Glass; Carriage-1; Exposure Lamp (Exp) - Toshiba e-STUDIO206L Service Manual

3.9.3

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 RADF original glass is used when original is read with the Automatic Document Feeder.
Original is transported on the RADF 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 RADF 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), 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. There are two types of light
sources for e-STUDIO207L/257/307/357/457/507: a xenon lamp and an LED. The xenon lamp is
used with the 4-line CCD and the LED is used with the 3-line CCD. The light source for e-
STUDIO207L/257/307/357/457/507 is an LED and is used with the 3-line CCD.
- Reflector
This is a plate to efficiently direct the light from the exposure lamp (EXP) to the surface of the
original on the glass. (The LED consists of the LED and the reflector combined with the LED.)
- Mirror-1
This mirror directs the light reflected from the original to the mirror-2 described later.
Exposure lamp
e-STUDIO206L/256/306/356/456/506 / 207L/257/307/357/457/507
OUTLINE OF THE MACHINE
Reflector
Mirror-1
Fig. 3-26
Original glass
Fig. 3-27
3 - 44
Exposure lamp
Original
Reflector
Mirror-1
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