Olivetti d-Color 201MF Theory Of Operation page 25

7. Scanner section (IR section)
(2) DF mode
1. The press of the Start key turns ON the exposure lamp.
2. The exposure unit moves from the home position to the shading position to make a
shading correction.
3. The exposure unit moves from the shading position to the DF document read posi-
tion.
4. The document in the automatic document feeder is fed up to the document read
position and the exposure unit reads the image of the document.
5. After the image of the document has been read, the exposure lamp turns OFF.
6. The exposure unit moves from the document read position to the home position.
7. The R, G, and B data are stored in memory through a single scan motion, so the
scan sequence is carried out only once even for color copying.
Original
Image reading
position
Shading position
Reading of the image of the document
18
Automatic document feeder (DF-612)
Home position
Home position
Exposure lamp (FL201) ON
Shading correction
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Theory of Operation
Theory of Operation Ver. 1.0 Sep. 2008
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