Olivetti d-Color MF550, Теория работы

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Theory of Operation Ver. 8.0 Jun. 2008 7. Scanner section (IR section)
2
1
Composition/Operation
B. When the Start key is pressed
(1) Original cover mode
1. Turning the Start key ON will turn the exposure lamp ON (at the standby position)
2. The exposure unit moves in the return direction and stops at the shading position.
At the shading position, the gain adjustment is made.
3. The exposure unit moves in the return direction and stops at the scan start posi-
tion.
4. To start a scan, the exposure unit moves from the scan start position to the leading
edge of an original while performing shading correction. The exposure unit will start
reading the original image from the leading edge. The unit will finish reading the
image at the back edge of the image.
5. The exposure lamp will be OFF when the reading is complete.
6. The exposure unit moves in the return direction and stops at the home position.
Then the exposure unit moves in the scan direction and stops at the standby posi-
tion. It scans only once even for the color-copies, since R, G, and B data will all be
memorized in one scanning.
A00JT2C003AA
A00JT2C005DA
Shading position
Home
position
Standby position
Standby position
Scan start position
Scan start
position
Leading edge of the
image
Original
Back edge of the image
Scan
Return
Shading position
Home position
Leading edge of the image
Scan
Return
Exposure lamp (FL201) ON
Back edge of the image
Start key ON
Y107522-3 Theory of Operation