d-Color MF4003/MF3303
P THEORY OF OPERATION > 1. d-Color MF4003/MF3303
P-6
[1] Home position [2] Shading position
[3] CIS module (IR CIS) [4] The LED turns ON
[5] Shading correction -
(2)Control when the Start key is pressed
(a)Original scanning mode
Original cover mode
1. Turn ON the start key, the CIS module moves from the home position to the shading position.
2. From the shading position, the CIS module turns ON the LED and moves to the scan start position 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 trailing edge of the original.
3. The LED will turn OFF when the reading is complete.
4. The CIS module moves from the scan end position to the home position.
[1] Home position [2] Shading position
[3] Scan start position [4] Scan end position
[5] Read original [6] The LED turns ON
[7] The LED turns ON -
DF mode
• The original fed by the document feeder will be read at the original DF glass for. The scanner unit will move to the DF original reading
position and stops.
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