Konica Minolta bizhub c450 Service Manual page 43

7. Scanner section (IR section)
B. When the Start key is pressed
1. The Exposure Lamp turns ON when the Start key is pressed.
2. The gain adjustment is made when the Exposure Unit moves past the point under
the shading sheet. Thereafter, a shading correction is made.
3. The Exposure Unit starts a scan motion with the original position.
4. After completing the scan motion for the original, the Exposure Unit temporarily
stops and the Exposure Lamp goes out.
5. The Exposure Unit makes a return motion and stops at the home position. Each of
the R, G, and B data is stored in memory during a single scan motion. The Expo-
sure Unit therefore makes only a single scan motion even for a multi-copy cycle.
Home Position
Original Position
Gain Adjustment and Shading Correction
Scan
16
Theory of Operation Ver. 1.0 Mar. 2005
Exposure Lamp (FL201) ON
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