CHAPTER 2
2 - 18
COPYRIGHT © 2000 CANON INC. CANOSCAN D660U REV.0 JULY 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
When decreasing the resolution, the scanning unit moves at a faster speed to read less lines.
2) Resolution conversion in the vertical scanning direction
The ASIC changes the scanning unit moving speed to change the resolution in the vertical
scanning direction. When increasing the resolution, the scanning unit moves at a low speed to
read more lines as shown in Figure 2-18.
Figure 2-19
Figure 2-17
Figure 2-18
Sampling point
Moving direction
Scanning unit
Sampling point
Moving direction
Scanning unit
Sampling point
Moving direction
Scanning unit