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COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005
CHAPTER 2 FUNCTION & OPERATION
b) Sub-Scanning Direction
The document is scanned in the
sub-scanning direction basically by
changing the feeding speed.
In the case of 200 dpi, feeding speed is
1.5 times as fast as 300 dpi. In the case
of 150 dpi, it is twice the speed, and in
the case of 100 dpi, three times the
speed used for 300 dpi.
If the timing for reading the data from
the image sensor is the same, the
resolution in the sub-scanning direction
can be converted by changing the
feeding speed. (Figure 2-502)
However, the feeding speed is limited
depending on the specifications of
carry motor. If the feeding speed can-
not be increased, the read timing in-
terval is widened. (Figure 2-503)
Feeding speed (2 times as fast as 300 dpi)
Feeding speed
Image sensor
•
150 dpi
•
300 dpi : Reading point
Figure 2-502
Feeding speed (same as 300 dpi)
Feeding speed
•
150 dpi
•
300 dpi
Figure 2-503
Содержание imageFORMULA DR-2580C
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