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Appendix A-98
• ALD (Automatic Length Detection): Byte 3
The ALD bit specifies detected paper length replaces length value which has specified
in Length field in Set Window Parameter. When this bit is 0, automatic length
detection is disabled. When this bit is 1, automatic length detection is enabled. After
the scanning, detected length (transferred line number) is set in Detected Paper Length
field of Pixel Size Data.
Example 1:
For the READ command, CHECK CONDITION is returned with ILI=0, if TL ≠ 0 like as
image data shrink in compression.
Example 2:
If Window region is started outside the paper, no image data is returned. For the READ
command, CHECK CONDITION is returned and reading sequence terminates
extraordinarily.
Length
Width
Image data transfer is
completed at this line.
WidthULX
ULY
Length