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3.3 Optional image function
3-25
(3) Automatic Separation
[A.4.7 SET WINDOW command / Automatic Separation]
With this feature, the scanner automatically recognize the text areas and photo areas on the
document. For the areas that are recognized as text areas, scanned data are processed as pure
binary with no halftone algorithm (fixed threshold or automatic binarization). For areas that are
recognized as photo areas, scanned data are processed with a halftone algorithm (Dither or Error
Diffusion).
Table 3.15 Parameter of Automatic Separation
Parameter Value Effect Default
OFF X’00’ Automatic Separation OFF
ON X’80’ Automatic Separation ON *1 *2
OFF
*1 Simplified DTC and Image Emphasis are available for binary regions.
*2 In IPC-2D, other image processing as Simplified Dynamic Threshold and Image Emphasis are ignored.