Service manual

1.8.4 Reading Area
This function allows you to limit the scan to a specified portion of the document. Set the reading area by
specifying the reading lengths, in units of dots, for both the main scan and the sub scan.
The maximum selectable reading area is determined by the resolution and zoom settings. To specify a smaller
reading area, indicate the rectangular area and offset from the origin. The smaller area must lie within the
maximum selectable area. The following figure shows the image as viewed from the scanner.
1.8.5 Color Mode
The color mode specifies color scanning or monochrome (black and white) scanning. In color scanning, you
can choose either page sequence mode or line sequence mode. In monochrome scanning, you can also
specify a drop-out color.
Color page sequence mode
The scanner scans the document three times to scan green, red, and blue separately. Page sequence
mode is faster than line sequence mode.
Color line sequence mode
The scanner scans the document once, scanning green, red, and blue simultaneously. This scanning
method allows you to use the color correction function.
Monochrome mode
The scanner scans the document once, and scans the image in monochrome. In standard monochrome
scanning, all green, red, and blue lights are used to produce white light, and the undesirable drop-out
color is minimized.
Drop-out color (monochrome scanning only)
The drop-out color is the color that is not recognized by the scanner and can be used to erase an
unwanted color. You can choose green, red, or blue.
Origin
Offset length
Main scan length
Reading length
Offset length
Reading length
S
ub scan length
Main scan
Sub scan
Reading area
Figure 1-17. Reading Area
GT-5000 / Action Scanner II Service Manual Product Description
Rev. A 1-21