Sekonic SR-6500 HYBRID Operating Manual page 105

OMR glossary
Peak sensitivity
wavelength
740(nm)
660
570
530
a) It is important to control the PCS value to print dropout colors. (You
need to choose a printer equipped with devices that can measure PCS
values.)
Dropout color for the reading sensor
The print colors that experience dropout at the peak sensitivity wavelengths for
the image reading sensor are given in the table below.
If wishing to avoid dropout in printable areas such as text areas during image
reading, select a peak sensitivity wavelength that differs from that for the print
color.
-104-
Color
Sepia Abundant dropout colors
Magenta
Purple Some ballpoint pens cannot be used.
Brown
Bluish tones
Greenish tones
Rose For red end colors only,
Pink rose aniline, purplish red, deep red
Regular ballpoint pens can be used.
Red
Orange
As in fax scanners, it's difficult
to see with human eyes → should be avoided.
Yellow
Regular ballpoint pens can be used.
Blue Regular ballpoint pens can be used for
Green blue(includes Green)-end colors only.
Remarks