Appendix; 13-A Reference For Card Creation - Sekonic SR-430 Operatiing Manual

Optical mark reader
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13.Appendix

13. Appendix

13-A Reference for card creation

(1) Overall dimensions of card
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For details of dimensions of cards, refer to the reference drawing in 12-A-(6).
Note: When using carbon paper, design the device so as not to allow the pasting position to
overlap the end of the card feeding direction.
(2) Print ink
Be sure to use print ink satisfying the following reflectance characteristics:
1) Timing mark
2) Unreadable information in marked area: Drop-out color (*1) of PCS = 0.15 or lower
3) Direction of fiber
4) PCS measurement wavelength
Note 1: Drop-out color
Refers to a color which is not read by optical mark read elements due to being converted to the
same signals as "blank" parts although visible as various colors to human eyes.
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Direction of fiber
Length (longer side)
: Non-reflectance ink (black) of PCS = 0.9 ± 0.05
: Parallels the longer side of paper (direction of card
feeding).
: 940nm for the near infrared light specifications
(660nm for the infrared visible light specifications)
-56-
L
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Timing mark

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