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Appendix 1 drop-out color, Ap-1, Print density measurement – Konica Minolta Fujitsu Scanner User Manual

Page 295: Drop-out color standard

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●AP-1

APPENDIX 1 DROP-OUT COLOR

A drop-out color is a color that can be eliminated from what the scanner sees.
To check the background color of document for drop-out, use the method and follow the standards
given below.

Print density measurement

The measurement must be made in one of the following ways:

- A fluorescent light source.

- Macbeth PCS meter PCM II is used, which requires a filter.

Drop-out color standard

In the spectrum of the fluorescent lamp the PCS value must satisfy the
following standards:

- Maximum Density: 0.14 or less

- Average Density: 0.1 or less

400

0

10

20

30

40

50

60

70

80

90

100

500

600

700

Wave Length (nm)

Relative Spectral Power