Filter
Top Products
M3099GX/GH OEM Manual 6-7
DOCUMENT
SPECIFICATION
A drop-out color is color visible by a human eye but not visible to
the scanner.
To check the grounding color of document for a drop-out color, use
the method and follow the standards given below.
Print density measurement
The spectrum chart shows in Figure 6.5 is used to measure print
density.
The measurement must be made in one of the following ways:
• A light source using fluorescent G54
• Macbeth PCS meter PCM II is used, which requires a filter.
Drop-out Color
Figure 6.5 Spectrum band
Drop-out color standards
In the spectrum of fluorescent lamp G54, the PCS value must satisfy
the following standards:
• Maximum: 0.14 or less
• Average: 0.1 or less
100
50
400 450 500 550 600 650 700 750
Relative response
λ (nm)
#06 Chapter 6 98.2.22, 1:51 PM7