Sekonic SR-6500 Instruções de Operação descarregar pdf (Página 118)

-117-

Timing control type

If paper has pre-printed timing marks, the scanning area (reading area) of targeted

mark frames will be determined by such timing marks.

Timing control type is a method to determine the reading zone based on the

timing mark width. Other methods include direct under type, mark to mark type,

and FACOM type.

Example: Timing control type to scan three times the timing mark width.

Set multiple numbers using the software controlling OMR.

...

Reading area

N times the width of

a timing mark

Reading area

N times the width of

a timing mark

• Top-end timing control type:

Reads n times the width of a timing mark

from the beginning of the timing mark.

• Bottom-end timing control type:

Reads n times the width of a timing mark

from the end of the timing mark.

...

Sensor (for reading) Reading sensor/position sensor

Sensors are photoelectrical elements that transform reﬂ ected light. Sometimes

sensing refers to both light emission and light reception.

LED wavelength inﬂ uences dropout color. We use mainly two wavelengths, and

the relationships between wavelength, dropout colors, and readable colors are

shown in the table below.

Sorter

On a device with two or more stackers, this is a unit that can sort paper based on

information such as kind of paper and written marks.

Wavelength Color Dropout color Readable color

940nm Infra red

Colors other than

readable colors

Black and blue pigments

660nm Visible light (red) Red, orange, pink Black, blue

OMR glossary

SR-3565(E).indd 117SR-3565(E).indd 117 2007-8-16 10:21:302007-8-16 10:21:30

1 2 ... 113 114 115 116 117 118 119 120 121 122 123 ... 129 130

Sem comentários

Sekonic SR-6500 Instruções de Operação Página 118