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2.1.1.4 Video Preview-Mode Selection
Software can preset parameters related to the image display based on
different applications in order to be called for actual use.
Photo (Image Mode): Suitable for most occasions;
Text (Text Mode): Scan and convert the preview screen to black-and-white
images with high-definition and high-contrast;
OCR (OCR Mode): Suitable for scanning text documents in order to improve
the rate of OCR character recognition;
Custom (User Customization Mode): Users can adjust appropriate
parameters according to the actual situation .Parameters are saved
in the second mode for the next call. Press
to save.
Note: Parameters set during ex-factory are the same to those in Photo
(Image Mode).
2.1.1.5 LED Lighting Brightness Adjustment
The auxiliary lighting LED lights have six brightness levels. When this
option is checked, the brightness is in first class, as shown in image (1).
When the check is deleted, LED lights will automatically turn off, as shown
in image (2).
（
1
）
（
2
）
