5 - 4 DS7708 2D Vertical Slot Scanner Product Reference Guide
Imaging Preferences
The parameters in this chapter control image capture characteristics. Image capture occurs in all modes of
operation, including decode and snapshot.
Operational Modes
The scanner has two modes of operation:
•
Decode Mode
•
Snapshot Mode.
Decode Mode
In decode mode, the scanner attempts to locate and decode enabled bar codes within its field of view. The
scanner remains in this mode until it decodes a bar code.
Snapshot Mode
Use Snapshot Mode to capture a high-quality image and transmit it to the host. To temporarily enter this mode
scan the Snapshot Mode bar code. While in this mode the scanner blinks the green LED at 1-second intervals
to indicate it is not in standard operating (decode) mode.
In Snapshot Mode, the scanner turns on its red LED
illumination to highlight the area to capture in the image.
The next soft trigger command instructs the scanner to capture a high quality image and transmit it to the host.
A short time may pass (less than 2 seconds) between when the soft trigger command is sent and the image is
captured as the scanner adjusts to the lighting conditions. Hold the scanner steady until the image is captured,
denoted by a single beep.
If you do not send a soft trigger command within the Snapshot Mode Timeout period, the scanner returns to
De
code M
ode. Use Snapshot Mode Timeout on page 5-5 to adjust this timeout period. The default timeout
period is 30 seconds.
Snapshot Mode
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