Denso GT20Q-SB User Manual page 22

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Scanning mode
Regular scanning mode
Data verification mode
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Power saver -- Entering Sleep state
When the trigger switch operation mode is set to auto-off mode or momentary switching mode with the trigger switch off, or
when the scanner has entered the Ready state in alternate switching mode, it will enter Sleep state in order to reduce power
consumption. (The scanner will not enter the Sleep state when in continuous reading mode 1 or 2, or auto sensing mode.)
The scanner will enter the Sleep state after 30 s in Normal consumption mode and will enter Sleep state immediately in Low
consumption mode (default). Normal consumption mode and Low consumption mode can only be switched with the
configuration software (ScannerSetting_2D).
When scanning from Sleep state, the scanning speed will take approximately 100 ms longer than when scanning from the
Ready state.
The data is transferred once the code has been read correctly.
The data of the code that has been scanned is compared with that of the registered code to
verify whether they match.
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Refer to Section 7.1 for details.
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