When alternative mode is selected, the scanner keeps the light source on till
the preset “light source on time” is up. After turning off the light source, you
must press the trigger switch to turn on the light source again. After each
good read, the timer counter of light source on time is reset. You do not have
to press the trigger switch frequently. This is very useful for multiple scanning.
When level mode is selected, the scanner continues to keep the light source
on till a bar code is decoded, or the preset “light source on time” is up.
When a bar code is decoded successfully, the scanner turns off the light
source immediately. After the scanner turns off the light source, you have to
press the trigger switch to turn on the light source again. If there is no
scanning operation performed during the preset “light source on time”, the
scanner will turn off the light source after the preset “light source on time” is
up.
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