Specifications

REFERENCES
103
4
and the effect is that the device remains ON, decoding codes until the
flash on or
timeout period expires.
The Safety Time parameter should be used in this case to avoid unwanted multiple
reading of the same code, see par. 4.5.4.
4.5.4 Safety Time
Safety time prevents the device from immediately decoding the same code more
than once. Same code consecutive reading can be disabled requiring the reader to
be removed from the code (no decoding) for at least 400 ms, or a timeout can be set
up to 9.9 seconds before the decoder will accept the same code. Reading is
immediate if the code changes.
4.6 DECODING PARAMETERS
CAUTION
These parameters are intended to enhance the decoding capability of
the reader for particular applications. Used incorrectly, they can
degrade the reading performance or increase the possibility of a
decoding error.
4.6.1 Ink-Spread
The ink-spread parameter allows the decoding of codes which are not perfectly
printed because the page texture tends to absorb the ink.
4.6.2 Overflow Control
The overflow control parameter can be disabled when decoding codes printed on
small surfaces, which don’t allow the use of an overflow space.
This command does not effect code families 2/5, Code 128 and Code 93.
4.6.3 Interdigit Control
The interdigit control parameter verifies the interdigit spacing for code families Code
39 and Codabar.