Table of Contents
Advertisement
REFERENCES
4.5.2
Reads per Cycle
In general, a reading cycle corresponds to the Phase ON / Phase OFF times of a
device.
The resulting effects of this parameter on code reading depend on other related
configuration conditions. Here are the definitions of Phase ON and Phase OFF times.
When one read per cycle is selected, the device decodes only one code during the
Phase ON period and immediately turns to the Phase OFF. It is only possible to read
another code when the next Phase ON time occurs.
In multiple reads per cycle, the Phase ON period is extended so that the device
can continue decoding codes until an OFF event occurs.
4.6
DECODING PARAMETERS
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.
CAUTION
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.
This command is forced (enabled) when PDF417 codes are enabled.
4.6.3
Interdigit Control
The interdigit control parameter verifies the interdigit spacing for code families
Code 39 and Codabar.
4
43
Advertisement
Table of Contents
