LVS-7500 External System
Operations Manual
LVS-7500 External System Operations Manual Page 70 of 129
Common Causes for Error Conditions
Error Condition Possible Cause
Mismatch
The data read did not match to what was expected to be read. This can be
caused by poor quality of print causing the system to identify one or more
characters as good quality, yet still incorrect. It could also be caused by a
character being gone. Either not printed, or somehow has gone outside
the sector borders within the image.
No Read
The data within a sector was not read at all. This can be caused by missing
print, poor contrast of print, or the expected data was outside of the sector
borders within the image.
Quality
The character(s) within a string do not qualify to the standard entered into
the OCV Threshold, or the barcode grade is not above the minimal passing
score allowed. This can be caused by missing character portions, bad line
definition of characters, or stretched/skewed characters, or any of the
ISO/ANSI barcode grading parameters being below the acceptable level
entered in the “PASS if ACTUAL >=” sector setting parameters.
Sequence
The data does not match to the previous number +/- one. This is most often
caused be a miscommunication that causes one or more numbers within a
sequence to be skipped or repeated, an unconnected RS-232 cable, or user
error on starting number.
Range
The read number is larger or smaller than the file covers. This is usually
caused by the incorrect datafile being loaded to compare to.
GAP
No data was discernible in any sector. Most common causes are blank media
coming through the line, or an erroneous triggering mechanism.
Wrong Length
For barcode reading the code has too many/few characters encoded. This
could be from the incorrect code being printed, or the trained in length for the
job was incorrectly set. For OCR/OCV characters the same conditions apply,
with the addition of the possibility of characters being broken or touching. If a
broken character is detected, then one character will become two. If two
characters are touching, they will become one combined character. Also be
sure that no characters are touching the sector box. The system will ignore
any characters that touch the sector box.
Not Assessed
Rewinder/Printer is going faster than what the Camera and PC can handle.
LinesperInch or Camera MaxSpeed may be inc
orrectly set in the ini file. INI
settings must only be changed by an Omron Microscan representative.
Duplicate Character string has previously been seen in this job.
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