Rjs Inspector D4000 Laser (FIRMWARE version A.05 and E Manuel d'utilisateur Page 52

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Appendix F Operators Guide
RJS, Minneapolis, MN 002-5568
46
NOTES:
1. X = X dimension
2. Tolerance is expressed as a fraction of the X dimension
R = Ratio in the calculations
3. UPC/EAN tolerances:
80 - 89% = .14X
90 - 115% = .30X
116 - 150% = .34X
151 - 200% = .38X
4. See Appendix I for Quiet Zone Analysis descriptions.
5. UPC-A symbols with a number system character value of 2 and EAN-13 symbols with a
prefix of 20 contain a random weight check digit in addition to the normal Mod 10 check
digit. This extra digit is automatically analyzed and displayed in the Mod Check Data
Analysis screen as shown below:
Modck: 1 5 PASS
Expect: 1 5
The 1 is the random weight check digit and the 5 is the Mod 10 check digit. The symbology
specifications allow the check digit to have a value of zero in cases where it is not used
In cases where the random weight check digit is zero, when another value is expected, a Bad
Mod Check Warning will not be issued. The LCD display and corresponding printout will
note the discrepancy with a CHK message in place of FAIL as shown below:
Modck: 0 5 CHK
Expect: 1 5
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