RJS Inspector D4000 SP (FIRMWARE version A.06 and Later) - Manual (Page 43)

Operator
’s Guide
Appendix B
002-5572 RJS, Minneapolis, MN 35
Note 1:

UPC/EAN tolerances:
80 - 89% = .14X
90 - 115% = .30X
116 - 150% = .34X
151 - 200% = .38X

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
Note:
The 1 is the random weight check digit and the 5 is the
Mod 10 check digit. The symbology specifications al-
low 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 an-
other 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 CHK
Expect: 1