Epic 3000
Programmer’s Guide
Programming Codes
100-14362
Rev A
Page 143
GS-1 AI fields with a Check Digit
Refer to the GS-1 General specification for the method used to calculate the check digit.
In some cases the check digit is not encoded into the barcode. However, the check digit
is always shown in the human readable interpretation and transmitted by the decoder
even though it is not explicitly encoded in RSS-14 and RSS Limited symbols. The
printer does not check the check digit and whatever is passed in will be printed in the
HRI. The printer however will format the barcode without the check digit and the
barcode reader will reinsert it into the resulting data. The result is that if the check digit
passed in is not correct, it will be printed in the HRI but may be reported as a different
character by the reader.
To make check digit generation easier, the printer will (optionally) automatically generate
and insert a check digit in several AI fields. To trigger automatic insertion, the GS-1 AI
check digit option
should be activated and a “*” character used in the location of the
check digit.
AI
Data Content
Format
Check Digit
Location
Data Title
00
SSCC (Serial Shipping Container Code)
n2+n18
n18
SSCC
01
Global Trade Item Number (GTIN)
n2+n14
n12, n13, or n14
GTIN
02
GTIN of Contained Trade Items
n2+n14
n14
CONTENT
253
Global Document Type Identifier (GDTI) n3+n13+n..17
n13
DOC. ID
402
Shipment Identification Number
n3+n17
n17
SHIPMENT NO.
410
Ship to - Deliver to Global Location
Number
n3+n13
n13
SHIP TO LOC
411
Bill to - Invoice to Global Location
Number
n3+n13
n13
BILL TO
412
Purchased from Global Location
Number
n3+n13
n13
PURCHASE FROM
413
Ship for - Deliver for - Forward to Global
Location Number
n3+n13
n13
SHIP FOR LOC
414
Identification of a Physical Location -
Global Location Number
n3+n13
n13
LOC No
415
Global Location Number of the Invoicing
Party
n3+n13
n13
PAY TO
8003
Global Returnable Asset Identifier
(GRAI)
n4+n13+an..16
n13
GRAI
8018
Global Service Relation Number
(GSRN)
n4+n18
n18
GSRN
Table 11
AI’s supported by automatic check digit generation
Note:
Automatic Check Character generation for Price/Weight, Four-Digit
Price, and Five-Digit Price fields are not supported by automatic check
character generation.
Note:
If additional AI fields with check characters are added to the GS1
standards they will not be processed by the printer unless the
printer’s
firmware is updated.
