NCR RealPOS, User Manual

Page: 135 / 187

Chapter 6: Special Programming 6-3
Enable/Disable Code 128 Partials
When decoding Code 128 using partial scans, sometimes a Decode error is generated.
However, several conditions must occur to cause the misread. If having problems reading
Code 128 bar codes, try disabling partials.

Disable Code 128 Partials— Program Mode , Hex 1 , Hex 7 , Hex F , Hex 0 , and Save and
Reset

Enable Code 128 Partials— Program Mode , Hex 1 , Hex 7 , Hex F , Hex 1 , and Save and
Reset
Code 128 Overlap Characters
The 7893 can put together partial scans to identify a Code 128 bar code. Decoding partial
scans is more secure with more overlap characters. The number of overlap characters can be
programmed from one to four; two is the default.
1. 1 Overlap Character— Programming Mode, Hex 6, Hex B, Hex D, Hex 1, Save and
Reset
2. 2 Overlap Characters— Programming Mode, Hex 6, Hex B, Hex D, Hex 2, Save and
Reset
3. 3 Overlap Characters— Programming Mode, Hex 6, Hex B, Hex D, Hex 3, Save and
Reset
4. 4 Overlap Characters— Programming Mode, Hex 6, Hex B, Hex D, Hex 4, Save and
Reset
EAN/JAN/UPC Multi-Symbol Scanning Parameters
The optional Multi-Symbol programming feature permits you to scan bar code labels
containing two or three EAN-13, JAN-13, or UPC-A symbols.
Label Construction
A multi-symbol label must consist of any combination of two or three EAN-13, JAN-13, or
UPC-A symbols, each with different flag digits. Flag digits are the first two digits of the
symbol on EAN-13/JAN-13 symbols. Flag digits for UPC-A symbols always have a zero (0)
for the first digit with the number system character being the second digit. There is NO
restriction on which flag digits may be used. A total of five multi-symbol combinations can be
programmed.
Single Label Restriction
A single-symbol with the same flag digits as programmed for any 2-symbol labels cannot be
scanned as a single-symbol label.