Rockwell Automation 2755 2D Hand-Held Scanner - Manual (Page 23)

1–14 Scanner Configuration
Publication 2755-6.7
Select Prefix/Suffix Options
To set a suffix or prefix, scan the appropriate label below and then
scan the 4 digit ASCII equivalent for the character you want to use
as the prefix or suffix. See the ASCII Chart in Appendix G.
Prefix
Suffix