User`s manual

A–6 Bar Codes
Start Bar Coding (DECBARC)
ASCII Code: ESC % SP 0
Hex Code: 1B 25 20 30
Dec Code: 27 37 32 48
Purpose: Generates bar codes using data that follow the sequence.
Discussion: Bar code parameters are defined by the last DECSBCA sequence. The
printer continues to encode bar codes until it receives the Stop Bar Code
sequence.
The printer begins to generate a bar code at the upper left–hand corner of the
left quiet zone and ends at the lower right–hand corner of the right quiet
zone. Bar codes that extend beyond the margins are truncated.
Stop Bar Coding (Return from Other Coding System: ROCS)
ASCII Code: ESC % @
Hex Code: 1B 25 40
Dec Code: 27 37 64
Purpose: Stops bar code printing.
Discussion: Once bar coding is stopped, the font selection and associated attributes
are restored to the conditions prevailing prior to bar code printing.