Epson ESC Manuale Utente Scaricare il pdf (Pagina 121)

B-14

CODE GP

DC4 DC4 ESC ! n 10 p EM

CODE-GP bar code allows bar codes to be constructed from the two basic

elements (BAR and SPACE) by sending 0,1 digits: digit 0 produces a BAR

and digit 1 produces a SPACE.

These two elements may be combined in any sequence, thus giving the

possibility of producing bars and spaces of any width that is a multiple of the

basic element width. Default bar/spaces width is 1/60” (q = 0,1) but these

values may be set by the user according to its specific needs. Data fields do

not have a defined format length and contain 0,1 data only; question marks

will be printed in place of HRC string otherwise, if possible.

No Human Readable Interpretation is possible, hence is the user task to

provide a TEXT STRING below or above the bar/space symbol: f field is

meaningless. No internal check digit algorithm is available: o field is

meaningless.

C25-3BAR

DC4 DC4 ESC ! n 11 p EM

C25-3BAR bar code data fields do not have a defined format length and

contain numeric data only: question marks will be printed in place of HRC

string otherwise, if possible. If o check digit option field takes 1 value, an

internally generated check digit complying with general 2/5 family algorithm

will be added to the encoded string: however it will not show on the required

HRC string.

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Epson ESC Manuale Utente Pagina 121