Print And Paper Feed; Print And Feed Paper One Line; Print And Carriage Return; Feed N Print Lines - CognitiveTPG A799 Programming Manual

42 Chapter 4: Programming Commands

Print and paper feed

The print and feed commands control printing on the receipt and paper feed by the printer.

Print and feed paper one line

ASCII
LF
Hexadecimal
0A
Decimal
10
Prints one line from the buffer and feeds paper one line.
Carriage return/line feed pair prints and feeds only one line.

Print and carriage return

ASCII CR
Hexadecimal
0D
Decimal
13
Prints one line from the buffer and feeds paper one line. The printer can be set through the configuration menu to ignore or
use this command. Some applications expect the command to be ignored while others use it as print command.
Related information
See ignoring/using the carriage return in Diagnostics for more information.
This command is ignored in LEGACY emulation.
Carriage return/line feed pair prints and feeds only one line.

Feed n print lines

ASCII
DC4 n
Hexadecimal 14 n
Decimal 20 n
Value of n:
The number of lines to feed at current
line height setting.
Range of n:
0–255 in A799 native mode
0–127 in A793 emulation
Feeds the paper n lines at the current line height without printing. Ignored on receipt if current line is not empty.
Related information
This is ignored in LEGACY emulation and the parameter byte goes into the print buffer.

Feed n dot rows

ASCII
NAK n
Hexadecimal
15 n
Decimal 21 n
Value of n:
n/203 inch
Range of n: 0–255 in A799 native mode
0–127 in A793 emulation
Feeds the paper n dot rows (n/8 mm, n/203 inch), without printing. Receipt moves n rows if the print buffer is empty.
Related information
This is ignored in LEGACY emulation and the parameter byte goes into the print buffer.
A799-PG00001D
Revision D 12/09