A795 User Guide: Programming Supplement
Chapter 4: Programming commands
47
Set absolute starting position
ASCII
ESC $ nL nH
Hexadecimal
1B 24 nL nH
Decimal
27 36 nL nH
Value of n:
n = Number of dots to be moved from
the beginning of the line.
nL = Remainder after dividing n by 256.
nH = Integer after dividing n by 256.
The values for nL and nH are two bytes in low byte, high
byte word orientation.
Sets the print starting position to the specified number of
dots (up to the right margin) from the beginning of the
line. The print starting position is reset to the first column
after each line.
Formulas
The example shows how to calculate 280 dots as the
absolute starting position.
28 x 10 =
280 dots (beginning of column 29)
280/256 =
1, remainder of 24
nL = 24 nH =
1
Related information
If the set horizontal and vertical motion units command
(1D 50) is used to change the horizontal and vertical
minimum motion unit, the parameters of the set relative
print position command will be interpreted accordingly.
For more information, see the description of the command
set horizontal and vertical minimum motion units
command (1D 50) in this document.
Compatibility information
(A795 receipt vs. A793 receipt)
There is a difference in the normal behavior of this
command in A793 emulation mode as compared to the
original A793. The difference exists when the command is
used to move to the left. The A793 processes the whole
print string prior to putting it in the buffer for the print
head. This method of processing allows the A793 to
backup in the print string and replace characters and their
associated attributes when a “Set relative print position”
command instructs the printer to move the print position to
the left.
In order to improve the speed of printing, the A795 moves
the data into a buffer for the printhead when it receives it.
When the “Set relative print position” command contains a
move to the left, this causes the new data to overstrike the
previous data. This behavior can be used to an
application’s advantage to provide the ability to create
compound characters on the receipt station.
This command also functions differently in the A793
emulation when used in graphics:
n x 2 = Number of dots to be moved from the beginning
of the line when this command is followed by a
graphics command.
Set vertical line spacing to 1/6 inch
ASCII
ESC 2
Hexadecimal
1B 32
Decimal
27 50
Default:
3.33 mm (0.13 inch)
Sets the default line spacing to 4.25 mm (1/6 of an inch).
