Printek PrintMaster 850 Series User Manual
Page 110
Printek Emulation
104
Example: The following escape sequence will print four bytes of graphics data at 72 x 72 dpi. The resulting
figure will resemble a square, since the horizontal and vertical density are the same. If some other density is
chosen, the figure will resemble a rectangle.
Escape Sequence:
ESC
*
20
0
4
<
<
<
<
Hexadecimal:
1B
2A
14
00
04
3C
3C
3C
3C
m DPI Graphics
ESC # m n1 n2 data
Selects eight wire graphics of density m as listed in the following table for (n1 x 256) + n2 columns of data.
m
Density
90
90 dpi
100
100 dpi
135
135 dpi
150
150 dpi
NOTE: Horizontal movement of the printer's print head is measured in intervals of 1/720 of an inch. The
supported graphics densities above may not be an integral multiple of this resolution. For example, at 150
dpi, dots may be printed every 4.8/720 of an inch. The printer is not really capable of printing dots every
4.8/720 of an inch. It will print the dots as accurately as possible, with some at 4/720 of an inch and some at
5/720 of an inch. The overall average will be 4.8/720 of an inch.
Example: The following escape sequence will print five bytes of graphics data at 150 dpi. The resulting
figure will resemble a backslash character, “\”.
Escape Sequence:
ESC
#
150
0
5
64
32
16
8
4
Hexadecimal:
1B
23
96
00
05
40
20
10
08
04
Printer Controls
Bell
BEL
Causes the printer's bell to sound.
Control code:
BEL
Hexadecimal:
07
Unidirectional Mode
ESC U n
Selects unidirectional mode for n=1, or bidirectional mode for n=0. Printing is normally bidirectional.
Unidirectional printing provides more accurate positioning, but causes lower throughput.
Example: The following escape sequence will force unidirectional printing.
Escape Sequence:
ESC
U
1
Hexadecimal:
1B
55
31