those not – cleared (“0”).
• The bit image modes specified by m are as follows:
Vertical Direction
Horizontal Direction
m
Mode
Dots
Dot Density
Dot Sensity
Max. Dots
0
8-dot single density
8
67 dpi
101 dpi
216
1
8-dot double density
8
67 dpi
203 dpi
432
32
24-dot single density
24
203 dpi
101 dpi
216
33
24-dot double
density
24
203 dpi
203 dpi
432
[Caution]
• When the value of m (bit image mode) is out of the above range,
the data following after n1 is processed as normal printing data.
• After completion of a bit image printing, the printer returns to
normal data processing mode.
The command has another variant with four new modes:
ESC * m n[ d ] k
ESC * m n a f [ d ] k
Specifying the Bit Image Mode (Sending graphics data horizontally)
[Code]
[1Bh] + [2Ah] + m + n + { a + [00h] } +D1 + … +Dk
[Range] {
m
= 16, 17, 18, 20 bit image mode}
{0 <=
n
<= 40h}
{0 <=
d
<= FFh}
{
k
= n * 24
*
48} (m = 16)
{
k
= n * 24 * 48} (m = 17) {After decompression}
{
k
= n * h * 48} (m = 18) {After decompression}
{
k
= n * 24 * 48} (m = 20) {After decompression}
{0 <=
a
<= 24 (Used only for mode 18.)}
{
f
= 0 (Used only for mode 18.)}
[Outline]
In these graphics modes is sent a graphics block with variable
width n*8 dots and height 24 dots for modes 16,17 and a dots for
mode 18. In mode 17 data is compressed, and the bytes count
specified is before the compression. In mode 16 the same data is
without compression. Mode 20 is similar to mode 17, but every
byte is mirrored before putting in the print buffer (bits 0 and 7, 1
and 6, 2 and 5, 3 and 4 change places). All modes are high
resolution (203 x 203 DPI).
• When bit image data have been input in excess of dot position of
one line (432 dots) , the excess data are discarded.
•
d
is bit image data, the bits subject to printing are taken as “1”
and those not as “0”.
[Caution]
• When the values set in m (bit image mode) are out of the above
range, the data following after n is processed as normal printing
data.
• After completion of bit image printing, printer returns to normal
data processing mode.
