Line Thermal Printer DEP-50
38
39
User’s Manual
ESC * m n1 n2 [ d ] k
Specifying the Bit Image Mode
[Code]
[1Bh] + [2Ah] + m + n1 + n2 + D
1
+ … + D
k
[Range]
{m= 0, 1, 32, 33 bit image mode (See the table below.)}
{0 <= n1 <= FFh}
{0 <= n2 <= 3}
{0 <=d <=FFh)
{k = n1 + 256 X n2 (m = 0, 1)
{k = (n1+256 X n2) X 3} (m = 32, 33)
[Outline]
According to the number of dots specified in n, n2, specify the bit
image of mode m.
• The total number of dots printed in the bit image is equal to
n1 + (256 x n2).
• When bit image data have been input in excess of dot position of
one line (384 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”.
• The bit image modes specified by m are shown as follows:
[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 (384 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.
[Compression procedure for mode 17 and 18]
A simple RLE encoding like this in PCX files is used. If two most
significant bits of the byte are set, the 6 LSB contain a repeat
counter (1-63), and the next byte contains the data to be repeated.
A single data byte with 2 MSB set must be sent as two bytes.
Vertical Direction
Horizontal Direction
m
Mode
Dots
Dot Density
Dot Density Max. Dots
0
8-dot single density
8
67 DPI
101 DPI
192
1
8-dot double density
8
67 DPI
203 DPI
384
32
24-dot single density
24
203 DPI
101 DPI
192
33
24-dot double density
24
203 DPI
203 DPI
384
[Caution]
• When the values set in m (bit image mode) are out of the above range,
the data following after n1 is processed as normal printing data.
• After completion of bit image printing, 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] } +D
1
+ … +D
k
ESC – n
Specifying/ Canceling Underline
[Code]
[1Bh] + [2Dh] + n
[Range]
{0 <= n <= 2}
[Outline]
Specifying/canceling an underline.
•
Types of underlines by
n
value are shown below:
