Specifications

Programmers Guide TH230/TH230+
46
m Mode
Vertical
Horizontal
dot
density
Dot
density
Set
adjacent
dots
Maximum
number
of dots
0 8-dot single-
density
203/2
dpi
Permitted 288 203/3 dpi
1 8-dot double-
density
203 dpi Permitted 576 203/3 dpi
32 24-dot single-
density
203/2
dpi
Permitted 288 203 dpi
33
24-dot double-
density
203 dpi
Permitted
576
203 dpi
90° or 270° rotated bit-image data will be printed.
dpi: dots per 25.4 mm (dots per inch)
ESC * 1 n
L
n
H
[d] n
L
+ 256 * n
H
Function: Select bit-image mode - Line Graphics
Code ASCII:
ESC * 1 nL nH d1 ... dk
Code HEX: 0x1B 0x2A 0x31 nL nH d1 ... dk
Range: 0 ≤ n
L
≤ 255
0 ≤ n
H
≤ 255
0 ≤ d ≤ 255
k = n
L
+ n
H
× 256
Description:
Selects a bit-image mode for a single line graphics.
Notes:
• The command is enabled only when input at the beginning of the line.
• [d] contains n
L
+ 256 * n
H
data byte and contains the pixel information
beginning with the actual position.
• The MSB of the first byte corresponds to the first pixel (on the left side)
and the LSB of the last byte corresponds to the last pixel (on the right
side).
• If a data bit is set the corresponding pixel is switched on.
• If the number of columns determined in this way is smaller than the
printing area, the remaining pixels are filled with zeros.
• If the number of columns determined in this way is larger than the
printing area, the extra data bytes have no effect and are ignored.
• After the graphics has been printed, the printer returns to the normal
data processing mode.
• After the graphics has been printed, the cursor is at the print starting
position.
• The typical data length is 72 bytes (= 576 dots). If the data length is
greater than 72 bytes, only 72 bytes are printed but the remaining bytes
are read and deleted.