3.26【Select bit‐image mode】
[Format]
ASCII
Hex
Decimal 27 42 m
[Range]
m = 0, 1,32,33;0
[Description] Selects a bit‐image mode using m, for the number of dots
specified by nL and nH
m
mode
8‐dot
0
single‐density
8‐dot
1
double‐density
24‐dot
32
single‐density
24‐dot
33
double‐density
[Notes]
If the value of m is out of the specified range, nL and the data
following are processed as normal data.
If the bit‐image data input exceeds the number of dots to be printed on a
line, the excess data is ignored.
D indicates the bit‐image data. Set a corresponding bit to 1 to print a dot or
to0 not to print a dot.
If the width of the printing area set by GS L and GS W less than the width
required by the data sent with the GS
on the line in question (but the printing cannot exceed the maximum printable
area):
The width of the printing area is extended to the right to accommodate
①
the amount of data.
margin is reduced to accommodate the data. For each bit of data in single‐density
mode (m = 0,), the printer prints two dots; for each bit of data in double‐density
mode (m = 1), the printer prints one dot. This must be considered in calculating
the amount of data that can.
After printing a bit image, the printer returns to normal data processing mode.
This command is not affected by print modes (underline, character size, or
white/black reverse printing), except upside‐down printing mode.
The relationship between the image data and the dots to be printed is
described in Figure below:
ESC
m
nL nH d1...dk
*
1B 2A m nL
nL
nL
255;0
Vertical Direction
Number
Dot Density
of Dots
8
67.7dpi
8
67.7dpi
24
203dpi
24
203dpi
If step does not provide sufficient width for the data, the left
②
nH d1...dk
nH d1...dk
nH
255;0
dpi: dots per 25.4 mm {1"}
Horizontal Direction
Dot Density
101.6dpi
203.2dpi
101.6dpi
203.2dpi
command, the following will be performed
*
255
d
Number of Data
(K)
nL+_nH
256
*
nL+_nH
256
*
(nL+_nH
256)
*
(nL+_nH
256)
*
3
*
3
*
40