Epson TM U295 - B/W Dot-matrix Printer Operator's Manual page 51

ESC m nL n H [d]k
[Name] Select bit-image mode
[Format] ASCII
Hex
Decimal
[Range] m = 0, 1
0 nL
0 nH
0 d
k = nL + nH x 255
[Description] Selects a bit-image mode using m for the number of dots specified by
nL and nH, as follows:
m Mode
0 8-dot single-density
1 8-dot double-density
The number of dots in the horizontal direction depends on the
printing area and the printing direction specified by ESC W and ESC
T.
[Notes] • The nL and nH indicate the number of dots of the bit image in the
horizontal direction. The number of dots is calculated by nL + nH
• 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 to 0 to not print a dot.
• If the values of m and nH are out of the specified range, the
following data is processed as normal data.
• After printing a bit image, the printer returns to normal data
processing mode.
• In page mode, double density bit image data is not available.
• The relationship between the image data and the dots to be
printed is shown on the next page.
ESC
1B 2A
27 42
255
3
255
Vertical direction
The number
of dots
8
8
256.
nL nH [d]k
nL nH [d]k
nL nH [d]k
Horizontal direction
Dot Dot
density density
60 DPI 80 DPI
60 DPI 160 DPI
Commands 5-11
Maximum
number of dots
210
420