Epson RP-U420 Bit-image commands ESC, C O N F I D E N T I A L, Ver. 1.0 p, ≤ nL ≤, ≤ nH ≤, ≤ d ≤

C O N F I D E N T I A L

ESC ✻

[Name]	Select bit-image mode
[Format]	ASCII		ESC	✻	m	nL	nH	d1 ... dk
	Hex		1B	2A	m	nL	nH	d1 ... dk
	Decimal		27	42	m	nL	nH	d1 ... dk
[Range]	m = 16, 17
	0	≤ nL ≤ 255
	0	≤ nH ≤ 3
	0	≤ d ≤ 255

k = (nL + nH ⋅ 256) ⋅ 2

■■ ■■ ■■ moremore

EXECUTING COMMAND

[Default]

[Description]

[Notes]

None

Selects a bit-image mode using m for the number of dots specified by nL and nH, as follows:

		Vertical Direction	Max. Number of Dots			Min. number of dots
m
	Mode	Number of Dots	Receipt	Journal	Validation	in horizontal
16	9-dot single-density	9	108	108	248	2 half dots
17	9-dot double-density	9	216	216	495	1 half dot

•m specifies the print mode of the bit image

•nL and nH specify the number of dots of the bit image in the horizontal direction as (nL + nH ⋅ 256) dots

•d indicates the bit-image data

•k specifies the number of bit-image data

■d indicates the bit-image data. Set a corresponding bit to 1 to print a dot or to 0 not to print a dot.

■If bit-image data and character data are printed on a line, the bottom of the bit image is aligned to the baseline (the second dot from the bottom) of the built-in internal character.

■If bit-image data input exceeds the number of dots to be printed on a line, the excess data and the number of dots of the bit image in the horizontal direction which is specified by nL and nH, are discarded. Then the printer performs the buffer-full process when the next data is input.

RP-U420 Bit-image commands ESC ✻ Ver. 1.0 p. 38