US ( H <Function 34>

[Name]

Specifies the text background color (line specification).

ASCII

(

Hex

Decimal

( pL + pH × 256) = 7 (pL = 7, pH = 0)

fn = 34

a = 0

r = 0 - 255

g = 0 - 255

b = 0 - 255

1 ≤ (nL + nH x 256) ≤ 13　（1 ≤ nL ≤ 13 ，nH = 0） [Landscape (Lines)]

1 ≤ (nL + nH x 256) ≤ 19　（1 ≤ nL ≤ 19 ，nH = 0） [Portrait (Lines)]

a = 0

r = 0

g = 0

b = 0

Specifies the background color of lines specified by nL and nH.
Lines can be specified up to the maximum number of lines stipulated by US ( K <Function 2> and US ( D <Function 1>, and specifying more lines than this results in the excess lines being discarded and inability to specify the setting.

nL	nL	Function
1		Specifies the background color of the 1st line
2		Specifies the background color of the 2nd line
3		Specifies the background color of the 3rd line
…
19		Specifies the background color of the 19th line

The setting values are maintained for each window.
This command is ignored if fixed column/line mode is specified by screen layout selection.

ESC/POS^® includes patented or patent pending commands. The contents must not be disclosed to third parties.

ESC/POS^® Command Reference for Customer Displays