Beijing Rongda science & Technology RD-FH8C7, Manual

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[Type] ASCII
：
ESC 1 n
Decimal: 27 49 n
Hex: 1B 31 n
[Scope] 0 ≤ n ≤ 255 (The default value of ‘ n ’ is 3)
[Default] n=3
[Explanation] Set the line spacing to n vertical dot pitch
[Example]
unsigned char str[4];
str[0] = 0x1B;
str[1] = 0x31;
str[2] = 8;
SendDataToPrinter(str,3);//
Set the line spacing to 8 vertical dot pitch
ESC SP n
[Name]
set the character spacing
[Type] ASCII
：
ESC SP n
Decimal: 27 32 n
Hex: 1B 20 n
[Scope] 0 ≤ n ≤ 255 (The default value of ‘ n ’ is 0)
[Explanation] Set the character spacing to n horizontal dot pitch
[Example]
unsigned char str[4];
str[0] = 0x1B;
str[1] = 0x20;
str[2] = 8;
SendDataToPrinter(str,3);//
Set the character spacing to 8 horizontal dot pitch
ESC a n
[Name] Select justification methods
[Type] ASCII
： ESC a n
Decimal:
27 97 n
Hex:
1B 61 n
[Scope]
0 ≤ n ≤ 2
[Explanation] Aligns all the data in one line to the specified position.
n selects the justification as follows:
n
justification methods
0 Left
justification
1 Centering
2 Right
justification
[Comment]
• This command is only valid at the beginning of the line.
[Default]
n＝0
[Example]
unsigned char str[4];
str[0] = 0x1B;
str[1] = 0x61;