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  5. GS !

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Parameters are refined by the selected printer.
  • EU-m30
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GS !

[Name]

Select character size

[Format]

ASCII
   
GS
  
!
  
n
Hex
1D
21
n
Decimal
29
33
n

[Range]

n = 0xxx0xxxb (n = 0 – 7, 16 – 23, 32 – 39, 48 – 55, 64 – 71, 80 – 87, 96 – 103, 112 – 119)
(Enlargement in vertical direction: 1–8, Enlargement in horizontal direction: 1–8)

[Default]

n = 0

[Description]

Selects character size (height magnification and width magnification).
(n) Bit
Function
Hex
Decimal
0–2
Selects the height magnification
See table [Height magnification].
3
(Reserved)
00
0
4–6
Selects the width magnification
See table [Width magnification].
7
(Reserved)
00
0
Character width selection
Bit
Hex
Decimal
Width
6
5
4
0
0
0
00
0
x 1 (normal)
0
0
1
10
16
x 2 (double-width)
0
1
0
20
32
x 3
0
1
1
30
48
x 4
1
0
0
40
64
x 5
1
0
1
50
80
x 6
1
1
0
60
96
x 7
1
1
1
70
112
x 8
Character height selection
Bit
Hex
Decimal
Height
2
1
0
0
0
0
00
0
x 1 (normal)
0
0
1
01
1
x 2 (double-height)
0
1
0
02
2
x 3
0
1
1
03
3
x 4
1
0
0
04
4
x 5
1
0
1
05
5
x 6
1
1
0
06
6
x 7
1
1
1
07
7
x 8

[Notes]

  • The character size set by this command is effective for alphanumeric, Kana, multilingual, and user-defined characters.
  • When the characters are enlarged with different heights on one line, all the characters on the line are aligned at the Baseline.
  • When the characters are enlarged widthwise, the characters are enlarged to the right, based on the left side of the character.
  • ESC ! can also turn double-width and double-height modes on or off.
  • In Standard mode, the character is enlarged in the paper feed direction when double-height mode is selected, and it is enlarged perpendicular to the paper feed direction when double-width mode is selected. However, when character orientation changes in 90° clockwise rotation mode, the relationship between double-height and double-width is reversed.
  • in Page mode, double-height and double-width are on the character orientation.
  • The setting of the character size of alphanumeric and Katakana is effective until ESC ! is executed, ESC @ is executed, the printer is reset, or the power is turned off.
  • The setting of the character size of Kanji and multilingual characters is effective until FS ! is executed, FS W is executed, ESC @ is executed, the printer is reset, or the power is turned off.
 

Quick Access

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


ESC/POS® Command Reference for TM Printers

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  2. ESC/POS® Command Reference for TM Printers »
  3. Commands Arranged by Function »
  4. Character Commands »
  5. GS !

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