Specifications

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TM-U590 series
Specification
(STANDARD)
GS ! n
[Name] Select character size
[Format] ASCII GS ! n
Hex 1D 21 n
Decimal 29 33 n
[Range] n = 0, 1, 16, 17
[Description] Selects the character height using bits 0 to 3 and selects the character width using
bits 4 to 7, as follows:
Bit Off/On Hex Decimal Function
0 Character height selection. See Table 2.
1
2
3
4 Character width selection. See Table 1.
5
6
7
Table 1 Character Width Selection Table 2 Character Height Selection
Hex Decimal Width Hex Decimal Height
00 0 1 (normal) 00 0 1 (normal)
10 16 2 (double-width) 01 1 2 (double-height)
[Notes] • In standard mode, the vertical direction is the paper feed direction, and the
horizontal direction is perpendicular to the paper feed direction. However, when
character orientation changes in 90° clockwise-rotation mode, the relationship
between vertical and horizontal directions is reversed.
• In page mode, vertical and horizontal directions are based on the character
orientation.
• When characters are enlarged with different sizes on one line, all the characters
on the line are aligned at the baseline.
• The ESC ! command can also turn double-width and double-height modes on or
off. However, the setting of the last received command is effective.
[Default] n = 0
[Reference] ESC !