LK-T21 Technical Manual
GS W nL nH
[Name] Set printing area width
[Format] ASCII GS W nL nH
Hex 1D 57 nL nH
Decimal 29 87 nL nH
[Range] 0 ≤ nL ≤ 255
0 ≤ nH ≤ 255
[Description] Sets the printing area width to the area specified by nL and nH.
·The printing area width is set to [(
nL + nH x 256) x horizontal motion
unit]].
Printable area
Left margin Printing area width
[Details] ·This command is effective only processed at the beginning of the line.
·In page mode, the printer performs only internal flag operations.
·This command does not affect printing in page mode.
·If the [left margin + printing area width] exceeds the printable area, [printable area width - left
margin] is used.
·The horizontal and vertical motion units are specified by GS P. Changing the horizontal and
vertical motion units does not affect the current left margin.
·The horizontal motion unit (x) is used for calculating the printing area width. The calculated
result is truncated to the minimum value of the mechanical pitch.
·If the width set for the printing area is less than the width of one character, when the character
data is developed, the following processing is performed:
① The printing area width is extended to the right to accommodate one character.
Printable area
Left margin Extended to right
Printing area width set by
nL and nH
② f the printing area width cannot be extended sufficiently, the left margin is reduced
to accommodate one character
Printable area
Extended to right①
Left margin Reduce left margin ②
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