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GS A m n (Valid Only at B.M Paper Selection)
[Function] Correcting the leader position of Black mark paper
[Code] <1DH><41>H<m><n>
[Range] 0 m 255
0 n 255
[Outline] This command sets the leader position of Black mark paper in terms of correction
value set for the default position.
“m” denotes the correcting direction.
• “m” is valid only for the lowest bit (m0).
• Control by the lowest bit (m0) is shown as follows:
• ”n” denotes the correction value in units of n/203 inch.
[Caution] • This command is valid only when Black mark paper is chosen.
• This command is ignored except immediately after the execution of a Black mark
positioning command (FF, GS FF, GS A, GS <) or immediately after leader positioning
performed on a paper feed action with the FEED switch, power on, or cover closure.
• The maximum reverse correction span is 0.5 mm. Correction settings exceeding
this value are truncated into the maximum value. The leader position may be
deviated due to paper flexure. For reverse correction, exercise care so the leader
position does not step out of the Black mark.
• For forward correction, set the correction span by taking into account the Black
mark as the printable area changes before and after correction setting.
• In calculating a correction span, use the basic calculation pitch (y) for the vertical
direction. The fractional part contained in the calculation result should be corrected
in units of the mechanism’s minimum pitch, with the remaining fractional part
truncated.
[See Also] FF, GS
m0 Correcting Direction
0 Corrects the leader position in the forward direction
1 Corrects the leader position in the reverse direction