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Chapter 7 Print Control Codes
•Except for HRI characters, this command is valid for all characters.
•If the setting of either the vertical enlargement rate or the horizontal enlargement rate deviates from the definition range, this command is disregarded.
•In the Standard mode, the vertical direction indicates the paper feed direction and the horizontal direction indicates the direction perpendicular to the paper feed di- rection. Therefore, in specifying 90 degree rotated characters, the
•In the Page mode, the vertical direction indicates the vertical direction with respect to the characters and the horizontal direction indicates the horizontal direction with respect to the characters.
•If characters with a different vertical enlargement rate are mixed on the same line, they are arranged along the base line.
•Horizontal and vertical double enlargement can also be specified and cleared by ESC !, but the command that was processed last becomes the valid command.
•The initial value is “n = 0”.
(49)Specifying the character vertical absolute position in the page mode (GS $ n1 n2)
Code: [1D] h + [24] h + n1 + n2
*(0 ≤ n1 ≤ FF)
(0 ≤ n2 ≤ FF) Data are expressed in Hex code.
In the Page mode, this command specifies the position in the characters' vertical direc- tion of the data development start position as an absolute position with the starting point as the reference. The position in the characters' vertical direction of the next data development start position is a position [(n1 + n2 x 256) x basic calculation pitch] inch from the starting point.
•This command is disregarded when a mode other than the Page mode is selected.
•An absolute position specification which exceeds the specified print area is disre- garded.
•The data development start position does not shift in the characters' horizontal direction.
•The starting point used as the reference is specified by ESC T.
•Movements from the starting point specified by ESC T are as follows.
(1)If “top left” or “bottom right” is specified as the starting point, the absolute position in the paper feed direction (characters' vertical direction) is specified. At this time, the vertical basic calculation pitch (y) is used.
(2)If “top right” or “bottom left” is specified as the starting point, the absolute position in the direction perpendicular to the paper feed direction (characters' vertical direction) is specified. At this time, the horizontal basic calculation pitch (x) is used.
•The basic calculation pitch is set by GS P.
•If there is a fraction, interpolation is carried out at the mechanism's minimum pitch. Remainders are cut off.
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