Specifications

Programmers Guide TH230/TH230+

ESC 3

Function:

Set line spacing

Code ASCII: ESC 3 n

Code HEX: 0x1B 0x33 n

Range:

0 ≤ n ≤ 255

Default: Default line spacing is 3,33 mm (n = 54)

Description:

Sets the line spacing to n × (vertical motion unit * 1/2).

Notes:

• The unit of n parameter is an half of a full step. It means, n will be

divided by 2. n=1 means 0 fullsteps and the linespacing is 0.

• The maximum line spacing is 1016 mm (40 inches). If the specified

amount exceeds 1016 mm (40 inches), the line spacing is automatically

set to 1016 mm (40 inches).

• When standard mode is selected, the vertical motion unit is used.

• When page mode is selected, the vertical or horizontal motion unit is

used for the print direction set by ESC T.

• When the starting position is set to the upper left or lower right of the

printing area using ESC T, the vertical motion unit is used.

• When the starting position is set to the upper right or lower left of the

printing area using ESC T, the horizontal motion unit is used.

• The line spacing can be set independently in standard mode and in page

mode.

• When the motion unit is changed after the line spacing is set, the line

spacing setting does not change.

• Selected line spacing is effective until ESC 2 is executed, ESC @ is

executed, the printer is reset, or the power is turned off.

• The vertical or horizontal motion unit is specified by GS P.

• In standard mode, if the character height is greater than the line spacing

specified by this command, the paper is fed the amount of the character

height. For example, if a line spacing of 34 dots is specified with this

command, but the characters used are double height (48 dots), the

paper is fed 48 dots.

• When an amount of paper feed exceeding the maximum value is

specified, the maximum paper feed is executed.

• The vertical motion unit (see GS P) will not calculate for line spacing.

Reference: SYN, GS P