Horizontal Tab Set/Reset

Horizontal Tab Set/Reset

ASCII Code ESC D n1 n2...nk NUL

Hex Code 1B 44 n1 n2...nk 00

Dec Code 27 68 n1 n2...nk 0

Purpose Sets up to 28 horizontal tab positions.

where: n1 through n28 specify the character column of the tab positions. NUL is the sequence terminator.

Comment Up to 28 different tab positions may be set. The values must be listed in ascending order or they are ignored. The physical tab position is the product of n and the current cell width (1/pitch), excluding double wide. Tabs in excess of 28 or those positioned beyond the paper's right margin are also ignored.

Tab positions may be cleared by sending the ESC D NUL sequence. Powering the printer on/off initializes the tabs to every eighth character column. Horizontal tabs are accessed by control code HT.

Example The following example illustrates horizontal tab setting and accessing.

Horizontal/Vertical Tabs Clear

ASCII Code ESC R

Hex Code

1B 52

Dec Code

27 82

Purpose

Clears all horizontal and vertical tab stops.

Comment

Horizontal tab stops are reinitialized to every 8 columns, starting

 

at column 1 (i.e., 1, 9, 17 ...).

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Image 133
IBM 4400 manual Horizontal Tab Set/Reset, Horizontal/Vertical Tabs Clear, Ascii Code ESC D n1 n2...nk NUL