Oki ML3390, User Manual

Page: 130 / 349

Chapter 10: IBM - Standard Functions
10-10
Tabulators
Function Dec. Hex. ASCII
Skip to next horizontal 9 09 HT
tab
Set horizontal tabs 27 68 n
1
1B 44 n
1
ESC D n
1
... n
k
00 ... n
k
00 ... n
k
NUL
n = 1 to 255
k = 1 to 28
Clear horizontal tabs 27 68 0 1B 44 00 ESC D NUL
When the printer is switched on tabulators are set automatically
every eight columns starting with the ninth column. If a tabulator
character (HT) is transmitted, the print head moves to the next set
tab position before printing the following character.
The set tabulator position relates to the extreme left print column
and not the set left margin (absolute reference). The actual position
of a tab depends on the actual pitch at the time when loading the
horizontal tab. When the pitch is changed, the tab position moves
(relative position). It is mandatory to enter the tab positions in as-
cending order. The parameter n
1
indicates the column position of
the first tab, n
2
to n
k
accordingly the column positions of the other
tabs to be set. Up to 28 (n
1
... n
28
) tabs can be defined. The position of
a horizontal tab relates absolutely to the character column zero, i.e.
to the physical left margin. The command sequence must be ended
with a NUL character.
The command ESC D NUL clears all horizontal tabs, including the
standard tabs. If the printer is switched off and on, the standard
tabs are available again. If no other tab is set up to the end of line,
the tab jump command is ignored.
The command ESC R cancels any tab stops you have set and returns
to the printer’s defaults. This means that horizontal tab stops will
occur every eight columns, and that there will be no vertical stops.
A VT command will just produce a single line feed.
The maximum permissible values for tab positions can be seen
from the following table.
Horizontal
tabulators