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Set Vertical Tab Channels
73
Set Vertical Tab Channels
ASCII Code ESC /
m
Hex Code 1B 2F
m
Dec Code 27 47
m
Purpose The value for
m
specifies the number of the tab sets being
changed; these sets of tabs are called vertical formatting unit
(VFU) channels.
Where:
0 <=
m
<= 7
Comment You must use this command to select a tab set (VFU channel)
other than set 0; the VT (tab vertically) command then uses the
settings for the selected channel.
You can select from eight sets of tabs (VFU channels).
Set Vertical Tabs
ASCII Code ESC B
n
1
n
2
…
n
k
NUL
Hex Code 1B 42
n
1
n
2
…
n
k
00
Dec Code 27 66
n
1
n
2
…
n
k
0
Purpose Sets vertical tab positions (in the current line spacing) at the
lines specified by
n
1
to
n
k
, as measured from the top-margin
position.
The values for
n
must be in ascending order; a value of
n
less
than the previous
n
ends tab setting (just like the NUL code).
Where:
0 <=
k
<= 16
1 <=
n
<= 255
n
k
>
n
k-1
Comment Changing the line spacing does not affect previous tab settings.
The tab settings move to match any subsequent movement in
the top-margin position.
Send an ESC B NUL command to cancel all tab settings.
A maximum of 16 vertical tabs can be set.
The printer stores all tab settings, even if outside the printing
area; if you increase the page length to include previously set
tabs, you can move to those positions with the VT (tab
vertically) command.
Sending the ESC B command clears any previous tab settings.