Star Micronics TSP400 Series Programmer's Manual page 79

Set left margin
FUNCTION
CODE
<ESC> "l"
1B
HEX
Sets the left margin at column n (where n is between 0 and 255) at
REMARKS
the current character pitch.
The left margin does not move if the character pitch is changed
later.
Setting is invalid if the printing area for one line would be 36mm
or less.
Set right margin
FUNCTION
CODE
<ESC> "Q"
1B
HEX
Sets the right margin at column n (where n is between 1 and 255)
REMARKS
at the current character pitch.
The right margin does not move if the character pitch is changed
later.
Setting is invalid if the printing area for one line would be 36mm
or less.
n
6C n
n
51 n
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