Star Micronics TSP2000 Programmer's Manual page 23

Function
Code
Hex
Initial Value
Remarks
1. Underlining is not executed for the following.
a. The area skipped when moving the printing position
to the next horizontal tab position.
b. Block graphics of the IBM character set. (B0H, to
DFH, F4H and F5H).
2. 23, 24 dot lines are used for underlining 24 dot fonts.
Select overlining
<ESC> " " n
_
1B 5F n
n = 0
Designates overlining for subsequent data by the value of
n.
n Action
0 Cancels overline mode.
1 Sets overline mode.
The value of n can be set to 0 (00H) or "0" (30H) or 1
(01H) or "1" (31H).
1. Overlining is not executed for the following.
a. The area skipped when moving the printing position
to the next horizontal tab position.
b. Block graphics of the IBM character set. (B0H, to
DFH, F4H and F5H).
2. 23, 24 dot lines are used for overlining 24 dot fonts.
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