Tally T5023+ Programming Manual page 55

Standard commands
BEGIN
PRINT(char(27),"U",char(0))
PRINTLF("bidirectional printing")
PRINTLF("bidirectional printing")
PRINTLF("bidirectional printing")
PRINT(char(27),"U",char(1))
PRINTLF()
PRINTLF("unidirectional printing")
PRINTLF("unidirectional printing")
PRINTLF("unidirectional printing")
END
Result:
Controlling the configuration of the printer
T5023/5023+ - Programming Guide
<-- bidirectional on
<-- bidirectional off
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