Star Micronics SB-15 Return print head to left margin Star CHR$13, Changing Line Spacing

will add the line feed for you. When you have DIP switch 2-3 off the printer will do the same thing when it receives a carriage return as it does when it receives a line feed.

If you find that your printer double spaces when it should single space, then you probably need to turn DIP switch 2-3 on.

Table 6-l

Line feed commands

Function Mode Control code

Return print head to left margin STAR CHR$(13)

TRM

Advance paperoneline STAR 1CHR$(lO)

IBM 1CHR!NlO)

CHANGING LINE SPACING

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When you turn SD-lo/l 5 on the line spacing is set to 6 lines per inch. This is fine for most printing applications, but sometimes you may want something different. SD-lo/l5 makes it easy to set the line spacing to whatever value you want.

Try this program with STAR mode to see how easy it is to change the line spacing:

NEW

10 FOR I = 1 TO 25

20 IF I = 13 THEN 50

30 LPRINT CHR$(27) "A" CHR$(I);- 48 LPRINT "This line spacing is set to" I

50 NEXT

60 LPRINT "Line spacing is set to l/6 inch (normal)." - -.

70 LPRINT CHR$(27) "2"

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Line 30 changes the line spacing. The command < ESC > “A” CHR$(n) changes the line spacing to n/72 of an inch. The loop that is started in line 10 increases the value of n (the variable I in the program) each time it is executed. So the line spacing in- creases as the program continues. Line 20 just shortcuts the loop when I = 13, since BASIC won’t let us send CHR$( 13) without adding an unwanted CHR$(lO) to it. Finally, the < ESC > “2” in line 60 resets the line spacing to 6 lines per inch. This is a shortcut that is.the same as < ESC > “A” CHR$(12).

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