67
back to the top of the page to start the second column. The
code for reverse form feed is easy to remember: < ESC>
<FF>.
Table 5-3
Form feed commands
Function Control code
Advance paper to top of next page CHR$(12)
Reverse paper to top of current page < ESC > CHR$( 12)
Sets the top of form to the current < ESC > “4”
position (IBM-P mode only)
W Changing the page length
You may have some computer forms that are not 11 inches
high. That’s no problem, because you can tell your printer
how high the forms are that you are using. There are two ways
to do this; set the Form Length switch to your form’s length
before turning on the power, or use one of the two commands
shown in this table.
Table 5-4
Form length control
Function Control code
Set the page length to n lines < ESC > “C” CHR$(n)
Set the page length to il inches < ESC > “C” CHR$(O) CHR$(n)
( Let’s set up a 7 inch high form length, which is typical of
many computer checks. The following program will do it.
NEW
10 ’ Demo of variable form lengths
20 LPRINT CHR$(27);"C";CHR$(O);CHR$O;
30 LPRINT "PAY TO THE'ORDER OF:"
40 LPRINT CHR$(12);
50 LPRINT "PAY TO THE ORDER OF:"
60 END
This program should print “PAY TO THE ORDER OF:”
twice, and they should be 7 inches apart. Line 20 sets the form
length to 7 inches. After line 30 prints, line 40 sends a form
feed advance the paper to the top of the next form. Line 50
then prints its message.