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Bells and Whistles
FORM LENGTH, TOP OF FORM .AND FORM FEED
Setting form length lets the printer kn.ow how long the paper
is; Top of Form records the position ofthe first line of
printing on the page
-
that is, it sets the top margin. After
printing several lines, performing a Form Feed will then auto-
matically move the paper up to the first printing line of the
next page.
Form Length and Top of Form can be
-
and usually are
-
set
with the controls on the front of the printer (see pages 59-
61 ). They can also be set using the control codes below in
your program
.
Control codes for
setting:
Form Length
ESC F 00-99
CHR$(27);CHR$(70);"00-99" 1B 46 30-39
30-39 (hex)
-
sets form length at the two-
d igit number of lines up to a
maximum of 99 lines
NOTE
:
This ESCape sequence overrides the setting on the FORM LENGTH
dial.
ESC F 00
Top of Form
ESC 5
Form Feed
FF
CH R$ (27) ;CH R$ (70) ;"00"
1B 46 30
30 (hex)
-
cancels form length set by
program
CH R$(27} ;CH R$(53}
-
sets top of form
1
B
35 (hex)
CHR$(12}
OC (hex
)
-
advances paper to top of ne xt form
NOTE: TRS
-8
0
computers w
ill not recogni
ze
this code
.
Suppose you want to print on a three-inch
fo
rm with one-
inch margins at the top and the bottom
.
87
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