Radio Shack TRS-80 Model II Reference Manual page 71

LIBRARY COMMANDS
FORMS C= 14
Sends the initialization code
X' 14'
to the Printer after resetting the default
parameters.
FORMST
Advances Printer to top ofform. Useful when you have done some printing and
want to start next printing at top of form.
FORMSS
Sets up the serial printer driver.
Setting the Parameters
Page Size. Multiply your form length in inches by the number of printed lines
per inch to get the appropriate value. Most Printers print 6 lines per inch.
Therefore standard ll-inch forms have a page size of 66 lines. That's why the
default is
PAGE=66.
Lines per page. This number determines the number of blank lines at the
bottom of each page. If you set lines equal to page size, then
TRSDOS
will print
every line on the page. If
you set lines equal to page size minus 6, then
TRSDOS
will leave 6 blank lines on each page. Lines per page cannot exceed page size.
Width. This number sets the maximum number of characters per line. If a
print line exceeds this width,
TRSDOS
will automatically break the line at the
maximum length and continue it at the beginning of the next Print line.
Control Codes. Some Printers require an initialization code (for example, to
set up for double-size characters). The code you specify is sent to the Printer
during execution of the
FORMS
command.
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