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Simple TTY Emulation
87
Vertical Position
Line Feed LF
Causes the current line to be printed, and then advances the paper one line at the current line spacing. If
“Auto CR” is set to “On” in the interface setup menu, a carriage return will also be performed.
Control code: LF
Hexadecimal: 0A
Form Length and Form Feed
Form length is the distance from the top of the form to the bottom of the form. A form feed will advance the
paper to the top of the next form. Some programs do not send form feeds. Instead, they count line feeds,
and send the appropriate number of line feeds to fill out the page. The usual rational is that the program is
then in complete control of form length, and will work on any printer without requiring the correct form length
to be set. However, the correct form length should always be set with the control panel setup. Even if the
program does not use form feeds, the printer will automatically scroll a completed form up to the tear bar to
be torn off. This automatic scroll is based upon form length. The easiest way to set form length is via the
“Form Length” value in the forms menu so it will be correctly set for everyone using the form.
Form Feed FF
Causes the current line to be printed, and then advances the paper to the top of the next form. If a top
margin is set, printing will continue at the top margin. Setting “Host FF at TOF” to “No” in the interface
setup menu allows a form feed to be ignored if the paper is already at top of form. If “Auto CR” is set to
“On” in the interface setup menu, a carriage return will also be performed.
Control code: FF
Hexadecimal: 0C