Overstrike; Select Sfcc - IBM 6400 Setup Manual

Overstrike

The OVERSTRIKE option determines the action required when a line is
printed over a previous line because a carriage return was received without a
line feed.
ENABLE (the default) prints the second line on top of the first line.
DISABLE replaces the characters from the first line with the second line.
Define LF Code
The DEFINE LF CODE (Define Line Feed Code) option determines whether
an automatic carriage return should occur whenever a line feed command is
received.
LF = CR + LF (the default) forces an automatic carriage return with each
line feed command. The next print position will be position 1 of the next
line.
LF = LF does not perform an automatic carriage return. The next print
position will be the current print position of the next line.

Select SFCC

The SELECT SFCC option determines what hex code to use as the Special
Function Control Character (SFCC). When a printer control code consists of
more than one character, it is called a command sequence. The SFCC alerts
the printer that a command sequence is next and not a printable character.
The option SFCC can range from 0 through 7F. The factory default value
is 1. See the 6400 ASCII Programmer's Reference Manual for more
information.
EVFU Select
The EVFU SELECT (Electronic Vertical Format Unit Select) option
determines if EVFU skips can be defined. An EVFU skip is an instruction to
move the paper to a specific location on a form. See the
6400 ASCII Programmer's Reference Manual for more information.
ENABLE (the default) defines EVFU skips.
DISABLE does not define EVFU skips.
Chapter 4. Configuration Menus 4–71