IBM 6400 Setup Guide

4–40
6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
Compatibility Option 5: Null Suppression
NULL SUPPRESSION will either treat nulls as blank spaces or ignore them.
If nulls are ignored, the print position does not move.
• OFF (the default) ignores nulls.
• ON treats nulls as blank spaces.
Compatibility Option 6: Form Feed Command Position
FORM FEED COMMAND POSITION determines if the position of a form
feed command affects its execution.
• OFF (the default) normally performs a form feed only if it occurs at the
first print position in a line or at Maximum Print Position +1. (The
Maximum Print Position is the line length.) A form feed command at any
other position is recognized as a blank.
• ON allows the printer to perform a form feed command anywhere in the
data stream.
Compatibility Option 7: Automatic Form Feed at End of Print
Buffer
AUTOMATIC FORM FEED AT END OF PRINT BUFFER specifies
whether or not to perform an automatic form feed at the end of a print buffer.
• OFF (the default) performs an automatic new line command after
completing a print buffer (unless a form feed, new line, or carriage return
command was the last one executed). The printer is set to print at print
position 1 of the next line.
• ON performs an automatic form feed after completing a print buffer
(unless a form feed command was the last one in the buffer). The printer
is set to print at print position 1 of the first line of the next form.

IBM 6400 Specifications

General

Brand	IBM
Model	6400
Category	Printer
Language	English