GE TermiNet Vertical Format Unit Instruction Manual page 19

GEK-36143
TermiNet 1200 PRINTER
Time
Interval
Function Definition of Time Interval In Msec 120 cps
Following a Print- Length of New Line including 320 plus
38.5 plus
able Line Ending in carriage return and/or platen 27 per 3.3 per
Vertical Tab or Form moving code line*
line
Feed
Following a Non- Length of New Line including
90 plus 10.9 plus
Printable Line
carriage return and/or platen 27 per 3.3 per
Ending in Vertical moving code line*
line
Tab or Form Feed
*
A maximum of 36 printable characters may be included during this time interval.
**One character minimum - always round off to next higher number.
NOTE
Although the following data format is different
from the format specified for TermiNet 300
Printers, all data formatted for TermiNet 300
Printers will be accurately printed by TermiNet
1200 Printers when operated at, or below, the
baud rate for which the data was formatted.
However, the efficiency of printing on the
TermiNet 1200 Printer may be improved by
reformatting the data to take advantage of the
greater memory of the TermiNet 1200 Printer.
Fill Character Requirements
Number of Characters
To Equal Time Interval
30 cps 15 cps 10 cps
9.6 plus 4.8 plus 3.3 plus
.81 per .41 per .27 per
line** line** line**
2.7 plus 1.4 plus .9 plus
.81 per .41 per .27 per
line** line** line**
A new line must be at least 300 milliseconds long, including the platen moving code at the end, if it follows a line
which has one or more printable characters and ends in LF. This time allows the last printable character on the
previous line to be printed and the line feed to be executed before the next platen moving code is received_
This rule is satisfied during normal text where LF is the only platen moving code if each line including the LF code
is a minimum of 36 characters long at 1200 baud,
9
characters long at 300 baud, 4.5 characters long at 150 baud, or3
characters long at 110 baud.
FOLLOWING A PRINTABLE LINE ENDING IN VT OR FF
Of interest here is the time interval of 320 milliseconds plus 27 milliseconds per line of form movement immediately
following a VT or FFcode at the end of a line including at least one printable character. A platen moving code (LF,
VT, or FF) during this time interval must be the last character in the time interval. The time interval may include no
more than 36 printable characters. (This restriction is 36 printable characters at all baud rates_) The remainder of the
time may be taken up by time delay or fill characters.
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