GE TermiNet 300 Programmer's Manual page 24

From the preceding example, you can conclude that the anticipated number of
times the data is rewritten in the manner described will dictate the number
of "fill" characters that should be written on the first tape.
OUTSIDE DATA SOURCE
If
data to your Printer is from a source other than your local Reader or TeA,
"fill" characters (or data pauses) should be used for all Printer operations
shown in the Time Delay and Fill Character Table.
The time delay figures listed in the table should cover any system configuration.
It is possible, in certain systems, to reduce some of the time delay requirements
listed. However, each possible situation within a customer's system would have
to be studied to make certain it would work. It is not recommended that any
time requirement be shortened as the time gain would be minimal and the possi-
bility of errors would be great. If unusual circumstances warrant consideration
of an exception to the time delays specified, DCPD Engineering, Waynesboro,
Virginia, should be consulted.
PRINTER OPERATION
Normal Single
Linefeed*
Repeated line feeds
Backspace**
Startup**it-
Shutdown****
Vertical Tab
&
Form Feed
Note
The Time Delay and "Fill" Character Table
supersedes Table 4 in GEK-15002A.
TIME DELA Y AND "FILL" CHARACTER TABLE
FOR THE TermiNet 300 PRINTER
INTERVAL
BETWEEN
last char. on old
line am firs t
char. on new line.
(a) Last char. on
old line
&
second
LF code.
(b) Subsequent LF
codes.
Printing and then
reprinting in same
position.
Commanding motor
on and printing.
last data. char.
VT or FF com-
mand and 1 st
character
APPROXIMATE INTERVAL
IN MILLISECONDS
300
350
67
230
430
300
6
2
8
3
2 1
6
12
6
9 4
o
1
o
2
4
3
PLACEMENT OF FILL CHAR.
After line feed code
After first line feed code.
After the secorrl
&
sub-
sequent line feed codes.
After the backspace code.
After "Motor On" code.
Between last data char-
acter and "Motor Off"
code.
-
-
-
-
-
-
- - -
-
-
-
-
-
- - -
-
- -
- -
-
-
-
-
- - -
- - - -
- - - -
-
300
+
(25 x No. of Lines) = Required Time Delay in Milliseconds
300
+
(25 x No. of Lines)
=
Number of Fill Characters
Characters per Second
*If there is no CR, one ufill" character should be added to that shown.
**If BACKSPACE code is used more than once, it may take the place of "fill" characters; e.g., at 30 cps, to type and
1UXlerscore
"AliID.",
seni AND BS BS BS fill fill fill - - - . The delay is required to insure hammers have
recovered from the previous actuation.
*i~*The
TermiNet 300 Printer will go from a motor off state to a printing or "ON LINE" state in response to the two
code sequence ESC h or H, or also in the case of automatic motor on from the Dataset. The delay is required to allow
the motor to come up to speed.
****The TermiNet 300 Printer will go from a printing "ON LINE" state to a motor off state in response to the two
code sequence ESC
j
or J, by the EOT code (when strapped), or also in the case of automatic motor off from the
Dataset. The delay that precedes the motor off command is required to allow time to print any characters that are
in memor,y waiting for the proper registration of the hammers and belt.
1-72 (3M)
Data Communication Products DepartmenteGeneral Electric Company
Waynesboro,
Virginia 22980