Terminet 300 Printer Controls; Keys - GE TermiNet 300 Beginner's Manual

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BEGINNERS GUIDE
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If the Print;~r cones)!)
dnd runs, and you set
tne Printer 5"lIitclles in the positions
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the ins t r u c t ion s
exactly, t;leri
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'f/ill s2lJom b83ny difficulty
inc a
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com put
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eve r, y au s
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au
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be ac~udinte~ with some of the infre1uent
problems that can occur.
C()'\~PUTt:;={
RECEIVES INCORRECT
DATA.
If you tYre 3n incorrect character, or if
a
transmission error causes the computer to
r~ceive
j
wron~
chQracter, the computer may
not know whdt you want. At certain times the
comGuter ex~ects a specific response, for
instance, the User Number is always first in
t~e
si0n on proceJure. If it doesn't get a
vdlic::i
US2r ;~umbei at
this poi:it, the computer
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ire c t
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an
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\ t
orner
t.H=?
COinputer doesn't know
expect, it may
respond witl) its
que
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t. ion,
n
d ~ ely, " I~
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you to
correct
the
qreviolJs
line
or command. Of
course the error may not
be
yours
(transmission error, for instqnce)
in
which
c~se
you would repeat the previous line or
c ,')mman d •
l~LECTRICAL
DISTURBANCES ON TELEPdONE LINES.
j,:cdsionally there is an electrical
li'.:;turhance on the telephone line. This is
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t
apt to ha open on hot surn:ner af tern oons
,',',Icn
lightning storms are fai rl y common. \'~hen
bad disturbance occurs, the Printer
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JIt
RRUPT pu shbu t ton ll:Jht s.
~~he
n th is
tl
lppens, severalji fferent tnings could
',iccur:
I •
inca rre ct,
printina.
~or9
characters will be
out
the Printer will keep
If this happens, the keyboard will
become inoperative; otherwise Printer
operation is normal. To restore
keyboard operation, you will have to
press the INTERRUPT pUShbutton.
2. In addition to characters being
wrong, the Printer may return to
STANDBY
(STANDBY pushbutton liJhts,
ON LINE pushbutton goes out).
If this occ~rs, you will have to
press the ON LINE and the INTERRUPT
pushbuttons to restore normal
operation CIt
~akes
no difference in
which order they are pressed, or, for
that matter, they can be pressed
simultaneously).
3.
In addition to the previous symptoms,
the Printer may rapidly print
Illeaninqless strings of characters;
this is caused by
1055
of the
telephone line.
GEK-35970
If this occurs, you will nave to
start your
co~puter
calling sequence
allover again. Remember to restore
keyboard operation by pressing the
INTERRUPT pushbutton.
SYSTEM FAULTS.
It doesn't happen very often, but once
while, the system malfunctions in such a
that it will no longer respond to
commands. After
a
few seconds of this
should disconnect.
in
a
way
your
you
TermiNet 300 PRINTER CONTROLS
Now tnat you are aole to call the computer,
let1s increase your knowledge of so~e of the
other Printer controls.
KEYS
Most of the keys are already familiar to you;
therefore, there should be no need to
discuss the white keys. These are Just like
the keys on an electric typewriter. The one
possible exception to this is the underline
key. ( Ref e r to F i
gu
reI ) •
uNDERLINE.
Pressing this key will print an underline
chdracter regardless of whether or not the
5 H I
FT key ish e
1 d
do \"/ n.
W [)
e n you are tal kin
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to another TermiNet 310 Printer the underline
character will print out; however, if you are
talking to
a
computer, the computer will
consider the underline character to be an
erase signal for the ~revious character. We
will consider this later when we discuss
talking to the Mark II computer.
Now let's look at the control keys.
RIGHT SIDE KEYS.
BACKSPACE.
The
BS
key is the Backspace key. This key
performs exactly the same as the backspace
key on an electric typewriter. Any time you
press this key, the Printer backspaces one
character space unless the PPI says
I.
If the
PPI
says
1,
the backspace command is ignored.
REPEAT.
The RPT key is the REPEAT key. If this key is
held down, the action required by any other
sinqle key bein0 held down will be performed
5 times per second. For example, if both the
A and RPT keys are held down,
5
A's would be
printed each second. Likewise, if both the
Space Bar and RPT keys were held down, the
Printer would space across the line at
5
spaces per second.
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