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Introduction
onto the paper, with the dots arranged according to preset matrix
patterns (imaginary grids). Because the characters are printed in
a series (one after the other), Gemini is called a
serial, impact dot
matrix printer.
Above and behind the platen is a device for bearing and
propelling fanfold computer paper. The
tractor
unit is used with
computer paper having perforated and punched paper guides on
the sides.
0
POWER
0
READY
DON
LINE
0
PAPER
OUT
01
F.F.
1
-1
figure 14.
The "power"
lamp glows
green when the power is "on:'
The "ready"
lamp gives you the green
light for "go"
when the
printer
is ready to accept
data.
During
transmission,
the lamp
flickers.
The "on line"
lamp is green, and glows when data transmission
is possible.
The red lamp of "paper
out"
means just that: your printer
is out
of paper and has stopped
printing.
The "On Line" button
lets you alter the printer status between
be-
ing "local"
(which means independent
and on its own) and being
"on line" (which
means able to receive
data transmitted
from a
computer).
When
you
turn
the
printer's
power
"on:'
you're
automatically
"on line!'
F.F. stands for "Form Feed:' When you're in the "local"
mode, you
can tap this button
and advance
the paper that is being "fed"
in-
to the printer to the first line of the next page, or to the start of the
next form.
L.F. means "Line Feed" and allows you to advance
the paper one
line at a time. It's like rolling a page through
a typewriter,
advanc-
ing you to the next line. If you hold this button down, you'll get con-
secutive
line feeds, one right after the other.
The control panel (atop the right front of your prin tetj tells you
the status of your controls, lets you switch between "on line" and "'local,"
as well as feed more paper through your machine. Take Gemini "off line"(so
the "On line" lamp goes off) to operate the form feed and the line feed.
5
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