~===~=~HOT
NEUTRAL
PROTECTIVE
GROUND
2222627-14
Figure 2-11. Three-Wire
Power
Receptacle
CAUTION
The
printer
must
be
connected
to
a
three-wire
(with
earth-ground)
ac
receptacle.
If
an
extension
cable is
needed,
the
cable
must
be a
three-
wire
cable
which
includes
an
earth-
ground
connection.
Failure
to
provide
an earth
ground
can cause
faulty
operation,
data
errors,
possi-
ble
damage
to
the
printer,
and
pos-
sible
electrical
hazard
to
the
operator.
2.7
ACTIVATING
THE PRINTER
CAUTION
Before
activating
your
printer,
allow
at
least
15
minutes
after
unpacking
for
it
to
adapt
to
ambient
temperature
and
humidity.
When the power switch
is
put in the ON position,
the printer does
an
automatic test that takes about
30
seconds. While the test
is
being done, the fol-
lowing
events should occur:
1.
All indicator lights (except
Command)
turn on.
2.
Indicator lights turn
off
in the following
order:
a.
On Line
b. Paper
Out
c.
Test
d.
Menu
e.
Error
3.
The carriage moves to the right bumper
and then to the
left bumper.
4.
The printer makes a short audible tone.
5.
The
Power
and
Normal
indicators
remain on. The
Paper-Out
indicator
flashes
if
you have not loaded paper. The
On Line indicator turns on
if
the printer
is
configured
to
power-up on line (configu-
ration code 9B selected).
If
your printer does its automatic power-up test
without these
results,
see
Section 4,
liST
ATUS
REPORT
AND
PROBLEM
ANALYSIS."
2.8
ADJUSTING
THE PRINTHEAD
The printhead must
be
adjusted to the thickness
of
the form used.
For
the initial adjustment, and
to
make corrections for different paper thicknesses,
complete the following steps:
1.
After loading paper, move the printhead
toward the
platen by pushing the print-
head
adjustment lever slightly
to
the right
and then toward the back
of
the printer.
Allow
the printhead barely
to
touch the
paper.
2-7
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