HP 7914CT Installation, Operating And Service Manual page 54

Disc tape drive
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Operation
occur, a unit fault
will
be logged
and
reported
to
the host
computer;
it
will
also
be
necessary
to
restart
the
cleaning
operation.
Slightly
dampen
the
straight
end
of the cleaning
swab
with head
cleaner.
Hold
the tape drive
door
open and
insert
the cleaning swab.
(The
tape
interior
is
shown
for clarity
in
figure 3-3.)
Use
the
swab
to
momentarily
press
and
release
the
cartridge -in -place
switch;
after
a
2
-second
delay,
the tape
head
is
raised
and
the capstan
rotates.
To
clean the rotating capstan, hold the
swab
against
its
left side.
3-24.
TAPE
HEAD
CLEANING
Slightly
dampen
the
right
-angle
end
of
the
cleaning
swab
with head
cleaner.
Hold
the tape
unit
door open and
insert
the cleaning swab.
(The tape
unit
interior
is
shown
for
clarity in
figure 3-3.)
Wipe
the
ceramic head
surface
with
an up and
down
motion.
Use
the
swab
to press
and
release
the cartridge -in-place switch
to
stop
capstan
rotation
and
to
return the tape
head
to
its
starting
position.
NOTE
1
The
tape stepping
motor
will
make
a
"buzzing"
sound
as
the
head
is
stepped
down;
this
is
normal.
1
NOTE
Do
not reuse cleaning swabs; discard
after
use.
3-25.
POWER-DOWN
SEQUENCE
To power-down
the
drive,
proceed
as
follows:
a.
Unload and remove any
tape
cartridge,
using
the
instructions
given
in
paragraph
3-21.
b.
Set the front
panel
power
switch
on
the
tape drive
and
the rear
panel
power
switch
on
the
tape drive
to
0
(off).
3-8

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