3.1
INTRODUCTION
SECTION
III
OPERATION
This section explains the manual operation
of
the disk drive
and
defines the interface
functions with regard
to
timing. levels, and interrelationships.
3.2
CARTRIDGE
HANDLING
AND
STORAGE
The
magnetic coatings on the disk surface
have
the ability to retain recorded intelligence
for
an
indefinite period. The recorded data does not tend to weaken
or
fade with age;
however. the physical properties
of
the recording medium are susceptible
to
damage.
It is important that the disk cartridge be properly handled and stored so that the integrity
of the recorded data is maintained. A damaged or contaminated cartridge can impair
or
prevent recovery of data and
can
result in damage to the disk drive.
CAUTION
DO
NOT
ATTEMPT
TO
INSTALL OR USE A CARTRIDGE
WHICH DOES
NOT
HA
VE
A DISK-DRIVE COMPA TIBLE
BIT-DENSITY
RA
TING OR IS SUSPECTED OF
DAMAGE
OR CONTAMINA TION.
A disk drive which has
been
damaged or contaminated due to use
of
a defective cartridge
should not
be
operated with other cartridges until the disk drive has
been
inspected
and/or
reconditioned
by
qualified service personnel. The rated density
of
each cartridge must be
compatible with that of the disk drive being used.
The following methods
will ensure maximum protection
of
disk cartridges.
(1)
The head port door on front load cartridges should
be
kept closed when the
cartridge is not inserted in a disk drive. This prevents the ingress
of
dirt and
secures the disk
internally.
(2)
Top load cartridges should
have
the bottom cover in place
at
all times when the
cartridge is not inserted in a disk drive.
Do
not allow the bottom cover to
accumulate
dirt
or other debris.
(3)
Cartridges
can
be stored either horizontally or vertically. Front load cartridges
must always
be
positioned to avoid objects which could damage the hub or cause
the air inlet door to
be
pushed open.
CAUTION
DO
NOT
PLACE CARTRIDGES IN A STACK CONTAIN-
ING MORE THAN 5 CARTRIDGES.
(4)
Avoid exposure of the cartridge to any magnetizing force in excess
of
50
oersted
or loss of stored data may result.
NOTE
The
50
oersted level
of
magnetizing force is reached at a
distance
of
approximately 76.2 mm [3 inches) from a
typical source.
e.
g., motors. generators. transformers.
(5)
Do
not store the cartridge in direct sunlight; temperatures outside the range
of
O.so
to
SO°C
(33° to 140°F) should
be
avoided for non-operational storage.
3-1
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