5.2
Head
Cleaning
on
Field Applications
Head
cleaning
is
recommended
at
user's
sites,
especially
when
used
in severe environments, because the heads
may
accumulate
dust
in
the
air
and
mag~etic
coating material of the
disk,
causing chance
of
error
increase and/or
scratch
on
the disk
surface.
Recommended
sch:?dules
and
procedures are as follows:
1)
Cleaning Schedules
(1) Periodical cleaning using
wet
type cleaning
disk.
i.
Once
a mrnth for
normal
usage in
normal
environments.
ii.
Should
be
increased to about once a
week
when
used in severe environments such as dusty
area,
high humidity, high
and
low
extreme temperatures.
Low
temperature such as 5
to
10°C
(41
to 50°F)
under
hi~h
humidity
is
most
severe
for
diskettes.
iii.
Higher frequency
for
brand
new
drives
would
be
recommended.
for
about once a
week.
Better
matchnirg between
head
and
medium
would
be
produced
by
a
10119
time use, as experienced.
(2)
When
frequent
errors
are
detected.
(Wet
or
dry type
may
be
Jsed.)
(3)
Whe.l
scratch(es)
are found
on
the
medium
surface.
(Wet
or
dry type
may
be
used.)
2)
Recommended
Head
Cleaning Material
(1)
Wet
type
Innovative
Computer
Products*,
Head
Cleaning Kit (or
equivalent).
*18360
Oxnard
Street,
Tarzana.
California
91356
(213)
996-4911/TWX
910-493-5964
(2)
Dr}
type
To
be
supplied
by
Mitsubishi
representatives.
No
substitutions
would
be
allowable unless accepted
by
fartory
test.
