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Head Cleaning - Mitsubishi Electric M4853 Maintenance Manual

5.25 inch flexible disk drive
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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 magnetic coating material of the disk,
causing chance of error increase and/or scratch on the disk
surface .
Recommended schedules and procedures are as follows:
1)
Cleaning Schedules
(1)
Periodical cleaning using wet type cleaning disk.
i.
ii.
iii.
(2)
When frequent errors are detected.
may be used.)
(3)
When 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).
(2)
Dry type
To be supplied by Mitsubishi representatives.
substitutions would be allowable unless accepted
by factory test.
Once a month for normal usage in normal
environments.
Should be increased to about once a week when
used in severe environments such as dusty area,
high humidity, high and low extreme temparatures.
Low temperature such as 5 to 10°C (41 to 50°F)
under high humidity is most severe for diskettes.
Higher frequency for brand new drives would be
recommended, for about once a week.
matchning between head and medium would be
produced by a long time use, as experienced.
*9174 Deering Ave., Chatsworth, CA 91311
(213) 998-24 00/TWX 910-493-2188
Better
(Wet or dry type
No

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