IBM 7013 J Series, Operator'S Manual

Page: 70 / 297

2-38
Operator Guide
Cleaning the 1/4-Inch Cartridge Drive
It is recommended to clean the read/write heads:
•
after any period of 8 hours use
•
after the first use of a new cartridge.
The frequency of cleaning depends on the number of hours of daily use, on average, once a
week.
For effective cleaning, it is recommended to use a 1/4-Inch tape unit cleaning cartridge.
Whenever a new tape unit is brought into service, the following operations should be
performed:
•
A complete cycle of winding/rewinding, which has two results:
– it tightens the magnetic tapes
– it cleans the magnetic medium.
•
The tape unit should be cleaned with the cleaning kit.
It is also necessary to carry out a winding/rewinding cycle on any tape unit which has not
been used recently.
Environmental Considerations for 1/4-Inch Tape Cartridges
Information in this section describes operating and storage conditions including
temperature, relative humidity, and maximum wet bulb data.
Attention: The manufacturer has specified a set of temperature and humidity ranges in
which the 1/4-inch data cartridge can operate with ease. Only regular cleaning procedures
are required when operating the cartridge within this range. The risk of possible data loss is
increased if 1/4-inch tape cartridges are operated, stored, or shipped outside the
temperature or humidity ranges shown in the following table.
Before using a cartridge, always let it adjust (acclimate) to the operating environment. Do
this by placing the cartridge with its container in the operating environment for as long as it
has been away from this environment or for 24 hours, whichever is less.
Acclimation is necessary for any data cartridge that has been exposed to a different
humidity environment or a temperature change of 11
°
C or 20
°
F, or more.
Environment Operating Ranges
Operating Ranges
Non-operating Ranges
Temperature Requirements 16 to 32
°
C (60 to 90
°
F) 10 to 43
°
C (50 to 110
°
F)
Relative Humidity Requirements
(non-condensing) 20 to 80% 20 to 80%
Maximum Wet Bulb Limits 26
°
C (79
°
F) 27
°
C (80
°
F)