4.4.3 Standards for Prohibition of Use
When circumstances correspond to any of the following items, the continued use of that cartridge is prohibited. Exchange to a new data cartridge is necessary.
□When the data cartridge is subjected to a strong shock such as being dropped and it sustains damage.
□When the recording surface becomes soiled with liquid such as a soft drink, coffee, or tea, or a solvent, metal dust, tobacco ashes, or other contaminants.
Tip
Use of a data cartridge that falls under the aforementioned description may damage the heads or the device, or make it dirty and may cause breakdown of the device. If the soiled or damaged heads go unnoticed and the device is used as is with a new data cartridge, the new data cartridge will become soiled or scratched and the damage may spread.
4.4.4 Service Life
The life of the data cartridge will vary depending on the environment in which it is used and the following matters should be taken into consideration. (The service life may become shorter than the guideline depending on the environment in which it is used including such factors as temperature, humidity, and dust.)
□When a new data cartridge is used, a control number is assigned. It will probably be convenient to enter that number on the label of the data cartridge.
□Create a data cartridge control number ledger, record the days used, and estimate the number of years used and the cycles used.
□Periodically check the control ledger and marked labels of the data cartridges and dispose of the data cartridges when they have been used for a long time and their reliability is low such as when there is an occurrence of write and read errors.
4.4.5 Storage of Data Cartridges
Please observe the determined storage conditions and always keep the storage location clean.
□We recommend that the data cartridges be kept in the write protect condition.
□When cartridges are to be stored over a long period, we recommend that the data is read periodically to check that the backup data can be restored.
□In consideration of an unlikely but disastrous event, we recommend storage of data cartridges at a location remote from the system.
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