For Safety; Key To Symbols; Restriction Of Use - Epson TM-m30 User Manual

For Safety

Key to Symbols

The symbols in this manual are identified by their level of importance, as defined below. Read the following
carefully before handling the product.

Restriction of Use

When this product is used for applications requiring high reliability/safety, such as transportation devices
related to aviation, rail, marine, automotive, etc.; disaster prevention devices; various safety devices, etc.; or
functional/precision devices, etc., you should use this product only after giving consideration to including fail-
safes and redundancies into your design to maintain safety and total system reliability. Because this product was
not intended for use in applications requiring extremely high reliability/safety, such as aerospace equipment,
main communication equipment, nuclear power control equipment, or medical equipment related to direct
medical care, etc., please make your own judgment on this product's suitability after a full evaluation.
Provides information that must be observed to avoid damage to your equipment or a
malfunction.
Provides important information and useful tips.
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