Epson TM-T20II OT-WL05 Technical Reference Guide - Page 4

Cautions CAUTION Be sure to observe the following points to prevent failures, damages, and malfunctions.  Only connect to a compatible TM printer.  Do not leave for an extended period in locations that have high temperatures or humidity levels.  Do not let this product get wet.  Do not drop or let this product receive an impact. Usage Precautions To comply with the requirements, a distance of at least 20 cm {7.87"} must be maintained at all times between the antenna of this product and people in the vicinity. Wireless Telegraphy Act Regulations The following acts are prohibited by the Wireless Telegraphy Act.  Modifying and disassembling (including the antenna)  Removing the label of conformance 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. Product Servicing This product cannot be serviced at the component level. In case of a fault, replace the OT-WL05 itself. 4