PORTABLE PRINTER

摘要

[object] To provide a handheld printer capable of preventing mistaken operation of a power key and function key adjacently disposed. [Solving means] A bulging volume h1 of a bulging part 39a of a metal dome member 39 of a power key 30 is configured to be greater than a bulging volume h2 of a bulging part 49a of a metal dome member 49 of a feed key 40. As a result, the metal dome member 39 applies a larger reaction force than the metal dome member 49, necessitating a larger pressing force for operating the power key 30 than when operating the feed key 40.