| 摘要 |
PURPOSE:To provide an operating key top capable of push-down operation both in the vertical use and horizontal use of a recording device such as a printer. CONSTITUTION:The circuit board 11 of a device has a push switch 12. A manual operation part provided on a device facing 1 to operate the push switch 12 is formed of two sets of key tops 5, 6 which are pushed nearly downward and operated when the device is horizontally and vertically set. |
