Keypad assembly, and image forming device and data processor incorporating the same

A keypad assembly to be installed in a device body, comprising:

• a first keypad element including a first frame element, first elastic elements connecting with the first frame element, keycaps swingably connected to the first frame element via the elastic elements, and pressing elements protruding downward from the keycaps;
• and
• a second keypad element including a second frame element, second elastic elements connecting with the second frame element, keycaps swingably connected to the second frame element via the second elastic elements, and pressing elements protruding downward from the keycaps, wherein
• for installing the keypad assembly in the device body,
• the first and second keypad elements are placed one on the other, so that the keycaps of the first keypad element and the key caps of the second keypad element are arranged with a constant interval on a same plane without vertically overlapping each other and top faces of all the keycaps are positioned at a same height, and the first and second frame elements are placed at a same position vertically and the first and second elastic elements are placed at a same position vertically.