22Wall Hanging Bracket (Optional)To fix the printer to a wall, follow the procedures below:(1) Mount two metal screws (thread diameter: Φ4, head diameter: Φ7) on the wall,spaced 62mm apart in a horizontal line, such that the length of each screwentering the wall is at least 10mm and the length protruding outside is 2-4mm.62mm2~4mm7~9mm 4mmMore than orequal to 10mmCaution: In order to firmly fix the printer, mount the wall hanging bracketonto a wooden, concrete or metal wall. It is recommended that thewall thickness should be 10mm or more.Use metal screws.The screws mounted on the wall are required to have a pull-outstrength of 150N (15.3kgf) or more.Caution: The wall hanging bracket can be used only for printers that usean external AC adapter (Standard Model).