Trigger assembly, adapter, cartridge, cartridge set, image forming apparatus, and detection method

The embodiment of the invention provides a trigger assembly, an adapter, a box, a box set, an image forming device and a detection method, and the trigger assembly comprises an assembly unit which can be installed on the box, and the box is detachably arranged on an image forming device body; the image forming device comprises a containing cavity, a conductive unit, a matching unit and an electric signal response unit. The assembling unit is used for being matched with the matching unit, so that the box can be mounted to a preset position in the accommodating cavity; the electric signal triggering assembly is used for being electrically connected with the conductive unit and triggering the electric signal response unit to obtain a preset response signal when the electric signal triggering assembly is installed on the assembling unit of the box and the box is installed to a preset position in the containing cavity, and the preset response signal is used for judging whether installation of the box meets the exp