IMAGE FORMING DEVICE, EXCHANGE UNIT AND METHOD FOR DETERMINING EXCHANGE UNIT

摘要

This image forming device 1 comprises: a detachable unit 70 with a detachably installable toner unit 30 unit that includes a fuse 35 that can melt on receiving a current; and a controller 91. The controller 91: applies to the fuse 35 a non-fusing energization signal corresponding to a first current-supply mode that does not cause melting of the fuse 35, and a melting energization signal corresponding to a second current-supply mode that causes melting of the fuse 35; detects whether or not the fuse 35 is melted due to the application of the non-melting energization signal, and whether or not the fuse 35 is melted due to the application of the melting energization signal, respectively; and determines whether or not the toner unit 30 installed in the detachable unit 70 is a specific exchange unit on the basis of the results of detecting whether or not the fuse is melted.