Image forming apparatus

1. An image forming apparatus comprising:

at least one image forming unit that is disposed in an apparatus main body and forms a toner image;

at least one toner supply device that is loadable and unloadable with respect to an installation space in the apparatus main body and supplies a toner to the image forming unit, in which the toner supply device includes a toner supply opening that is communicatively connected to the image forming unit and an open/close member that opens and closes the toner supply opening;

a detection unit that detects, regarding the toner supply device loaded into the installation space, a type of the toner supply device or detects improper loading of the toner supply device; and

a notification unit that notifies loading of the toner supply device of a wrong type or improper loading of the toner supply device based on a result of detection by the detection unit,

wherein the toner supply device comprises an open/close joint that operates the open/close member to open and close;

the open/close joint has different shapes according to the type of the toner supply device;

the apparatus main body comprises a driving joint that has a shape that can or cannot be connected to the open/close joint according to a shape of the open/close joint after loading the toner supply device to the installation space, the driving joint switching the open/close member of the toner supply device to an opened state by driving the open/close joint when connected; and

the detection unit detects the type of the toner supply device based on an opened or closed state of the toner supply opening of the toner supply device.

2. The image forming apparatus according to claim 1 , wherein the driving joint is not connected to the open/close joint in a case in which the toner supply device of a correct type is improperly loaded into the installation space, and

the detection unit detects improper loading of the toner supply device based on a closed state of the toner supply opening.

3. The image forming apparatus according to claim 1 ,

wherein the driving joint comprises a rotator that has a shape that can or cannot be connected to the open/close joint according to the shape of the open/close joint after loading the toner supply device to the installation space, the rotator rotating upon connection with the open/close joint, and

the detection unit detects the type of the toner supply device based on a position of the rotator.

4. The image forming apparatus according to claim 3 , wherein the rotator is not connected to the open/close joint in a case in which the toner supply device of a correct type is improperly loaded into the installation space, and

the detection unit detects improper loading of the toner supply device based on a position of the rotator.

5. The image forming apparatus according to claim 1 , wherein the apparatus main body comprises a cover door body that opens and closes an opening of the installation space,

the cover door body opening and closing the opening of the installation space in a state in which the toner supply device is loaded into the installation space.