Toner container and image forming apparatus

An image forming apparatus having a toner container that is attached thereto and includes a first IC tag, the image forming apparatus comprising:

• a container-attaching part and a reader;
• and
• a second IC tag being different from the first IC tag, wherein
• the toner container is attachably and detachably formed at the container-attaching part of the image forming apparatus,
• the first IC tag is arranged on a circumferential surface of the toner container,
• the first IC tag makes communication with the reader arranged at the container-attaching part when the toner container is attached to the container-attaching part,
• the first IC tag cannot make communication with the reader when a distance between the first IC tag and the reader is less than a threshold distance,
• when the first IC tag is arranged at a position opposite to the reader, the distance between the first IC tag and the reader is shorter than the threshold distance,
• the first IC tag is arranged at a position separate from the position opposite to the reader,
• the reader includes an antenna in a rectangular spiral shape with substantially rectangular outer circumference,
• the first IC tag is arranged at a position separate from the position opposite to the reader in a direction along a long side of the antenna,
• the first IC tag can make communication with the reader within a range of a first communicable distance from a position of the reader,
• the first IC tag is located at a longer distance from the position opposite to the reader, as the first communicable distance increases,
• the second IC tag is arranged on the circumferential surface of the toner container,
• the second IC tag can make communication with the reader within a range of a second communicable distance,
• a longest distance of the second communicable distance is shorter than a longest distance of the first communicable distance, and a shortest distance of the second communicable distance is shorter than a shortest distance of the first communicable distance, and
• a distance between the reader and the circumferential surface of the toner container is set based on the range of the second communicable distance.