Image forming apparatus

A cartridge that is detachably mounted from a main body of an image forming apparatus, the cartridge comprising:

• a recording medium configured to contact a contact terminal provided at the main body of the image forming apparatus;
• and
• a concave portion that is configured to, when the recording medium and the contact terminal come in to contact, receive a protruding portion provided at the main body of the image forming apparatus, the concave portion protrudes further toward the cartridge than the contact terminal, and is formed toward an inside of the cartridge from a surface of the cartridge on which the recording medium is provided,
• wherein, during insertion of the cartridge, the recording medium slidably contacts the contact terminal in a parallel direction with respect to a sidewall of the main body of the image forming apparatus.

A container that is detachably mounted from a main body of an image forming apparatus, the container comprising:

• a recording medium that is configured to contact a contact terminal provided at the main body of the image forming apparatus;
• and
• a concave portion that is configured to, when the recording medium and the contact terminal come in to contact, receive a protruding portion provided at the main body of the image forming apparatus, the concave portion protrudes further toward the container than the contact terminal, and is formed toward an inside of the container from a surface of the container on which the recording medium is provided,
• wherein, during insertion of the container, the recording medium slidably contacts the contact terminal in a parallel direction with respect to a sidewall of the main body of the image forming apparatus.

An image forming apparatus in which a cartridge is detachably mounted from a main body of the image forming apparatus, the image forming apparatus comprising:

• a contact terminal provided at the main body of the apparatus, the contact terminal includes a first portion and a second portion, wherein
• the first portion contacts a recording medium of the cartridge, and
• the second portion includes a protruding portion such that the protruding portion extends into a concave portion provided in the cartridge,
• wherein the protruding portion of the contact terminal elastically swings toward a wall of the main body when a pressing force is applied and elastically swings toward the concave portion of the cartridge when the pressing force is released.