Image forming apparatus having cartridge detachably mounted therein

摘要

In an image forming apparatus, a sensing body is disposed at a first position when a cartridge has been removed from an apparatus body, is disposed at a second position when a first part of the sensing body contacts a housing of the cartridge that has been mounted in the apparatus body, and is disposed at a third position when a second part of the sensing body contacts a movable member of the cartridge that has been mounted in the apparatus body. A judging unit determines that the cartridge has been removed from the apparatus body if the sensing body is at the first position, determines that the cartridge has been mounted in the apparatus body if the sensing body is at the second position, and determines that the cartridge is a new product if the sensing body is at the third position.

主权项

1. An image forming apparatus comprising:
an apparatus body; and a cartridge configured to be mounted in and removed from the apparatus body, the cartridge including:
a housing; anda movable member configured to move relative to the housing upon receipt of input of a drive force from the apparatus body, the apparatus body including:
a sensing body having a first part configured to contact the housing and having a second part configured to contact the movable member; anda judging unit configured to judge whether the cartridge is a new product or a used product, the movable member having a contact part configured to contact the second part of the sensing body, the sensing body being configured to move among first, second and third positions, the sensing body being configured to be disposed at the first position when the cartridge has been removed from the apparatus body, disposed at the second position when the first part of the sensing body contacts the housing of the cartridge that has been mounted in the apparatus body, and disposed at the third position when the second part of the sensing body contacts the movable member of the cartridge that has been mounted in the apparatus body, and the judging unit is configured to determine that the cartridge has been removed from the apparatus body if the sensing body is at the first position, to determine that the cartridge has been mounted in the apparatus body if the sensing body is at the second position, and to determine that the cartridge is a new product if the sensing body is at the third position.