Image forming apparatus

An image forming apparatus comprising:

• a photosensitive member;
• a rotary configured to rotate, the rotary including
• a storage frame provided with a toner storage portion in which toner is stored and an inlet opening communicating with the toner storage portion,
• a developing roller configured to rotate and supply toner to the photosensitive member,
• a supply roller configured to rotate and supply the toner stored in the toner storage portion to the developing roller, and
• a guide member disposed in the toner storage portion and configured to guide the toner supplied to the toner storage portion through the inlet opening;
• and
• a toner cartridge that is configured to store the toner therein, that is attachable to and detachable from the rotary, and that is provided with a discharge opening configured to communicate with the inlet opening,
• wherein the toner discharged from the discharge opening is supplied to the toner storage portion through the inlet opening,
• wherein the supply roller includes a foam layer formed from a foam material and forming an outer peripheral surface of the supply roller, and is disposed such that the foam layer elastically deforms at a contact portion between the supply roller and the developing roller,
• wherein the rotary is configured to take a replacement posture in which attachment and detachment of the toner cartridge to and from the rotary are allowed, and a developing posture in which the developing roller is allowed to supply the toner to the photosensitive member, and
• wherein the guide member includes a supported portion supported by the storage frame and an edge positioned inside the inlet opening as viewed in a vertical direction in a state in which the rotary is in the developing posture, and
• wherein, in a case where a region that is surrounded by an outer peripheral surface of the developing roller, the outer peripheral surface of the supply roller, and a common tangent between the outer peripheral surface of the developing roller and the outer peripheral surface of the supply roller and that is positioned downstream of the contact portion in a rotational direction of the supply roller is defined as a downstream region, in the state in which the rotary is in the developing posture, the downstream region is positioned below the edge of the guide member and overlaps with the edge of the guide member, as viewed in the vertical direction.