Abstract: The image forming apparatus includes: an apparatus body including a drive source; a driven member detachably attachable to the apparatus body; a first transmission member in the apparatus body, including a base rotatable around a rotation axis, and transmitting drive force from the drive source to the driven member; and a second transmission member in the driven member, including a base rotatable around the rotation axis, and transmitting drive force from the first transmission member to the driven member. Any of the first and second transmission members includes a projection, and the other includes a receiving port. The receiving port receives the projection when a rotation angle between the first and second transmission members is an angle set in advance while not receiving the projection when the rotation angle is out of the angle, at the time of mounting the driven member on the apparatus body.

Abstract: The image forming apparatus includes: an apparatus body including a drive source; a driven member detachably attachable to the apparatus body; a first transmission member in the apparatus body, including a base rotatable around a rotation axis, and transmitting drive force from the drive source to the driven member; and a second transmission member in the driven member, including a base rotatable around the rotation axis, and transmitting drive force from the first transmission member to the driven member. Any of the first and second transmission members includes a projection, and the other includes a receiving port. The receiving port receives the projection when a rotation angle between the first and second transmission members is an angle set in advance while not receiving the projection when the rotation angle is out of the angle, at the time of mounting the driven member on the apparatus body.

Abstract: The image forming apparatus includes: an apparatus body including a drive source; a driven member detachably attachable to the apparatus body; a first transmission member in the apparatus body, including a base rotatable around a rotation axis, and transmitting drive force from the drive source to the driven member; and a second transmission member in the driven member, including a base rotatable around the rotation axis, and transmitting drive force from the first transmission member to the driven member. Any of the first and second transmission members includes a projection, and the other includes a receiving port. The receiving port receives the projection when a rotation angle between the first and second transmission members is an angle set in advance while not receiving the projection when the rotation angle is out of the angle, at the time of mounting the driven member on the apparatus body.

Abstract: The image forming apparatus is provided with: plural rotating members that are arranged rotatably; plural rotation side coupling members that are provided corresponding to the respective rotating members and transmit drive force to the respective rotating members; plural drive side coupling members that are connected to the respective rotation side coupling members and rotate and drive the respective rotating members via the rotation side coupling members; and an interconnecting unit that connects a predetermined number of the drive side coupling members among the plural drive side coupling members to the corresponding rotation side coupling members.

Abstract: When closing a front cover opened in a case where a fixing lever is placed in a fixing position, a guide plate portion formed on the front cover raises the fixing lever together with a support shaft. When a connection pin of the fixing lever enters a cam groove provided in the front cover, the fixing lever obtains a closed state in which the fixing lever is connected to the cam groove.

Abstract: An image forming apparatus is provided and includes: a rotating member; an engaging member to be removably engaged with the rotating member; a driving force transmitting member to be rotated and driven by a driving source; and a connecting portion that connects the engaging member to the driving force transmitting member so that the engaging member and the driving force transmitting member are movable in a misaligned direction and an axial direction. The connecting portion includes a connecting member, a pair of spherical members provided on respective ends of the connecting member, at least one of which is movable in the axial direction with respect to the engaging member and the driving force transmitting member, and a pair of fixing members that fix the pair of spherical members to the engaging member and the driving force transmitting member.

Abstract: An image forming apparatus includes: an apparatus body that includes an image forming unit forming an image; a switching mechanism that switches a state of members between a contacting state and a non-contacting state, the members related to image formation by the image forming unit in the apparatus body; a covering unit that is supported in the apparatus body so as to be freely opened and closed, and that covers a part of the apparatus body when being closed; and a connection unit that is provided to the covering unit, that is not connected to the switching mechanism when the covering unit is opened while being connected to the switching member when the covering unit is closed, and that causes the switching mechanism to operate in conjunction with an operation by an operator any one of to open and to close the covering unit.

Abstract: The image forming apparatus includes: an apparatus body including a drive source; a driven member detachably attachable to the apparatus body; a first transmission member in the apparatus body, including a base rotatable around a rotation axis, and transmitting drive force from the drive source to the driven member; and a second transmission member in the driven member, including a base rotatable around the rotation axis, and transmitting drive force from the first transmission member to the driven member. Any of the first and second transmission members includes a projection, and the other includes a receiving port. The receiving port receives the projection when a rotation angle between the first and second transmission members is an angle set in advance while not receiving the projection when the rotation angle is out of the angle, at the time of mounting the driven member on the apparatus body.

Abstract: The image forming apparatus is provided with: plural rotating members that are arranged rotatably; plural rotation side coupling members that are provided corresponding to the respective rotating members and transmit drive force to the respective rotating members; plural drive side coupling members that are connected to the respective rotation side coupling members and rotate and drive the respective rotating members via the rotation side coupling members; and an interconnecting unit that connects a predetermined number of the drive side coupling members among the plural drive side coupling members to the corresponding rotation side coupling members.