Assembly removable structure and image forming apparatus

1. An assembly removable structure, comprising:

an assembly that includes a connectable member and that is attached to and removed from a receiving member of an apparatus body in a first direction;

a connection member disposed on the apparatus body to be movable forward and backward in a cross direction that crosses the first direction, the connection member being connected to the connectable member while being in a projecting state;

a switch member that is operated independently of a lid member and that is capable of switching the connection member between a first position, in which the connection member is connected to the connectable member, and a second position, in which the connection member is removed from the connectable member, the lid member rendering the receiving member open and closed; and

a holding device that holds the switch member in the second position when the assembly is removed from the receiving member.

2. The assembly removable structure according to claim 1 , wherein the holding device holds the switch member in the second position with an operation of removing the assembly from the receiving member.

3. The assembly removable structure according to claim 2 , wherein the holding device includes

a body member disposed on the apparatus body, and

a hook member connected to the switch member to be rotatable about an axis extending in the cross direction, the hook member including a hook portion, hooked on the body member, and a release portion, which releases the hooked hook portion by rotating with a contact with the assembly.

4. The assembly removable structure according to claim 3 , wherein the holding device includes a pressing member that presses the hook member for the hook portion to rotate in a direction in which the hook portion is hooked on the body member.

5. The assembly removable structure according to claim 3 , wherein the body member also serves as a guide member that guides the switch member in the first direction.

6. The assembly removable structure according to claim 1 , wherein the holding device releases the held switch member with an operation of attaching the assembly to the receiving member.

7. The assembly removable structure according to claim 1 ,

wherein the switch member is switched in position in the first direction, and

wherein the first position is closer to a rear side of the apparatus body than the second position.

8. An image forming apparatus that forms an image on a recording medium, the image forming apparatus comprising the assembly removable structure according to claim 1 ,

wherein each of the connection member and the connectable member is rotatable about an axis extending in the cross direction,

wherein the apparatus body includes a driver that drives the connection member to rotate, and

wherein the assembly includes a rotator that rotates with a rotational force transmitted from the driver via the connection member and the connectable member.

9. An assembly removable structure, comprising:

an assembly that includes a connectable member and that is attached to and removed from a receiving member of an apparatus body in a first direction;

a connection member disposed on the apparatus body to be movable forward and backward in a cross direction that crosses the first direction, the connection member being connected to the connectable member while being in a projecting state;

a switch member that is operated independently of a lid member and that is capable of switching the connection member between a first position, in which the connection member is connected to the connectable member, and a second position, in which the connection member is removed from the connectable member, the lid member rendering the receiving member open and closed; and

a restricting device that restricts an attachment of the assembly to the receiving member when the assembly is removed from the receiving member and the switch member is in the first position.

10. The assembly removable structure according to claim 9 , wherein the restricting device restricts an attachment of the assembly to the receiving member with an operation of placing the switch member in the first position.

11. The assembly removable structure according to claim 10 ,

wherein the restricting device includes

a body member disposed on the apparatus body, and

a coupling member coupled to the switch member to be rotatable about an axis extending in the cross direction, the coupling member including an arm extending in the first direction, a recess formed in the arm at a portion closer to the body member, and a protrusion disposed on the arm at a portion opposite to the portion closer to the body member,

wherein, when the switch member is switched to the first position, the body member comes into contact with a portion of the arm other than the recess and the protrusion restricts the assembly from moving in the first direction, and

wherein, when the switch member is switched to the second position, the body member comes into contact with the recess to allow the assembly to move in the first direction.

12. The assembly removable structure according to claim 9 , wherein the restricting device releases the attachment with an operation of placing the switch member in the second position.