Image forming apparatus having an openable member

1. An image forming apparatus comprising:

an image forming apparatus body;

an openable member that is supported movably between an opening position where the openable member is opened to reveal an inside of the image forming apparatus body and a closing position where the openable member is closed to hide the inside of the image forming apparatus body;

a positioning portion that is provided in the image forming apparatus body;

a positioned portion that is supported on the openable member and that is brought into contact with the positioning portion to be positioned when the openable member is in the closing position;

a rotary member that is supported on the image forming apparatus body; and

an opposed member that is supported on the openable member,

wherein, when the openable member moves to the closing position, the opposed member moves in a moving direction crossing an opening/closing direction of the openable member, and

the opposed member is opposed to the rotary member rotatably when the openable member is in the closing position,

a first urging member that is supported by the openable member; and

a movable piece that supports the positioned portion and the opposed member and that is supported movably relatively to the openable member,

wherein the first urging member urges the opposed member toward an image retainer when the openable member is in the closing position, and

wherein the first urging member urges the movable piece in a direction moving away from a pivot axis of the openable member.

2. The image forming apparatus according to claim 1 , wherein

the rotary member includes the image retainer which retains an image on a surface thereof, and

the opposed member includes a transfer member which comes in contact with the image retainer to rotate and transfer the image on the surface of the image retainer to a medium.

3. The image forming apparatus according to claim 2 , further comprising:

a second urging member that urges the opposed member toward the image retainer,

wherein the positioned portion includes an urging support which supports the opposed member movably to touch and leave the rotary member and which supports the urging member.

4. The image forming apparatus according to claim 1 , wherein

the positioned portion includes a rotary shaft of the opposed member.

5. The image forming apparatus according to claim 4 , wherein

the positioning portion positions the positioned portion by contact with the positioned portion on an opposite side to the rotary member with respect to the opposed member in a direction where the rotary member and the opposed member are opposed to each other.

6. The image forming apparatus according to claim 1 , wherein

the positioning portion is provided on a frame which supports the rotary member.

7. The image forming apparatus according to claim 1 , further comprising:

an opening/closing fixing portion that is provided in the image forming apparatus body;

a fixed portion that is provided in the openable member and that is configured to touch and leave the opening/closing fixing portion;

an operating position that is provided in the openable member and that is configured to be operated by an operator between a releasable position where the operating portion can release the fixed portion and the opening/closing fixing portion from contact with each other and a contactable position where the operating portion can bring the fixed portion and the opening/closing fixing portion into contact with each other,

wherein the movable piece moves between a positioning position and a leaving position in connection with the operating portion moving between the contactable position and the releasable position,

the positioned portion is brought into contact with the positioning portion to be positioned when the movable piece moves to the positioning position, and

the positioned portion leaves the positioning portion when the movable piece moves to the leaving position.