Electrical connecting mechanism, image forming apparatus and optional device

1. An electrical connecting mechanism, comprising:

a first electric connector disposed at an apparatus main body;

a second electric connector disposed at an optional device;

a positioning pin disposed in one of the apparatus main body and the optional device and a positioning hole disposed in the other one thereof;

a power feed switch disposed at a side of the apparatus main body opposing the optional device and capable of switching between a connected state and an unconnected state; and

an operation element disposed at the optional device, and configured to cause the power feed switch to be in the connected state such that power is supplied from the apparatus main body to the optional device, when the first connector and the second connector are electrically coupled to each other through the positioning pin and the positioning hole to guide the optional device to be mounted to the apparatus main body,

wherein the second connector is disposed at a side of the optional device opposing the apparatus main body and attached reciprocally movable with respect to the optional device, the second connector moving towards the side of the apparatus main body when mounting the optional device to the apparatus main body, and

wherein the operation element is attached reciprocally movable with respect to the optional device in unison with movement of the second connector.

2. The electrical connecting mechanism according to claim 1 ,

wherein the operation element further moves by a predetermined distance after the first connector and the second connector are coupled, when the optional device is mounted to the apparatus main body, and

makes the power feed switch enter the connected state.

3. The electrical connecting mechanism according to claim 2 ,

wherein the operation element makes the power feed switch enter the connected state and maintains the state in which power can be supplied, in a state in which the optional device has been mounted to the apparatus main body, and

in a case of the optional device being removed from the apparatus main body, makes the power feed switch enter the unconnected state, in a state in which the first connector and the second connector are coupled, and causes a state in which power cannot be supplied from the apparatus main body to the optional device to be entered from the state in which power can be supplied.

4. The electrical connecting mechanism according to claim 1 , further comprising a slider member configured to be attached reciprocally movable with respect to the optional device and to move toward a side of the apparatus main body when mounting the optional device to the apparatus main body,

wherein the second connector and the operation element are disposed at the slider member.

5. An image forming apparatus, comprising:

an image forming apparatus main body;

an option device detachably mounted to the image forming apparatus main body; and

an electrical connecting mechanism including:

a first connector disposed at the image forming apparatus main body,

a second connector disposed at the optional device,

a positioning pin disposed in one of the image forming apparatus main body and the optional device and a positioning hole disposed in the other one thereof;

a power feed switch disposed at a side of the image forming apparatus main body opposing the optional device and capable of switching between a connected state and an unconnected state,

an operation element that is disposed at the optional device, and

a slider member, at which the second connector and the operation element are disposed, configured to move toward a side of the image forming apparatus main body when mounting the optional device to the image forming apparatus main body,

wherein the second connector is disposed at a side of the optional device opposing the image forming apparatus main body and moves toward the side of the image forming apparatus main body when mounting the optional device to the image forming apparatus main body, and

wherein the operation element is configured to move toward a side of the power feed switch accompanying movement of the second connector so as to cause the power feed switch to be in the connected state such that power is supplied from the image forming apparatus main body to the optional device, when the first connector and the second connector are electrically coupled to each other through the positioning pin and the positioning hole to guide the optional device to be mounted to the image forming apparatus main body.

6. The image forming apparatus according to claim 5 ,

wherein the operation element further moves by a predetermined distance after the first connector and the second connector are coupled, when the optional device is mounted to the image forming apparatus main body, and

makes the power feed switch enter the connected state.

7. The image forming apparatus according to claim 6 ,

wherein the operation element makes the power feed switch enter the connected state and maintains the state in which power can be supplied, in a state in which the optional device has been mounted to the image forming apparatus main body, and

in a case of the optional device being removed from the image forming apparatus main body, makes the power feed switch enter the unconnected state, in a state in which the first connector and the second connector are coupled, and causes a state in which power cannot be supplied from the image forming apparatus main body to the optional device to be entered from the state in which power can be supplied.

8. An optional device equipped to an imaging forming apparatus main body having a first connector and a power feed switch capable of switching between a connected state and an unconnected state, the power feed switch being disposed at a side of the image forming apparatus main body opposing the optional device, the optional device comprising:

a second connector;

an operation element; and

a slider member, at which the second connector and the operation element are disposed, configured to move toward the side of the image forming apparatus main body when mounting the optional device to the image forming apparatus main body,

wherein the second connector is disposed at a side opposing the image forming apparatus main body and moves toward the side of the image forming apparatus main body when mounting the optional device to the image forming apparatus main body,

wherein the operation element is configured to move toward a side of the power feed switch accompanying movement of the second connector so as to cause the power feed switch to be in the connected state such that power is supplied from the image forming apparatus main body to the optional device, when the first connector and the second connector are coupled to each other through a positioning pin disposed in one of the image forming apparatus main body and the optional device and a positioning hole disposed in the other one thereof to guide the optional device to be mounted to the image forming apparatus main body.

9. The optional device according to claim 8 ,

wherein the operation element further moves by a predetermined distance after the first connector and the second connector are coupled, when the optional device is mounted to the image forming apparatus main body, and

makes the power feed switch enter the connected state.

10. The optional device according to claim 9 ,

wherein the operation element makes the power feed switch enter the connected state and maintains the state in which power can be supplied, in a state in which the optional device has been mounted to the image forming apparatus main body, and

in a case of coupling between the optional device and the image forming apparatus main body being released, releases the connected state of the power feed switch in a state in which the first connector and the second connector are coupled, and causes a state in which power cannot be supplied from the image forming apparatus main body to the optional device to be entered from the state in which power can be supplied.

11. An optional device equipped to an imaging forming apparatus main body having a first connector and a power feed switch capable of switching between a connected state and an unconnected state, the power feed switch being disposed at a side of the image forming apparatus main body opposing the optional device, the optional device comprising:

a second connector; and

an operation element,

wherein the second connector is disposed at a side opposing the image forming apparatus main body and moves toward the side of the image forming apparatus main body when mounting the optional device to the image forming apparatus main body,

wherein the operation element is configured to move toward a side of the power feed switch accompanying movement of the second connector so as to cause the power feed switch to be in the connected state such that power is supplied from the image forming apparatus main body to the optional device, when the first connector and the second connector are coupled to each other,

wherein a positioner for regulating a mounting position of the optional device is provided to the image forming apparatus main body,

wherein an engager for engaging the positioning means when mounting to the image forming apparatus main body is provided in the optional device, and

wherein the second connector is disposed so as to move toward the image forming apparatus main body after the engager engages the positioner.