JP2658045B2 - Image input / output device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an image input / output device such as a facsimile.

2. Description of the Related Art As shown in FIG. 3, a conventional image input / output device includes a document conveying roller 12 for conveying an image input document 11 and an image output sheet 13.
And paper transport rollers 14 for transporting
The image input sensor 15 and the image output head 16 are configured to be brought into pressure contact with the document transport roller 12 and the paper transport roller 14, respectively. In addition, each of the two transport rollers 12, 14 is driven by a motor and a control system associated therewith.

Problems to be Solved by the Invention However, the conventional configuration as described above has a document transport roller 12 for transporting the image input document 11 at the time of image input and a paper transport roller 14 for transporting the image output paper 13 at the time of image output. However, there are also two systems of motors and control systems associated with the driving thereof, and the ratio of the transport mechanism to the image input / output device is large, and it is difficult to reduce the size and weight of the image input / output device. .

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a small and lightweight image input / output device by reducing the number of parts, simplifying a transport mechanism, and reducing the size. is there.

Means for Solving the Problems An image input / output device according to the present invention includes an image input sensor and an image output head which are arranged so as to be able to freely move toward and away from a single transport roller, and the image input sensor and the image output head can be arranged in one of the image input sensors and the image output head. A first state in which one of the two contacts the transport roller, a second state in which both the image input sensor and the image output head simultaneously contact the transport roller, and both the image input sensor and the image output head simultaneously. A contact / separation switching mechanism for switching between a third state separated from the transport roller;

Operation With this configuration, either one of the image input sensor and the image output head can be brought into contact with the transport roller, and both the image input sensor and the image output head can be brought into contact with the transport roller at the same time, or both. At the same time, it can be isolated from the transport rollers.

Embodiment An embodiment of the present invention will be described below with reference to FIG. 1 and FIG.

In the image input / output device of the present embodiment, an image input sensor 2 and an image output head 3 are arranged above and below a single transport roller 1. The image input sensor 2 and the image output head 3
Each is attached to the main body 4 so as to be rotatable about fulcrums P and Q, but is urged toward the transport roller 1 by an elastic body such as a spring.

A cam 6 that rotates coaxially with the shaft 5 that supports the transport roller 1 independently of the rotation of the transport roller 1 is provided. Cam 6
Has a disk shape having a diameter larger than the diameter of the transport roller 1, and has a substantially arc-shaped and smooth recess 6a, 6
The recesses 6a and 6b are located at positions that are symmetrical about the center of the cam 6 with respect to each other.
6c is the position of the midpoint of the arc connecting the depressions 6a and 6b.

On the other hand, the image input sensor 2 and the image output head 3 each have a radius smaller than the radius of curvature of the substantially arc-shaped recess formed in the cam 6, and
8 is provided at a point-symmetric position with respect to the axis 5. Therefore, when the pins 7 and 8 come into contact with the outer periphery of the cam 6, the image input sensor 2 and the image output head 3 are separated from the transport roller 1, and when the pins 7 and 8 come to the concave positions of the cam 6, the image input sensor 2 2 and the image output head 3 come into contact with the transport roller 1.

In the above configuration, the cam 6 is set to the position shown in FIG. 2A by an actuator (not shown) at the time of image input, so that the pin 7 of the image input sensor 2 is located at the position of the recess 6c of the cam 6. Therefore, the image input sensor 2 comes into contact with the transport roller 1 because it does not come into contact with the cam 6. Further, since the pins 8 of the image output head 3 are in contact with the outer periphery of the cam 6, the image output head 3 is separated from the transport roller 1. Therefore, only the image input document 9 is conveyed by the rotation of the conveyance roller 1 in the direction of the arrow, and image input can be performed.

Similarly, at the time of image output, the cam 6 is set to the position shown in FIG.
Since the pin 7 of the image input sensor 2 is in contact with the outer periphery of the cam 6 at the position 6c, only the image output head 3 is in contact with the conveyance roller 1 and only the image output circular paper 10 is conveyed, and the image can be output. .

Further, at the time of simultaneous image input / output, the cam 6 is set at the position shown in FIG. 2C, and the pin 7 of the image input sensor 2 and the pin 8 of the image output head 3 are at the positions of the recesses 6a and 6b of the cam 6, respectively. Since both the image input sensor 2 and the image output head 3 are in contact with the conveyance rollers, the image input document 9 and the image output paper 10 are simultaneously conveyed, so that image input and image output can be performed.

In this embodiment, the image input sensor and the image output head are brought into contact with and separated from the transport rollers by a cam mechanism as transport switching means for the image input document and the image output sheet. The input sensor and the image output head may be moved toward and away from the transport roller, and the present invention is not limited to the configuration of the above embodiment.

As is clear from the above description of the embodiment, the image input / output device of the present invention has an image input sensor and an image output head which are arranged so as to be able to freely move toward and away from one conveying roller. A first state in which one of the image output heads is in contact with the transport roller, a second state in which both the image input sensor and the image output head are simultaneously in contact with the transport roller, and an image input sensor and an image. With a configuration including a contact / separation switching mechanism that switches between a third state in which both output heads are simultaneously separated from the transport roller,
Either the image input sensor or the image output head can be in contact with the transport roller, and both the image input sensor and the image output head can be in contact with the transport roller at the same time, or both are simultaneously isolated from the transport roller. Depending on the state of use of the apparatus, either one or both of the image input document and the image output paper can be conveyed, so that the conveyance efficiency can be improved and the mechanism accompanying the reduction in the number of parts can be achieved. Simplification and equipment miniaturization,
Further, the cost of the apparatus can be reduced. In addition, since the ratio of the transport mechanism to the entire image input / output device is smaller than in the related art, the size and weight of the image input / output device can be easily reduced.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an image input / output apparatus according to an embodiment of the present invention, FIG. 2 is a view showing an operation state of the essential parts, A is a side view at the time of image input, and B is at the time of image output. FIG. 3 is a side view at the time of simultaneous image input / output, and FIG. 3 is a side sectional view of a conventional image input / output device. DESCRIPTION OF SYMBOLS 1 ... Conveyance roller, 2 ... Image input sensor, 3 ... Image output head, 4 ... Body, 5 ... Shaft, 6 ... Cam, 7, 8
...... Pin, 9 ... Image input document, 10 ... Image output paper.

Claims (2)

(57) [Claims] An image input sensor and an image output head;
A first state in which one of the image input sensor and the image output head is disposed so as to be able to contact and separate from one of the transport rollers, and one of the image input sensor and the image output head is in contact with the transport roller; A contact / separation switching mechanism for switching between a second state in which both of the heads are simultaneously in contact with the conveyance roller and a third state in which both the image input sensor and the image output head are simultaneously separated from the conveyance roller; An image input / output device comprising: 2. The contact / separation switching mechanism is provided on a disc-shaped cam provided coaxially with the transport roller and independently of the transport roller, and on the image input sensor and the image output head. A pin that contacts the outer periphery of the cam, and an actuator that controls the rotation of the cam. The pin is received on the outer periphery of the cam, and the first state, the second state, and the third state are received. 2. The image input / output device according to claim 1, wherein a plurality of recesses for switching between the state and the state are formed.