JP2001084358A - Image both-side reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To read image information on both sides of a slip by one image sensor by making the image sensor rotatable. SOLUTION: This reader is provided with plural reflection mirrors 5, 6 and 7 arranged so as to read the image information on the lower surface of the slip 1 including a first reflection mirror 5 arranged above a slip traveling path 2 and the rotatably constituted image sensor 8 for reading the image information of the slip 1 traveling on the slip traveling path 2. At the time of reading the image information on the upper surface of the slip, it is read by the image sensor 8 while making the slip 1 travel. At the time of reading the image information on the lower surface of the slip, the image sensor 8 is rotated in the direction of the first reflection mirror 5 and it is read by the image sensor 8 while making the slip 1 travel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for optically reading image information recorded on both sides of a form.

[0002]

2. Description of the Related Art Heretofore, in the case of a form such as a check, which requires image reading on both sides, an image sensor is provided above and below the form to read images on both sides.

[0003]

However, since two image sensors are installed to read both sides of a form, there is a problem that the cost is increased.

[0004]

In order to solve the above-mentioned problems, the present invention includes a plurality of first reflecting mirrors arranged above a form travel path, the plurality of mirrors being arranged to read image information on the lower surface of the form. And a rotatable image sensor that reads the image information of a form running on a form travel path.When reading the image information on the top of the form, the image sensor reads the form information while running the form. When reading the image information on the lower surface, the image sensor is rotated in the direction of the first reflecting mirror to read the image information while running the form.

A form is placed on a form table made of a transparent material, and instead of running the form, a rotatable image sensor, a light source for irradiating the lower surface of the form, and a form are formed while running a reflecting mirror. The image information is read.

[0006]

FIG. 1 is a view showing a first embodiment of the present invention, in which image information on the upper surface (front surface) of a form is read.

As an image double-sided reading device, a form travel path 2 on which a form 1 is inserted and travels, a light source 3 for irradiating the upper surface of the form 1, a light source 4 for irradiating the lower surface of the form 1, A first reflector 5 arranged above, reflectors 6 and 7 arranged to read image information on the lower surface of the form 1, and a form 1 rotatably configured to travel on the form travel path 2. And an image sensor 8 such as a CCD for reading the image information of the camera.

The light sources 3 and 4 are connected to switch circuits 31 and 41 for turning on and off. The image sensor 8 is provided with a shaft 9, and a motor (not shown) is connected to the shaft 9, and the image sensor 8 is configured to be able to rotate 90 ° in the direction of the arrow by the driving force of the motor. In addition,
The detection sensor 10 is a sensor that detects the edge of the form 1.

When reading the image information on the upper surface of the form 1, the form 1 is inserted, and is inserted on the form traveling path 2 in the insertion direction.
That is, the image sensor 8 reads the image information of the upper surface illuminated by the light source 3 while traveling in the depth direction of the apparatus indicated by the arrow in the figure.

FIG. 2 is a diagram showing the first embodiment when image information on the lower surface (back surface) of a form is read.

When the reading of the image on the upper surface of the form 1 is completed, the completion of reading is detected by, for example, detecting that the form 1 has passed through the detection sensor 10, and a completion signal is sent to the switch circuits 31, 41. The light source 3 is turned off and the light source 4 is turned on.

The above-described read completion signal is transmitted to the image sensor 8.
The control circuit rotates the motor connected to the shaft 9 to rotate the image sensor 8 by 90 ° so as to direct the image sensor 8 in the direction of the first reflecting mirror 5 described above.

The form 1 travels in the discharge direction as indicated by the arrow in the figure by reversing a transport mechanism (not shown), for example, a roller. The lower surface of the running form 1 is irradiated from the light source 4, and image information on the lower surface is read by the image sensor 8 via the reflecting mirrors 7 and 6 and the first reflecting mirror 5.

It is to be noted that, without running the form 1 in the discharge direction,
Image information can be read in the insertion direction, but in that case, the device becomes large.

When the reading of the lower surface of the form 1 is completed, the reading sensor 10 detects the reading completion signal and sends a reading completion signal to the switch circuits 31 and 41 and the control circuit of the image sensor 8 in the same manner as described above. 3 is turned on, and the image sensor 8 is rotated by 90 ° to bring it to the state shown in FIG. 1 in preparation for reading the image of the next document.

As described above, according to the first embodiment,
By configuring the image sensor 8 to be rotatable,
One image sensor 8 can read the image information on both sides of the form 1.

FIG. 3 is a view showing a second embodiment of the present invention, in which image information on the upper surface of a form is read.

As a double-sided image reading apparatus, a form 11
Form table 1 made of a transparent material such as glass
2, a first light source 13 that irradiates the upper surface of the form 11, a second light source 14 that is configured to be able to travel and irradiates the lower surface of the form 11, and a first reflection disposed above the form table 12. A mirror 15, a second reflecting mirror 17, which is configured to run adjacent to the second light source 14, and a reflecting mirror 16 arranged so as to read image information on the lower surface of the form 11 together therewith;
The image sensor 18 is configured to be runnable and rotatable, and reads image information of the form 11 placed on the form table 12. The housing 20 supports the form table 12.

The first light source 13 is connected to a switch circuit 31 for turning on and off, and the second light source 14 is connected to a switch circuit 41 for turning on and off. The image sensor 18 is provided with a shaft 19, and a motor (not shown) is connected to the shaft 19, and the image sensor 18 is configured to be able to rotate 90 ° by the driving force of the motor.

The first light source 13 and the image sensor 18
Are configured to be able to travel together in the direction of the arrow in the figure, and the second light source 14 and the second reflecting mirror 17 are also configured to be able to travel together.

When reading the image information on the upper surface of the form 11, the form 11 is placed on the form table 12 and the first light source 13
The image information of the upper surface of the form 11 illuminated by the image sensor 18 is read together with the first light source 13 while the image sensor 18 travels in the direction of the arrow.

FIG. 4 is a diagram showing a second embodiment when image information on the lower surface of a form is read.

When the reading of the image on the upper surface of the form 11 is completed, for example, the end of movement of the image sensor 18 is detected by a sensor (not shown), and a reading completion signal is sent to the switch circuits 31 and 41, and the first light source 13 is turned off and the second light source 14 is turned on.

The read completion signal is transmitted to the image sensor 1
8, the motor connected to the shaft 19 is rotated by the control, and the image sensor 18 is rotated by 90 ° as shown in FIG. .

The lower surface of the form 11 is illuminated from the second light source 14 through the transparent form table 12, and the image information of the lower surface is passed through the second reflecting mirror 17, the reflecting mirror 16, the first reflecting mirror 15, and the image sensor 18 Read by

At this time, the second light source 14 and the second reflecting mirror 1
7 travels in the direction in which the image sensor 18 travels and in the reflection direction.

It has been described that the image sensor 18 is rotated at the position where reading of the upper surface of the form 11 is completed to read the image of the lower surface. However, the image sensor 18 is rotated after returning to the reading start position of the upper surface. May be.

When the reading of the lower surface of the form 11 is completed,
A read completion signal is sent to the switch circuits 31, 41 and the control circuit of the image sensor 18 to turn off the second light source 14,
The first light source 13 is turned on, the image sensor 18 is rotated by 90 ° to return to the reading start position, and the second light source 14 and the second reflecting mirror 17 are also returned to the reading start position to read the image of the next document. Prepare.

As described above, according to the second embodiment, the same effects as those of the first embodiment can be obtained.

[0030]

As described above, according to the present invention, since the image sensor is configured to be rotatable, image information on both sides of the form can be read by one image sensor.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a first embodiment for reading a lower surface of a form;

FIG. 3 is a diagram showing a second embodiment of the present invention.

FIG. 4 is a diagram showing a second embodiment for reading the lower surface of a form;

[Description of Signs] 1,11 Form 2 Running path 3,4 Light source 5,15 First reflecting mirror 6,7,16 Reflecting mirror 8,18 Image sensor 12 Form table 13 First light source 14 Second light source 17 Second reflector

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 5B047 AA01 BA01 BA07 BC09 CA09 CA17 CB18 5C072 AA01 BA20 CA02 DA04 EA05 FA05 LA02 MA01 NA01 WA02

Claims (4)

[Claims] An image reading apparatus for optically reading image information recorded on a form, a form traveling path on which the form travels, a light source for irradiating an upper surface of the form, a light source for irradiating a lower surface of the form, A plurality of reflectors including a first reflector disposed above the form travel path and arranged to read image information on a lower surface of the form; a form configured to be rotatable and traveling on the form travel path; An image sensor for reading the image information of the form, when reading the image information on the upper surface of the form, reading it with the image sensor while running the form, and when reading the image information on the lower surface of the form, the image sensor is connected to the first image sensor. An image double-sided reading device, wherein the document is read by the image sensor while rotating in the direction of a reflecting mirror and running a form. 2. When reading the image information on the upper surface of the form, the image sensor reads the image information while moving the form in the insertion direction. When reading the image information on the lower surface of the form, the image sensor is connected to the first reflecting mirror. 2. The double-sided image reading device according to claim 1, wherein the document is read by the image sensor while rotating the document in the direction and moving the form in the discharge direction. 3. An image reading apparatus for optically reading image information recorded on a form, comprising: a form table made of a transparent material on which the form is placed; a first light source for irradiating the top surface of the form; A second light source configured to irradiate the lower surface of the form, a first reflector disposed above the form table, and a second light source configured to be adjacent to the second light source and configured to be movable. And a plurality of reflectors arranged to read the image information on the lower surface of the form, and read and read the image information of the form placed on the form table, which is runnable and rotatable. An image sensor is provided. When reading the image information on the upper surface of the form, the image information is read while the first light source and the image sensor are running together, and when reading the image information on the lower surface of the form, the image information is read. The sensor is rotated in the direction of the first reflector, the second
An image reading device, wherein the light source and the second reflecting mirror are both read and read by the image sensor. 4. When reading the image information on the lower surface of the form, the image sensor is rotated in the direction of the first reflecting mirror, and when reading the image information on the upper surface of the form, the direction opposite to the direction in which the image sensor is run is read. 4. The double-sided image reading device according to claim 3, wherein the reading is performed by the image sensor while the second light source and the second reflecting mirror travel in the direction.