JPH1198318A - Picture reading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a picture reading device with excellent quality in which stable color reference can be obtained, and normal picture reading can be attained for a long period. SOLUTION: A reference plate 16a as a guide member is composed of a plate metal so that a reading plane part 161 can be ensured, and adhered to the reading face of a contact sensor 15. A white Mylar (R) 16b being a color reference sheet is adhered along the reference plate 16a with a both face tape 16d, and a white ink application 16c constituting a transparency preventing means is operated to the back face side of the original passing paper face of the white Mylar (R) 16b.

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 having a function of reading an image on a document sheet.

[0002]

2. Description of the Related Art Conventionally, with the development of information processing systems, various information processing devices have been developed.

Among these devices, information processing devices such as facsimile devices as image reading devices (document reading devices) having an image reading function are widely used not only in offices but also in ordinary households.

A reading unit used in these information processing apparatuses includes a reduction optical system for reducing an original image and guiding the original image to a photoelectric conversion element such as a CCD, and a CCD which brings the original image closer to the original and converts the original image into a CCD.
And a 1: 1 optical system that guides the image at the same magnification.

[0005] An example of an image reading apparatus using an equal-magnification optical system according to the prior art will be described with reference to FIG.

FIG. 8 is a schematic configuration diagram of an image reading apparatus according to the prior art.

The image reading apparatus generally includes an electric board (control board 201, main power supply 202), a reading mechanism 203, an operation section 204, and the like.

The reading mechanism 203 includes a document tray 205 for setting and stacking the documents 211, an upper document guide 206 for guiding the document conveying path, a lower document guide 207, a document separating unit 208 for sequentially feeding a plurality of documents, A contact sensor 209 using a photoelectric conversion element, and a reading reference plate 210 serving as a background color (background color) of a document are provided on an upper surface facing the contact sensor 209.

Next, the conveyance path of the document 211 will be described.

First, a document sandwiched between the document separating roller 212 and the preliminary conveying leaf spring 213 is
The sheets are conveyed one by one.

The original 211 is fed to the feeding roller 215.
Then, the sheet passes between the contact sensor 209 and the reading reference plate 210 by the counter roller 216 and is discharged by the sheet discharge roller 217 and the counter roller 218 in the direction of the arrow in FIG.

Next, the reading reference plate 210 will be described.

The surface of the reading reference plate 210 that comes into contact with the reading surface serves as a color reference for performing color correction when reading an image, and is configured to be white in accordance with the background color (background color) of the document sheet. There is a case where the image is composed of black, instead of the background color of the document sheet. In the following description, a case where the image is composed of white is described.

To construct the reading reference plate 210, a white film is attached to a flat metal plate or the like with a double-sided tape or an adhesive.

Since the original comes into direct contact with the reading reference surface, the surface is hardly stained, and an inclined surface is generally formed on the upstream side in the original conveying direction so as to guide the passage of the original. It is.

Further, when a thick film is used, if the film is attached from the inclined surface to the reading surface, the film itself has rigidity, and thus is peeled off from the inclined portion of the sheet metal.

[0017] For this reason, at present, it is impossible to adhere to a sheet metal in an inclined shape unless a thin film having a small rigidity (usually around 100 µm) is used.

At this time, if the film is a white film having a thickness of about 100 μm, the film itself will be transparent, and the color of the adhesive or the double-sided tape used for bonding to the sheet metal will be transparent.

Therefore, it is common to use a colorless and transparent adhesive or a double-sided tape.

As described above, the reading unit (contact sensor) can read a stable white color by providing the reading reference plate with the absolute white color when reading the original.

The contact sensor 209 is held by the body frame 219 and is urged toward the contact sensor 209 by the weight of the reading reference plate 210 or a spring (not shown).

[0022]

However, in the case of the above-described prior art, the following problems have occurred.

As described above, the reading unit (contact sensor) reads a stable white color in the initial state by attaching a white film to a sheet metal using a colorless and transparent adhesive or a double-sided tape. I was able to.

However, the double-sided tape and the adhesive change with time (weathering) in response to changes in time and environment, and change from colorless to yellowish.

In this case, the yellowish color of the double-sided tape or the adhesive on the back surface of the thin white film is transparent, and the yellowish white is read by the reading unit as the absolute white for reading.

In this case, there is a problem that the read image becomes a strange image having a different color from the original.

In particular, when performing color reading, the difference in the tint of the image has become clear.

Therefore, the user cannot clean the surface of the reading reference plate only by cleaning the surface. Therefore, a normal image cannot be read unless the parts are replaced.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a stable color reference for a long period of time and a quality that enables normal image reading. An object of the present invention is to provide an image reading apparatus excellent in the above.

[0030]

According to the present invention, there is provided an image reading apparatus comprising: reading means for reading an image on a sheet; and reading color reference means at a reading position by the reading means. Wherein the reading color reference means comprises: a guide member having a reading plane portion and a document sheet guide inclined surface portion; and a color reference sheet attached to the guide member, and preventing the color reference sheet from being transparent. A transparent preventing means is provided.

Therefore, the provision of the see-through prevention means prevents the inside of the color reference sheet from being seen through.

The see-through preventing means may further print the same color on the color reference sheet.

It is preferable to print the same color on the back surface of the color reference sheet that is opposite to the reading surface.

The color reference sheet is preferably attached to the guide member with an adhesive or a double-sided tape.

The color reference sheet is preferably a white film.

It is preferable that the reading color reference means is arranged over an area including the entire area read by the reading means.

Preferably, the guide member is formed of a sheet metal.

[0038] It is preferable that a conveying means for conveying the document sheet to the reading position by the reading means is provided.

The reading means preferably has a light source for illuminating the original sheet and a reading element for reading a light image obtained by being illuminated by the light source.

It is preferable that the reading means is capable of reading a color image.

A function of transmitting the read image information to the outside,
It is preferable to provide a function of inputting image information from the outside and a function of recording image information on a sheet.

[0042]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the dimensions of the components described in this embodiment,
The material, shape, relative arrangement, and the like are not intended to limit the scope of the present invention only to them unless otherwise specified.

(First Embodiment) An image reading apparatus (original reading apparatus) according to a first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG.

First, the configuration of the entire image reading apparatus will be described with reference to FIG.

FIG. 1 is a schematic sectional view showing the overall structure of an image reading apparatus (original reading apparatus) according to the first embodiment of the present invention.

As shown in the figure, the image reading apparatus generally comprises a main body chassis 1 and a control board 2 for controlling the apparatus.
A power supply unit 3 for supplying power to the device, an operation panel 4 for operating the device, and a control board 5 for the operation panel 4
And a document table 7 on which a document 6 as a sheet is stacked.

Hereinafter, the description will be made in order from the upstream side to the downstream side of the sheet conveying path.

The original 6 is stacked on an original table 7 and an auxiliary document table 8, and guided in the width direction by a width regulating plate 9 for regulating the width direction of the original.

The separation roller 10 is rotated by a drive motor (not shown) in the direction of the arrow in the figure, and the preliminary conveyance plate 11 is urged toward the separation roller 10 so that a plurality of originals 6
Is transported to a wedge-shaped place between the friction piece 12 and the separation roller 10.

Then, the plurality of originals 6 are separated one by one by the friction pieces 12, and the feed roller 13a constituting the conveying means is rotated by a drive motor in the direction of the arrow in the drawing, so that the opposite auxiliary roller 13b is attached. Conveyed with power.

The document transport guide 14 guides the document 6 from the separation roller 10 to the contact sensor 15 as reading means.

On the upper part of the contact sensor 15 mounted on the contact sensor mounting plate 15a, there is provided a reading color reference means which is a feature of the embodiment of the present invention and serves as a background color of a document and serves as a white reference in reading. Is provided. The reading reference plate 16 has a width that covers the entire reading width of the contact sensor 15.

In the inside of the contact sensor 15,
A light source (not shown) that irradiates the original 6 (in the present embodiment, L
ED), a reading element for reading the obtained light image, and the like.

The contact sensor 15 can read a color image.

Then, the document 6 read by the contact sensor 15 is rotated by a drive motor (not shown) in the direction of the arrow in the drawing, and the urging force of the opposing auxiliary roller 17b is used to obtain the image reading device. The paper is discharged in the direction of arrow a in FIG.

Next, the configuration of the reading color reference means, which is a feature of the embodiment of the present invention, will be described in detail with reference to FIG.

FIG. 2 is an explanatory view of the reading color reference means provided in the image reading apparatus according to the first embodiment of the present invention. FIG. FIG. 2 is an enlarged perspective view of a portion provided with
FIG. 2B is an enlarged cross-sectional view of the document reference plate 16.

In the present embodiment, the reference plate 16a is formed as a guide member by a sheet metal, and the reading flat portion 161 is secured so as to be in close contact with the reading surface of the contact sensor 15.

The reference plate 16a is provided with a white mylar (white film) 16b, which is a color reference sheet which is the most characteristic of the embodiment of the present invention, and a double-sided tape 16d (the same effect can be obtained with an adhesive). ) Is attached along the reference plate 16a.

In this embodiment, the white mylar 16
b uses a PET film to make it difficult to attach dirt due to friction with the original.

Further, a white ink coating 16c constituting a see-through preventing means is applied to the back side of the document passing surface (reading surface).

Since the original is conveyed in the direction of the arrow a shown in the figure, a guide surface (original sheet) around θ = 20 ° to 60 ° is provided on the upstream side in the original conveying direction so that the original easily enters the reading contact surface. A guide slope portion 162 is provided on the reference plate 16a.

For this reason, if the white mylar 16b has rigidity (when the thickness is large), the white mylar 16b is peeled off from the reference plate 16a. Therefore, a thin film having a thickness of about 100 μm is used (in this embodiment, the thickness is 100 μm). Was used.)

As described above, as described in the prior art, if only the thin film sheet is used, if the ground color (silver or iron color) of the reference plate 16a or the double-sided tape 16d is discolored due to aging, it becomes transparent. Therefore, a dull white reference is obtained, and a proper (initial state) white cannot be obtained.

However, in the present embodiment, as described above, since the white ink coating 16c is present immediately behind the white mylar 16b, the ground color of the reference
Prevents the white mylar 16b from being transparent from the discoloration of 6d,
An appropriate white color can always be obtained.

Referring to FIG. 3, the difference between the case where the white ink coating 16c is applied and the case where the white ink coating 16c is not applied will be described.

FIG. 3 is a read output waveform diagram.

FIGS. 3 (a) and 3 (b) show a white color where the reading standard is appropriate (when the white ink coating 16c is applied).
FIG. 8 is a read output waveform diagram for each white color when the double-sided tape is discolored and becomes transparent when there is no white ink coating 16c.

No problem arises when both are subjected to black and white binarization processing. However, when gray scale (multi-value processing) or color reading is performed, those who do not apply the white ink coating 16c are considered. On the other hand, if the double-sided tape is discolored and becomes transparent, the white output falls below its original level, and it is not possible to produce the gradation of the portion c shown in FIG. 3B.

Also, since the white reference is dark, the image becomes relatively bright.

Further, in the case of color reading, if the double-sided tape is discolored yellowish or reddish, the same output cannot be obtained for the three colors RGB, and the color of the image becomes strange. Read.

On the other hand, when the white ink coating 16c is applied, as shown in FIG. 3A, the original image can be faithfully read because it is read with an appropriate white reference.

As described above, the color reference sheet (white mylar)
By applying the same color paint (white ink coating) as the color reference sheet as a means for preventing see-through, the color reference sheet can be prevented from being transparent, and the initial color reference (absolute white reference) can be kept for a long time. Can be maintained.

Therefore, stable image reading can be performed over a long period of time, and the quality is improved.

It is to be noted that the quality can be improved as described above merely by painting, and the configuration is not complicated.

(Second Embodiment) FIGS. 4 to 7 show a second embodiment of the present invention. In the first embodiment, the case of the image reading apparatus having the image reading function has been described. However, in the present embodiment, in addition to the image reading function, the multifunction apparatus having the functions such as the image recording function and the communication function is also provided. The case of a functional image reading device will be described.

First, an entire image reading apparatus according to a second embodiment of the present invention will be described with reference to FIGS.

FIG. 4 is a schematic sectional view showing the overall structure of an image reading apparatus (original reading apparatus) according to a second embodiment of the present invention, and FIG. 5 is an image reading apparatus according to the second embodiment. FIG. 6 is an external perspective view of the apparatus, and FIG. 6 is a schematic configuration diagram of an image reading apparatus according to a second embodiment of the present invention.

The image reading apparatus according to the present embodiment is a composite apparatus having a facsimile function and a scanner function that can be loaded into an external device (such as a personal computer (PC)).

That is, in addition to the image reading function, it has functions such as an image recording function (a function of recording image information on a sheet) and a communication function (a function of transmitting image information to the outside and a function of inputting image information from the outside). ing.

In the following description, a description will be given of a case of a multifunction device to which a so-called ink jet recording system is applied as a recording system for recording an image.

As shown in FIG. 4, the multifunction device generally includes a paper feeding system A for supplying a recording sheet, a recording system B as a recording device for recording an image on a sheet, and an image on a document. System C for reading, and an operation unit D for performing each operation.
01, a main body lower cover 102, a control board 102a for controlling the apparatus, and a power supply unit 102 for supplying power to the apparatus.
b and the like.

First, the reading system C which is a feature of the embodiment of the present invention will be described.

The reading system C irradiates the original 103 with light, converts the reflected light into an electric signal, and transmits this signal to another device or transmits it to its own recording system B according to the operation mode. Is what you do.

More specifically, the document 103 is stacked on the document table 104 and the document auxiliary tray 105, and the document width regulating plates 106a and 106b prevent skew in the width direction during conveyance.

The original 103 having a plurality of sheets is
7 is rotated in the direction of the arrow by a drive motor (not shown),
When the preliminary transport plate 108 is urged toward the separation roller 107, the preliminary transport plate 108 is transported to a wedge-shaped place between the friction piece 109 and the separation roller 107.

The plurality of originals 103 are separated one by one by the friction pieces 109, and the feed roller 110a is rotated in the direction of the arrow by a drive motor (not shown) to obtain the urging force of the opposing auxiliary roller 110b. Transported.

The document conveying guide 111 is provided with the separation roller 10.
7 to a contact sensor 112 to be described later
To guide.

On the top of the contact sensor 112 attached to the contact sensor attachment plate 112a, a reading reference plate 113, which is a feature of the embodiment of the present invention, becomes a background color of an original and becomes absolute white in reading.
The reading reference plate 113 has a width that covers the entire reading width of the contact sensor 112.

Further, inside the contact sensor 112, a light source (not shown) for irradiating the document 103 (in this embodiment, an LED is used) is arranged.

Then, the document 103 read by the contact sensor 112 is rotated by a driving motor (not shown) in the direction of the arrow in the drawing to obtain the urging force of the opposing auxiliary roller 114b. It is discharged to the outside (in the direction of the arrow d shown).

Then, the read originals are stacked on the original discharge tray 115.

The document discharge tray 115 is configured to be movable (slidable) in the direction of the arrow shown in FIG. 5, and can be stored in the apparatus except for the reading operation. .

Here, the configuration of the reading reference plate 113 is the same as that of the reading reference plate 1 in the first embodiment described above.
6 (reading color reference means).

Next, the operation section D will be described.

The operation unit D is for performing operations such as a copy operation, a transmission operation, and a scanner operation.

The operation cover 116 has a dial key 116a.
Keys and a display unit 116b are provided in accordance with various operations.

The operation unit D is provided above the document conveying mechanism in the reading system C, and is configured to be rotatable in the direction of arrow f shown in FIG.

A telephone line-like modular 102c1 for transmitting and receiving is provided at one end of the operation unit D.
Demonstrate communication function.

Next, the paper feeding system A will be described.

As the recording sheet 120, it is possible to use plain paper, a plastic sheet or the like and other materials which can transfer ink.

In the present embodiment, for example, plain paper cut into B4 size or A4 size is
Can be used as

The recording sheet 120 is provided on the recording sheet height regulating plate 10 provided on the back of the main body upper cover 101.
By 1a, a limited number of sheets are stored and stacked on the recording paper tray 121 and the recording paper auxiliary tray 122 that can be pulled out in the direction of the arrow.

The recording paper size guide 123 regulates the width of the recording sheet 120 in the width direction.

In FIG. 4, a pressure plate 124 formed at the bottom of the recording sheet 120 is supported so as to be rotatable around a rotation shaft (not shown).
The rotation of the recording sheet 12 is controlled by the pressure plate spring 124a.
0 so that it is conveyed while being in contact with the paper feed roller 125.
It is configured with spring properties.

When the paper feed roller 125 is driven to rotate in the direction of the arrow in the figure, the conveyed recording paper 125 is separated by claw separation and conveyed one by one to the recording system B.

Next, the recording system B will be described.

As a recording method in the present multifunction apparatus, a method generally called an ink jet recording method is employed.

In FIG. 4, a recording system B prints an image on a recording sheet 120 supplied from a paper feeding system A in accordance with an image signal transmitted from another device or an image signal transmitted from a reading system C. It is to be recorded.

More specifically, the recording paper presser 126
Is pressed against the LF roller 127, and causes the pinch roller 126a to face the LF roller 127 while also serving as an upper guide of the recording sheet 120 conveyed from the paper feeding system A.

Then, the recording sheet 120 is transported between the recording cartridge 128 and the platen plate 129, and the recording operation is performed by the recording cartridge 128.

In the present embodiment, the recording cartridge 128 is configured to perform serial printing while moving in the width direction of the recording sheet 120 by a motor and a driving system (not shown).

Then, the recording sheet 120 after print recording is performed.
The recording sheet 12 is fixed so that the printing surface is not stained by the discharge roller 130a and the spur roller 130b opposed thereto.
5 is conveyed out of the apparatus in the direction of arrow e, and a discharge cover 131 and a discharge auxiliary tray 132 movable in the direction of the arrow shown in FIG.
Load to.

In FIG. 6, the document loading table 104 is moved by an arrow g by a rotation center (not shown) of the main body upper cover 101.
It is supported rotatably in the direction.

As a result, the recording cartridge 128 can be attached and detached in the direction of arrow h.

Next, the operation control of the image reading apparatus according to the second embodiment of the present invention will be described with reference to FIG.

FIG. 7 is a block diagram showing a control system of the image reading apparatus according to the second embodiment of the present invention.

As shown in the figure, the control system generally includes a control board 102a which is a control unit for controlling the multifunction peripheral,
Power supply unit 102 for supplying power to the entire composite device
b, a modem board unit 102a1, a communication board unit (NCU) 102c for connecting a telephone, and an operation unit D
And a display unit 116b for displaying the contents and the like inputted from the user.

The control board 102a is used as a work area for the CPU 102a2 for controlling the entire apparatus, a ROM 102a3 for storing various programs and various data, and a temporary storage of various data such as the number of recordings. And a RAM 102a4 for storing and registering various data, and an input / output switching interface 102a8.

Reference numeral 102a5 denotes a line memory for storing an image of each line of image data. In the case of transmitting or copying a document, one line of image data from the document reading system C is stored. In the case of reception, the decoded data for one line is stored.

The image data stored in the line memory 102a5 passes through the CPU 102a2 and adds a recording system control code to the input / output switching interface 102.
a8 to the CPU B1 in the recording system B,
1 decodes the recording system control code, whereby image recording is performed.

Also, 102a6 represents the image information to be transmitted as M
This is an encoding / decoding unit that performs more encoding, such as H encoding, or that decrypts received encoded image data and converts it into image data.

Reference numeral 102a7 denotes a buffer memory for storing coded image data transmitted and received.

Then, image data and text data can be output from the peripheral computer E to the recording system B via the printer interface 102a9, and image data read from the reading system C can be taken into the peripheral computer E.

As described above, even in a multifunctional image reading apparatus (composite apparatus), it is possible to maintain an initial color reference (absolute white reference) for a long time and perform stable image reading for a long time. Quality can be improved.

(Other Embodiments) In the above-described embodiment, an apparatus adopting a recording system by an ink jet recording system has been described. However, an electrophotographic recording system using a toner (laser beam printer), or an ink sheet. The present invention can also be applied to an apparatus adopting a recording method such as a thermal transfer recording method using a thermal head.

In the above-described embodiment, the contact sensor is used as the reading means. However, it is obvious that the contact sensor may be constituted by a reduction optical system using a light source and a CCD.

Further, in the above-described embodiment, the reading reference plate is made of sheet metal. However, if a flat surface is ensured, the reading reference plate may be made of a molded part (resin material part). Although a configuration in which a film is adhered is shown, it is a matter of course that a white sheet such as a PVC sheet or paper may be used as long as the material does not easily adhere to the surface.

Furthermore, in the above-described embodiment, the claw separation mechanism is used as the mechanism of the paper feeding system. However, it is needless to say that another separation method such as friction separation or retard separation may be used.

[0130]

According to the present invention, by providing the see-through prevention means, the inside of the color reference sheet is prevented from being seen through, and a stable color reference can be performed over a long period of time, thereby enabling normal image reading. And the quality is improved.

The see-through preventing means can prevent the inside of the color reference sheet from being transparent by further printing the same color on the color reference sheet.

The reading means can be constituted by a light source for illuminating the sheet and a reading element for reading a light image illuminated by the light source.

The reading means can read a color image and can prevent the influence of external light.
A stable white reference can be read, and color deterioration can be prevented.

A function of transmitting the read image information to the outside,
If a function of inputting image information from the outside and a function of recording image information on a sheet are provided, multi-functionalization becomes possible.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing the overall structure of an image reading apparatus according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a reading color reference unit provided in the image reading apparatus according to the first embodiment of the present invention.

FIG. 3 is a read output waveform diagram.

FIG. 4 is a schematic sectional view showing the overall structure of an image reading apparatus (document reading apparatus) according to a second embodiment of the present invention.

FIG. 5 is an external perspective view of an image reading apparatus according to a second embodiment.

FIG. 6 is a schematic configuration diagram of an image reading device according to a second embodiment of the present invention.

FIG. 7 is a block diagram showing a control system of an image reading apparatus according to a second embodiment of the present invention.

FIG. 8 is a schematic configuration diagram of an image reading apparatus according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body chassis 2 Control board 3 Power supply unit 4 Operation panel 6 Documents 13a, 110a Feeding rollers 13b, 110b Auxiliary rollers 15 Contact sensors 16 Document reference plate 16a Reference plate 16b White mylar 16c White ink coating 16d Double-sided tape 161 Reading plane portion 162 Guide surfaces 17a, 114a Discharge rollers 17b, 114b Auxiliary rollers A Feeding system B Recording system C Reading system D Operation unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Atsushi Saito 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (11)

[Claims] 1. An image reading apparatus comprising: reading means for reading an image on a sheet; and reading color reference means at a reading position by the reading means, wherein the reading color reference means comprises a reading plane portion and a document sheet guide slope portion. An image reading apparatus comprising: a guide member having a color reference sheet attached to the guide member; and a transparent preventing means for preventing the color reference sheet from being transparent. 2. The image reading apparatus according to claim 1, wherein said see-through preventing means further prints the same color on the color reference sheet. 3. The image reading apparatus according to claim 2, wherein the same color printing is performed on the back surface of the color reference sheet opposite to the reading surface. 4. The image reading device according to claim 1, wherein the color reference sheet is attached to the guide member with an adhesive or a double-sided tape. 5. The image reading apparatus according to claim 1, wherein said color reference sheet is a white film. 6. An image reading apparatus according to claim 1, wherein said read color reference means is arranged over an area including the entire area read by said read means. 7. The image reading apparatus according to claim 1, wherein said guide member is formed of a sheet metal. 8. The image reading apparatus according to claim 1, further comprising a conveying unit that conveys the document sheet to a reading position of the reading unit. 9. The apparatus according to claim 1, wherein said reading means has a light source for illuminating the original sheet, and a reading element for reading a light image obtained by being illuminated by the light source. The image reading device according to claim 1. 10. An image reading apparatus according to claim 1, wherein said reading means is capable of reading a color image. 11. The apparatus according to claim 1, further comprising a function of sending the read image information to the outside, a function of inputting the image information from the outside, and a function of recording the image information on a sheet. The image reading device according to any one of the above.