JP2001077985A - Image reader, control method and recording medium thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism of an image reader that senses insertion of an original clamped in an original holder, without the need for a special sensor in the image reader having a read section at a fixed position and reading the original carried at a constant speed, and to provide its control method and its recording medium. SOLUTION: An identification hole 5 is provided to an original holder 1 at a sensing position by a hop sensor of the image reader. The image reader recognizes sensing of the original holder 1 when a top sensor senses a tip of an original 7, while the hop sensor senses the identification hole so as to set read specifications corresponding to the original clamped in the original holder. Furthermore, a recording medium storing a control program for realizing control procedures of the image reader stores the control procedures to detect the original holder.

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 reading section at a fixed position and reading a document conveyed at a constant speed by recognizing a document inserted by using a document holder and reading image reading conditions. The present invention relates to a control system for adjusting the settings of the above and a technique for realizing the control method, and also relates to a computer-readable recording medium for realizing the control procedure.

[0002]

2. Description of the Related Art An embodiment of an image reading apparatus to which the prior art is applied will be described with reference to FIGS.

FIG. 9 shows the shape of a document holder to which the conventional technique is applied. That is, the original holder 5
Reference numeral 1 denotes a clear sheet 52 made of a transparent material and a base sheet 53 made of a white material.

An original 57 to be read is sandwiched between the clear sheet 52 and the base sheet 53, and the image reading device holds the original unit 57 with the original 57 sandwiched therebetween. Is inserted as

As the original 57, an original which cannot be conveyed inside the image reading apparatus in a normal state, such as a soft material having a weak stiffness, is used. Therefore, the original 57 can be handled with the strength of the original holder 51 by being sandwiched between the original holders 51.

As described above, the original holder 51
Has a bonding unit 54, and unless a special measure is taken for reading the image, the bonding unit 54 is read as a useless and useless image.

In order to eliminate the useless image, a method such as shifting the read image area may be used in advance. For this purpose, measures such as setting the read mode to the original holder 51 in advance are used. Is required.

When the size Ds of the bonding portion 54 of the document holder 51 is reduced, the bonding portion 5
The adverse effect such as a decrease in the strength of No. 4 is expected.

Further, the original 57 is a clear sheet 5
2, the color tone may be changed in the read image data due to the influence of the clear sheet 52. Therefore, it is necessary to take a measure for correcting a change in color tone caused by the clear sheet 52 as necessary.

Referring to FIG. 10, a description will be given of a situation in which an original conveying system in an image reading apparatus to which the conventional technique is applied conveys an original held between originals.

An original 60 is inserted from an insertion opening formed by a pick roller 61 and a separation pad 62,
The first feed roller 63 is conveyed by the first feed roller 63, and its tip reaches the first feed roller 63 in a stopped state and stops once, and the posture is adjusted following the first feed roller 63 by the pressing force of the pick roller 61.

When rotation of the first feed roller 63 and the second feed roller 65 driven in conjunction with the first feed roller 63 is started, the leading edge of the document 60 is held by the first feed roller, and conveyance at a constant speed is started. I do.

The leading end of the original 60 conveyed at the constant speed passes through the reading section 64 and reaches the second feed roller 65, where the first feed roller 63 and the second feed roller 65 continue the conveyance. Even if the end of the document 60 comes off the first feed roller 63, the second feed roller 65 continues the conveyance at a constant speed.

A hop sensor 66 is disposed in front of the pick roller 61 at the insertion opening to detect insertion of the document 60. The hop sensor 66 detects the presence of the document 60 at a fixed point on the side. That is, the hop sensor 66 detects the leading end of the document 60, starts the rotation of the pick roller 61, and pulls the document 60 into the image reading apparatus.

Further, a top sensor 67 is provided between the first feed roller 63 and the reading section 64 in the document conveying path.
To detect the timing at which the leading edge of the document 60 passes. The above-described top sensor 67 detects the presence of the document 60 at the fixed side point. That is, the top sensor 67 detects the leading end of the document 60 that has started constant-speed conveyance by the first feed roller 63, and
4 sets the timing to start image reading.

Referring to the timing chart shown in FIG. 11, the timing of the main part in the document conveying system of the image reading apparatus will be described.

At timing t1 when the hop sensor is switched from OFF to ON by inserting a document, the feed roller and the top sensor are kept OFF.

At time t2, the feed roller is turned off.
After the document starts to be conveyed at a constant speed, the top sensor detects the leading edge of the document and switches from OFF to ON at timing t3.

At the timing t3, the top sensor
After a predetermined time T after switching from the FF, image reading by the reading unit is started at timing t4.

Control of reading an inserted image original by an image reading apparatus to which the conventional technique is applied will be described with reference to FIGS. 12, 13 and 14.

FIG. 12 is a block diagram showing the arrangement of elements referred to in describing the control procedure. That is, the reading control unit B54 incorporated in the image reading device B05 receives a signal from the top sensor B51 and the hop sensor B52, and receives an image reading signal from the reading unit B53.

The reading control section B54 includes a reading specification setting section B56 for storing a predetermined image reading specification, and an image data generating section B57 for generating image data based on a reading output obtained by reading a document by the reading section B53. Have.

The control procedure of the image reading operation executed by the reading control section B54 is realized by a control program stored in a control program section B58.

The host device B06 connected to the image reading device B05 has a built-in operation control unit B60 and issues an instruction to the image reading device B05 via a driver program B61 in accordance with an instruction of the application program B62. In addition, the image data is provided.

Referring to FIGS. 13 and 14, a description will be given of a control procedure for the image reading apparatus to which the conventional technique is applied to read an inserted image document.

The control procedure will be described with reference to FIG.
Reference numerals used in the description of each step are based on FIG.

In step S51, reading conditions are set prior to image reading. The details of the reading condition setting in step S51 are shown in FIG.

The details of the flow of setting the reading conditions shown in step S51 will be described with reference to FIG.

In step S61, the arithmetic control unit B60 of the host device B06 obtains an instruction from the application program B62, and sets a reading mode according to the format specified in the driver program B61.

In step S62, the arithmetic control unit B6
0 sets the storage location of the image data in response to an instruction from the application program B62.

In step S63, the operation control unit B6
0 transfers the set value of the reading mode set to the image reading apparatus B05 via the driver program B61.

In step S64, the image reading device B05
Receives the set value and proceeds to step S65 to read the set value and store it in the specification setting section B56.

Returning to FIG. 13, the description of the control procedure of the image reading apparatus will be continued.

In step S52, the image reading device B0
5 is inserted with an image document. If the image document to be inserted is sandwiched between document holders, in the procedure for setting the reading conditions shown in step S51, the set value of the image reading start position is set in advance in the document holder. It is necessary to take measures such as shifting the length according to the length of the bonded portion.

In step S53, the inserted image document is detected, and the hop sensor B52 switches from OFF to ON.

In step S54, the feed roller is turned ON to start the rotation drive, and the image document starts to be conveyed at a constant speed.

In step S55, the top sensor B51 detects the leading edge of the image document and switches from OFF to ON. After a predetermined time, the process proceeds to step S56, where the reading unit B53 executes image reading.

In step S57, the image data generation unit B5
Reference numeral 7 generates image data based on a read output obtained by reading the image document by the reading unit B53.

In step S58, the image data generated by the image data generator B57 is transferred to the host device B06.

[0040]

As described above, in the conventional image reading apparatus and the control method thereof,
There are the following problems.

In the case where the image document inserted into the image reading device is sandwiched by the document holder, the image document is sequentially inserted into the image reading device while being mixed with the image document not sandwiched by the document holder. Usually, since the image reading apparatus does not have a function of identifying the document holder, a document having a document holder becomes image data obtained by reading the document holder portion, and a document having no document holder corresponds to only the document. Becomes the scanned image data,
The data is transferred to the host device.

Therefore, the transfer data including the image data obtained by reading the document holder portion as described above must be edited and processed in the host device to delete unnecessary image data portions.

In the case where the image original is held between the original holders as described above, for example, if the image reading apparatus has a mechanism for detecting the original holder from the inserted image original, Thus, even if reading is performed with a mixture of documents to be interposed, a processing method of reading only a necessary image portion is set in advance, so that the efficiency can be greatly improved.

As one embodiment of the mechanism for detecting the document holder, a predetermined recognition pattern such as a bar code is disposed at the bonding portion of the document holder, and the recognition pattern is read by the image reading. There is a method in which a reading unit of a device reads a document and recognizes the document holder.

It has been pointed out that when the method using the above-described recognition pattern is employed, a huge amount of algorithms required for pattern recognition are required.

As another embodiment of the mechanism for detecting the document holder, for example, a notch portion for recognition is provided at a bonding portion of the document holder, and the notch portion is provided with a dedicated sensor. Has been proposed.

In the detection method using the above-mentioned dedicated sensor,
As a matter of course, the result was additional installation of sensors,
This leads to an increase in production costs.

Thus, in the document conveying type image reading apparatus and its control method, a mechanism for detecting a document sandwiched by a document holder is realized without additionally installing a sensor in the apparatus, and only a necessary image portion is provided. SUMMARY OF THE INVENTION It is an object of the present invention to provide a control method for transferring an IP address to a host device.

[0049]

In order to solve the above problems, the present invention employs the following means.

1) An identification hole is provided at a position corresponding to the hop sensor of the image reading device in the bonding portion of the document holder for nipping and transporting the document, and the hop sensor detects in the image reading device. A document holder recognizing section for recognizing the presence of the document holder with the identification hole is provided.

By taking this measure, the image reading apparatus has an effect of being equipped with a mechanism for detecting the presence of the document holder.

2) In the control method of the image reading apparatus, while the top sensor confirms the conveyance of the original,
A hop sensor detects a recognition hole provided in the document holder.

By taking this means, the image reading apparatus has an effect of recognizing that the document currently being conveyed has a document holder.

3) In the control method of the image reading apparatus described above, the document currently being conveyed is recognized as having the document holder, and the image reading specification is corrected and set.

By taking this means, the image reading apparatus recognizes that the document currently being conveyed has the document holder and executes processing such as correcting the position of image reading. Get.

4) In the control method of the image reading apparatus, the procedure in which the hop sensor detects the recognition hole provided in the document holder while the top sensor confirms the document conveyance is included as a part of the control program. A control program for implementing the control method of the image reading device is stored in a recording medium storing the control program.

By taking this means, the image reading apparatus has an effect of providing a procedure for recognizing a document having a document holder.

[0058]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention takes the following forms.

1) An image reading apparatus which has a reading unit at a fixed position and reads a document conveyed at a constant speed, has an identification hole at a position corresponding to a hop sensor.
A document holder for holding the document to be read and transporting the document; and a document holder recognition unit for identifying the document holder based on a signal obtained by the hop sensor detecting the identification hole.

By taking this form, the image reading apparatus has an effect of being equipped with a mechanism for detecting a document holder.

2) In the above-described image reading apparatus, the original holder has a white reference portion for shading correction at its bonding portion.

By adopting this form, the image reading apparatus has an effect of providing a shading white reference portion corresponding to each document holder.

3) In the image reading apparatus, the document holder has a clear sheet for blocking light having the same wavelength as the dropout color specified in the document to be read.

By adopting this mode, the image reading apparatus has an effect of providing a filter for deleting an image portion having a specific color defined by each document holder.

4) In a control method of an image reading apparatus which has a reading unit at a fixed position and reads a document conveyed at a constant speed, when the document sandwiched by the document holder is inserted into the image reading apparatus, When the hop sensor detects the identification hole of the document holder and then the top sensor detects the leading edge of the document, the image reading indicates that the document is sandwiched by the document holder. The device recognizes.

By taking this form, the image reading apparatus has an effect of recognizing that the document currently being conveyed is a document having a document holder.

5) In the control method of the image reading device, when the document sandwiched by the document holder is inserted into the image reading device, the image reading device is configured such that the document is sandwiched by the document holder. And changes the reading start position of the document held by the document holder.

With this configuration, the image reading apparatus recognizes that the document currently being conveyed is a document having a document holder, and generates image data in which the bonding portion of the document holder has been deleted in advance. The effect of doing is obtained.

6) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may include:
Recognizing that the original is sandwiched by the original holder, prior to reading the image of the original, a white reference is created by a white reference unit provided in the original holder to perform shading correction.

By adopting this mode, the image reading apparatus has an effect of executing shading correction based on the white reference read under the same conditions as those of the document currently being conveyed.

7) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may be configured such that the document is sandwiched between the document holders. Then, the size of the identification hole is read to specify the document holder, and the image reading mode executed by the image reading apparatus is changed according to a predetermined setting.

By adopting this form, the image reading apparatus has an effect of recognizing the document sandwiched between the document holders, specifying the type of the document, and setting the reading mode according to the type of the document. .

8) In the above-described method for controlling an image reading device, when a document sandwiched by a document holder is inserted into the image reading device, the image reading device may include:
Recognizing that the document is sandwiched by the document holder, further reading the size of the identification hole, the document holder has a clear sheet that blocks light of a specific wavelength. Recognize that.

By adopting this mode, the image reading apparatus has an effect of recognizing that the document holder deletes light of a specific wavelength and uses it for image reading.

9) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may:
Recognizing that the original is sandwiched between the original holders, further identifying the original holder by reading the size of the identification hole, and reading the original by the image reading apparatus according to a predetermined setting. Specify the storage location of the image data.

By adopting this mode, the image reading apparatus recognizes the document sandwiched between the document holders, specifies the type of the document, and stores the image data in the storage destination set according to the type of the document. Is obtained.

10) In the control of the image reading apparatus which has a reading unit at a fixed position and reads a document conveyed at a constant speed, the document to be read, which is sandwiched between the document holders, is inserted into the image reading apparatus. When the hop sensor detects the identification hole of the document holder, the top sensor detects the leading edge of the document, and the image indicates that the document is sandwiched by the document holder. The procedure recognized by the reading device is stored in a computer-readable recording medium as a part of the control program of the image reading device.

By adopting this mode, the image reading apparatus has an effect of providing a control procedure for recognizing the document held by the document holder.

[0079]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A representative embodiment according to the present invention will be described with reference to FIGS.

FIG. 1 shows the shape of a document holder according to a typical embodiment to which the present invention is applied.

The original holder 1 has a shape in which a clear sheet 2 and a base sheet 3 made of a transparent film-like material are joined at a bonding section 4, and a document is read between the clear sheet 2 and the base sheet 3. The original 7 to be read is sandwiched, and the surface to be read of the original 7 is read via the clear sheet 2.

The bonding portion 4 is provided with an identification hole 5. Further, a white reference portion 6 is arranged near the tip of the bonding portion 4 in the insertion direction, and the white reference portion 6 is sandwiched between the clear sheet 2 and the base sheet 3.

FIG. 2 shows a document conveying path of an image reading apparatus according to a typical embodiment to which the present invention is applied.

The original 10 is inserted from an insertion opening formed by the pick roller 11 and the separation pad 12. The leading end of the inserted document 10 reaches the first feed roller 13 in a stopped state, and its movement is temporarily stopped, and the leading end of the document 10 is stopped in the first feed roller 1 in the stopped state.
Adjust the posture according to 3.

Next, the rotation drive of the first feed roller 13 starts, and the leading end of the document 10 is held by the first feed roller 13 which has started the rotation drive, and the conveyance at a constant speed is started. .

The document 10 conveyed at a constant speed by the first feed roller 13 is read by the reading unit 14 and then the first feed roller 1
The second feed roller 15 that rotates in conjunction with the third feed roller 15
As a result, the sheet is continuously transported at a constant speed, and is discharged outside the apparatus.

A hop sensor 16 is arranged in front of the pick roller 11 at the insertion opening to detect insertion of the document 10. The hop sensor 16 detects the presence of the document 10 at a fixed point on the side. That is, the hop sensor 16 detects the leading end of the document 10, starts the rotation of the pick roller 11, and draws the document 10 into the image reading apparatus.

Further, a top sensor 17 is provided between the first feed roller 13 and the reading section 14 in the document conveying path.
To detect the timing at which the leading edge of the document 10 passes. The above-mentioned top sensor 17 detects the presence of the document 10 at a fixed point on the side. That is, the top sensor 17 detects the leading end of the document 10 at which the first feed roller 13 starts conveying at a constant speed, and the reading unit 1
4 sets the timing to start image reading.

Here, the hop sensor 16 detects that the original 1
The side fixed point for detecting the leading end of 0 is located on the line of Lh in FIG. 1 described above, and the Lh passes through the identification hole 5. The side fixed point at which the top sensor 17 detects the leading end of the document 10 is located on the line Lc in FIG.

The above-mentioned Lh and Lc are arranged at separate positions, and the identification hole 5 provided in the document holder 1 shown in FIG. 1 is detected only by the hop sensor 16 in FIG. Thus, while the top sensor 17 detects only the leading edge of the document holder 1, the hop sensor 16 determines the leading edge of the document holder 1 and the leading edge and trailing edge of the identification hole 5. To detect.

The conditions required for the distance Da from the leading edge to the leading edge of the identification hole 5 and the distance Db from the leading edge to the trailing edge of the identifying hole 5 of the original holder 1 shown in FIG. 1 will be described. .

First, as a specification relating to the image reading apparatus, the minimum dimension in the transport direction of a document to be inserted into the image reading apparatus is A dimension (ie, the distance between the hop sensor 16 and the top sensor 17) in FIG. It is stipulated that it exceeds. This rule stipulates that when a document having no normal document holder is inserted, the top sensor 1 is used.
When the hop sensor 16 detects the leading edge of the document,
This guarantees the state of detecting the presence of a document, and at the same time is a dimension necessary for stably executing actual document conveyance.

Next, it is assumed that the Da dimension of the original holder 1 shown in FIG. 1 is set smaller than the A dimension in FIG. By this dimension setting, the top sensor 17
This guarantees that the hop sensor 16 detects the identification hole 5 when detecting the leading end of the document holder 1.

At the same time, the original holder 1 shown in FIG.
Is set to be larger than the C dimension in FIG. By this dimension setting, the top sensor 1
When the hop sensor 16 detects the identification hole 5 when the front end 7 of the original holder 1 is detected, the front end of the original holder 1 shown in FIG.
This guarantees a state in which the sheet is conveyed at a constant speed while being held by the feed roller 13.

Further, D of the original holder 1 shown in FIG.
It is assumed that the dimension b is set smaller than the dimension B in FIG. This dimension setting guarantees that the hop sensor 16 detects the front and rear edges of the identification hole 5 and calculates the size before the start of reading.

However, if the image reading apparatus is a simple apparatus that simply detects the original holder, the Da dimension of the original holder 1 shown in FIG. 1 is set smaller than the A dimension in FIG. Only conditions are required.

By realizing the above combination,
If the image reading device is in a state where the hop sensor has detected the presence of the document when the top sensor detects the leading edge of the document, the document is recognized as having no document holder, and If the hop sensor does not detect the presence of the document when the top sensor detects the leading edge of the document, it is determined that the identification hole is detected if the document has a document holder. It is recognized that there is.

A control system for detecting the document holder of the image reading apparatus will be described with reference to FIG.

A reading control section 24 incorporated in the image reading apparatus 21 has a document holder recognizing section 25, which compares the detection signals transferred from the top sensor 22 and the hop sensor 23 to recognize the presence or absence of the document holder. Further, the type of the document holder is identified by measuring the length of the detection signal transferred from the hop sensor 23.

The document holder recognizing section 25 provides the reading specification setting section 26 with information on the presence or absence of the document holder and information on the type of the document holder.

Upon receiving the information that the document having no document holder has been recognized, the reading specification setting section 26 keeps the reading start timing at the normal setting, and outputs the information that the document having the document holder has been recognized. If received, the reading start timing is set in accordance with the document holder, necessary control data is transferred to the image data generation unit 27, and preparation is made for generation of image data in which the bonding unit provided in the document holder is deleted.

Further, when the reading specification setting section 26 receives the information on the type of the document holder together with the information that the document having the document holder has been recognized, the data of the reading specification that matches the corresponding document holder from the predetermined reading specification. Is taken out and transferred to the image data generation unit 27.

Here, a description will be given of an example of the specification of the reading specification depending on the type of the document holder.

For example, when a color photograph is to be inserted into one specific type of document holder and inserted, the type of the document holder is set in the host device 29 and the reading mode is set prior to the start of the reading operation. Color reading is performed, and the image density and gradation are set to the specifications according to the color photograph. If necessary, a file for storing the image data obtained by reading the color photograph is designated, and the necessary data is transferred to the image reading device 21.

The data relating to the reading specification is stored in the reading specification setting section 26, and the original holder recognition section 25
If the information that the corresponding document holder is recognized is provided, the reading specification is provided to the image data generating unit 27.

For example, as a document to be sandwiched by another specific type of document holder, a slip or the like in which handwritten characters are described in a frame of a dropout color is specified, and the above-mentioned clear sheet of the document holder is also provided. In the case of using a document holder using a material that blocks light having a wavelength matching the dropout color, the type of the document holder is set in the host device 29 and the reading mode is set to monochrome before starting the reading operation. The reading is performed, and the image density and the gradation are set in accordance with the above-mentioned slips. If necessary, an OCR processing program for processing the image data obtained by reading the slips is designated, and a file for storing the data after the OCR processing is designated, and the necessary data is read by the image reading device 21. Transfer to

The data relating to the reading specification is stored in the reading specification setting section 26, and the document holder recognition section 25
If the information that the corresponding document holder is recognized is provided, the reading specification is provided to the image data generating unit 27.

The timing for detecting a document holder from a document inserted into the image reading apparatus will be described with reference to FIG.

FIG. 4A shows the timing when a document having no document holder is inserted.

When the document is inserted at the timing t1, the hop sensor switches from OFF to ON.

At timing t2, the feed roller is turned off.
From ON to ON, the rotation drive starts, and the document starts to be conveyed at a constant speed.

At timing t3, the top sensor switches from OFF to ON, and the reference value of the image reading timing is established. If it is confirmed that the hop sensor is ON at the timing t3, it is determined that the document is a document having no document holder.

After a predetermined time T from the timing t3, image reading is started at a timing t4. At the timing t4, the leading end of the document is positioned on the scanning line of the reading unit.

FIG. 4B shows the timing when a document having a document holder is inserted.

When the document is inserted at the timing t1, the hop sensor switches from OFF to ON.

At timing t2, the feed roller is turned off.
From ON to ON, the rotation drive starts, and the document starts to be conveyed at a constant speed.

At timing t3, the top sensor switches from OFF to ON, and the reference value of the image reading timing is established. If it is confirmed that the hop sensor is OFF at the timing t3, it is determined that the document is a document having a document holder.

After a time Th changed from the timing t3 according to the document holder, a timing t5
To start image reading. At the timing t5, the leading end of the document holder passes through the scanning line of the reading unit, and the leading end of the document held in the document holder is positioned on the scanning line.

Referring to FIGS. 5 to 8, a description will be given of a control procedure in which the image reading apparatus according to the representative embodiment of the present invention detects a document having a document holder and executes image reading.

FIG. 5 is a block diagram showing components referred to in the description of the control procedure. FIG.
5 is a flowchart for explaining a procedure of the control. 7 and 8 are flowcharts showing details of the flow shown in FIG.

Referring to the block diagram shown in FIG. A reading control unit B14 incorporated in the image reading device B01 includes a document holder recognition unit B15, and recognizes the presence or absence of a document holder based on signals transferred from the top sensor B11 and the hop sensor B12.

The original holder recognizing section B15 includes a timing measuring section B15a, and the hop sensor B
Reference numeral 12 detects the hole for identification of the document holder and measures the amount of time that the hole is turned off.

The reading specification setting section B16 provided in the reading control section B14 includes the document holder recognizing section B1.
The necessary reading specifications are set based on the information of the document holder obtained from No. 5 and the image data generating unit B17 is notified.

The image data generating section B17 designates the reading mode of the reading section B13 based on the information obtained from the reading specification setting section B16, and the read output value obtained when the reading section B13 reads the original. Generate image data based on

The procedure for controlling the reading control section B14 is based on the control program stored in the control program section B18. The control program is provided from a computer-readable recording medium via a host device B02.

The control procedure will be described with reference to the flowchart shown in FIG. Reference numerals used in the description of each step are based on FIG.

In step S01, reading conditions are set prior to image reading. Details of the reading condition setting in step S01 are shown in FIG.

The details of the flow for setting the reading conditions shown in step S01 will be described with reference to FIG.

In step S21, the arithmetic and control unit B20 of the host device B02 specifies a specific document holder, and in step S21
Proceeding to step S22, a value for changing the reading start position is set.

In step S23, an instruction from the application program B22 is obtained, and a reading mode is set in a format determined by the driver program B21.

Further, in step S24, the arithmetic control unit B20 sets designation of a file or the like as a storage destination of image data obtained by reading a document sandwiched by the document holder.

If another specific document holder is specified in step S25, the flow returns to step S21 to specify the another specific document holder.

In step S26, the designated data of the specific document holder and the data of the reading specification for the specific document holder are transferred to the image reading apparatus B01.

In step S27, the image reading device B01
Receives the specified data of the specific document holder and the data of the reading specification according to the specific document holder,
Proceeding to step S28, the data is stored in the reading specification setting section B16.

Returning to FIG. 6, description of the control procedure of the image reading apparatus will be continued.

At step S02, the image reading device B01
The original to be read is inserted into the
The hop sensor B12 detects the inserted document and switches from OFF to ON.

In step S04, the feed roller is turned off.
To ON, and the inserted document starts to be conveyed at a constant speed.

In step S05, the hop sensor B12 is
If it is switched from N to OFF, the process proceeds to step S06, where the top sensor B11 is switched from OFF to ON, and further proceeds to step S08 to determine that the document has a document holder.

In step S08, the hop sensor B12 is
If the mode is switched from FF to ON, the process proceeds to step S09 to set reading specifications. The details of the procedure for setting the reading specifications executed in step S09 are shown in FIG.

The procedure for setting the reading specifications executed in step S09 will be described in detail with reference to FIG.

In step S31, the timing measuring section B15
In a, a time value during which the hop sensor B12 is in the OFF state is calculated, and the flow advances to step S32 to specify the document holder based on the time value.

In step S33, the reading specification setting section B1
Reference numeral 6 designates a read start time change value for the document, and the flow advances to step S34 to designate a read mode to be transmitted to the image data generation unit.

Returning to FIG. 6, the description of the control procedure of the image reading apparatus will be continued.

In step S10, the reading section B13 reads a white reference section (see FIG. 1) provided in the document holder.
The image data generation unit B17 generates a white reference and performs shading correction.

As described above, by generating the white reference by reading the white reference portion provided in the document holder, the white reference portion and the document to be read can always be read through the same clear sheet. Thus, for example, the fluctuation of the image data due to the difference of the lot of the clear sheet is eliminated.

In step S11, the reading unit B13 reads the original in the reading mode that has been set, and the process proceeds to step S12, where the image data generating unit B17 performs the above-described operation based on the reading output output from the reading unit B13. The image data is generated based on the read use set already.

In step S13, the image data generated in step S12 is transferred to the host device B02. When the image data is transferred, data indicating the type of the original document holder specified above is transferred to the host device along with the image data.

The host device recognizes the type of the transferred image data based on the data indicating the type of the specified document holder and executes necessary processing on the image data in accordance with an instruction of the application program, or A file for storing image data obtained by reading a document having the document holder is selected.

The processing of the image data is, for example, as described above, a handwriting in which the image data is sandwiched by a document holder having a clear sheet for blocking light of a specific wavelength, and the frame line of the dropout color is erased. When the image data includes image data obtained by reading characters, the application program that has received the image data includes a process of instructing execution of character recognition by an OCR program.

[0150]

According to the present invention, the following effects can be expected.

1) An image reading apparatus which has a reading section at a fixed position and reads a document conveyed at a constant speed, has an identification hole at a position corresponding to the hop sensor.
A document holder for holding the document to be read and transporting the document; and a document holder recognition unit for identifying the document holder based on a signal obtained by the hop sensor detecting the identification hole.

By taking this measure, it is possible to obtain an effect that the image reading apparatus is provided with a mechanism for detecting the document holder without adding a special sensor.

2) In the image reading apparatus, the document holder has a white reference portion for shading correction at a bonding portion thereof.

By taking this means, the image reading apparatus is provided with a white reference portion for shading corresponding to each document holder, so that the shading correction according to the state of the clear sheet provided in each document holder is performed. Is obtained.

3) In the above-described image reading apparatus, the document holder has a clear sheet for blocking light having the same wavelength as the dropout color specified in the document to be read.

By taking this measure, the image reading apparatus is provided with a color filter for deleting an image portion of a specific color defined by each document holder, so that the dropout color processing required at the time of reading can be performed. The effect of providing a means for performing in a simple manner is obtained.

4) In a control method of an image reading apparatus which has a reading unit at a fixed position and reads a document conveyed at a constant speed, when the document sandwiched by the document holder is inserted into the image reading apparatus, When the hop sensor detects the identification hole of the document holder and then the top sensor detects the leading edge of the document, the image reading indicates that the document is sandwiched by the document holder. The device recognizes.

By taking this means, the image reading apparatus recognizes that the document currently being conveyed is a document having a document holder, sorts the image data obtained by reading the specified document, and efficiently converts the data. The effect that processing can be performed is acquired.

5) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may be configured such that the document is sandwiched between the document holders. And changes the reading start position of the document held by the document holder.

By taking this means, the image reading apparatus recognizes that the document currently being conveyed is a document having a document holder, and generates image data in which the bonding portion of the document holder has been deleted in advance. Therefore, the effect of shortening the time required for reading is obtained.

6) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may:
Recognizing that the original is sandwiched by the original holder, prior to reading the image of the original, a white reference is created by a white reference unit provided in the original holder to perform shading correction.

By taking this means, the image reading apparatus executes shading correction based on the white reference read under the same conditions as the document currently being conveyed.
The shading correction is performed in accordance with the state of the clear sheet provided in the document holder, and the effect that the subsequent correction processing can be simplified is obtained.

7) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device is configured such that the document is sandwiched between the document holders. Then, the size of the identification hole is read to specify the document holder, and the image reading mode executed by the image reading apparatus is changed according to a predetermined setting.

By taking this means, the image reading apparatus recognizes the document sandwiched between the document holders, specifies the type of the document, and sets the reading mode according to the type of the document. An effect is obtained that the image reading operation can be performed smoothly.

8) In the above-described method for controlling an image reading device, when a document sandwiched by a document holder is inserted into the image reading device, the image reading device may include:
Recognizing that the document is sandwiched by the document holder, further reading the size of the identification hole, the document holder has a clear sheet that blocks light of a specific wavelength. Recognize that.

By taking this means, the image reading apparatus recognizes that the original holder deletes light of a specific wavelength and provides the image for reading, so that the dropout color processing is performed at the time of image reading. It is easy to execute, and the effect of reducing the load on the host device in the subsequent processing is obtained.

9) In the control method of the image reading device, when the document sandwiched between the document holders is inserted into the image reading device, the image reading device may:
Recognizing that the original is sandwiched between the original holders, further identifying the original holder by reading the size of the identification hole, and reading the original by the image reading apparatus according to a predetermined setting. Specify the storage location of the image data.

By taking this means, the image reading apparatus recognizes the document held between the document holders, specifies the type of the document, and stores the image data in the storage destination set according to the type of the document. Can be stored, so that the burden on the host device in the subsequent processing can be reduced.

10) In the control of the image reading apparatus which has a reading unit at a fixed position and reads an original conveyed at a constant speed, the original to be read, which is sandwiched between the original holders, is inserted into the image reading apparatus. When the hop sensor detects the identification hole of the document holder, the top sensor detects the leading edge of the document, and the image indicates that the document is sandwiched by the document holder. The procedure recognized by the reading device is stored in a computer-readable recording medium as a part of the control program of the image reading device.

By taking this means, it is possible to obtain an effect that the image reading apparatus is provided with a control procedure for recognizing a document held by the document holder.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a document holder according to a representative embodiment of the present invention.

FIG. 2 is an explanatory diagram of a document holder detecting mechanism according to a representative embodiment of the present invention.

FIG. 3 is an explanatory diagram of a document holder detection control system according to a representative embodiment of the present invention.

FIG. 4 is a timing chart of document holder detection according to a representative embodiment of the present invention.

FIG. 5 is a block diagram of an image reading apparatus according to a representative embodiment of the present invention.

FIG. 6 is a flowchart in an image reading apparatus according to a representative embodiment of the present invention.

FIG. 7 is a flowchart in an image reading apparatus according to a representative embodiment of the present invention.

FIG. 8 is a flowchart in an image reading apparatus according to a representative embodiment of the present invention.

FIG. 9 is an explanatory diagram of a document holder to which a conventional technique is applied.

FIG. 10 is an explanatory diagram of a document conveying system to which a conventional technique is applied.

FIG. 11 is a timing chart of a document conveying system to which a conventional technique is applied.

FIG. 12 is a block diagram of an image reading apparatus to which the related art is applied.

FIG. 13 is a flowchart in an image reading apparatus to which a conventional technique is applied.

FIG. 14 is a flowchart in an image reading apparatus to which a conventional technique is applied.

[Explanation of symbols]

 1: Document holder 2: Clear sheet 3: Base sheet 4: Laminated portion 5: Identification hole 6: White reference portion 7, 10: Document 11: Pick roller 12: Separation pad 13: First feed roller 14: Reading portion 15: Second feed roller 16: Hop sensor 17: Top sensor

Claims (10)

[Claims] An image reading apparatus having a reading unit at a fixed position and reading a document conveyed at a constant speed, wherein the document to be read has a hole for identification at a position corresponding to a hop sensor. An image reading device, comprising: a document holder for causing the document to be conveyed; and a document holder recognizing unit that identifies the document holder based on a signal obtained by the hop sensor detecting the identification hole. 2. The image reading device according to claim 1, wherein the document holder has a white reference portion for shading correction at a bonding portion of the document holder. 3. The image reading apparatus according to claim 1, wherein the document holder has a clear sheet that blocks light having the same wavelength as a dropout color specified in a document to be read. The image reading device according to claim 1. 4. A control method for an image reading apparatus having a reading unit at a fixed position and reading a document conveyed at a constant speed, comprising: when inserting a document sandwiched by a document holder into the image reading apparatus, The top sensor detects the leading edge of the document while the hop sensor is detecting the identification hole of the document holder, and the image reading device determines that the document is sandwiched by the document holder. A method for controlling an image reading device, characterized by recognizing. 5. The method for controlling an image reading device according to claim 1, wherein when the document held by the document holder is inserted into the image reading device, the document is held by the document holder. The method according to claim 4, further comprising recognizing that the document is being read and changing a reading start position of the document held by the document holder. 6. The method for controlling an image reading device according to claim 1, wherein when the document held by the document holder is inserted into the image reading device, the document is held by the document holder. The method according to claim 4, wherein a white reference is created by a white reference unit provided in the document holder and shading correction is performed prior to reading the image of the document. The control method of the image reading device according to the above. 7. The method for controlling an image reading device according to claim 1, wherein when the document held by the document holder is inserted into the image reading device, the image reading device is configured to hold the document by the document holder. And identifying the document holder by reading the size of the identification hole and changing the image reading mode executed by the image reading apparatus according to a predetermined setting. The method for controlling an image reading device according to claim 4. 8. The method for controlling an image reading device according to claim 1, wherein when the document held by the document holder is inserted into the image reading device, the image reading device causes the document to be held by the document holder. The document holder further recognizes that the document holder has a clear sheet for blocking light of a specific wavelength by reading the size of the identification hole. The method for controlling an image reading device according to claim 7. 9. The method for controlling an image reading device according to claim 1, wherein when the document held by the document holder is inserted into the image reading device, the image reading device causes the document to be held by the document holder. The document holder is identified by reading the size of the identification hole, and the storage destination in the host device of the image data read by the image reading device according to a predetermined setting. The method for controlling an image reading device according to claim 7, wherein the method is designated. 10. A recording medium for storing a control program for realizing a control procedure of an image reading apparatus having a reading section at a fixed position and reading an original conveyed at a constant speed, comprising: When a document to be read is inserted, the top sensor detects the leading edge of the document while the hop sensor detects the identification hole of the document holder. A computer-readable recording medium storing a procedure for the image reading device to recognize that the image is held by a holder.