JP3174094B2 - Image reading apparatus and image reading control method - Google Patents

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 and an image reading control capable of reading a document exceeding the size of a document table.
It is about the method .

[0002]

2. Description of the Related Art In recent years, the need for large-size originals such as maps, perspectives, and CAD drawings has been increasing in image reading apparatuses. Possible digital color copiers have also been proposed.

[0003]

However, there are many actual large-size originals exceeding the A1 size, such as the B1 size or the A0 size. Therefore, it is possible to propose an image reading apparatus having a larger platen. However, as the platen becomes larger, the platen glass bends under its own weight as shown in FIG. At the center, the distance between the image sensor and the document is different, adversely affecting the image, and the installation space is increased.

Further, it is possible to provide the reader unit with a sheet feeding mechanism for moving the scanner carriage only in the main scanning direction and moving the original in the sub-operation direction. Eliminates the limitation on the size of the original.

However, in an apparatus having such a type of reader, the document to be set must be in the form of a sheet, and reading is limited by the shape of the document. Further, in order to move the document in this manner, it is difficult to control the accuracy, and there is a disadvantage that the cost is disadvantageous.

An object of the present invention is to provide an image reading apparatus and an image reading control method capable of smoothly reading a document exceeding the size of a document table.

[0007]

In order to achieve the above-mentioned object, an image reading apparatus according to the present invention is provided with an image reading apparatus capable of reading an entire original in a plurality of times by scanning an original larger than the original table. Reading means for reading a placed document, and controlling an image forming apparatus for forming an image on a sheet, wherein a user places a document on the document table on the document table.
Control means for controlling the image forming apparatus so as to form a plurality of images read a plurality of times by the reading means on the same surface of a sheet through a work of changing a mounting position in the document; when reading is divided into the mounting position on the document table of the document in each time, respectively each time s
And a guiding means for guiding to the user.

According to another aspect of the present invention, there is provided a reading apparatus for reading an original placed on the original platen, the original being placed on the original platen and being capable of being read a plurality of times. An image reading control method for an image reading apparatus having means for reading an original on a platen by a user.
A step of controlling the image forming apparatus to form a plurality of images read in a plurality of times on the same surface of a sheet through a work of changing a mounting position on the document table; and dividing a large document into a plurality of times. When reading, a step of distinguishing the placement position of the document on the platen at each time for each time and guiding the document to the user is provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an external view of a digital color copying machine according to an embodiment.

As shown, the digital color copying machine 10 is roughly composed of two components.

That is, as a first roughly classified element, a document image is read in color at a position above the copying machine 10,
A color image scanner unit (hereinafter, abbreviated as “reader unit”) 12 that outputs digital color image data is provided. The reader unit 12 includes a controller unit 14 that performs various image processing of digital color image data and has a processing function such as an interface with an external device.

As a second major element, a reader unit 1 is provided.
2 and the controller unit 1 of the reader unit 12
4 is provided with a printer unit 20 for recording the color digital image signal output from the recording unit 4 on recording paper.

The reader section 12 reads image information from originals of various shapes and sizes, such as a three-dimensional, sheet-like, or large-size sheet-like original, which is placed downward on an original table (not shown) of the original holding plate 16. It also has a built-in mechanism for reading.

On one side of the upper surface of the reader section 12, an operation section 18 connected to the controller section 14 is provided. The operation unit 18 is used to display various information as a copying machine, input an operation instruction, and the like.

Further, the controller unit 14 includes an operation unit 18
It is configured to give an operation instruction to the reader unit 12 and the printer unit 20 according to the information input via the. Then, when it is necessary to perform complicated editing processing or the like, a digitizer or the like can be attached in place of the document holding plate 16 and this can be connected to the controller unit 14.
This enables more advanced image processing.

On the other hand, in the printer section 20, a full-color ink jet printer using a recording head of an ink bubble jet recording system as described in Japanese Patent Application Laid-Open No. 54-59936 is used. I have.

The above-mentioned two main elements are separable from each other, and are set so that they can be installed at locations separated from each other by extending the connection cable.

Hereinafter, the above-mentioned elements will be described in detail with reference to the drawings.

FIG. 2 is a sectional view schematically showing the internal structure of the digital color copying machine 10 shown in FIG. 1 when viewed from the side.

[Reader Unit 12] First, the configuration of the reader unit 12 of the copying machine 10 will be described.

In the reader section 12, the exposure lamp 2
2, an image of a document placed on a platen glass 28 by a lens 24 and an image sensor 26 capable of reading a line image in full color (in the embodiment, a CCD sensor is adopted), a projected image by a projector, Or
The image of the sheet-shaped document is read by the sheet feed mechanism 30.

Next, various kinds of image processing on the image information read by the reader section 12 are performed by the reader section 12 and the controller section 14. Thereafter, the read and image-processed information is transferred to the printer section 20. To be recorded on the recording paper.

[Printer Unit 20] Next, the printer unit 20
, The recording paper is a small fixed size (A4 to
Paper cassette 3 for storing cut sheets (up to A3 size)
2, or is selectively supplied from a roll paper 34 for recording in a large size (in the embodiment, A2 to A1 size).

Paper feed is started by a print start instruction from the controller unit 14, and is first conveyed to the position of the first paper feed roller 44 by the following route. In the embodiment, manual paper feeding (paper feeding from outside the apparatus) by manually feeding recording paper one by one from the manual feed slot 34 along the paper feeding unit cover 38 is also enabled.

When recording paper is fed from the paper feed cassette 32 mounted on the printer section 20, the paper feed cassette 32 is provided on the recording paper setting surface and the paper feed end of the paper feed cassette 32.
By driving the pick-up roller 40 for taking out the cut sheets one by one, the uppermost recording sheet set in the paper feed cassette 32 is taken out, sent to the cut sheet feed roller 42, and furthermore, The sheet is conveyed by the rollers 42 to the first sheet feeding roller 44.

On the other hand, in the case of the roll paper 34, the paper is continuously fed by the roll paper feed roller 46 and
The paper is cut into a standard length by 8 and transported to the position of the first paper feed roller 44 described above.

Similarly, when the paper is fed manually from the manual feed slot 36, the manually fed recording paper is conveyed to the first paper feed roller 44 by the manual feed roller 50.

Here, the pick-up roller 40, cut sheet feed roller 42, roll paper feed roller 46, first feed roller 44, and manual feed roller 50 are provided with a not-shown feed motor (DC servo in this embodiment). A motor is used.), And the on / off control of the rotational drive can be performed at any time by an electromagnetic clutch attached to each roller.

The recording paper selectively fed from one of the above-described paper feeding paths is conveyed to the first paper feeding roller 44. In order to remove the skew of the recording paper, a predetermined amount of paper loop is formed on the recording paper, and then the first paper supply roller 44 is turned on to rotate the recording paper. The recording paper is conveyed to the paper second roller 52.

A paper feed roller 64 provided above the recording head 56 and a paper feed roller provided below are provided between the first paper feed roller 44 and the second paper feed roller 52. 5
In order to perform an accurate paper feeding operation with the recording paper 2, the recording paper is slackened by a predetermined amount to form a buffer. The buffer is provided with a buffer amount detection sensor 54 for detecting a buffer amount as a slack amount of the recording paper. As described above, the buffer is always formed on the recording paper while the paper is being conveyed.
The load on the roller 52 can be reduced, and an accurate paper feeding operation can be performed.

As described above, in the printer unit 20 having the recording paper transport system, when printing is performed by the recording head 56, the scanning carriage 58 on which the recording head 56 is mounted is placed on the carriage rail 60. Is reciprocated in the front and back directions of the drawing by the scanning motor 62 to scan the recording paper in the main scanning direction. Then, in the forward scan, an image is printed on the recording paper by the recording head 56, and in the backward scan, a feed operation in the sub-scanning direction for feeding the recording paper by a predetermined amount by the paper feed roller 64 is performed.

Here, the feed amount along the sub-scanning direction is:
The length is defined as a constant movement amount to be described later. Here, a length corresponding to the width of the recording head 56 in the sub-scanning direction, that is, although not shown, the recording head 5 of the platen 74 is not illustrated.
6, and is set to a length corresponding to the arrangement width of the suction holes. The suction holes are for bringing the recording paper into close contact with the platen 74. Further, the scanning motor 62 during the homeward scanning
In the recording paper drive control according to, the buffer amount is detected via the buffer amount detection sensor 54, and is controlled so that the buffer amount always becomes a predetermined buffer amount. Then, the printed recording paper is discharged to the paper discharge tray 66, and the above-described series of printing operations is completed.

[Configuration of Scanning Carriage System] Next, the configuration around the scanning carriage 58 will be described in detail with reference to FIG.

In FIG. 3, reference numeral 68 denotes a paper feed motor as a drive source for intermittently feeding the recording paper in the sub-scanning direction. The paper feed motor 68 can arbitrarily set and change the amount of rotation, and is configured to drive the second paper feed roller 52 via the paper feed roller 64 and the second paper feed roller clutch 70. ing.

The above-described scanning motor 62 is provided as a driving source for causing the scanning carriage 58 to reciprocally scan in the main scanning direction indicated by arrows A and B via the scanning belt 72. In the embodiment, a pulse motor is used for the paper feed motor 68 and the scanning motor 62 because accurate paper feed control at an arbitrary feed amount is required. In the embodiment, a paper pressing member (not shown) is provided at a position facing the lower end of the platen 74,
The paper holding member fixes the recording paper to the platen while the scanning carriage 56 is scanning, so that the recording paper is controlled so as not to move.

When the recording paper reaches the second paper feed roller 52, the second paper feed roller clutch 70 and the paper feed motor 68 are turned on, and the leading end of the recording paper is held between the pair of paper feed rollers 64. The platen 74 is transported until the operation is completed. Then, the transported recording paper is detected by a paper detection sensor 76 provided on the platen 74 to be transported past the platen 74, and the sensor information is used for position control, jam control, and the like.

When the leading end of the recording paper reaches the paper feed roller 64, the paper feed second roller clutch 70 and the paper feed motor 6
8 are turned off, and then the space inside the platen 74 is made negative pressure by the activation of a suction motor (not shown), and the suction operation is started. By such a suction operation, the recording paper is brought into close contact with the platen 74. At this time, the above-mentioned paper holding member also fixes the recording paper to the platen.

Here, prior to the image printing operation on the recording paper, the scanning carriage 58 is moved to the position where the home position sensor 78 is provided, and then the forward scanning is performed in the direction of arrow A. Will be

In this forward scan, each of the inks of cyan “C”, magenta “M”, yellow “Y”, and black “K” is ejected from the recording head 56 from a predetermined position to record (print) an image. Is performed. Then, after completing the image recording operation for a predetermined length along the main scanning direction,
The driving direction of the scanning motor 62 is reversed, and the scanning carriage 5
8 is moved in the reverse direction, that is, in the direction indicated by the arrow B to start the backward scanning. The scanning motor 62 is driven in reverse until the scanning carriage 58 returns to the position where the home position sensor 78 is provided.

During the backward scanning, the paper feed motor 6
8, the paper feed roller 64 is rotated, and the paper feed operation is performed by the length along the sub-scanning direction (the width of the print head 56) recorded by the print head 56 indicated by the arrow C. In the embodiment, the paper feed amount, that is, the movement amount in the sub-scanning direction is not limited to the above-described constant movement amount for the width of the recording head 56, but is determined by the final line width. It may be set to the amount of movement.

In the embodiment, the recording head 56 is an ink jet nozzle, and a total of 256 nozzles are Y,
Assembled for each color of M, C, K.

On the other hand, when the scanning carriage 58 stops at the home position defined by the home position sensor 78, the recovery operation of the recording head 56 is performed. This recovery operation is a process for performing a stable printing operation, and is a process for preventing non-uniformity at the time of the start of ejection caused by a change in viscosity of ink remaining in the nozzles of the print head 56 and the like. In this process, paper feed time, internal temperature,
A pressurizing operation is performed on each nozzle of the recording head 56 in accordance with a pre-programmed condition such as a discharge time, and an idle discharge operation of ink is performed from each nozzle.

By repeating the operation described above, desired image recording is performed over the entire surface of the recording paper.

[System Configuration] Next, the processing and control of image signals by the control system in the digital color copying machine 10 of this embodiment will be described with reference to FIG.

In FIG. 4, reference numeral 100 denotes a main CPU for controlling the entire apparatus.
Has a printer control CPU 1 that controls the operation of the printer.
02, reader control CPU 10 that controls the reading control operation
4. a main image processing unit 106 that processes an image display operation;
An operation unit 108 as an input unit by an operator is connected. The operation unit 108 shown in FIG.
It corresponds to the unit 18. Here, printer control C
The PU 102 and the reader control CPU 104 control the operations of the printer unit and the reader unit, respectively.
100 is set in a master-slave relationship.
The above-described main image processing unit 106 is an image processing unit that performs edge enhancement smoothing, masking, black extraction, binarization, trimming, and the like.

A synchronous memory 110 is connected to the printer control CPU 102 and the main image processing unit 106. The synchronous memory 110 is for absorbing the time variation of the input operation and correcting the delay due to the arrangement of the recording heads described above. The output of the synchronous memory 110 is connected to the recording head 56. The printer control CPU 102 is connected to a printer unit drive system 114 that controls input driving of the printer unit.

On the other hand, the reader control CPU 104 includes an input meter image processing unit 116 for performing necessary correction processing in a reading system such as shading correction and color correction γ correction, and a reader unit driving system 118 for controlling input driving of the reader. It is connected. Further, a CCD line sensor 120 is connected to the input system image processing unit 116.
Reference numeral 16 is connected to the main image processing unit 106.

As described above, in the embodiment, the reader section 12 includes the main CPU 100, the reader control CPU 104,
It comprises a main image processing unit 106, an operation unit 108, an input system image processing unit 116, a reader unit driving system 118, and a CCD line sensor 26 as an image sensor. Further, the printer unit 20 includes a printer control CPU 1
02, a synchronous memory 110, a recording head 56, and a printer drive system 114.

Next, the configuration of the main image processing unit 106 and the input system image processing unit 116 which are particularly characteristic parts of the reader unit 12 will be described with reference to FIG.

In FIG. 5, reference numeral 121 denotes an input masking processing unit, and reference numeral 122 denotes a log conversion processing unit. These two processing units 121 and 122 constitute an input image processing unit. Reference numeral 120 denotes an editing processing unit which controls each processing unit of the main image processing unit 106, and reference numeral 120a denotes a parameter switching flag storage area built in the editing processing unit. Reference numeral 123 denotes a color conversion processing unit that performs color conversion processing of an image signal, reference numeral 124 denotes an output masking processing unit that performs masking processing, reference numeral 125 denotes a γ correction processing unit that performs γ correction, and reference numeral 126 denotes edge enhancement processing that performs processing such as edge enhancement smoothing. Department,
127, a binarization processing unit which performs binarization processing of an image;
Is a black extraction unit that creates a black component (K) from C, M, and Y data. In the embodiment, the main image processing unit 106 is configured by the above configuration. Here, a data set for each image processing unit is stored in the main CPU 100 and the reader unit CPU 1.
04 via the data bus 132.

Each image processing unit of the embodiment has two data banks, and selects one of the data banks in accordance with control signals 128 to 131 and 135 to 137 from the editing processing unit 120. Image processing according to the parameters set in the data bank. The selection pattern of each data bank of each image processing unit is
The data is set from the main CPU 100 via the data bus 132 in accordance with the image processing to be executed.

<First Embodiment> Next, the main CPU 100 and the reader control C will be described in accordance with the flowcharts of FIGS.
A copy sequence controlled by the PU 104 and the printer control CPU 102 will be described.

First, in step S11 shown in FIG. 6, an arbitrary copy mode such as a document size, a print size, a magnification, and image processing is set by the user through the operation unit 108. This setting can be reset until the "start button" is pressed in the next step S12 and the copy operation is started. Thereafter, when copying is started in step S12, the process proceeds to step S13, in which a copy area is set according to the document size specified by the user.

Next, the details of this setting process will be described with reference to the flowchart shown in FIG.

In step S41, it is determined whether or not the document size is larger than the document table.
Proceed to 48 to set as normal copy mode. However, in the case of YES, the process proceeds to step S42, and the divided reading mode is set. Next, in step S43, the document is divided in the X direction, and the number of divisions and the division position are calculated. For example, as shown in FIG. 9, when an m × n document larger than the a × b document table is divided on the document table having the size of a × b, the document is divided into _two of m ₁ and m _{2 in} the X direction. Divide into two. Here, the division position m ₁ is set equal to the size of the document table in the X direction, that is, m ₁ = a. Then, in step S44, the original is similarly divided into n ₁ and n ₂ in the Y direction. This division position n ₁ is Y
Is set equal to the size of the original platen in the direction, that is, n ₁ = b. As a result, the original is S ₁ = m ₁ × n ₁ , S ₂ =
m ₂ × n ₁ , S ₃ = m ₁ × n ₂ , S ₄ = m ₂ × n ₂
Will be divided into two areas.

In step S45, the number of divisions in the Y direction is registered as the number of copies. In the case of the example shown in FIG. 9, in this example, the areas S1 and S2 and the areas S3 and S4 are printed on one roll paper, respectively, so that the number of copies is two. In a succeeding step S46, the user is instructed to arrange the original. Specifically, a message as shown in FIG. In the message shown in FIG. 10, there is a corner 1 which is a name predetermined for each corner of the document table as shown in FIG.

Next, when the document is placed by the user and the "OK key" is turned on in step S47, the processing in this subroutine ends, and the flow advances to step S14 in FIG. In step S14, various image processing parameters are set according to the mode set in step S11. Then, in step S15, initial settings necessary for the copy operation in the reader unit 12, that is, shading correction, light amount adjustment, and the like are performed. Subsequent step S
At 16, the printer unit 20 performs initialization necessary for the copy operation, that is, paper feed and head recovery operation.

In step S17, after confirming that the reader unit 12 and the printer unit 20 are in the scan ready state, a start command is issued to each of the reader unit 12 and the printer unit 20 at the timing for synchronizing the reader unit 12 and the printer unit 20 in step S18. publish. In step S19, the reader unit 12
And that the main scanning of the printer unit 20 has started, and then proceeds to step S20. Then, it is determined whether or not the divided reading mode is set in the above-described step S13, and in the case of YES, the process proceeds to step S21, and it is determined whether or not the currently scanned line corresponds to the divided position. This process, in the case of FIG. 9, X-direction end of S1, i.e., a process for determining whether or not corresponding to the position of m _1. As a result, in the case of YES, the process proceeds to step S22, and the division flag is set to on.
However, if NO in steps S20 and S21 described above, the process proceeds to step S23, and the division flag is set to off.

When the setting of the division flag is completed, the process proceeds to the next step S24, where information necessary for the next scan, such as the sub-scan feed amount, is transmitted to the reader unit 12 and the printer unit 20. Next, in step S25, the process waits for the end of the main scan, and when it is completed, the process proceeds to step S26, in which it is determined whether all the line scans have been completed, that is, whether one copy has been completed. Here, in the case of NO, the process proceeds to step S27 to instruct the reader unit 12 and the printer unit 20 to start the sub-scanning operation. Then, in the next step S28, it is determined whether the division flag is on or off. If it is off, the process returns to step S17. If it is on, the process returns to step S17.
Go to 29. Here, the reader unit 12 and the printer unit 20
Is instructed to temporarily stop the copy operation. In step S30, the user is instructed to rearrange the original. For example, when the printing of the area S1 in FIG. 9 is completed, a message as shown in FIG. 12 is displayed to copy the next area S2. In step S31,
After the document is rearranged, the process waits for the user to press the “OK key”, and if pressed, proceeds to step S32. Here, the reader carriage is moved to the head position of the area to be copied next. That is, as shown in FIG. 13, the area to be copied is S2, and the original is arranged with the lower left corner of the original plate aligned with the corner 2 in step S30 described above.
It is a process of moving to the position of m _2. When the movement is completed, the process proceeds to step S33, and after the division flag is cleared, the process returns to step S17.

On the other hand, if it is determined in step S26 that the scanning for all lines has been completed, that is, it has been determined that copying for one sheet has been completed, the flow advances to step S34 to perform the paper discharging operation of the printer. Then, in a step S35, it is determined whether or not the copying for the set number has been completed. For example, if the copying is completed up to the area S4 in FIG. 9, there is no other area to copy, so the determination is YES. Here, if NO is determined, the process proceeds to step S36, and after the paper feeding operation of the printer is performed, the process proceeds to step S28 described above. If the determination is YES, the copy operation is terminated.

After the copying of the areas S1 and S2 is completed, the copying of the area S3 is continued. At this time, a display as shown in FIG. 17A is displayed in step S30, and the reader carriage is controlled so that the area of S3 is read for the document thus arranged. Similarly, when the copying of the area S3 is completed and the copying operation of the area S4 is started, a display as shown in FIG. 17B appears, and the reader carriage is controlled to read the area S4. As described above, according to the present embodiment, there is an effect that a document having a size exceeding the document table can be read smoothly without using a complicated mechanism.

<Second Embodiment> Next, a second embodiment according to the present invention will be described.
Will be described with reference to the drawings. In the above-described first embodiment, the division position is fixed to the end of the document table. However, in the second embodiment, the division position is arbitrarily set.

As in the case of the first embodiment, this is a case where an original having a size larger than the a × b original platen is read.
As shown in the figure, the document is read twice in the X direction and twice in the Y direction, divided into four areas. In the figure, a broken line indicates a division position. In this example, since an image does not exist exactly at the position m _{1 in} the X direction and the position n _{1 in} the Y direction, if the division position is brought to this part, the original At the time of rearrangement, even if a shift occurs, the image does not need to be affected.

When the user sets the division position, it is performed in the copy mode setting processing in step S11 in FIG.

[0066]

As described above, according to the second embodiment, there is an effect that the division position when reading the original and the setting method can be freely set.

<Third Embodiment> Further, the third embodiment according to the present invention
Will be described with reference to the drawings. In the first and second embodiments described above, an image read from a document having a size larger than the platen is printed as it is, but in the third embodiment, the layout of the printout can be freely set. It can be set to.

For example, there is a case where an image as shown in FIG. 15A is laid out in a manner as shown in FIG. 15B. When such a mode is set, first, the image of the area 4 is read and printed, and when the reading of the area 4 is completed, in order to read the area 1, in step S 30 of FIG. Is instructed to rearrange the original. Thereafter, control is performed to read area 4.

Thus, according to the third embodiment, a desired layout process can be performed by reading a document having a size larger than the document table.

In each of the above-described embodiments, the operation unit 10
Although an LCD display is assumed as 8, the present invention is not limited to this as long as it can instruct the user to rearrange the originals and the like.

In each embodiment, a digital color copying machine has been described as an example. However, the present invention can be applied to a case where a reader alone is used as a reading device and connected to a computer. Of course, the signal to be treated does not need to be color.

The present invention may be applied to a system constituted by a plurality of devices, or may be applied to an apparatus constituted by one device. Needless to say, the present invention can be applied to a case where the above is achieved by supplying a program to a system or an apparatus.

[0074]

As described above, according to the present invention,
Smoothly read - imaging a document that exceeds the platen size
It can be output by the device and
To reduce the size and cost of the equipment.
Te, it is possible to Rukoto improved operability for productivity and user.

[Brief description of the drawings]

FIG. 1 is an external view of a digital color copying machine according to an embodiment.

FIG. 2 is a cross-sectional view showing an internal configuration of the digital color copying machine in the embodiment.

FIG. 3 is a diagram illustrating a configuration of a scanning carriage in the embodiment.

FIG. 4 is a block diagram illustrating a configuration of a control system according to the embodiment.

FIG. 5 is a block diagram illustrating a configuration of a main image processing unit and an input system image processing unit;

FIG. 6

FIG. 7

FIG. 8 is a flowchart illustrating a copy sequence according to the first embodiment.

FIG. 9 is a diagram illustrating division of a document in the first embodiment.

FIG. 10 is a diagram showing a message for instructing document placement on a document table.

FIG. 11 is a diagram showing each corner of a document table.

FIG. 12 is a diagram showing a message instructing a document placement on a document table.

FIG. 13 is a diagram for explaining movement to a division position.

FIG. 14 is a diagram illustrating division of a document in the second embodiment.

FIG. 15 is a diagram showing a printout layout in the third embodiment.

FIG. 16 is a diagram for explaining a problem in the conventional example.

FIG. 17 is a diagram showing a message instructing a document placement on a document table.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/38-1/393 G06T 1/00 400-460 H04N 1/04-1/20

Claims (4)

(57) [Claims] A reading unit configured to read an original placed on the platen, the image forming unit forming an image on a sheet; An apparatus for controlling an apparatus, wherein the original of the original on the original platen by a user
Control means for controlling the image forming apparatus so as to form a plurality of images read a plurality of times by the reading means on the same surface of a sheet through a work of changing a mounting position on a table; When scanning in multiple scans, the placement position of the original on the platen in each scan is distinguished for each scan
And a guiding means for guiding a user. 2. The display device according to claim 1, wherein the guidance unit performs a guidance display.
The image reading device according to claim 1 , further comprising a step . 3. The image reading apparatus according to claim 1, wherein the guide unit guides each corner of the document to hit each corner of the platen each time. 4. An image reading control method for an image reading apparatus, comprising: reading means for reading a document placed on a platen, the document being capable of reading a document larger than the platen a plurality of times and reading the entire document. The original on the platen by the user on the platen
A step of controlling the image forming apparatus to form a plurality of images read in a plurality of times on the same surface of the sheet through a work of changing the mounting position, and when reading a large document in a plurality of times, Distinguish the placement position of the original on the platen at each time
And providing a guide to the user.