JPH08161456A - Electronic file device - Google Patents

Abstract

PURPOSE: To synthesize read image data on a front side and a rear side of a double side original into one screen automatically when the synthesis is possible and to register the synthesized data by providing a means or others that synthesize the image data on the front side and the rear side in an image memory as image data of one screen when it is detected that the number of scanning lines of a received image is the specified scanning line number or below and that registers the synthesized data into a data storage device to the device. CONSTITUTION: Image data on a front side and a rear side of an original are read by an image memory 8 from a both side image input device 7 under the control of an image input control section 6. The image data on the front side and the rear side are simultaneously read in the image memory 8. When a read operation is finished, the number of scanning lines of the read image is recorded in the image input control section 6. Then the image input control section 6 acquires the number of the scanning lines of the read image and compares the acquired number of scanning lines with the number of setting scanning lines. When the number of the scanning lines of the read image is the setting number of scanning lines or below through the discrimination of the comparison result, the image data on the front side and the rear side are synthesized and the synthesized data are registered in a recording medium driven by an image data storage device 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic file device comprising an image input device for reading images on the front and back sides of a document and a system main body for controlling the registration of the read image data in an image data storage device. .

[0002]

2. Description of the Related Art In recent years, system main bodies such as workstations and personal computers, image reading devices such as scanners, image data storage devices such as magneto-optical disk devices, floppy disk devices and hard disk devices, CRT displays, An electronic file device including an image display device such as an LCD display is often used.

In particular, a double-sided scanner may be used as an image reading device in order to increase the processing speed and improve the work efficiency. If the double-sided scanner is used, the front side and the back side of the original are automatically read by one-time reading of the original, so that the work efficiency on the operation side is improved. By the way, if the front and back images are registered as one screen, the next time this image is read, the front information is displayed first, and then the back image is displayed. Therefore, when reading the registered image, images for two planes are displayed.

When registering securities, checks, etc. in an electronic file, it is common sense to always register the front and back images. Therefore, the total of the display image areas of the front side image and the back side image is the specified size (A4, B5,
If it is smaller than (letter etc.), it is more convenient to display the front and back sides on one screen at the same time. From such a point of view, in the case of a document having a size smaller than a certain size, an electronic filing device capable of registering front and back images on one screen has been created.

[0005]

However, in such an apparatus, when it is known in advance that a document of a certain size or smaller is read, the process of combining the front surface and the back surface is continuously executed. Even if it was possible, the operation was not guaranteed when a series of originals of undefined size was read. Extract a certain size of original from a series of originals,
It is possible to register all at once, but in office management, the arrangement of manuscripts may be important management information.

[0006]

In order to achieve the above-mentioned object, the present invention is necessary for an image input device capable of inputting both-sided images of a document, and for reading from the image data of the document by the device. The image input control unit capable of recording the number of scanning lines, the image memory for temporarily storing the image data input by the image input device, and the image data stored in the image memory are stored in the recording medium. In an electronic file device having an image data storage device to be registered, the number of scanning lines of the input image on the front surface of the document recorded in the image input control unit after the double-sided image of the document is input by the image input device and the number of scanning lines in advance. When the number of scanning lines of the input image is detected to be equal to or less than the prescribed number of scanning lines by the means for comparing with the set number of prescribed scanning lines, the image data of the surface is detected. And it is the back side image data are synthesized on the image memory as image data for one screen that a means for registering the data storage device.

Further, when the input of the front surface of the original is completed, the scanning lines of the input image are compared with a preset standard scanning line number, and the scanning line number of the input original is equal to or larger than the standard image scanning line number. In this case, a means may be provided for continuously synthesizing the image data of the back side with the image data of the image data of the front side stored in the image memory up to the number of effective scanning lines.

Furthermore, when the number of input image scanning lines on the front side of the document is equal to or larger than the specified number of image scanning lines, a means for allowing the operator to select whether to combine and register the image data of the front and back sides is provided. It may be provided.

Further, means for displaying the input image on the front side and the input image on the back side of the document, means for designating the display position of each input image by the means, and the image from the display position designated by the means Means for determining the position on the memory where the image data is stored may be provided.

Further, means for designating a reading start position and a reading end position of the document by the image input device, and an input image scanning line for inputting an image from the reading start position and the reading end position designated by the means. A means for calculating the number may be provided.

Furthermore, an image input device capable of inputting both-sided images of a document and an image capable of recording the number of scanning lines required for reading from the image data of the document input by the device. An electronic filing device having an input control unit, an image memory for temporarily storing the image data input by the image input device, and an image data storage device for storing and registering the image data stored in the image memory in a storage medium. In order to store the image data of both sides of the original from the number of scanning lines of the input image on the front side of the original recorded in the image input control unit after inputting the double-sided image of the original by the image input device. The calculating means for calculating the number of scanning lines, the means for detecting the number of scanning lines that can be stored in the image memory, and the number of scanning lines detected by the means are calculated by the calculating means. When the number of scanning lines is larger than the calculated number of scanning lines, the front side image data of the original is stored continuously to the image data of the surface which is already stored in the image memory. The image data of the front side stored in the image memory is registered in the image data storage device as the image data of one screen, and a unit for storing the image data of both sides of the original in the image memory may be provided. Good.

[0012]

According to the electronic filing apparatus of the present invention, the number of scanning lines of the input original recorded in the image input control unit after the double-sided images of the original are input is compared with the preset number of specified image scanning lines. Therefore, it is not necessary to determine in advance that the original is a document whose front and back images can be combined. Further, when it is detected that the number of scanning lines of the input document is less than or equal to the specified number of image scanning lines, the image data of the front side and the image data of the back side are combined, so that the image information of the front side and the back side is recorded in one screen. can do.

Further, when the input of the front surface of the original is completed, the scanning lines of the input original are compared with a preset number of prescribed image scanning lines, and if the number of scanning lines of the input original is equal to or greater than the prescribed number of image scanning lines. If so, the image data of the back side is continuously combined with the image data up to the effective scanning line number of the image data of the front side stored in the image data storage unit, so that the images of the front side and the back side are not included in one image. Even if there is no such information, part of the information on the front surface and the back surface can be displayed on one image surface.

Further, when the number of scanning lines of the input document is equal to or larger than the number of scanning lines of the specified image, the operator is allowed to select whether to combine and register the front side and the back side. It is possible to deal with both the case where you want to register as and the case where you want to register separately.

Furthermore, since the positions at which the front side image and the back side image are displayed are designated, the display positions of the front side image and the back side image can be adjusted so that they are easy to see. At this time, since the position where the image data is recorded in the image data recording unit is determined from the display position, the front side image and the back side image should be displayed on the display device at the specified position even when the recorded image data is reproduced. You can

Further, since the reading start position of the input image is designated, only the image of the necessary portion can be read, and the number of scanning lines of the input image when the image is input is calculated from the designated reading start position. It is possible to know the number of scanning lines required for.

Further, after the double-sided image of the original is input, the number of scanning lines required for recording the double-sided image can be calculated from the number of scanning lines of the input original recorded in the image input control section.
The number of scan lines that can be stored in the image memory can also be detected. The number of scan lines that can be stored in the detected image memory is
When the number of scanning lines required to record a double-sided image is larger than the number of scanning lines required for recording a double-sided image, the double-sided image data of the input original can be continuously recorded to the image data already recorded in the image memory. Image data can be recorded.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic file device which is an embodiment of the present invention. A system control unit 1 that manages the entire system, a system memory 2 that stores data necessary for system management, an image processing unit 3 that processes input images, an optical disk device that registers and holds image data, and the like. A drive control unit 4 that controls the image storage device 5 to write and read image data to and from a storage medium such as an optical disk, an image input control unit 6 that controls the double-sided image input device 7, and a document transport surface inside. Facing both sides of the light source and line image sensor (C
A double-sided image input device 7 having image input means such as a CD,
An image memory 8 capable of storing and holding image data for both sides input from the double-sided image input device 7, a display device 9 for displaying the image data, and a display device control unit 1 for controlling the display device 9.
0, an instruction device 11 for inputting information such as a document name and a creator to image data, an instruction device control unit 12 for controlling the instruction device, and a system bus 13 for transmitting data and transmitting control signals. .

Next, an image reading operation by the filing device of this embodiment will be described. FIG. 2 is a flow chart for explaining the operation of the embodiment (first embodiment) of the invention described in claim 1. Here, S100 means step 100, and will be expressed as follows.

After the document is set on the double-sided image reading device 7, before the start of reading, it is determined in S100 whether the double-sided registration or the single-sided registration is selected by the operator. This selection is performed by inputting a prescribed function selection number or code from the instruction device 11 on the "selection screen" displayed on the display device 11. If it is determined that the double-sided registration has not been selected, the process proceeds to S111 and normal registration (one-sided registration) is performed. When it is determined that the double-sided registration is selected, the process proceeds to the pre-processing of S101 that is subsequently performed, and the image input control unit 6 checks the double-sided image input device 7 for operation confirmation, Recording of image data, such as erasing the data in the image memory 8 to read the data, and securing a storage area in a recording device (optical disc or the like) driven by the drive 5 to record the image data Performs a series of pretreatments required for.

Then, the reading conditions such as the size of the image data (A4 size, B5 size, etc.) and the reading density at the time of registration are set in S102. When the size of the image data to be registered here is set, the specified scanning line required to read the original is determined for that size.

In step S103, reading of the original is started.
At this time, the image data of the front surface and the back surface of the document is transferred from the double-sided image input device 7 to the image memory 8 under the control of the image input control unit 6.
Read in. The image data of the front surface and the back surface are simultaneously captured in the image memory 8. At the time when the reading operation is completed, the number of scanning lines of the read image is recorded in the image input control unit 6. In S104, the number of scanning lines of this read image is acquired. In S105, the scanning lines of the read image acquired in S104 are compared with the prescribed number of scanning lines set in S102. The series of operations from S102 to S105 is performed according to claim 1 "The number of scanning lines of a read image recorded in the image input control unit after inputting a double-sided image of a document and a predetermined regular image scanning line. Means for comparing with numbers ".

In S106, the subsequent processing operation is determined based on the result of the comparison made in S105. If the number of scanning lines of the input image is equal to or less than the specified number of scanning lines set in S102, the process proceeds to S107. In S107, the front side image data and the back side image data are combined. In S108, the image data synthesized in S107 is stored (registered) in the recording medium (optical disk or the like) driven by the image data storage device 5. Here, in this embodiment, the combination of the image data on the front surface and the image data on the back surface is performed on the image data captured in the image memory 8.

FIG. 10 is a schematic diagram of a memory map showing how image data is stored in the image memory 8. The image data of the front surface and the back surface read from the image reading device 6 are separately stored in the memory areas for two surfaces, as shown in FIG. Here, memory address 20 (X000) to memory address 21
Up to (XMMM) corresponds to the number of scanning lines required to store the surface data of the input image. Memory address 20
From (X000) to the memory address 22 (XNNN) corresponds to the specified number of scanning lines. When the image data registered on the two sides of the front side image and the back side image is edited like the image data of one screen, it is stored as data for one image as shown in FIG.

Returning to FIG. 2, if the number of scanning lines is equal to or larger than the specified number of scanning lines set in S102, the image data of the front surface is stored in the storage medium of the drive 5 in S109, and then S1.
At 10, the back side image data is stored in the storage medium of the image data storage device 5.

Next, an embodiment of the invention described in claim 2 will be described. FIG. 3 is a flowchart showing the operation of the embodiment of the invention described in claim 2. The processing from S200 to S208 is the same operation as S100 to S108 in FIG. In this embodiment, when the number of scanning lines of the input image is equal to or larger than the specified number of scanning lines in S206, the process of S207 is performed. In step S207, the surface image data is made valid up to the specified number of scanning lines, and the data for the subsequent scanning lines is erased. Then, in S208, the image data of the back side is converted into
After erasing in 7, write continuously. In this way 1
After being edited into the image data of the screen, it is stored in the storage medium in S210. In the present embodiment, even if the number of scanning lines on the input screen is equal to or greater than the specified number of scanning lines, image data in which the front surface and the back surface are combined is stored. FIG. 11 shows the schematic diagram of the composite image in the case where the number of scanning lines on the input screen is equal to or larger than the specified number of scanning lines in this embodiment.

Next, an embodiment (third embodiment) of the invention described in claim 3 will be described with reference to the flowchart of FIG. Here, the processing from S300 to S301 is the same as the processing from S100 to S101 in FIG. S
In 302, the type of image composition is selected.

In this embodiment, the screen 14 shown in FIG. 13 is displayed on the display device 9. When the pointing device can be used on the display device 9, the pointer can be moved to a menu on the screen and the instruction button of the pointing device can be pressed to select the type of image composition. When the display device 9 is composed of a touch panel, the type of image composition can be selected by directly touching the display position of the menu on the screen. It is also possible to select a type of image composition by inputting a predetermined code or number from the instruction device 11.

From S303 to S307, S1 in FIG.
The same processing from 02 to S106 is performed. In S307, it is determined whether or not the number of scanning lines of the input image is equal to or larger than the specified number of scanning lines. S3
In step 10, the next process is determined according to the type of image composition designated by the operator in step S302. When image composition is selected, the processing of S313 and S315 is performed.
S313 and S314 are the same processes as S209 and S210 of FIG. If the images are not combined, S311 and S3
12 processing is performed. S311 and S312 are S10 of FIG.
9 and the same process as S110. If the number of scanning lines of the input image is equal to or less than the specified number of scanning lines in S307, S107 of FIG.
And the same process as S108 is performed in S308 and S309.

Next, an embodiment (fourth embodiment, fifth embodiment) of the invention described in claim 4 will be described. 5 and 6 are flow charts for explaining the processing of the fourth and fifth embodiments. According to these embodiments, the display positions of the front image and the back image can be selected. First, in S400, the position at which the front side image and the back side image are displayed when the image obtained by combining the front side image and the back side image is displayed is designated. In this embodiment, the screen 15 shown in FIG. 14 is displayed on the display device 9. The operator selects a desired display position from a large number of menu buttons 16 displayed on this screen. The method of selection is the same as that described in the third embodiment with reference to FIG.

In S401 of FIG. 5, the address of the image memory for storing the front side image and the rear side image is calculated from the designated display position. In this embodiment, the front side image data and the back side image data are displayed at the positions designated by the operator. For that purpose, the image data must be stored in a predetermined place in the image memory 8. 12
Is an example of a memory map of the image memory 8 for displaying the front side image and the back side image at the designated positions.

As shown in FIG. 12, for example, in the case of "top justification (front and back separate)", blank image data of a constant width is stored successively to the front image data and the back image data. When displaying an image, the display device control unit 10
However, since the image is generated in the state of the memory map described above,
The front side image and the back side image can be displayed at the display position specified in S400 of FIG. In this embodiment, the processing from S402 to S407 is the first embodiment, S10 in FIG.
This is the same as the processing from 3 to S106 and S109 and S110. In S408, the front side image data is written in the pointed position of the image memory 8, and in S509, the back side image data is written in the same pointed position. And S4
In step 10, the written front and back image data are combined and registered in the image data recording device 5.

FIG. 6 shows S500, S501 and S50.
8, S509, S510 are the same as S400, S401 and S408, S409, S410 of FIG.
It is a flowchart explaining the 5th Example from which the processing from 2 to S409 is the same as the processing of S203 to S206 of FIG. 3 which is 2nd Example, and S209, S210.

Next, an embodiment of the invention described in claim 5 will be described. 7 and 8 are flowcharts for explaining the processing of the sixth and seventh embodiments. In these embodiments, the reading start position of the input document can be arbitrarily set within a certain range. That is, in the sixth embodiment shown in FIG. 7, the operator can specify the reading start position and the end position of the document in S600. At this time, in this embodiment, the screen shown in FIG. 15 is displayed on the display device 9.
The operator uses a pointing device etc. on this screen to specify the designated line 1 displayed in the center of the screen.
8 and the designation line 19 are moved to designate the reading start position of the input document.

In this embodiment, the processing before reading the original document described in the first embodiment and the like is not described, but
It is assumed that the processing is already completed before the processing of S600. Subsequently, in step S601, the required number of scanning lines is calculated from the document reading start position and the end position designated in step S600 and the specified number of scanning lines set in the process before step S600. As a calculation method, the display device 9
The vertical length of the screen frame 23 indicating the size of the specified image of the screen 17 displayed on the screen is associated with the specified number of scanning lines, and the vertical direction of the screen sandwiched between the specified line 18 and the specified line 19 The length is taken as the number of scanning lines of the read image, the ratio is taken, and the number of scanning lines of the read image is calculated from the obtained ratio.
In the present embodiment, the required number of reading lines is the number of scanning lines included up to the designated line 18 and the designated line 19.
For example, the calculation result is displayed on the screen 17 as "1/2" as shown in FIG.

7 from S602 to S604 and S60
7, the processing of S608 is S1 of FIG. 2 which is the first embodiment.
This is the same as the processing from 03 to S106 and S109 and S110. Here, S603 is a process corresponding to S104 and S105. Then, in S605, the front side image data is read up to the calculated operation line number, and in S609, the back side image data is read in succession, and S609 is performed.
Then, the read front and back image data are combined and registered in the image data storage device 5.

FIG. 8 shows a seventh embodiment in which the processing from S700 to S706 is the same as the processing from S602 to S606 in the second embodiment of FIG. 7, but S707 to S709 are different. It is a flowchart.
In S707, the number of effective scanning lines or less of the back side image data is erased, and in S708, the back side image data is written after the effective scanning line number. Then, in S709, the read or written front and back image data is combined and registered in the image data storage device 5.

Next, an embodiment of the invention described in claim 6 will be described. FIG. 9 is a flow chart for explaining the process of the eighth embodiment. In the present embodiment, even if there are a plurality of input originals, the front side image and the back side image can be combined and registered. The present embodiment will be described below with reference to FIG. In S800, it is determined whether the operator has selected a mode for registering a plurality of originals. . If registration of a plurality of originals is not selected here, S81
Proceed to 1 to process a single page. S80 when selected
The process proceeds to 1 and the process before reading is performed. The processing here is the same as that described in S101 and S102 of FIG.

In step S802, reading of a double-sided original is started. In step S803, it is determined whether the document is finished, that is, the last page. If there is the next document here, S80
Go to 4. In step S804, the number of scanning lines of the read document is acquired from the image input control unit 6. In S805, S804
The number of scanning lines obtained in step 1 and how many areas are left behind in the image memory 8 where image data can be stored are detected by the number of scanning lines.

More specifically, the difference between the final memory address of the currently stored image data and the final memory address when the preset specified image is stored is calculated,
It can be obtained by a numerical value when divided by the capacity required to register one scanning line. Here, the processes of S804 and S805 are "calculate the number of scanning lines required to store the double-sided image from the number of scanning lines of the input original stored in the image input control unit after inputting the double-sided image of the original. Means "and" means for detecting the number of scan lines that can be stored in the image memory ".

In S806, the number of scanning lines obtained by doubling the number of scanning lines of the read document is subtracted from the number of scanning lines which can be stored in the image memory detected in S805. This process is to check whether the images on both sides of the read document can be stored in the image memory 8. In S807, S8
The subsequent processing is determined according to the result of examination in 06.

When the calculation result in S806 is "positive",
Since it is possible to store the image data of both sides in the image memory 8, the image data of both sides of the input original is written in the image memory 8 in S810. Here, the image data is not stored in the image data storage device 5. At this time, the image data of two or more originals is stored in the image memory 8 as shown in the upper part of FIG. If the result of S806 is "negative", it means that the image memory 8 cannot store image data of both sides of the input document. Therefore, in S808, the contents of the image memory 8 are temporarily stored in the image data storage device 5, and the image memory 8 is opened.
In step S809, image data of both sides of the input document, which cannot be stored because the image memory 8 is opened, can be stored. Therefore, the image data is stored in the image memory 8 as shown in the lower part of FIG.

When the processing of S809 and S810 is completed, S
When the process returns to 803 and the next original exists, the processing from S804 onward is repeated. The processing from S806 to S810 is performed when the number of scan lines storable in the image memory detected by the detection unit is larger than the number of scan lines calculated by the calculation unit for storing the double-sided image. When the number of scanning lines required to store the double-sided image data of the input original is stored continuously from the image data already stored in the storage device and the double-sided image calculated by the above-mentioned means is stored in the image memory. Means for storing double-sided image data of an input document in the image memory after storing the image data as image data for one screen in the image data storage device 5.

[0044]

According to the electronic filing apparatus of the present invention, even if a document whose size is not constant is continuously read, the document in which the front side image and the back side image can be combined is automatically generated. The screen can be combined and stored. Further, a part of the information on the front side and the back side of the document can be combined and stored as an image of one screen. Furthermore, the operator can select the type of image composition. Further, the display position of the image can be designated, and a necessary portion of the document can be selected and stored.

[Brief description of drawings]

FIG. 1 is a block diagram of an electronic file device embodying the present invention.

FIG. 2 is an operation flowchart of the first embodiment of the electronic file device according to the present invention.

FIG. 3 is an operation flowchart of a second embodiment of the electronic file device according to the present invention.

FIG. 4 is an operation flowchart of a third embodiment of the electronic file device according to the present invention.

FIG. 5 is an operation flowchart of a fourth embodiment of the electronic file device according to the present invention.

FIG. 6 is an operation flowchart of a fifth embodiment of the electronic file device according to the present invention.

FIG. 7 is an operation flowchart of a sixth embodiment of the electronic file device according to the present invention.

FIG. 8 is an operation flowchart of a seventh embodiment of the electronic file device according to the present invention.

FIG. 9 is an operation flowchart of the eighth embodiment of the electronic file device according to the present invention.

FIG. 10 is an image memory map diagram of the first embodiment of the electronic file device according to the present invention.

FIG. 11 is an image display example for explaining the second embodiment of the electronic file device according to the present invention.

FIG. 12 is a diagram of an image memory map of a third embodiment of an electronic file device according to the present invention.

FIG. 13 is a display example of a selection screen used in a third embodiment of the electronic file device according to the present invention.

FIG. 14 is a diagram showing a display example of a selection screen used in a fourth embodiment and a fifth embodiment of the electronic file device according to the present invention.

FIG. 15 is a display example of a screen for designating a read start position and an end position used in the sixth embodiment and the seventh embodiment of the electronic file device according to the present invention.

FIG. 16 is a diagram showing a display example showing an example of screen compositing in the eighth embodiment of the electronic file device according to the present invention.

[Explanation of symbols]

1 ... System control unit 2 ... System memory 3 ... Image processing unit 4 ... Drive control unit 5 ... Image data storage device 6
・ ・ ・ Image input control unit 7 ・ ・ ・ Double-sided image input device 8 ・ ・ ・ Image memory 9 ・ ・ ・ Display device 10 ・ ・ ・ Display device control unit 11 ・ ・ ・ Instruction device 12 ・ ・ ・ Instruction device control unit 13 ・ ・ ・System bus 14, 15
・ Screen 16 ・ ・ Menu button 17 ・ ・ Screen 18, 19 ・ ・ Instruction line 20, 21,
22 ... Memory address 23 ... Screen frame

Claims (6)

[Claims] 1. An image input device capable of inputting a double-sided image of a document, and an image input control capable of recording the number of scanning lines required for reading from the image data of the document by the device. An electronic file device having a unit, an image memory for temporarily storing image data input by the image input device, and an image data storage device for storing and registering the image data stored in the image memory in a recording medium, A means for comparing the number of scanning lines of the input image on the front surface of the document recorded in the image input control unit after inputting a double-sided image of the document by the image input device with a preset number of scanning lines; When it is detected by the means that the number of scanning lines of the input image is equal to or less than the specified number of scanning lines, the image data of the front side and the image data of the back side are treated as the image data of one screen. An electronic filing device comprising means for synthesizing on an image memory and registering in the data storage device. 2. When the input of the front surface of the original is completed, the scanning lines of the input image are compared with a preset standard scanning line number, and the scanning line number of the input original is equal to or larger than the standard image scanning line number. If it is, it is provided with a means for continuously synthesizing the image data of the back side with the image data up to the effective scanning line number of the image data of the front side stored in the image memory. The electronic filing device described in. 3. When the number of input image scanning lines on the front side of the document is equal to or larger than a specified number of image scanning lines, a means for allowing an operator to select whether to combine and register the image data of the front side and the back side is registered. The electronic file device according to claim 1 or 2, further comprising: an electronic file device. 4. A means for displaying an input image on the front side and an input image on the back side of the document, means for designating a display position of each input image by the means, and the display position designated by the means, 3. An electronic file device according to claim 1, further comprising means for determining a position on the image memory for storing the image data. 5. A means for designating a reading start position and a reading end position of a document by the image input device, and an input image scanning line for inputting an image from the reading start position and the reading end position designated by the means. The electronic file device according to claim 1 or 2, further comprising: means for calculating a number. 6. An image input device capable of inputting a double-sided image of an original, and an image input capable of recording the number of scanning lines required for reading from the input image data of the original by the device. In an electronic filing device having a control unit, an image memory for temporarily storing image data input by the image input device, and an image data storage device for storing and registering image data stored in the image memory in a storage medium. Scanning required to store image data of both sides of the document based on the number of scanning lines of the input image on the front side of the document recorded in the image input control unit after inputting both-side image of the document by the image input device A calculating means for calculating the number of lines, a means for detecting the number of scan lines which can be stored in the image memory, and a scanning line number detected by the means are calculated by the calculating means. When the number of scanning lines is larger than the number of scanning lines, the image data of the surface of the original is continuously stored to the image data of the surface which is already stored in the image memory, and when the number of scanning lines calculated by the calculating means is smaller, the image memory An electronic device having means for storing the image data of both sides of the original in the image memory after registering the image data of the front side stored in the image data storage device as image data of one screen. File device.