JP2000295402A - Device and method for reading image and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable as much setting as possible with a main body operating part arranged on an image reader. SOLUTION: This device is provided with a host computer 280, connected to the image reader for successively transferring plural images formed on a recording medium to a prescribed position and obtaining image data, by scanning the images transported to the said prescribed position or a scanning condition setting means 251 for setting conditions for scanning the said images on the basis of scanning conditions, inputted from an operation panel 270 arranged on the main body of image reader and after the host computer 280 starts image scanning operation, regardless of the scanning conditions inputted from the said operation panel 270, image scanning is performed according to the scanning conditions set by the host computer 280. Thus, nonconformities of turning image data into scramble state caused by a difference in a scanning size is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an image reading device,
The present invention relates to an image reading method and a storage medium, and is particularly suitable for use when a host computer is externally connected to an image reading apparatus.

[0002]

2. Description of the Related Art Conventionally, there has been known a device called a microfilm scanner which projects an image formed on a film onto a screen, scans the projected image to generate image data, and loads the image data into an image memory. Has been put to practical use.

In the above-mentioned microfilm scanner, an image formed on a microfilm is positioned at a predetermined position, and is illuminated by an illuminating means comprising a light source lamp, a spherical mirror, a condenser lens and the like arranged on the microfilm carrier body side. I do. Then, the illumination light transmitted through the film is enlarged and projected at a predetermined magnification on the back surface of the reader screen (optical diffusion plate) by a projection lens, a prism lens, and a plurality of fixed mirror reader optical systems, thereby forming the reader screen. It can be viewed as an enlarged image from the front side (reader mode).

[0004] An image sensor is arranged in the above-described scanner unit. In the reader mode, the image sensor is arranged above the reader screen and held at a position evacuated from the optical path.

[0005] When scanning the micro image enlarged and projected on the reader screen, the scanner unit is moved in a direction of entering the optical path on the reader screen to scan image light. Scanning is performed (scanning mode).

In the above-described microfilm scanner, the scanning operation is performed based on a scanning condition input from an externally connected host computer or a scanning condition input from a main body operation unit provided in the main body of the image reading apparatus. Thus, the conditions for scanning the image are set.

After the scanning conditions are set by the host computer, the contents of the scanning conditions may be changed by the main body operation unit. In such a case, if the image scanning is performed according to the scanning condition changed by the main body operation unit, the scanning violates the setting of the host computer.

When the above-described scanning is performed, for example,
An inconvenience such as making a mistake in the scan size may occur, and in the worst case, the image data may be in a scrambled state. Therefore, conventionally, when the host computer is externally connected, all operations of the main body operation unit are disabled.

[0009]

When the host computer is externally connected, all operations of the main body operation unit provided in the image reading apparatus are invalidated. However, there is a problem that the workability when setting the conditions for scanning an image is extremely poor, since the operation must be performed at the host computer side.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to enable a small change in scanning conditions to be performed by scanning a main body operation unit provided in an image reading apparatus. .

[0011]

An image reading apparatus according to the present invention sequentially conveys a plurality of images formed on a recording medium to a predetermined position, scans the image conveyed to the predetermined position, and converts the image data. An image reading device for obtaining the image based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit provided in the image reading device main body. Scanning condition setting means for setting scanning conditions, wherein after the host computer starts an image scanning operation, irrespective of the scanning conditions inputted from the main body operation unit, the scanning condition setting means comprises: The image is scanned according to scanning conditions set by a computer. Another feature of the image reading apparatus of the present invention is an image reading apparatus that obtains image data by scanning an image formed on a recording medium, and a host computer connected to the image reading apparatus. Scanning condition setting means for setting a condition for scanning the image based on a scanning condition input from the camera or a scanning condition input from a main body operation unit provided in the image reading apparatus main body. Means, after the host computer starts an image scanning operation,
The image is scanned according to the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. Also,
Another feature of the image reading apparatus of the present invention is that the scanning condition setting means includes a first scanning condition group including scanning conditions input from the host computer;
A second scanning condition group consisting of scanning conditions input from the main body operation unit, and after the host computer starts an image scanning operation, the scanning condition set in the first scanning condition group is used. It is characterized by performing image scanning. Another feature of the image reading apparatus of the present invention is that the plurality of images formed on the recording medium are sequentially conveyed to a predetermined position, and the image conveyed to the predetermined position is scanned to convert the image data. An image reading device for obtaining the image based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit provided in the image reading device main body. Scanning condition setting means for setting a condition for scanning, the scanning condition setting means, even after the host computer starts an image scanning operation,
When the image can be scanned, the image is scanned according to scanning conditions set by an input from the main body operation unit. Another feature of the image reading apparatus of the present invention is an image reading apparatus that obtains image data by scanning an image formed on a recording medium, and a host computer connected to the image reading apparatus. Scanning condition setting means for setting a condition for scanning the image based on a scanning condition input from the camera or a scanning condition input from a main body operation unit provided in the image reading apparatus main body. The means, when the image can be scanned even after the host computer has started the image scanning operation, scans the image according to the scanning conditions set by the input from the main body operation unit. It is characterized by scanning. According to another feature of the image reading device of the present invention, the image reading device includes a display unit that displays image information on a screen, and scans an image projected on the display unit by a scanning unit. It is characterized by obtaining data. Another feature of the image reading apparatus of the present invention is that the recording medium is a microfilm.

According to the image reading method of the present invention, a plurality of images formed on a recording medium are sequentially conveyed to a predetermined position, and the image conveyed to the predetermined position is scanned by an image reading device to obtain image data. A reading method, wherein the image is scanned based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit provided in the main body of the image reading device. After the conditions are set by the scanning condition setting means, and the host computer starts the image scanning operation, the image is read according to the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. It is characterized by scanning.
Another feature of the image reading method of the present invention is an image reading method in which an image formed on a recording medium is scanned by an image reading device to obtain image data, and the image reading method is connected to the image reading device. The scanning condition setting means sets the conditions for scanning the image on the basis of the scanning conditions input from the input host computer or the scanning conditions input from the main body operation unit provided in the main body of the image reading apparatus. After the computer starts the image scanning operation, the computer scans the image according to the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. According to another feature of the image reading method of the present invention, the scanning condition setting unit includes a first scanning condition group including scanning conditions input from the host computer and an input from the main body operation unit. And a second scanning condition group comprising scanning conditions, wherein after the host computer starts the image scanning operation, the scanning condition is set using the first scanning condition group. Another feature of the image reading method of the present invention is that an image reading apparatus that sequentially conveys a plurality of images formed on a recording medium to a predetermined position and scans the image conveyed to the predetermined position is provided. An image reading method for obtaining image data by using a scanning condition input from a host computer connected to the image reading device,
Alternatively, a condition for scanning the image is set by scanning condition setting means based on a scanning condition input from a main body operation unit provided in the main body of the image reading apparatus, and after the host computer starts an image scanning operation. Even when the image can be scanned, the image is scanned according to the scanning conditions set by the input from the main body operation unit. Another feature of the image reading method of the present invention is an image reading method for obtaining image data using an image reading device that scans an image formed on a recording medium,
Scanning condition setting means for setting conditions for scanning the image based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit provided in the image reading device main body. If the image can be scanned even after the host computer starts the image scanning operation, the image is scanned in accordance with the scanning condition set by the input from the main body operation unit. Is scanned. According to another feature of the image reading method of the present invention, the image reading device includes a display unit that displays image information on a screen, and scans an image projected on the display unit by a scanning unit. It is characterized by obtaining data. Another feature of the image reading method of the present invention is that the recording medium is a microfilm.

[0013] A storage medium according to the present invention is characterized in that a program for causing a computer to function as means constituting the image reading device is stored so as to be readable from the computer. Another feature of the storage medium of the present invention is that a program for causing a computer to execute the procedure of the image reading method is stored so as to be readable from the computer.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an image reading apparatus, an image reading method and a storage medium according to the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and is a front view showing a schematic configuration of a microfilm scanner, and FIG. 2 is a perspective view showing a configuration of an optical system in the microfilm scanner.

FIG. 1 is a front view showing an embodiment of the present invention and showing a schematic configuration of a microfilm scanner.
In FIG. 1, 600 is a microfilm scanner, 6
10 is a roll film carrier attached to the microfilm scanner, 180 is a leader screen, 18
1 is a display screen, 16 is a projection lens.

In the present embodiment, as will be described later, a desired image frame portion of the roll microfilm F is searched for in the projection glass portion A as a projection position by an automatic image frame search operation of the roll film carrier 610.

The light source lamp 14 and the spherical mirror 14 are arranged such that the image frame portion is disposed below the projection glass portion A and on the microfilm carrier main body side.
a, a illuminating means including a condenser lens 15 and the like, which is illuminated from below by a illuminating means, and a illuminating light transmitted through the film is a reader section comprising a projection lens 16, a prism lens 18, and fixed first to fourth mirrors 41 to 44 The optical system enlarges and projects the rear screen of the reader screen (optical diffusion plate) 180 at a predetermined magnification. As a result, the micro image can be viewed as an enlarged image from the front side of the reader screen 180 (reader mode).

An image sensor 48 is arranged on the scanner unit 80. The image sensor 48 is arranged above the reader screen 180 in the reader mode, and is held at a position retracted from the optical path.

When scanning of the micro image enlarged and projected on the reader screen 180 is to be performed, a scan instruction is issued from a host computer or a main body operation unit which will be described later, and the scanner unit 80 is connected to the motor 81. The belt 82 is moved in the direction of entering the optical path on the reader screen 180 (arrow ef in FIG. 2), and the image sensor 48 scans the image light to execute scanning (scanning). mode).

FIG. 3 is a block diagram showing a schematic configuration of the image reading apparatus according to the present embodiment. In the present embodiment, a host computer 280 and a printer 290 are connected as connected devices. The image reading apparatus 200 includes a scanner unit 210 that scans the microfilm F set on the roll film carrier 610 with the image sensor 211 to obtain image information on a document.

The driving unit 2 of the scanner unit 210
60, an image processing unit 220 that performs image processing such as gradation conversion and image synthesis on the image information obtained by the scanner unit 210, and an image processing unit that stores the image information after the image processing by the image processing unit 220. Image memory 230, a communication unit 240 for communicating with a host computer (personal computer) 280 and a printer 290 that can be connected to the main body of the image reading apparatus 200, and an operation unit for performing various settings for reading image information ( Operation panel) 270
And a CP that controls the operation of the entire image reading apparatus 200
U250. And the above CP
By U250, the scan condition setting unit 2 of the present embodiment
51 is a program configuration.

The image reading apparatus 200 according to the present embodiment configured as described above basically operates in accordance with an instruction from the host computer 280. The operation can be performed in accordance with an instruction from 270.

As the microfilm F which is the object of the image reading apparatus 200 of the present embodiment, both a negative film as shown in FIG. 4A and a positive film as shown in FIG. The image data can be obtained by scanning.

It is also possible to arbitrarily select the left reference as shown in FIG. 5A, the "center" as shown in FIG. 5B, and the "continuous shooting" as shown in FIG. 5C. it can.

As shown in FIG. 6, the operation section 270 is provided with a film designation section 169, a projection position designation section 167, a size designation section 161 and the like. The film designation section 169 is provided with a selection button 170, the projection position designation section 167 is provided with a selection button 168, and the size designation section 161 is provided with a selection button 162.

Then, as shown in FIG. 6, when "positive film" is selected as the film, "center" is selected as the projection reference position, and the standard "A3" is selected as the scan area size. As shown in (a), each image frame of the film is A based on the center (center).
The image is projected on the reader screen 180 in three sizes.

As shown in FIGS. 7A and 7B, a "negative film" is selected as a film, a "left reference" is selected as a projection reference position, and a standard "A4" is set as a scan area size. Is selected, FIG. 7 (a)
As shown in the figure, each image frame of the film is "left reference" and the size is "A4 size".
Is projected on the display surface 181.

Next, the image reading apparatus 2 of the present embodiment
The image operation method, which is a main feature of 00, will be described with reference to the flowcharts of FIGS. The flowchart in FIG. 8 shows that after the host computer 280 connected to the image reading device 200 starts the image scanning operation,
The procedure for scanning the image according to the scanning conditions set by the host computer 280 regardless of the scanning conditions input from the operation panel 270 is shown.

In this case, when the processing is started, an initial setting is performed in the first step S0. Next, the process proceeds to step S1, where it is determined whether or not there is a command from the host computer 280.

If there is a command, step S
At 2, it is determined whether the command is a scan command. If the result of this determination is that the command is a scan command, the process proceeds to step S3, where the first parameter group A
To set a scan condition and start a scan operation. Here, the first parameter group A is configured by scanning parameters input from the host computer 280.

On the other hand, if the result of determination in step S1 is that there is no command from the host computer 280, the flow advances from step S1 to step S4 to determine whether or not the operation panel 270 has been operated.

As a result of this judgment, the operation panel 2
If 70 has not been operated, the process returns to step S1.
If the operation panel 270 has been operated, the process proceeds to step S5, and the second parameter group B is changed.

If it is determined in step S2 that the command from the host computer 280 is not a scan command, the flow advances to step S6 to determine whether the command is a parameter acquisition command. If the result of this determination is that the command is a parameter acquisition command, step S
The process proceeds to step S7, where the second parameter group B is transmitted to the host computer 280, and then the process proceeds to step S8. In step S8, the host computer 280 copies the received second parameter group B to the first parameter group A.

If the result of the determination in step S6 is that the command from the host computer 280 is not a parameter acquisition command, the flow advances to step S9 to determine whether or not the command is a parameter setting command. In this case, the process proceeds to step S10 to receive the first parameter group A.

An image reading apparatus 200 according to the present embodiment
Performs the image scanning as described above, so that even if the operation panel 270 is operated after the host computer 280 starts the scanning operation and the scanning conditions are changed, a scan that is not recognized by the host computer 280 is performed. Can be effectively prevented.

As a result, for example, a problem that the host computer 280 makes a mistake in the scan size does not occur, so that a problem that the image data is in a scrambled state due to the difference in the size can be prevented. .

Next, a second embodiment of the image reading method of the present invention will be described with reference to the flowchart of FIG. In the image scanning method shown in the flowchart of FIG. 8, after the host computer 280 starts the scanning operation, the operation of the operation panel 270 is ignored, but in the present embodiment, the host computer 280 Even after the image scanning operation is started, the operation panel 27 under certain conditions.
The change of the scan condition input from 0 is allowed.

In the case of the present embodiment, when the processing is started, an initial setting is performed in a first step S20. Next, the process proceeds to step S21, and it is determined whether or not there is a command from the host computer 280.

If there is a command, step S
At 22, it is determined whether the command is a scan command. If the result of this determination is that the command is a scan command, the flow advances to step S23 to set a scan condition according to the scan parameters and start a scan operation.

On the other hand, as a result of the determination in step S21,
If it is not a command from the host computer 280, the process proceeds from step S21 to step S24 to determine whether the operation panel 270 has been operated.

As a result of this judgment, the operation panel 2
If 70 has not been operated, the process returns to step S21. If the operation panel 270 has been operated, the process proceeds to step S25, and the operation panel 2
It is determined whether the scanning parameters can be changed based on the command input from 70. Here, it is the change of the scan size that the change of the scan parameter is impossible,
In the case of other changes, it is determined that the change is possible even if the image mode is slightly changed.

If the result of determination in step S25 is that scanning parameters can be changed, control proceeds to step S26, where a change is made to the parameter group, and thereafter, step S2 is performed.
Return to 1.

If it is determined in step S22 that the command from the host computer 280 is not a scan command, the flow advances to step S27 to determine whether the command is a parameter acquisition command. If the result of this determination is that the command is a parameter acquisition command, the flow advances to step S28 to transfer the parameter group to the host computer 2.
80, and then proceeds to step S21.

If the result of the determination in step S27 is that the command from the host computer 280 is not a parameter acquisition command, the flow advances to step S29 to determine whether or not the command is a parameter setting command. In this case, the process proceeds to step S30 to receive the parameter group.

Image reading apparatus 200 of the present embodiment
Performs image scanning as described above, so that even after the host computer 280 starts the scanning operation, the operation conditions can be changed by operating the operation panel 270. This makes it possible to make scan settings in the vicinity of the reader screen 180, and can save the trouble of going to the host computer 280 side for a slight change, thereby improving work efficiency.

(Other Embodiments of the Present Invention) The present invention is applied to a system composed of a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), but is also applicable to an apparatus composed of one device. You may.

Further, in order to realize the functions of the above-described embodiments, a device connected to the above-mentioned various devices or a computer in a system is operated so as to operate various devices so as to realize the functions of the above-described embodiments. The present invention also includes programs implemented by supplying the program code of the software described above and operating the various devices according to programs stored in a computer (CPU or MPU) of the system or apparatus.

In this case, the program code of the software implements the functions of the above-described embodiment, and the program code itself and means for supplying the program code to the computer are provided.
For example, a storage medium storing such a program code constitutes the present invention. As a storage medium for storing such a program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM,
A magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the supplied program code, not only the functions of the above-described embodiment are realized, but also the OS (operating system) or other operating system running on the computer. Needless to say, even when the functions of the above-described embodiments are realized in cooperation with application software or the like, such program codes are included in the embodiments of the present invention.

Further, after the supplied program code is stored in the memory provided on the function expansion board of the computer or the function expansion unit connected to the computer, the function expansion board or the function expansion unit is stored based on the instruction of the program code. It is needless to say that the present invention also includes a case where the CPU or the like provided in the first embodiment performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0051]

According to the present invention, as described above, according to the present invention, after the host computer starts the image scanning operation, the setting by the host computer is performed irrespective of the scanning conditions input from the main body operation unit. The above-described image is scanned according to the set scanning conditions. Therefore, even if the main body operation section is operated to change the scanning conditions after the host computer starts the scanning operation, a scan that is not recognized by the host computer is performed. Can be effectively prevented. As a result, the inconvenience that the host computer mistakes the scan size can be reliably prevented, and the inconvenience that the image data is in a scrambled state due to the different scan size can be prevented.

According to another feature of the present invention, when a change command is issued from the main body operation unit after the host computer starts the image scanning operation, image scanning is performed based on the change command. When possible, the image is scanned according to the scanning conditions set by the input from the main body operation unit. Therefore, even after the host computer starts the scanning operation, the main body operation unit is operated. Thus, the scanning conditions can be changed. This makes it possible to make scan settings in the vicinity of the image reading device, thereby eliminating the need to go to the host computer for a slight change, thereby improving work efficiency.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a front view of an image reading apparatus.

FIG. 2 is a perspective view showing a configuration of an optical system in the microfilm scanner.

FIG. 3 is a block diagram illustrating a schematic configuration of an image reading device.

FIG. 4 is a diagram illustrating an example of a film that can be handled by the image reading device according to the embodiment;

FIG. 5 is a diagram illustrating a reference when projecting on a reader screen.

FIG. 6 is a diagram showing a state in which an image is displayed at the center in A3 size on a leader screen.

FIG. 7 is a diagram showing a state in which an image is displayed on the reader screen in A4 size on the left basis.

FIG. 8 is a flowchart illustrating a first example of a scanning operation according to the embodiment.

FIG. 9 is a flowchart illustrating a second example of the scan operation according to the embodiment;

[Explanation of symbols]

 Reference Signs List 200 Image reading device 210 Scanner unit 211 Image sensor 220 Image processing unit 230 Image memory 240 Communication unit 250 CPU 252 Scan condition setting unit 260 Drive unit 270 Operation unit (operation panel) 280 Host computer 290 Printer 610 Roll film carrier F Microfilm

Claims (24)

[Claims] 1. An image reading apparatus for sequentially transporting a plurality of images formed on a recording medium to a predetermined position and scanning the images transported to the predetermined position to obtain image data, the image reading apparatus comprising: Scanning condition setting means for setting conditions for scanning the image based on a scanning condition input from a host computer connected to the image reading apparatus or a scanning condition input from a main body operation unit provided in the image reading apparatus main body. After the host computer starts the image scanning operation, the scanning condition setting means scans the image in accordance with the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. An image reading apparatus, comprising: 2. The apparatus according to claim 1, wherein the scanning condition setting means includes a first scanning condition group including scanning conditions input from the host computer, and a second scanning condition group including scanning conditions input from the main body operation unit. The image reading apparatus according to claim 1, further comprising: after the host computer starts an image scanning operation, performs image scanning under the scanning conditions set in the first scanning condition group. 3. An image reading device for sequentially transporting a plurality of images formed on a recording medium to a predetermined position and scanning the images transported to the predetermined position to obtain image data, wherein the image reading device is provided. Scanning condition setting means for setting conditions for scanning the image based on a scanning condition input from a host computer connected to the image reading apparatus or a scanning condition input from a main body operation unit provided in the image reading apparatus main body. And, even after the host computer starts the image scanning operation, the scanning condition setting means is set by an input from the main body operation unit when the image can be scanned. An image reading device for scanning the image according to a scanning condition. 4. The image reading device according to claim 1, further comprising a display unit for displaying image information on a screen, wherein the image projected on the display unit is scanned by a scanning unit to obtain image data. The image reading device according to any one of claims 1 to 3. 5. The image reading device according to claim 1, wherein the recording medium is a microfilm. 6. An image reading method for sequentially transporting a plurality of images formed on a recording medium to a predetermined position and scanning the images transported to the predetermined position with an image reading device to obtain image data, Scanning condition setting means for setting conditions for scanning the image based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit provided in the image reading device main body. After the host computer starts the image scanning operation, the image is scanned according to the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. Image reading method. 7. The scanning condition setting means includes: a first scanning condition group including scanning conditions input from the host computer; and a second scanning condition group including scanning conditions input from the main body operation unit. 7. The image reading method according to claim 6, wherein after the host computer starts an image scanning operation, a scanning condition is set using the first scanning condition group. 8. An image reading method for sequentially transferring a plurality of images formed on a recording medium to a predetermined position and obtaining image data using an image reading apparatus that scans the images transferred to the predetermined position. A scanning condition setting condition for scanning the image based on a scanning condition input from a host computer connected to the image reading device or a scanning condition input from a main body operation unit disposed in the image reading device main body. Means, the image can be scanned even after the host computer has started the image scanning operation. If the image can be scanned, the image is scanned in accordance with the scanning condition set by the input from the main body operation unit. An image reading method comprising scanning an image. 9. The image reading apparatus according to claim 6, further comprising display means for displaying image information on a screen, wherein the image projected on the display means is scanned by scanning means to obtain image data. The image reading method according to any one of Items 1 to 8, wherein . 10. The image reading method according to claim 6, wherein the recording medium is a microfilm. 11. A storage medium storing a program for causing a computer to function as the means for configuring the image reading apparatus according to claim 1 so as to be readable from the computer. 12. A storage medium, wherein a program for causing a computer to execute the procedure of the image reading method according to claim 6 is stored so as to be readable from the computer. 13. An image reading apparatus for obtaining image data by scanning an image formed on a recording medium, wherein: a scanning condition input from a host computer connected to the image reading apparatus; or an image reading apparatus main body. Scanning condition setting means for setting a condition for scanning the image based on a scanning condition input from a main body operation unit provided in the computer. The scanning condition setting means causes the host computer to start an image scanning operation. An image reading device that scans the image according to the scanning conditions set by the host computer, regardless of the scanning conditions input from the main body operation unit. 14. The scanning condition setting means includes: a first scanning condition group consisting of scanning conditions input from the host computer; and a second scanning condition group consisting of scanning conditions input from the main body operation unit. 14. The image reading apparatus according to claim 13, wherein after the host computer starts the image scanning operation, the image scanning is performed under the scanning conditions set in the first scanning condition group. 15. An image reading apparatus for obtaining image data by scanning an image formed on a recording medium, wherein: a scanning condition input from a host computer connected to the image reading apparatus; or an image reading apparatus main body. Scanning condition setting means for setting a condition for scanning the image based on a scanning condition input from a main body operation unit provided in the computer. The scanning condition setting means causes the host computer to start an image scanning operation. An image reading device that scans the image in accordance with a scanning condition set by an input from the main body operation unit, if the image can be scanned even after the scanning. 16. The image reading apparatus according to claim 1, further comprising display means for displaying image information on a screen, wherein the image projected on the display means is scanned by scanning means to obtain image data. The image reading device according to any one of claims 1 to 3. 17. The image reading apparatus according to claim 13, wherein said recording medium is a microfilm. 18. An image reading method for obtaining an image data by scanning an image formed on a recording medium with an image reading device, comprising: a scanning condition input from a host computer connected to the image reading device; A condition for scanning the image is set by a scanning condition setting unit based on a scanning condition input from a main body operation unit provided in the image reading apparatus main body. After the host computer starts an image scanning operation, An image reading method, wherein the image is scanned according to a scanning condition set by the host computer, irrespective of a scanning condition input from a main body operation unit. 19. The scanning condition setting means includes a first scanning condition group including scanning conditions input from the host computer and a second scanning condition group including scanning conditions input from the main body operation unit. 19. The image reading method according to claim 18, wherein after the host computer starts an image scanning operation, a scanning condition is set using the first scanning condition group. 20. An image reading method for obtaining image data using an image reading device that scans an image formed on a recording medium, comprising: a scanning condition input from a host computer connected to the image reading device; Alternatively, a condition for scanning the image is set by scanning condition setting means based on a scanning condition input from a main body operation unit provided in the main body of the image reading apparatus, and after the host computer starts an image scanning operation. Even if the image can be scanned, the image is scanned according to scanning conditions set by an input from the main body operation unit. 21. The image reading device according to claim 18, further comprising display means for displaying image information on a screen, wherein the image projected on the display means is scanned by a scanning means to obtain image data. 23. The image reading method according to any one of claims 22 to 22. 22. The image reading method according to claim 18, wherein the recording medium is a microfilm. 23. A storage medium storing a program for causing a computer to function as the means for configuring the image reading apparatus according to claim 13 to be readable from the computer. 24. A storage medium storing a program for causing a computer to execute the procedure of the image reading method according to any one of claims 18 to 22 so as to be readable from the computer.