JPH10157881A - Sheet type photography film feeder, image reading device, and image reading system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for deciding gradation regulating quantity for providing a monochromatic image signal reproducing excellent gradation. SOLUTION: In a gradation regulating quantity deciding method for an image reading device in which an image reading means, by which monochromatic image recorded on a monochromatic film is read and an image reading signal is provided, and a gradation regulating means, by which gradation of the image reading signal provided from the image reading means is regulated, are provided and a monochromatic image signal reproducing a monochromatic image with regulated gradation is provided by means of the gradation regulating means, the monochromatic image recorded on a gradation regulating quantity deciding monochromatic film is read by means of the image reading means, an image reading signal is obtained, the obtained image reading signal and the monochromatic image recorded on the gradation regulating quantity deciding monochromatic film are measured by means of a densitometer, and on the basis of a comparison with the obtained density information, a gradation regulating quantity is decided. In this process, a difference of photometric characteristics in the densitometer between the gradation regulating quantity deciding monochromatic film and a monochromatic film whose image is to be read by means of the image reading means is corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like photographic film feeding apparatus, an image reading apparatus, and an image reading system.

[0002]

2. Description of the Related Art A storage section capable of accommodating a plurality of sheet-like developed silver image films obtained by developing a silver halide X-ray photographic photosensitive film, and a sheet-like developing apparatus accommodated in the above-mentioned storage section. By performing a separating operation for separating one sheet of the developed silver image film from the silver image film,
There has been known a digitizer capable of reading an image recorded on a sheet-like developed silver image film fed from a sheet-like developed silver image film feeding device having a feeding means for feeding.

In this conventional digitizer, when a plurality of sheet-like developed silver image films are set at a time in an accommodating portion capable of accommodating a plurality of sheet-like developed silver image films, the sheet-like developed silver image is automatically obtained. Since the film is fed one by one and the image is read, there is no need for the operator to be sharp with the digitizer, which is quite convenient.

[0004]

However, the storage state and handling of the sheet-like developed silver image film vary depending on the operator and the installation place, and the sheet-like developed silver image film which is stored in a good condition and handled well is handled. There is no problem in the case of image film, but in the case of silver image film that has been stored in a very poor condition, such as in a humid condition or a condition in which static electricity tends to accumulate, or in the case of rough handling, The silver image film tends to stick together, so that the sheet-like developed silver image film cannot be separated one by one from the storage unit, and it frequently occurs that the sheet is multi-fed. The developed silver image film must be separated one by one, which requires the operator to be sharp with the digitizer, which is inconvenient.

Therefore, it is widely known to devise a separating operation for separating the sheet-like developed silver image film one by one so that the sheet-like developed silver image film is not easily fed even if the sheet-like developed silver image film is easily adhered. After examining various separation operations,
No one capable of reliably separating the developed silver image film sheet by sheet under any circumstances was found.

[0006] An object of the present invention is to allow an operator to frequently use a sheet-like developed silver image film even when the sheet-like developed silver image film is stored in a very poor condition, or when the sheet is easily mishandled. An object of the present invention is to eliminate the necessity for an operator to make the sheet-like developed silver image film separate one by one and to make it convenient.

[0007]

The object of the present invention is achieved by the following claims. Hereinafter, each claim will be described. In addition, the description which overlaps with the cited item will be omitted.

[Explanation of Claim 1] [A storage part capable of storing a plurality of sheet-shaped developed silver image films obtained by developing a silver halide X-ray photographic film and a storage part overlapping the storage part] Feeding means for performing a separating operation for separating one sheet of the developed silver image film from the sheet-shaped developed silver image film, and feeding the sheet-shaped developed silver image film; A double-feed detecting means for detecting a double feed of the developed silver image film, and when the double-feed detecting means detects the double feed, the sheet-shaped developed silver image film in which the double feed has been detected is stored in the storage section. Return to the feeding means, again
A sheet-like developed silver image film feeding device, wherein the feeding is performed by performing the separating operation. ], Even if the fed sheet-like developed silver image film is returned to the feeding means, unlike paper, etc., there is almost no possibility that a jam occurs in the returning operation, and the undeveloped photographic film is There is no possibility that static fogging will occur, and when the sheet-shaped developed silver image film is multi-fed, the fed sheet-shaped developed silver image film is returned to the feeding means, and to the feeding means, again. Because the separation operation is performed and the sheet is fed, even when the sheet-shaped developed silver image film is likely to be stuck,
In many cases, the sheet-like developed silver image film can be automatically separated and fed one by one by the re-separation operation, so that the operator does not need to be clearly attached to the sheet-like developed silver image film feeding device, It becomes quite convenient.

[Explanation of claim 2] [Supply feeding by the feeding means is stopped when the double feeding detecting means detects the double feeding in all of a plurality of predetermined continuous feedings by the feeding means. 2. The sheet-type developed silver image film feeding device according to claim 1, wherein the feeding defect is indicated. ], The infinite feeding / return / separation operation can be performed even if the sheet-like developed silver image films, which may occur in rare cases, are stuck together and cannot be separated by a predetermined multiple re-separation operations. Is not repeated, so feed / return /
It is possible to prevent the occurrence of scratches, breakage, or bending of the sheet-like developed silver image film due to the repetition of the separating operation, to shorten the life of the feeding means and to waste power, and to show the feeding failure, so that the operator can perform the feeding operation. Appropriate measures can be taken promptly.

[Explanation of claim 3] "There is a non-conveyance detecting means for detecting non-conveyance (no sheet developed silver image film is fed) by the feeding means, 3. The sheet-like developed silver image film feeding device according to claim 1, wherein when the detecting unit detects no conveyance, the feeding unit is caused to perform the separation operation again to feed the sheet. Feeder. By the above, if there is a sheet-shaped developed silver image film in the accommodating section, even if it is difficult to feed the sheet-shaped developed silver image Since the sheets can be automatically separated and fed one by one, there is no need for the operator to be sharp in the sheet-like developed silver image film feeding apparatus, which is considerably convenient.

[Explanation of Claim 4] "The double feed detecting means also serves as the non-conveyance detecting means.
2. The sheet-like developed silver image film feeding device according to item 1. ], The non-conveyance can be detected by one double feed detecting means, so that it is not necessary to provide a plurality of detecting means.

[Explanation of claim 5] "When the non-conveyance detecting means detects non-conveyance in all of a plurality of predetermined continuous feedings by the feeding means, the feeding by the feeding means is stopped. 5. The sheet-like developed silver image film feeding device according to claim 3, wherein the feeding defect is indicated. ], Even if the sheet-like developed silver image film, which may occur rarely, cannot be fed at all, the feeding operation is not repeated indefinitely. It is possible to prevent a shortening of the service life of the feeding means and waste of power, and to indicate a feeding failure, so that the operator can quickly take appropriate measures.

[Sheet 6] The sheet according to any one of claims 1 to 5, wherein the feeding means performs the separating operation by using a suction cup. Developed silver image film feeder. ], It is extremely unlikely that the fed sheet-shaped developed silver image film is fed in a state shifted in the transport direction and is therefore extremely low. The occurrence of jam due to returning the silver image film to the storage section can be prevented.

[Explanation of claim 7] "It is detachable from an image reading apparatus having image reading means for reading an image recorded on the sheet-like developed silver image film fed by the feeding means. The sheet-like developed silver image film feeding device according to any one of claims 1 to 6. 』
Therefore, there is no need to provide a double feed detecting means on the image reading device side, and double feed detection can be performed in a sheet developed silver image film feeding device independent of the image reading device. The effect of the present invention can be achieved only by attaching the image film feeding device to the image reading device.

[Explanation of Claim 8] "A feeding device base on which the sheet-like developed silver image film feeding device according to claim 7 can be detachably mounted, and the sheet-like sheet mounted on the feeding device base" An image reading device, comprising: image reading means for reading an image recorded on a sheet-like developed silver image film fed by a developed silver image film feeding device. 』
Accordingly, the sheet-like developed silver image film feeding device according to claim 7 is merely installed on the feeding device table, and the operator does not need to be sharp at the sheet-like developed silver image film feeding device, which is quite convenient. Can be produced.

[Explanation of Claim 9] "The feeding device stand is
9. The image reading device according to claim 8, wherein a manual feeding device for feeding the sheet-form developed silver image film one by one by manual insertion can also be detachably installed. ], It is not necessary to install an inexpensive manual feeding device, and the operator does not need to be sharp at the sheet-like developed silver image film feeding device.
It is possible to install a sheet-like developed silver image film feeding device which has a considerably convenient effect, and it is possible to easily change the device in accordance with the use form of the device.

[Explanation of claim 10] "A sheet-like developed silver image film feeding device according to any one of claims 1 to 7, and a sheet-like developed silver image fed by the feeding means." An image reading apparatus comprising: an image reading unit that reads an image recorded on an image film. In addition to the effect of the sheet-like developed silver image film feeding device according to any one of claims 1 to 7, the image recorded on the sheet-like developed silver image film is automatically read. This eliminates the need for the operator to clearly see the image reading device, which is considerably convenient.

[Explanation of claim 11] [ID information acquisition means for obtaining ID information for identifying each sheet-like developed silver image film in the order of stacking the film on the storage section, wherein the ID information ID information obtained by the obtaining means
The image reading device according to claim 9, wherein the image reading device is associated with an image read by the image reading device according to an order of reading by the image reading device. ], The possibility that the sheet-shaped developed silver image film is double-fed and fed to the image reading means is extremely low, so that the correspondence accuracy between the ID information and the image read by the image reading means is increased.

[Explanation of Claim 12] [Storage for storing the image reading device according to claim 11, an image read by the image reading device, and ID information associated with the image in a corresponding manner. An image reading system comprising: a device. ], The accuracy of the correspondence between the stored ID information and the image read by the image reading means is high, and in various applications of the stored information, the correspondence between the ID information and the image read by the image reading means is improved. The work of confirming is unnecessary.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific examples of the present invention will be described as embodiments, but the present invention is not limited thereto. Further, in the embodiments, although there are definite expressions for terms and the like, they show preferred examples of the present invention, and do not limit the meaning or technical scope of the terms of the present invention.

Embodiment FIG. 1 is a schematic sectional view of a digitizer 50 according to this embodiment. Hereinafter, a digitizer 50 of the present embodiment, which is an image reading apparatus of the present invention, will be described with reference to FIG.

As shown in FIG. 1, a digitizer 50 according to the present embodiment comprises a sheet-shaped X which is a sheet-shaped developed silver image film.
A setting unit 52 for setting a feeding device or a manual feeding device 40 for feeding the X-ray film F, and a conveying unit 5 for conveying the sheet-shaped X-ray film set in the setting unit 52
3, a scanning optical device 51 for scanning the sheet-shaped radiographic film F conveyed in the sub-scanning direction by the conveying unit 53 on a line at a predetermined position, and a sheet-shaped radiographic film F scanned by the scanning optical device 51. Light-receiving device 54 for receiving the transmitted light, a signal processing unit 56 for processing an image reading signal based on the light received by the light-receiving device, such as gradation adjustment, and a sheet-shaped radiograph conveyed by the conveyance unit 53 Film F
55 having a slope for guiding the sheet to the stock section 58, a stock section 58 for accommodating the sheet-shaped radiographic film F guided by the guide 55, and a sheet-shaped X-ray photograph set in the accommodating section 49 of the feeding device. An input unit 59 for performing various inputs such as input of ID information of the film F;

The manual feeding device 40 shown in FIG. 1 is a manual feeding device for feeding a sheet-shaped X-ray photographic film F one by one by hand. And in the set part 52,
Instead of this manual feeding device, a feeding device that feeds the sheet-shaped X-ray photographic films F one by one from a storage portion 49 capable of storing a plurality of sheet-shaped X-ray photographic films can also be set. FIG. 4 shows a partially enlarged view of this state.

The scanning optical device 51 is a polygon mirror that adjusts the laser light emitted from the laser light source into parallel light with a collimator lens, shapes it with a beam shaping optical system, and rotates the shaped laser light at a constant rotation speed. It is a device that reflects as laser light that scans at a constant angular velocity, converts the laser light into laser light that scans at a constant speed on the film F surface with an fθ lens, and main scans the sheet-shaped X-ray photographic film F at a constant speed. is there.

The light receiving device 54 focuses the laser beam transmitted through the sheet-shaped X-ray photographic film F by a light collector, photoelectrically converts the light collected by a photomultiplier, and generates a current proportional to the amount of received light. Device.

The signal processing section 56 performs logarithmic conversion and current / voltage conversion of the current generated in the light receiving device 54, adjusts the gradation of the logarithmically converted and current / voltage converted image reading signal voltage, and performs A / A conversion.
D conversion is performed, and digital data for each line is stored in the RAM. Each time the transport unit 53 moves the sheet X-ray photographic film by one line in the sub-scanning direction, the above-described signal processing is repeated so that digital data for one screen of the sheet X-ray photographic film is converted into a digital image. As RAM
This is a device for storing the information.

When the sheet-shaped X-ray photographic film F is set from the input section 59 to the storage section 49 of the feeding device,
Sheet-shaped X set to be stacked on the accommodation portion 49 of the feeding device
When the ID information is input in the order of the radiographic film F, the signal processing unit 56 stores the order and the ID information. The signal processor 56 feeds the sheet-shaped X-ray photographic film F in the order set by the feeding device of the present invention. Attach and remember. Then, the signal processing unit 56 transmits the digital image stored in association with the ID information to the image processing device 60 in a state where the digital image is associated with the ID information. The image processing device 60 has a built-in hard disk, and stores the digital image and ID information transmitted in association with each other on the hard disk.

The signal processing section 56 associates the digital image with the ID information according to the order in which the digital image was obtained. 60 to the image processing device 6
0 may store the digital image and ID information transmitted in association with each other on the hard disk.

The manual feeding device 40, the feeding device, and the image reading device 50 can handle a plurality of sheet-shaped X-ray photographic films having different lengths in the conveying direction, and have a plurality of different lengths in the conveying width direction. Can be handled. Specifically, a sheet of a size from a half cut (length in the conveyance direction about 430 mm, length in the conveyance width about 354 mm) to a size for a mammo (length in the conveyance direction about 238 mm, length in the conveyance width direction about 178 mm) X-ray film F can be handled.

The stock section 58 is for stacking and storing the sheet-shaped X-ray films F from which images have been read in the reading order. The slope of the guide 55 is located above the bottom surface of the stock portion 58, and a blower 57 is provided between the guide 55 and the bottom surface of the stock portion 58. Ventilate from the bottom. Thereby, even if the short sheet-shaped photographic film F is stored in the uppermost stage of the stock portion 58, the leading end of the next sheet-shaped X-ray photographic film F reaches ahead of the rear end of the short sheet-shaped photographic film F. Therefore, the next sheet-shaped radiographic film F is
The next sheet-shaped X-ray photographic film F can be completely and satisfactorily stored in the stock portion 58 without hitting the rear end of the short sheet-shaped photographic film F stored in the uppermost stage of FIG. Further, since the stock portion 58 has a structure that is open upward, the operator can easily take out the sheet-shaped X-ray photographic film stocked in the stock portion 58.

FIG. 2 is a sectional view of the feeding rollers 27 and 29 of the feeding device and the periphery thereof.
The feeding device according to the present embodiment will be described with reference to FIGS. 3 and 4 which are perspective views of 7, 29 and the periphery thereof.

The feeding device is a sheet-shaped radiographic film F
And a suction plate 42, 4 which sucks the sheet-shaped X-ray photographic film F housed at the top in the housing part 49 and sends it to the feed rollers 27, 29.
4, feed rollers 27 and 29 for feeding the sheet-shaped X-ray film F sent by the suction disks 42 and 44, and sheet-shaped X-ray film F fed by the feed rollers 27 and 29. An eccentric roller 28 provided for detecting the thickness, and driven rollers 22, 24 that rotate while pressing the sheet-shaped X-ray photographic film F fed from the feeding rollers 27, 29 or the eccentric roller 28 from above. 23.

Feed rollers 27 and 29 and eccentric roller 28
Are fitted on a common shaft 26. Feed roller 27,
The center of 29 and the center of axis 26 coincide. Eccentric roller 28
Is located exactly halfway between the feed roller 27 and the feed roller 29. The cross-sectional shape of the eccentric roller 28 includes a semicircle with a small radius centered on the center of the shaft 26, a sector with a large radius DL that is diametrically opposite to the center of the shaft 26 and centered on the center of the shaft 26, The shape includes two triangles between the small radius semicircle and the large radius DL sector. The cross-sectional shape of the feed rollers 27 and 29 is a star-shaped roller having an outer diameter Dx and a bottom groove diameter Dn. Since the cross-sectional shapes of the feed rollers 27 and 29 are star-shaped, the leading end of the fed sheet X-ray photographic film F is discarded to prevent double feed. The fan-shaped radius DL of the eccentric roller 28 is larger than the outer diameter Dx of the feed rollers 27 and 29.

The driven rollers 22, 23, and 24 share a common shaft 2.
It is fitted to 1. Then, the driven rollers 22, 23,
The center of 24 and the center of shaft 21 coincide. The shaft 21 is held movably only in the vertical direction as shown in FIG. When the fan shape of the eccentric roller 28 comes up, the fan-shaped portion of the eccentric roller 28
, The driven rollers 22, 23, 24 are pushed upward. At this time, the distance PA from the predetermined position of the center AC of the shaft 21 is detected to detect any one of non-conveyance, single-sheet conveyance, and double conveyance of the fed sheet X-ray photographic film F. When the sheet X-ray photographic film F being fed is detected as one of non-conveyance, single-sheet conveyance, and double feed, the shaft 21 moves freely in the vertical direction as shown in FIGS. Although it is possible, usually, as shown in FIGS.
It is held at the upper standby position by the standby signal.

This is detected as follows. An intermediate position between the position where the driven roller 23 is directly pushed up in the fan-shaped portion of the eccentric roller 28 and the position where the driven roller 23 is pushed up via the sheet-shaped X-ray photographic film F having an average thickness of one sheet. The distance from the predetermined position up to PL is defined as PL. Further, the position where the driven roller 23 is pushed up through the sheet-shaped X-ray photographic film F having the average thickness of one sheet at the fan-shaped portion of the eccentric roller 28 and the sheet-shaped X-ray having the average thickness of two sheets The distance from a predetermined position to an intermediate position between the position where the driven roller 23 is pushed up through the photographic film F and the intermediate position is PH. If the distance PA is equal to or less than PL, it is determined that there is no conveyance. If the distance PA is equal to or more than PL and equal to or less than PH, it is determined that one sheet is to be transported.

Next, the sheet X by the suction plates 42, 44
Regarding the feeding operation of the radiographic film F, the suction plates 42, 4
FIG. 5 to FIG. 7, which are explanatory diagrams for explaining the sheet X-ray photographic film F feeding operation by No. 4;
explain.

First, as shown by the dotted line in FIG.
2 and 44 are lowered and pressed against the uppermost sheet-shaped X-ray film F of the sheet-shaped X-ray film F accommodated in the accommodating portion 49, and the uppermost sheet-shaped X-rays are sucked by the suction disks 42 and 44. The photographic film F is sucked. And FIG.
As shown by the solid lines, while sucking the sheet-shaped X-ray photographic film F by the suction plates 42, 44, the suction plates 42, 44
The suction disks 42 and 44 are moved up to the home position. Also at this time, since the cross-sectional shapes of the feed rollers 27 and 29 are star-shaped, by rotating the feed rollers 27 and 29 in the reverse direction, the leading end of the sheet-shaped X-ray photographic film F is loosened, and the suction plates 42 and 44 are removed. The sheet-shaped X-ray film F attached to the sheet-shaped X-ray film F that has been sucked is dropped to the original storage portion 49.

Next, as shown by the dotted line in FIG.
While sucking the sheet-shaped X-ray photographic film F by 2, 44, the suction plates 42, 44 are moved rearward at the home positions of the suction plates 42, 44 to make the sheet-shaped X-ray photographic film F convex. Next, as shown by the solid line in FIG. 6, while sucking the sheet-shaped X-ray photographic film F by the suction disks 42 and 44, the suction disks 42 and 44 are tilted forward at the home positions of the suction disks 42 and 44. The sheet-shaped radiographic film F is warped. By such a tilting operation, the sheet-shaped X-ray film F attached to the sheet-shaped X-ray film F sucked by the suction disks 42 and 44 is dropped into the original storage portion 49. Also at this time, by rotating the feed rollers 27 and 29 in the reverse direction, the leading end of the sheet-shaped X-ray photographic film F is loosened, and the sheet-shaped X-ray photographic film F attached to the suction plates 42 and 44 is attached to the sheet-shaped X-ray photographic film F. The X-ray photographic film F is dropped into the original storage section 49.

Next, as shown by the dotted line in FIG.
At the home position of the suction disks 42 and 44, the suction disks 42 and 44 are made parallel to the bottom surface of the storage portion 49 while sucking the sheet-shaped radiographic film F by 2 and 44.

Then, while the sheet-shaped radiographic film F is sucked by the suction disks 42 and 44, the feeding rollers 27 and
It is sent to 29. Also at this time, the feed rollers 27 and 29
Is rotated in the reverse direction to loosen the front end of the sheet X-ray photographic film F, and the sheet X-ray photographic film F attached to the sheet X-ray photographic film F sucked by the suction plates 42 and 44 is stored in the original storage position. The unit 49 is dropped.

Then, the leading end of the sheet-shaped X-ray photographic film F is placed on the guide 31 of the transport section 53. At the same time
By rotating the feeding rollers 27 and 29 forward, the sheet X-ray photographic film F is fed toward the conveying unit 53, and the holding of the shaft 21 at the standby position is released. And immediately the suction plate 4
The sheet X-ray photographic film F is separated from the suction plates 42 and 44 by back-flowing the air from the sheets 2 and 44, and the feeding rollers 27 and 29 and the sheet X-ray photographic film F are separated as shown by the solid line in FIG. The sheet-shaped X-ray photographic film F is fed toward the transport unit 53 by the driven rollers 22, 23, and 24 pressed from above.

During the feeding, when the driven rollers 22, 23, 24 are pushed upward by the fan-shaped portion of the eccentric roller 28 via the sheet-shaped X-ray film F, the shaft 21
, The distance PA from the predetermined position of the center AC of the sheet X is detected, and as described above, any one of the non-conveyance, the one-sheet conveyance, and the double conveyance of the fed sheet X-ray photographic film F is detected.
If it is detected that one sheet is conveyed, the feeding is continued, and if it is detected that there is no conveyance, the feeding operation is performed again, and it is detected that there is no conveyance. In this case, the sheet-shaped X-ray photographic film F is returned to the storage portion 49 by rotating the feeding rollers 27 and 29 in the reverse direction, and then again.
Perform the feeding operation. However, when the detection of the non-conveyance continues two times continuously and when the detection of the double feed continues three times, the feeding operation is not performed again, and the display indicating the feeding failure is displayed on a display unit (not shown). indicate. Further, when the alarm oscillation mode is set, the alarm indicating the feeding failure or the synthesized voice may indicate the feeding failure.

The detection of whether the fed sheet X-ray photographic film F is one of non-conveyance, single-sheet conveyance, and double conveyance is completed, and the detection result indicates that the sheet X-ray photographic film F In the case of single-sheet conveyance, the sheet-shaped radiographic film F to which the first conveyance roller pair 32 of the conveyance unit 53 is fed
, A standby signal for causing the shaft 21 to wait upward is issued, whereby the shaft 21 is held at the upper standby position. Then, as shown in FIG. 4, the sheet-shaped X-ray photographic film F is transported by the first transport roller pair 32, the second transport roller pair 33, and the third transport roller pair 34 of the transport unit 53, and the image is read. .

[0044]

According to the present invention, a sheet-like developed silver image film obtained by developing a silver halide X-ray photographic film by the feeding apparatus, the image reading apparatus or the image reading system is stored in a poor condition. The operator does not need to frequently separate the developed silver image film sheet by sheet, even if the The device, the image reading device, or the image reading system does not need to be clear, which is convenient.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a digitizer (image reading device) according to an embodiment.

FIG. 2 is a cross-sectional view of feed rollers 27 and 29 of the feed device according to the embodiment and the vicinity thereof.

FIG. 3 is a partial perspective view centering on a feeding roller 27 in a state where a feeding device is set in a setting unit 52 of the embodiment.

FIG. 4 is a partially enlarged view mainly showing a feeding roller 27 in a state where a feeding device is set in a setting portion 52 of the embodiment.

FIG. 5 is a view for explaining the operation of the suction board (part 1).

FIG. 6 is a view for explaining the operation of the suction board (part 2).

FIG. 7 is a view for explaining the operation of the suction board (part 3).

[Explanation of symbols]

 42, 44 Suction board 49 Storage section 51 Scanning optical device 52 Set section 53 Transport section 54 Light receiving device 55 Guide 56 Signal processing section 57 Blower 58 Stock section

Claims (12)

[Claims] An accommodating portion capable of accommodating a plurality of sheet-shaped developed silver image films obtained by developing a silver halide X-ray photographic photosensitive film, and a sheet-like developing device accommodated in the accommodating portion. By performing a separating operation for separating one sheet of the developed silver image film from the silver image film,
Feeding means for feeding, and double feeding detecting means for detecting double feeding of the sheet-shaped developed silver image film fed by the feeding means, wherein the double feeding detecting means has detected double feeding. If
Returning the sheet-shaped developed silver image film in which the double feed has been detected to the storage portion, and causing the feeding means to perform the separation operation again to feed the sheet-shaped developed silver image film. apparatus. 2. When the double feed detecting means detects a double feed in all of a predetermined plurality of continuous feedings by the feeding means, the feeding by the feeding means is stopped, and a feeding failure is detected. 2. The sheet-like developed silver image film feeding device according to claim 1, wherein: 3. A non-conveyance detecting means for detecting non-conveyance (that no sheet-like developed silver image film has been fed) by said feeding means, wherein said non-conveyance detection means detects non-conveyance. 3. The sheet-like developed silver image film feeding device according to claim 1, wherein when the sheet is detected, the feeding unit is caused to perform the separation operation again to feed the sheet. 4. The sheet-like developed silver image film feeding apparatus according to claim 3, wherein said double feed detecting means also functions as said non-conveyance detecting means. 5. When the non-conveyance detecting means detects non-conveyance in all of a plurality of predetermined continuous feedings by the feeding means, the feeding by the feeding means is stopped, and a feeding failure is detected. The sheet-like developed silver image film feeding device according to claim 3 or 4, wherein: 6. The sheet-like developed silver image film feeding apparatus according to claim 1, wherein said feeding means performs said separating operation by using a suction cup. Feeder. 7. An image reading apparatus having image reading means for reading an image recorded on a sheet-like developed silver image film fed by said feeding means. Item 7. The sheet-like developed silver image film feeding device according to any one of Items 6. 8. A feeding device base on which the sheet-shaped developed silver image film feeding device according to claim 7 can be detachably installed, and a sheet-shaped developed silver image film feeding device installed on the feeding device base. An image reading unit for reading an image recorded on the sheet-like developed silver image film fed by the apparatus. 9. The image reading apparatus according to claim 8, wherein the feeding device table can also be detachably provided with a manual feeding device that feeds the sheet-like developed silver image film one by one by hand. apparatus. 10. A sheet-like developed silver image film feeding device according to claim 1, wherein said sheet-like developed silver image film is fed on said sheet-like developed silver image film fed by said feeding means. An image reading apparatus comprising: an image reading unit that reads an image. 11. An image forming apparatus comprising: an ID information acquiring unit for acquiring ID information for identifying each sheet-shaped developed silver image film in an order in which the film is transported on the storage unit; 10. The image reading apparatus according to claim 9, wherein the ID information is associated with an image read by the image reading unit according to an order in which the ID information is read by the image reading unit. 12. An image reading apparatus according to claim 11,
An image reading system, comprising: a storage device that stores an image read by the image reading device and ID information associated with the image in a corresponding manner.