JPH0764196A - Image recorder - Google Patents

Abstract

PURPOSE:To obtain an image recorder capable of surely holding a porous filter wound round the peripheral surface of a drum so that attractive force may be uniformized, and improving working efficiency at the time of exchanging the filter. CONSTITUTION:Since the thin plate-like porous filter 310 wound round the peripheral surface of the drum 300 drops off in the case it is only wound round the drum 300, it is coated with a thin fabric cover 312 having elasticity and formed like a seamless tube. It is desirable to use the stretch mesh cover such as nylon mesh as the covet 312. Owing to the cover 312, the filter 310 is prevented from dropping off. Since the filter 310 is held in a state where the upper layer of the filter 310 is coated with the cover 312 like the nylon mesh tube, the filter 310 is easily attached/detached by removing the cover 312 in the case of exchanging the filter 310. Thus, workability for maintenance is remarkably improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises exposure means for adsorbing at least a document and exposing the document image in a slit state by sequentially guiding the document in the attracted state to an exposure position. The present invention relates to an image recording device that guides light to a photosensitive material via an optical system to record an original image on the photosensitive material.

[0002]

2. Description of the Related Art In order to store a huge amount of originals, these originals have been stored in a microfilm by a microfilm photographing device and stored.

In this recording procedure, a document is inserted through the insertion port and wound around the drum peripheral surface which serves as a document support base. A plurality of circular holes are provided on the circumferential surface of the drum, and the original is sucked by the circular holes by sucking the air inside the drum by the suction means. As a result, the document is guided to the exposure position while being in close contact with the drum. For this original, the original image is measured with a photometric sensor before reaching the drum, the illuminance of the light source is controlled based on the photometric value, and the reflected light of the original reaching the exposure position is, for example,
Slit exposure and guide to the exposed surface of the microfilm,
The microfilm is moved in synchronization with the reduction ratio of the photographed document. This allows the document image to be recorded (captured) on the microfilm with an appropriate amount of light.

By the way, when a document is directly attracted to the circular hole provided on the peripheral surface of the drum, the attracting force at the position corresponding to the circular hole is strong and the others are weak. Therefore, a porous filter is wound around the peripheral surface of the drum to make the suction force uniform.

[0005]

However, since the filter is attached to the peripheral surface of the drum with an adhesive or the like,
The replacement work during maintenance becomes very complicated.
This replacement has to be done periodically because paper dust adheres, and each time it is necessary to peel off the filter, remove the adhesive remaining on the drum peripheral surface, and apply the adhesive again. , Maintenance workability is poor.

In consideration of the above facts, the present invention ensures the retention of the porous filter wound around the drum circumferential surface in order to make the adsorption force uniform, and at the same time improves the work efficiency during replacement. The aim is to obtain a recording device.

[0007]

According to a first aspect of the present invention, an original document is tangentially rotated while rotating a cylindrical drum having a plurality of holes penetrating inside and outside thereof on a peripheral surface at a predetermined rotation speed. From the hole, and at least the original document is attracted by the suction force from the hole, and the original document in the attracted state is sequentially guided to the exposure position by slit exposing the original image. An image recording device for recording a document image on a photosensitive material by guiding reflected light to the photosensitive material via an optical system, which is wound around the peripheral surface of the drum, and the attraction force of the document by the circular hole is applied to the drum. A porous filter that is flat when expanded to spread the entire collection, and a mesh cover that is knitted into a tubular shape and that maintains the state in which the porous filter is wound around the peripheral surface of the drum by elastic force. There is.

The invention according to claim 2 is characterized in that the mesh cover has a nylon mesh structure and is seamless.

[0009]

According to the invention described in claim 1, a porous filter is wound around the peripheral surface of the drum, whereby the suction force of the circular holes is diffused by the porous filter, Adsorption force is generated uniformly over the entire peripheral surface. The porous filter also has a function of adsorbing paper dust, and can reduce the amount of paper dust floating in the device.

Since the porous filter has a flat plate shape when unfolded, the wound state is maintained by the mesh cover after winding the porous filter. Since this mesh cover is elastic, the elastic filter reliably holds the porous filter.

On the other hand, when it is necessary to replace the porous filter, since the mesh cover is tubular, it is displaced along the axial direction of the drum. In this state, the porous filter can be easily attached and detached, so that replacement work with a new filter (or a filter that has been used up to now may be cleaned) becomes easy. After wrapping the new porous filter, the replacement work is completed by covering the mesh cover again.

As described above, since the porous filter is held by being covered with the mesh cover, the efficiency of the replacement work of the porous filter can be improved.

According to the second aspect of the present invention, since the mesh cover has a nylon mesh structure and is seamless, the cover surface is smooth and the original is wavy when attracted. It does not affect the image quality.

[0014]

【Example】

(System Configuration) FIG. 1 shows a microfilm photographing apparatus 10 (hereinafter, referred to as an image recording apparatus of the present invention, which is applicable.
The image capturing apparatus 10) is shown.

In this photographing apparatus 10, one side surface (the left side in FIG. 1) 12A of the casing 12 is the front surface, and the operating portion 14
Is provided. The operator faces the operation unit 14 to operate it.

The operation unit 14 is composed of a document table 18 on which a document 16 (see FIG. 2) is placed, and a feeder unit 20 for feeding the document into a document insertion port 12B provided in the casing 12.

The document 16 placed on the document table 18 is fed to the feeder section 20 by driving a belt conveyor 24 which is stretched around a pair of rollers 22. A shooting start key 26 is attached near the side of the document table 18, and the shooting start key 26 is attached.
The belt conveyor 24 can be operated by operating the.

The upper surface of the feeder section 20 is slightly inclined toward the operator side, and an operation panel 28 is provided. The operation panel 28 is provided with operation keys for inputting information described in the document 16 and for inputting information regarding photographing, and a display section for displaying information regarding photographing.

The feeder unit 20 includes a plurality of roller pairs 30.
The document 16 sent to the feeder section 20 by the belt conveyor 24 is nipped by the pair of rollers 30 and conveyed from the document insertion port 12B into the apparatus.

A bar code reading section 32 is arranged near the entrance of the feeder section 20. In the bar code reading unit 32, a bar code 34 attached in advance to the document 16 conveyed by the belt conveyor 24 or the roller pair 30 is used.
(See FIG. 2) is read.

The information of the bar code 34 is the entry order (serial number) at the time of data entry of the information described in the manuscript 16.

The information described in the manuscript 16 is, for example, a registration date, classification, store number, subject, account number, depositor name, trustee code, autograph code, in the case of an account transfer voucher at a financial institution. There is a house company code and a contractor number.
Hereinafter, as the manuscript 16 of the present embodiment, an account transfer slip in this financial institution will be described as an example.

As shown in FIG. 2, the original 16 is provided with a sticker 36 having a bar code 34 attached thereto in the order of receipt. In this state, as shown in FIG.
Data entry is performed and sent to the host computer 40 via a storage medium 38 such as a floppy disk,
Centrally manage individual information at each branch of a financial institution.

As shown in FIG. 1, the photographing device 10 includes
Each of them is connected to a computer 42, and the information of the document 16 to be photographed is transmitted from the host computer 40 to the computer 42 via the storage medium 38.

Therefore, when the bar code reader 32 reads the bar code 34, the information of the document 16 corresponding to the bar code information (serial number) is transferred to the computer 4.
It is designed to be read from 2. A large display (not shown) is provided on the upper surface of the photographing device 10, and the information of the document 16 read from the computer 42 is displayed. Therefore, the operator can visually check the information written on the actual document 16 placed on the document table 18 with the document information on which data entry has been performed.

As a result of this collation, the photographing start key 26 is operated when they coincide.

A magazine loading section 200 is arranged above the photographing apparatus 10. The magazine loading unit 200 has a substantially mountain shape, and the magazines 100 are loaded on the slopes 200A and 200B, respectively. The magazine 100 has a long microfilm 1
02 is accommodated and wound around a pair of reels 104. The portion of the microfilm 102 that is stretched between the reels 104 is pulled out from the magazine 100 and wound around the photographing roller 202 of the magazine loading unit 200. The winding position of the photographing roller 202 is the exposure position.

On the other hand, a document detection sensor 46 is provided near the document insertion port 12A to detect the presence or absence of the document 16 inserted from the document insertion port 12B. A photometric sensor 48 is provided on the downstream side of the document detecting sensor 46 at a predetermined interval, and the recording surface of the document 16 is measured a predetermined time after the leading edge of the document 16 is detected by the document detecting sensor 46. It is supposed to do.

The drum 300 is provided at the center of the photographing device 10.
Is provided, and is rotated in the clockwise direction in FIG. 1 by the driving force of the driving means (not shown).

The inside of the drum 300 is hollow, and a plurality of small circular holes 302 (see FIG. 3) are provided on the peripheral surface.
Here, a negative pressure is applied to a part of the inner side of the drum 300, so that the conveyed document 16 can be attracted to be wound around the drum 300. Details of the internal structure of the drum 300 will be described later.

The original 16 is wound around the drum 300 for about half a turn, is turned by approximately 180 °, is peeled off from the drum 300, and is discharged to the stacker 50 disposed below the operating portion 14. It is like this. A lamp 58 is arranged corresponding to a region around the original 16 on the drum 300, and light emitted from the lamp 58 is applied to the original 16 on the drum 300. Here, the predetermined position which is wound around the drum 300 is the exposure position, and the optical system 400 corresponds to it.

The lamp 58 is turned on with the illuminance adjusted based on the value detected by the photometric sensor 48. In addition, in the vicinity of the lamp 58, the illuminance sensor 52
Is attached to detect the illuminance of the lamp 58.

As a result, the reflected image of the original document that has reached the exposure position is transferred by the optical system 400 to the photographing roller 202.
Is guided to the exposure position. in this case,
The original 16 is slit-exposed, and the rotation speed of the drum 300 (the linear speed of the original 16) and the rotation speed of the photographing roller 202 (the linear speed of the microfilm 102) are synchronized. .

Therefore, the original 16 is wound around the drum 300 and conveyed so that the original 1 is subjected to slit exposure.
The six images (data) are recorded (captured) on the microfilm 202. In addition, this shooting size is
It becomes a reduced size.

(Structure for controlling the light amount of the lamp 58) As shown in FIG. 4, the operation panel 28, the photographing start key 2
The document detection sensor 46, the photometric sensor 48, the illuminance sensor 52, and the lamp 58 are connected to the photometric control device 54.

Document 1 conveyed by feeder unit 20
A plurality of document detection sensors 46 for detecting 6 are arranged along the direction (width direction) orthogonal to the insertion direction of the document 16 (five in this embodiment). Since the document 16 is fed with the left end in the insertion direction as a reference, the width of the document 16 can be recognized to some extent by the number of documents 16 detected by the plurality of document detection sensors 46. As the document detection sensor 46, a transmissive photoelectric sensor in which a light projecting section and a light receiving section are arranged with the conveyance path of the document 16 applied in between in the present embodiment, as well as, for example, the document 16 when the document 16 passes therethrough. A reflection type photoelectric sensor that receives the light reflected by 16, a limit switch that determines the presence or absence of the document 16 by a mechanical operation, and the like are applicable.

In the photometric control device 54, the illuminance sensor 52 controls the lamp 58 to a predetermined illuminance until the document detection sensor 46 detects the leading edge of the document 16.
That is, the illuminance setting knob 56 is arranged on the operation panel 28, and the illuminance according to the type of the original 16 can be selected by operating the illuminance setting knob 56. With the illuminance selected by the illuminance setting knob 56 as a reference, the photometric control device 54 feedback controls the illuminance of the lamp 58 (first mode).

The type of the original 16 is, for example, blank paper,
There are blueprints, tracing papers, catalogs, etc., and they correspond to the symbols attached around the illuminance setting knob in advance.

Although the optimum illuminance at the time of exposure is different for each original 16, the standard illuminance can be predicted. Therefore, this standard illuminance (or 9 of that illuminance
By controlling the illuminance of the lamp 58 in advance to about 0%), it is possible to quickly control the lamp illuminance at the start of shooting.

When the leading edge of the original 16 is detected by the original detection sensor 46, the photometric control device 54 is arranged to measure the image surface of the original 16 by the photometric sensor 48 after a predetermined time. The photometric timing by this photometric sensor 48 is
The distance between the document detection sensor 46 and the photometric sensor 48, the document 1
6 and the original 1
The length is also changed according to the length of 6 in the conveyance direction.

That is, since the photometric area of the photometric sensor 48 corresponds to a part of the original 16 in a spot manner, the original 16
Depending on the size of, the photometric area may not be entirely on the image surface of the original 16. For this reason, in this embodiment, two types of photometric timing (short span and long span) after detecting the leading edge of the original 16 are set, and the original 1
6 is selected according to the size (see FIG. 5).

First, as shown in FIG. 5A, the original 1
When the length of 6 in the conveyance direction is short, the time from the start of photometry to the end of photometry is short, so the photometric value at the position immediately after the rising of the shortest document is applied. On the other hand, as shown in FIG. 5B, when the length of the document 16 in the transport direction is long, there is a region where the photometric value is stable for a predetermined time after the rising,
The photometric value after a lapse of a predetermined time after rising is applied. As a result, a more accurate photometric value can be obtained for a particularly long original 16 as compared with the case where the photometric time is set to one location (one time) regardless of the length of the original 16.

The photometric value at the photometric time is held as it is, and the photometric control device 54 determines the illuminance of the lamp 58 based on the photometric value, and further performs a predetermined correction according to the width dimension of the document 16. (See FIG. 6), the lamp 58 is turned on with a voltage according to the corrected illuminance (second
Mode).

That is, depending on the width dimension of the original 16, the photometric region may extend in the width direction. Therefore, by correcting the amount of photometric measurement on the peripheral surface of the drum 300, the optimum value can be obtained. it can.

During the second mode, the original 16 passes through the exposure position of the drum 300, and the photographing operation is performed under a constant illuminance.

Next, when the rear edge of the original 16 is detected by the original detection sensor 46, the photometric control device 54 causes the lamp to turn on after a predetermined time (time until the rear edge of the original 16 passes the exposure position). 58 is returned to the standard illuminance. In this case, if the second mode is immediately returned to the first mode, the feedback control in the first mode is immediately started, so that the return to the standard illuminance is delayed.

Therefore, in this embodiment, the lamp illuminance at the time of switching from the first mode to the second mode is stored, and this lamp is lit after a lapse of a predetermined time after the trailing edge of the original 16 is detected. The voltage is set according to the illuminance (third mode). Thereby, the illuminance of the lamp 58 can be quickly brought to a value close to the standard illuminance.

The third mode is controlled for a predetermined short time, and when this time elapses, it returns to the feedback control based on the detection value from the illuminance sensor 48 (fourth mode = first mode).

By the way, as shown in FIG.
Then, a hole 16A for a tractor feeder is provided at the leading end in the conveying direction.
There are those provided with. When the position of the hole 16A and the detection position of the document detecting sensor 46 (see the reading locus shown by the one-dot chain line in FIG. 7) coincide with each other, one document 16
Is counted as two images, and the shooting timing may be incorrect (see signal A in FIG. 8). Therefore, the photometric control device 5
In FIG. 4, the signal B which is turned on for a predetermined time is generated by the fall of the detection signal A of the document detection sensor 46, and the signal C obtained by ORing the signals A and B is applied as the document detection signal. is doing. As a result, one original can be recognized as one regardless of the original 16 with and without holes. In this case, the detection of the trailing edge is slightly delayed, so it is necessary to consider it accordingly.

The structure of each part of the magazine 100 and the photographing device 10 will be described in detail below. (Magazine 100) FIGS. 9 and 10 show a magazine 100 applied to this embodiment.

The magazine body 106 is of a box type in which a side wall 110 is provided upright on the periphery of the base portion 108, and the microfilm 102 wound on the reel 104 is accommodated therein.

A lid 112 is attached along the protruding tip of the side wall 110 of the magazine body 106. Lid 11
2 has substantially the same shape as the base portion 108. A substantially U-shaped bracket 114 having a pair of legs 114A is attached from the base 108, and an upper end 114B of the bracket 114 faces the lid 112.

A lock member (not shown) which can be engaged with the upper end portion 114B of the bracket 114 is provided on the back surface of the lid 112. The lock member is the lid 1
It is connected to a disk-shaped lock operating portion 118 arranged outside the disk 12. That is, the lock operation part 118 is accommodated in the circular recess 112A recessed from the outside of the lid 112 toward the inside of the magazine, and a through hole (not shown) is formed at the center of the recess 112A. The lock operation portion 118 and the lock member are connected by the screw penetrating therethrough.

Here, the lid 112 is attached to the magazine body 106.
By placing the lock member 118 on the side wall 110 and rotating the lock operation portion 118, the lock member and the upper end portion 114B of the bracket 114 are engaged with each other, and the lid body 112 can be fixed.

The microfilm 102 has a long shape,
Both ends in the longitudinal direction are locked to a cylindrical base shaft (not shown) that is the center of rotation of the reel 104. A semicircular cutout 104B is formed around the through hole 104A formed in the base shaft so as to be continuous with the through hole 104A.

Here, in the new magazine 100, the microfilm 102 is wound around the reel 104 on one supply side, and is wound around the reel 104 on the other winding side each time photographing is performed. There is.

The base 108 of the magazine body 106 is formed with a circular protrusion 108A for determining the arrangement position of the reel 104. A through hole 10 penetrating the front and back surfaces of the base portion 108 is formed at the center of the protruding portion 108A.
8B is provided.

Gears 120 are coaxially mounted on the protrusions 108A. In the center of the gear 120,
The shaft 120A is integrally formed so as to penetrate the front and back surfaces of the gear 120, and a portion protruding on the back surface side (the side facing the protruding portion 108A) is pivotally supported by the through hole 108B.

The back side of the base portion 108 has a protrusion 1
The circular recess 108 corresponding to the portion where 08A is formed.
C is formed, and the rotation transmission plate 122 is housed in the recess 108C. The shaft 120A is attached to the rotation transmission plate 122 with a screw 124, and is attached so as to sandwich the base portion 108 at a predetermined interval. As a result, when the rotation transmission plate 122 rotates, the gear 120 integrally rotates.

The rotation transmission plate 122 is also the lid 112.
It is also provided on the side and is connected to the shaft 120A of the gear 120. The rotation transmission plate 122 on the lid 112 side
Is applied at the time of front-back reversal loading shown in FIG.

The shaft 120 protruding to the surface side of the gear 120
There are two reel positioning shafts 126 around A respectively.
Are formed to project.

Here, when loading the reel 104,
The shaft 120A of the gear 120 is set so as to be inserted into the through hole 104A of the base shaft. At this time, since the reel positioning shaft 126 is housed in the notch 104B formed around the base shaft, the gear 120 and the reel 104 are Will be rotated together. That is, the rotation of the rotation transmission plate 122 can rotate the reel 104 via the gear 120.

A locking claw 128 is associated with each tooth 120B of the gear 120. A circular hole is attached to an intermediate portion of the locking claw 128, and a shaft 108D protruding from the base 108 is pivotally supported. Therefore, the locking claw 12
8 is rotatable around the circular hole 108D. The shaft 1
A torsion coil spring 130 is attached to 08D, one end of which is locked to the base portion 108 and the other end of which is locked to a locking claw 128. The biasing force of the torsion coil spring 130 causes the claw 128B to move to the gear 120. Is engaged with the tooth portion 120B. In this meshed state, the gear 12
In the case of 0, the rotation of the microfilm 102 to the reel 104 is blocked, and the rotation of the other is blocked by the claw portion 128B.
Moves against the urging force of the torsion coil spring 130 and rides over the tooth portion 120B, so that it can rotate freely.

In this embodiment, as shown in FIG. 10, both the supply side reel 104 and the winding side reel 104 wind the film 102 in the same direction (clockwise in plan view of FIG. 10). direction). Therefore, the reel 10 on the supply side
In No. 4, rotation of the microfilm 102 in the drawing direction is free and rotation in the winding direction is blocked. Conversely, in the reel 104 on the winding side, rotation of the microfilm 102 in the winding direction is free and rotation in the drawing direction is not performed. Be blocked.

Pins 128C are attached to the ends of the locking claws 128 on the opposite side to the claws 128B, and are housed in elongated holes 132A provided at both ends of the elongated rod-shaped arm 132, respectively. The arm 132 includes the base portion 108,
It is accommodated and held in a slit formed between the base 114 and the leg 114A of the bracket 114 for fixing the lid 112 attached to the base. Here, by moving the arm 132 in the width direction (direction along the short side of the arm 132) against the biasing force of the torsion coil spring 130, the locking claw 128 is moved to the circular hole 12.
The claw portion 128B can be separated from the tooth portion 120B by rotating around 8A.

The arm operation base 13 is attached to the leg 114A of the bracket 114 through the shaft 134 at the middle of the leg 114A in the height direction.
6 is attached. An end of the arm operation base 136 facing the base 108 is bent at an acute angle to form a slope 136AA. A pressing member 138 corresponds to the slope portion 136A. Pressing member 138
Is composed of a block 138B provided with a slope portion 138A corresponding to the slope portion 136A, and a push rod 138C protruding from the block 138B and penetrating a circular hole 108E provided in the base portion 108. Push rod 13
The protruding tip of 8C is exposed from the outside of the base portion 108, and by pressing this push rod 138C, the arm 132 can be moved against the biasing force of the torsion coil spring 130. That is, the engagement and separation of the tooth portion 120B of the gear 120 and the claw portion 128B of the locking claw 128 can be operated from the outside of the magazine 100.

The push rod 138C is pressed by the pin 204 (see FIG. 11) provided in the magazine loading section 200 at the same time when the magazine 100 is loaded at a predetermined position.

A rectangular shutter window 110A is formed on the linear portion of the side wall 110. When the shutter window 110A is opened, a part of the microfilm 102 is projected in a loop shape (see FIG. 10).

The shutter window 11 is provided outside the side wall 110.
A rib 110B is formed so as to surround 0A and a rectangular recess 110C is provided. This recess 110
In C, a pair of slide plates 140 having a role of a shutter curtain are arranged. The slide plate 140 is slidable along the side wall 110 in directions approaching and separating from each other, and can open and close the shutter window 110A. The protruding height of the rib 110B is slightly higher than the wall thickness of the slide plate 140, and the fixing plate 142 is attached to the protruding tip of the rib 110B by a screw 144.

A rectangular window portion 142A corresponding to the shutter window 110A is also formed on the fixed plate 142, and the slide plate 140 is slid between the window portion 142A and the shutter window 110A. It will be.

On the inner side of the slide plate 140 magazine,
An arm portion 140A is formed in which the middle portion is bent in a substantially L-shape in opposite directions. A circular hole 140B in which the connecting shaft 146 is axially supported is formed in each of the bent front end portions. The connecting shaft 146 has a length protruding from the circular hole 140B, and one end of the connecting arm 148 is axially supported by each protruding portion. The other end of each of the connecting arms 148 is pivotally supported by a common shaft 150.

The shaft 150 is attached to a slide opening / closing base 152 arranged on the base portion 108 of the magazine 100. The slide opening / closing base 152 is housed between mutually parallel ribs 108F formed along the vertical direction of the base portion 108 of the magazine 100 (direction orthogonal to the linear side wall 110).
And is slidable in the vertical direction.
Therefore, when the slide opening / closing base 152 is slid, the shaft 150 is moved in the direction perpendicular to the shaft. When the slide opening / closing base 152 is separated from the shutter window 110A, the connecting arms 148 have a narrower included angle, so that the slide plates 140 are brought into close contact with each other, and the shutter window 11 is closed.
0A can be closed. On the other hand, when the slide opening / closing base 152 approaches the shutter window 110A, the connecting arms 148 widen the included angle, so that the slide plates 140 can be separated from each other and the shutter window 110A can be opened.

On the outer surface of the slide plate 140, the protrusion 1
40C is formed. The projecting portion 140C is moved together with the slide plate 140 after being loaded in the magazine loading portion 200, and can be engaged with the engaging means on the magazine loading portion 200 side when the shutter window 110A is fully opened. As a result, the magazine 100 is held in the magazine loading section 200.

A torsion coil spring 154 is attached to the common shaft 150, and both ends of the torsion coil spring 154 are locked to the connecting arms 148. The biasing force of the torsion coil spring 154 causes the slide opening / closing base 152 to
It is biased in a direction away from the shutter window 110A.

Corresponding to the slide opening / closing base 152, on the back side of the base portion 108 (outside the magazine 100),
A slide operation unit 156 is provided. Further, in the base portion 108 where the slide opening / closing base 156 is arranged,
The long hole 108G is formed, and the slide operation unit 1 is provided.
56 and the slide opening / closing base 152 are connected by a screw 158. Since the screw 158 penetrates the elongated hole 108G, it does not interfere with the base portion 108 when the slide opening / closing base 152 slides.

Therefore, by operating the slide operating portion 156, the slide plate 140 is moved through the slide opening / closing base 152, the connecting arm 148 and the arm portion 140A.
Can be opened and closed.

The slide operation portion 156 has a circular hole 156A.
Is provided, and when the magazine 100 is loaded at a predetermined position of the magazine loading unit 200, the pin 206 (see FIG. 11) on the magazine loading unit 200 side is inserted into the circular hole 156A. By moving the pin 206, the slide operation unit 156 is operated.

Here, the pin 206 on the magazine loading section 200 side inserted into the circular hole 156A and the push rod 13
The relative position with respect to the pin 204 on the magazine loading section 200 side inserted into the circular hole 108E through which 8C is exposed is determined, and even if an attempt is made to load the magazine 100 at a predetermined position,
When the position of the slide operation portion 156 is displaced (the shutter window 110A is opened), the loading operation cannot be performed. This allows the magazine 100
The condition and the reliability of loading are ensured.

A crank-shaped guide bracket 160 is placed on the slide opening / closing base 152, and is fastened together by screws 158 connecting the slide opening / closing base 152 and the slide operating portion 156. The guide bracket 160 is separated from the slide opening / closing base 152, and one end of a shaft 150 that pivotally supports the connecting arm 148 is engaged with the parallel portion.

The guide bracket 160 includes a lid 11
It is connected to the slide operation unit 156 provided on the second side. The slide operating portion 156 on the lid 112 side has a function similar to that of the slide operating portion 156 on the base 108 side, and is applied during the front-back reversal loading shown in FIG. See below).

A roller 164 made of synthetic resin is rotatably attached to the tip of the guide bracket 160 (on the side close to the shutter window 110A) via a shaft 162. The microfilm 102, which is stretched between the reels 104, is wound around the roller 164.

When the slide operating portion 156 is operated to open the shutter window 110A, the guide bracket 160 is moved in the direction of the shutter window 110A along with the movement of the slide plate 140 (movement in the opening direction). The shutter window 110A is projected to the outside. In this case, the length of the guide bracket 160 is determined so that there is no interference between the movement of the slide plate 140 and the guide bracket 160.

By this operation, the microfilm 10
2 is pulled out from the shutter window 110A, but since the reel 104 can freely rotate in the microfilm pulling direction, the microfilm 102 can be easily pulled out in a loop shape.

The drawn microfilm 102 is
The image pickup roller 202 on the magazine loading section 200 side is wound around by the operator's work.

(Magazine Loading Unit 200) FIG. 11 shows the magazine loading unit 200.

The magazine loading section 200 is composed of a photographing section 208 provided in the upper portion of the photographing apparatus 10 so as to project in a substantially mountain shape, and a holding section 210 for holding the magazine 100, and a casing for covering the photographing section 208. Slope portion 20 of 212
0A and 0B are the mounting portions of the magazine 100. The slopes 200A and 200B have an inclination angle of 45 °,
The structure is such that the magazine 100 is loaded in a state of being tilted at 45 °.

The holding section 210 has a guide base 214 mounted along the standing wall on the back side of the photographing section 208. The guide base 214 is the base portion 1 of the magazine 100.
It is facing 08. The guide base 214 has a rotation transmission plate 1 connected to the reels 104 in the magazine 100.
A drive plate 216 corresponding to 22 is provided.

The drive plate 216 is circular and has a pair of protrusions 216A formed on the periphery thereof. This protrusion 21
6A has a role of entering the notch 122A of the rotation transmission plate 122 and connecting the drive plate 216 and the rotation transmission plate 122.

As shown in FIG. 12, the drive plate 216 has its rotary shaft 216B penetrating to the back side of the guide base 214, and one rotary shaft 216B (the rotary shaft corresponding to the reel 104 on the winding side). A gear 218 is attached to the.

Corresponding to the gear 218, a roller 222 around which a timing belt 220 driven by the driving force of the driving means is wound is provided. This roller 222
Is formed with a flange 222A, and a tooth portion 222B meshing with the gear 218 is formed on the outer periphery of one of the flanges. Therefore, the drive force of the timing belt 220 can rotate the drive plate 216 corresponding to the reel 104 on the winding side via the gear 218 (drive side).

Further, on the other rotary shaft 216B (the rotary shaft corresponding to the reel 104 on the supply side), the rotary slit plate 22 forming a part of the rotary encoder at its protruding tip.
4 is attached. The rotary slit plate 224 is provided with a plurality of slit holes evenly along the peripheral edge.

Corresponding to the rotary slit plate 224, a sensor 226 which constitutes a rotary encoder together with the rotary slit plate 224 is provided on a part of the outer circumference. The sensor 226 is a photoelectric sensor having a light-transmitting side and a light-receiving side which are bifurcated, and a part of the rotary slit plate 224 (a portion provided with a slit hole) passes between the bifurcated portions. ing. Accordingly, the sensor 226 can recognize the rotation speed of the rotary slit plate 224 from the detection signal (pulse count) of the sensor 226.

As shown in FIGS. 11 and 13, a microfilm take-out mechanism section 228 is arranged on the back surface side of the guide base 214 and between the rotary shafts 216B.

This microfilm take-out mechanism section 228
Has a bracket 230 attached as its base. The bracket 230 is a leg portion 230A in which upper and lower ends in the vertical direction with respect to the slope portions 200A and 200B are bent at a right angle in parallel with each other, and a circular hole 230B is coaxially provided. The shaft 232 is inserted through the circular hole 230B.

A long hole 234 is formed on the mounting surface of the bracket 230 to the guide base 214. Shaft 2
A pin 206 accommodated in the circular hole 156A of the slide operation portion 156 is attached to the axial center of 32 and penetrates the elongated hole 234.

A snap ring 238 is attached near the pin 206.
A compression coil spring 240 is attached between the shaft 38 and the leg portion 230A. Due to the biasing force of the compression coil spring 240, the pin 206 moves the upper end of the elongated hole 234 (the inclined surface portion 2).
00A, B has been moved to a position in contact with the upper side along the vertical direction). The position of the pin 206 in this state becomes the position of the slide operating portion 156 when the shutter window 110A of the magazine 100 is closed, and the pin can be inserted into the circular hole 156A provided in the slide operating portion 156.

A knob 242 is attached to one end of the shaft 232, and the slide operating portion 156 is opened in the opening direction of the shutter window 110A by gripping the knob 242 and pushing it down against the urging force of the compression coil spring 240. Can be moved to.

A lock pin 244 is attached to the outside of the leg portion 230A of the shaft 232. The lock pin 244 corresponds to a lock member 248 rotatably attached to the bracket 230 via a shaft 246. A torsion coil spring 250 is attached to the shaft 246, one end of which is locked to a part of the lock member 248 and the other end of which is locked to the bracket 230. The lock member 248 is formed with an inclined surface portion 248A, which is normally arranged on the movement locus of the lock pin 244 (when the shaft 232 moves in the axial direction) by the biasing force of the compression coil spring 240.

Here, when the lock pin 244 comes into contact with the slope 248A as the shaft 232 is pushed down,
The lock pin 244 causes the lock member 248 to rotate against the urging force of the torsion coil spring 250, and the slope 248.
It returns when it passes A. By this return, the return of the lock pin 244 (movement of the shaft 232 due to the biasing force of the compression coil spring 240) is blocked, and the shutter window 110A can be held in the open state by the slide operation portion 156.

As shown in FIG. 11, the photographing units 208 each have a triangular box shape and are individually provided for the two magazines 100 to be loaded. The configuration of one image capturing unit 208 is shown below.

The photographing section 208 is provided with a lid and is normally shielded from light. Since the microfilm 102 applied to this embodiment has a lower sensitivity than a silver salt film used for shooting with a general camera,
There is no problem with some leakage light. For this reason,
Preparation for winding the microfilm 102 around the photographing roller 202 can be performed with the lid 252 open.

When the magazine 100 is loaded on the slopes 200A and 200B and the shaft 232 is pushed down, the microfilm 102 is pulled out into a loop in the photographing section 208.
The reference numeral 2 passes through the inside of a pair of synthetic resin guide rollers 254 and 256 and is wound around the photographing roller 202.

Here, a flange portion 254A is formed on the guide roller 254 on the entrance side, which guides the width direction of the microfilm 102, and the photographing roller 20 in an appropriate state.
It is designed to be wrapped around 2.

The photographing roller 202 has a peripheral surface made of rubber and is rotated at a predetermined rotation speed by the driving force of the driving means. Here, the reel 104 on the take-up side includes the photographing roller 202.
Since the microfilm 102 is rotated a little faster than the rotation of No. 1 and is rotated with a low torque, the microfilm 102 is conveyed without sagging and the relative position between the photographing roller 202 and the microfilm 102 is not displaced.

The light guided to the optical system 400 is irradiated onto the microfilm 102 wound around the photographing roller 202. The light exposes the microfilm 102.

The light guided by the optical system 400 is the reflected light of the image of the original 16 wound around the drum 300, and the rotation of the drum 300 and the rotation of the photographing roller 202 are synchronized with the reduction ratio. , Slit exposure will be performed.

(Drum 300) As shown in FIG.
The drum 300 is provided with a plurality of circular holes 302 that connect the outer circumference and the inner space. A chamber 308 is arranged inside the drum 300. The chamber 308 includes a small-diameter cylinder 309 having one end closed, five partition plates 311A to 311E radially extending along the longitudinal direction of the small-diameter cylinder 309, and partition plates 311A to 311.
Two partition plates 313 fixed to the axial end faces of 1E
A, 313B, and rooms 308A-308
Forming D. A part of the partition plate 313A located on the closed end side of the small diameter cylinder 309 is cut out in a fan shape,
This cutout portion faces the room 308B serving as a suction portion.
Further, in the small diameter cylinder 309, a plurality of small holes are opened toward the chamber 308D which serves as a peeling portion.

The end surface of the drum 300 is open, and the fan 306 is arranged correspondingly. When the fan 306 is driven, the air in the suction section (room 308B) in the inner space of the drum 300 is sucked out, so that the room 30
The inside of 8B is made negative pressure negative pressure. Therefore, this room 308
Air is sucked from the circular hole 302 of the drum 300 corresponding to B, and the document 16 fed from the tangential direction of the drum 300 is sucked by the drum 300.

On the other hand, the fan 309 is provided in the small-diameter cylinder 309.
Air is supplied to the room 308D. As a result, the air is sent into the room 308D, and the air is blown out from the circular hole 302 of the drum 300 in the region corresponding to the room 308D.

Therefore, the original 16 is easily separated from the drum 300 by the blown air. The chambers 308A and 308C are located on the entrance side of the document 16 and at the boundary between suction and separation.

As a result, the original 16 can be surely adsorbed over approximately half the circumference of the drum 300 and can be reliably peeled off.

A thin plate-shaped porous filter 310 is wound around the peripheral surface of the drum 300. The porous filter 310 has a function of spreading the suction area over the entire area of the drum 300 so that the suction area is biased near the circular hole 302 and no suction mark remains when the original 16 is sucked.

Since the porous filter 310 is removed only by winding it around the drum 300, the porous filter 31
0 is covered with a thin woven fabric cover 312 which has elasticity and is seamless and easy to exchange. As such a fabric cover 312, a stretchable mesh such as a nylon mesh is preferable.

The woven cloth cover 312 prevents the porous filter 310 from falling off, and the woven cloth cover 312 itself has a filter effect, so that the suction effect of paper dust can be improved.

The central portion (27 ° with respect to the horizontal direction) of the area from the time when the original 16 is sucked up to the time when the original 16 is peeled off, the optical system 400
Is set to the exposure position for guiding the image of the original 16 toward the photographing roller 202 (see FIG. 3), and the glass plate 314 is used.
Is provided. The glass plate 314 has a role of reliably bringing the original 16 into close contact with the drum 300 at the exposure position, and particularly prevents the rear end of the original 16 from jumping up.

Further, the upstream side of the exposure position of the drum 300, that is, the upper part, is covered with a low-friction sheet 316. The sheet 316 narrows the suction area from the circular hole 302, and improves the suction effect of the small-sized document 16. The necessity of low friction is to prevent static electricity from being generated because the drum 300 slides as the drum 300 rotates. For this reason, it is preferable to have conductivity, and specifically applicable are metal foil such as aluminum foil and phosphor bronze foil (preferably having a thickness of about 0.02 mm). Further, even the surface-treated special paper can have an effect of increasing the suction force (for example, Toray's Soldion tape "trade name").

The tip of the sheet 316 is pressed by the glass plate 314 to prevent it from fluttering.

(Original Image Photographing Optical System 400) FIG. 3 shows an optical system 400 for guiding the light radiated to the image of the document 16 wound on the drum 300 to the microfilm 102 wound on the photographing roller. It is shown. A bracket 402 extends from the lamp stay 60 that holds the lamp 58 toward the optical path. A mask 404 is attached to the bracket 402.

The mask 404 is provided with a slit hole 404 having a width of about 14 mm and corresponding to the axial length of the drum 300. The light is transmitted through the slit hole 40 of the mask 404.
It is designed to pass 4A.

The drum 300 corresponding to this mask 404
The upper exposure position is located at an elevation angle of 27 ° with respect to the lateral side, and its optical axis is perpendicular to the tangent line of the exposure position of the drum 300.

The light passing through the mask 404 is reflected by the reflecting mirrors 406 and 40 attached to the bracket 406, respectively.
It is reflected by 8 and guided toward the photographing roller 202 located on the upper surface of the photographing device 10. A lens 412A held by a cylindrical body 412 is provided on the upstream side of the photographing roller 202, collects light guided by the reflection mirrors 406 and 408, and is wound around the photographing roller 202.
It is designed to form an image on the top. Also, this lens 41
A shutter 414 is provided on the upstream side of 2A, and is opened after a lapse of a predetermined time after the leading edge of the original 16 is detected by the original detection sensor 46 after the start of photographing, and a predetermined time has passed after the rear edge of the original 16 is detected. It will be closed later.

The photographing rollers 202 have a pitch dimension of 34 mm between their respective axial centers, and the optical axis having the elevation angle of 27 ° reaches the center of the pair of photographing rollers 202. The slit width of the light passing through the slit hole 404A is set so that the two photographing rollers 202 are simultaneously irradiated.

Therefore, the same image can be photographed on the microfilm 102 wound around the photographing roller 202 almost at the same time.

(Blip mark / number photographing optical system 500) As shown in FIG. 15, the blip mark / number photographing optical system 500 (hereinafter referred to as the sub optical system 500) is arranged side by side with the image photographing optical system 400. Is provided. This sub-optical system 500 is, as shown in FIG.
Image frame 102A photographed on the microfilm 102
The blip mark 102B that determines the position of this image frame corresponding to the above, and a specific number (film number and frame number) 102C that specifies this image frame 102A are printed on the microfilm 102.

As shown in FIG. 15, this sub optical system 50
A halogen lamp 502 is disposed in the light source unit of 0, and the light emitted from the halogen lamp 502 passes through the condenser lens 504 and the diffusion plate 506 and is passed through the liquid crystal shutter 5
It reaches to 08.

The liquid crystal shutter 50 as shown in FIG.
Reference numeral 8 is an elongated shape, and a 7-dot liquid crystal window and a rod-shaped liquid crystal window are provided in one row along the longitudinal direction.

The light passing through the liquid crystal shutter 508 passes through each lens 412A of the optical system 400 and is focused on the macro flume 102.

The operation timing of the liquid crystal shutter 508 is determined by the rotation speed of the photographing roller 202 (microfilm 1
It is synchronized with the linear velocity of 02), and the liquid crystal window is opened and closed based on the data for each line at regular intervals. As a result, the specific number 102C is printed in a dot pattern (see FIG. 17), and the blip mark 102B is printed as a rectangular mark by continuously opening for a predetermined time.

Here, depending on the size of the document 16, the photographing of the document image may be completed before the time (for 10 digits) for burning the frame number 102C by the sub optical system 500 is reached (FIG. 16). Third image frame 10 from the left
2A). In such a case, if the shutter 414 is closed due to the end of the document, the frame number may be imprinted only halfway. Therefore, in the present embodiment, when the shutter 414 is closed, if the burning of the frame number is not finished, the shutter 414 is closed after waiting for the burning of the frame number.

The operation of this embodiment will be described below. First, a description will be given of the work from the receipt of the manuscript (slip) 16 to the photographing in the financial institution.

First, the envelopes containing the originals 16 sent to the head office of the financial institution are classified by company and customer, and the envelopes are opened and the wrinkles and the like of the folded originals 16 are straightened.

Next, the number of originals is checked and the list table is filled in. Then, an attachment is prepared, and a sticker 36 with a bar code 34 showing the order number is attached.

Next, information including this bar code number (registration date, division, store number, subject, account number, depositor name, trustee code, self-assignment code, accommodation company code, contractor number)
Is entered and the entered information is stored in the host computer 40 via the storage medium 38. After completing the entry, after checking the entered list,
The manuscript 16 is categorized by branch office and the manuscript 16 is sent to each branch office.

The sent original 16 is returned to the head office after undergoing a seal stamp inquiry at each branch. Further, the regular parts returned from the branch (including those that have been corrected and re-submitted after being returned) are placed one by one on the document table 18 of the photographing apparatus 10 in the order in which they are bundled.

When placed on the document table 18, the bar code reader 32 reads the bar code 34, retrieves information from the computer 42 based on the number corresponding to the bar code 34, and displays it on the display 44. indicate.

The operator collates the displayed contents with the contents actually written on the original 16, and if they match, operates the photographing start key 26. By this operation,
The feeder unit 20 operates to load the document 16 with the document insertion port 12B.
It is conveyed in the direction and the image is taken. The shooting procedure and the like will be described later.

When photographing is completed, the microfilm 10
The shooting frame number of 2 is added to the above information and stored again in the storage medium 38 of the computer 42.

As described above, the bar code 34 attached to the actual original 16 is read, various information is retrieved from the computer 42 based on the read bar code 34 information, and the displayed information is displayed. Since the information is compared with the information of the document actually placed on the document table 18, even if the order of data entry is different from the first one or the data is missing, the document is placed on the document table 18. It is possible to take pictures in the order of placement.

That is, conventionally, information is read from the computer 42 in the order of data lintry and displayed, and this display and the information of the original 16 to be photographed are collated. Therefore, when data entry is made as described above. If the order is different from the above, collation is not established and it takes time and effort to search the manuscript. For this reason, there has been a situation in which the photographing work has to be temporarily interrupted. However, in the present embodiment, since there is no such temporary interruption of the photographing work, the photographing work can be efficiently performed.

If the number of consecutive shots is set in advance (for example, 100 times) and the missing serial number read by the bar code 34 is displayed each time the number of consecutive shots is completed, it is easy to read an unphotographed document. Can be confirmed.

Next, a procedure for loading the magazine 100 into the photographing device 10 will be described. In the image capturing apparatus 10 of this embodiment,
Two magazines 100 can be loaded at the same time,
Since the loading procedure is the same, one magazine 100
Only the loading of will be described.

In the new magazine 100, the raw microfilm 102 is wound on the supply side reel 104, and the outermost microfilm 102 is inserted into the base shaft of the winding side reel 104. The lid 112 in this state
Is placed on the upper end of the side wall 110 of the magazine body 106, and the lock operating portion 118 is rotated to engage the lock member 116 and the upper end portion 114B of the bracket 114, so that the lid body 112 can be fixed. . like this,
In the state of the magazine alone, in the supply side reel 104, the tooth portion 120A of the gear 120 is the claw portion 128B of the locking claw 128.
Since the micro film 102 can be rotated in the pull-out direction, the rotation in the winding direction is prevented. On the other hand, the reel 104 on the winding side is rotatable in the winding direction of the microfilm 102, but is prevented from rotating in the drawing direction.

In this state, the magazine 100 is placed on the slope portion 200A (200B) of the magazine loading section 200 and abutted against the holding section 210. Here, the holding portion 210 has two pins 204 and 206 protruding, and correspondingly, the circular holes 108 are formed in the magazine 100.
E and 156A are provided. If the slide operation portion 156 of the magazine 100 is in the regular position (the shutter window 110A is in the closed state), these intervals are the same. The back side (back side) of the portion 108 can be brought into close contact with the holding portion 210. As a result, the notch 122A of the rotation transmission plate 122
Engages with the projection 216A of the drive plate 216, and the drive plate 2
The rotation of 16 can be transmitted to the rotation transmission plate 122.

When the magazine 100 is placed at a predetermined position, the knob 242 attached to the tip of the shaft 232 is gripped and pushed down in the direction of the slope portion 200A (200B). In this pressing operation, the pin 206 is housed in the circular hole 156A of the slide operating portion 156, so the slide operating portion 156 is pressed down.

In this state, the push rod 1 of the pressing member 138 is
38C is pushed, and the arm 132 is moved by the slope 138A.
Push down. As a result, the locking claw 128 has the circular hole 12
8A rotates about the biasing force of the torsion coil spring 130, and the claw portion 128B separates from the tooth portion 120A of the gear 120. Therefore, the reel 104 can be rotated in either the winding direction or the drawing direction of the microfilm 102.

By pushing down the slide operating portion 156, the slide opening / closing base 152 slides,
Expand the included angle of the connecting arm 148. Due to this expansion, the slide plates 140 slide in directions away from each other, and the shutter window 110A can be opened. Further, a protrusion 140C is formed on the slide plate 140, and is fitted with the sloped portion 200A (200B) when opened, so that the magazine 100 can be securely attached to the sloped portion 200A (200B).
B) Can be fixed on.

Simultaneously with the opening operation of the slide plate 140, the guide bracket 160 moves to allow the roller 164 to project from the shutter window 110A. By the way, the microfilm 102, which is wound between the reels 104, is wound around the roller 164.
According to the opening operation of 10A, it can be sent to the imaging unit 208 of the magazine loading unit 200.

When the shaft 232 is pushed in by a predetermined amount,
The lock pin 244 interferes with the lock member 248, and the state in which the lock pin 244 is pushed in against the biasing force of the compression coil spring 240 is maintained. Therefore, the shutter window 110A is kept open, and the microfilm 102 can freely move in and out.

In this state, the operator passes the microfilm 102 between the guide rollers 254 and 256 and winds it around the photographing roller 202. With this, the preparation for photographing is completed, the photographing roller 202 is rotated, and the reel 104 is rotated.
The micro film 102 is sequentially unwound from one reel 104 to the other reel 104 by the rotation of, and is wound up. The rotation speed (linear speed) of the take-up reel 104 is slightly higher than the rotation speed (linear speed) of the photographing roller 202 and has a low torque, so that the microfilm 102 is wound without slack. Further, since the guide roller 254 on the entrance side is provided with the flange, it is guided in the width direction of the microfilm 102 and is reliably wound around the photographing roller 202 at a predetermined position.

The procedure until the conveyed original 16 is photographed on the microfilm 102 will be described below with reference to the flowcharts of FIGS. 18, 19 and 20.

First, the illuminance control routine for the lamp 58 will be described with reference to FIG. In step 600, the paper type set by the illuminance setting knob 56 is determined,
Next, the standard illuminance L _{1 of} the paper type determined in step 602
Read out.

In step 604, the actual lamp 58
Illuminance L₂Is detected by the illuminance sensor 52, and step 6
Standard illuminance L read in 06₁Lamp illumination detected as
Degree L ₂Compare with.

As a result of the comparison, when it is determined that L ₁ > L ₂ , the process proceeds to step 608, the lamp power source is increased by a predetermined amount, and the process proceeds to step 612. When it is determined that L ₁ <L ₂ , the process proceeds to step 610, the lamp power source is reduced by a predetermined amount, and the process proceeds to step 612. Further, when it is determined in step 606 that L ₁ = L ₂ , the process directly proceeds to step 612.

At step 612, it is judged whether or not the leading edge of the original 16 is detected by the original detection sensor 46.
In the case of negative determination, the process returns to step 600, and steps 600 to 612 are repeated. By this feedback control, the illuminance of the lamp 58 is controlled to the set standard illuminance (first mode).

If it is determined in step 612 that the leading edge of the original 16 has been detected, the process proceeds to step 614, the lamp voltage at this time is stored, and the process proceeds to step 616. In step 616, it is determined whether or not the length of the document 16 is equal to or longer than a predetermined length, and in step 618, the time t until the photometry of the document 16 is determined according to the success or failure.

In step 620, it is determined whether or not the determined time t has elapsed, and if an affirmative determination is made, the process moves to step 622 and the photometric sensor 48 starts photometry. Since the time t is determined according to the length of the document 16, it is possible to obtain a stable photometric value particularly when the document is long.

When photometry is performed in step 622, the process proceeds to step 624, and the lamp voltage is set based on this photometric value. Next, in step 626, the set lamp voltage value is corrected based on the document width, and in step 628.
Then, the corrected voltage is applied to the lamp 58. That is, the lamp voltage is held based on the photometric value measured in step 622, and the photographing process is performed during this period (second mode).

Next, at step 630, it is judged that the trailing edge of the document 16 is detected by the document detection sensor 46,
When it is affirmed that the predetermined time has elapsed in step 632, the process proceeds to step 634, the voltage value stored in step 614 is read, and then the voltage read in step 636 is applied to the lamp 58. Next step 6
At 38, it is determined whether or not a predetermined time has elapsed, and if an affirmative determination is made, the process returns to step 600. (Fourth mode =
First mode). As a result, the control voltage before shifting to the second mode can be quickly changed, and thus the interval for returning to the standard illuminance for the next shooting can be shortened.

Next, the detection control by the document detection sensor 58 will be described with reference to the flowchart of FIG. In this embodiment, a high-level signal is output when the original detection sensor 58 detects the original 16, and a low-level signal is output when the original 16 is not detected.

First, in step 650, the trailing edge is detected from the output signal A of the document detection sensor 46 to the photometric control device 54. Next, at step 652, a signal B that outputs a pulse wave that is output for a predetermined time after the fall is detected is generated. The output time of the signal B may be set by the operator according to the situation of the document 16.

In the case of a normal original document 16, this signal B is generated only when the trailing edge of the original document 16 is detected.
In the case of No. 6, when the document detection sensor 58 passes through this hole position, a rectangular wave having a small pulse width is first generated, so that the signal B also detects the trailing edge of this rectangular wave and detects 2 in one document. The number of pulse waves will be generated.

At step 654, the signal A
And the signal B are ORed, and the generated signal C is applied as a document detection signal (step 656).

As a result, one original 16 can be recognized as one, although the detection position is slightly shifted, and the photographing count and the like can be made reliable.
It should be noted that there is no problem if the detection position shift amount is taken into consideration in advance.

Next, the photographing procedure will be described with reference to FIG. When it is confirmed in step 700 that the shooting start key 26 is operated, the feeder unit 20 is driven in step 702, and then the rotation of the drum 300 is started in step 704.

In the next step 706, the fan 306 is driven to make the inside of the drum 300 (the space where the chamber 308 does not exist) a negative pressure, and in the next step 708, air is sent to the chamber 308.

As a result, from the document winding start position (near the upper end in FIG. 3) on the drum 300 to the peeling position (FIG. 3).
Since the air is sucked through the circular hole 302 up to the vicinity of the lower end), the conveyed document 16 can be sucked.
On the downstream side of the peeling position, conversely, the air from the chamber 308 blows out from the circular hole 302, so that the document 16 is reliably peeled from the drum 300.

Here, since the porous filter 310 is wound around the peripheral surface of the drum 300, the suction force concentrated around the circular hole 302 can be evenly spread over the entire drum 300, and the original 16 It is possible to prevent a suction mark from being left on the original 16 during the suction of. In the past, the porous filter 310 was adhered to and held by the peripheral surface of the drum 300 with an adhesive, but in the present embodiment, a nylon mesh is further provided on the upper layer of the porous filter 310. Since the tubular fabric cover 312 is covered and held, for example, when replacing the porous filter 310, the porous filter 310 can be easily removed by removing the fabric cover 312. The maintenance workability can be greatly improved. Further, the fabric cover 312 itself has a filter effect, and the suction effect of paper dust can be improved.

As described above, when the original 16 is horizontally conveyed from the tangential direction to the drum 300 covered with the porous filter 310 and the fabric cover 312, the original 16 is transferred to the drum 3.
It is adsorbed on 00 and wound. During the horizontal conveyance of the document 16, the surface of the document 16 is measured and the illuminance of the lamp 58 is adjusted, and the document 16 reaches the exposure position while being wound around the drum 300. This exposure position is a position with an elevation angle of 27 ° with respect to the side of the drum 300, and a glass plate 314 is arranged at this position.
With this glass plate 314, the original 16 is placed on the drum 300.
Slit exposure is performed in a state of being closely attached to the peripheral surface of the. In particular,
At the rear end of the document 16, the document 16 may be separated from the drum 300 due to splashing or the like to cause a change in the optical path length. However, in this embodiment, the document 16 is pressed by the glass plate 314. Therefore, it is possible to reliably prevent the original 16 from floating.

Further, there are various sizes of the document 16, and for example, in the case of a document having a short width, the document 16 cannot be blocked in the circular hole 302 in the axial direction of the drum 300, and the suction effect is obtained. It may decrease. Therefore, the low-friction sheet 316 is covered between the vicinity of the suction position of the original 16 and the exposure position to narrow the suction area from the circular hole 302 to improve the suction effect of the small-sized original 16. As a result, even the original 16 having a small width can be reliably sucked into the drum 300. Also, since this sheet 316 has low friction, the drum 3
It is possible to prevent the generation of static electricity even when it is slid along with the rotation of 00.

Further, the tip of the sheet 316 is pressed by the glass plate 314, and it is possible to prevent fluttering.

Here, in step 710, when the leading edge of the original 16 reaches the exposure position due to the rotation of the drum 300 (a predetermined time after the leading edge of the original 16 is detected by the original detection sensor 46), step 712. Then, the shutter 414 is opened and the photographing roller 202 is synchronously rotated in step 714. Therefore, the image of the original 16 stably fed to the exposure position is slit-exposed by the optical system 400.

That is, the image of the original 16 is the mask 40.
The light passes through the slit hole 404 provided in No. 4, is reflected by the reflection mirrors 406 and 408, and is imaged on the microfilm 102 wound around the photographing roller 202 by the lens 412A. Therefore, the two photographing rollers 2
Each microfilm 10 wrapped around 02
In 2, the same image can be taken almost at the same time.

When the rear edge of the original 16 is detected by the original detection sensor 46, the shutter 414 is normally closed after a predetermined time has elapsed and the photographing is completed. However, in this embodiment, at the same time as the photographing of this image. The sub-optical system 500 prints the blip mark 102B and the frame number 102C near the image frame 102A.

Blip mark 102B and frame number 10
In 2C, the shutter windows of the liquid crystal shutters 508 arranged in a row are used to rotate the photographing roller 202 (microfilm 10
The blip mark 102B becomes a continuous rectangular mark by opening and closing in accordance with (movement of 2), and the frame number can be imprinted in a dot pattern.

If the document size (especially the length direction) is small, the shutter 414 may be closed before all the frame numbers 102C are printed. Therefore, when the shutter 414 is closed, the photographing is completed (a predetermined time has elapsed after the trailing edge of the original 16 was detected) or the frame number 102C.
Whichever is later, is selected (steps 716, 718, 72).
0). In this case, the rotation of the photographing roller 202 is continued.

As a result, it is possible to reliably perform the burning without using the means for reducing the frame number 102C.

Next, at step 722, the next original 1
If 6 is on the document table 18, the shooting start key 26 may be immediately operated in step 722. Therefore, in step 724, it is determined whether the shooting start key 26 has been operated with the driving system being driven. If it is determined that the result is affirmative, the feeder unit is driven in step 726, and then the process proceeds to step 710.

If a negative decision is made in step 720, the drive system is stopped in step 728, and step 70
Move to 0.

When the document 16 reaches the peeling position of the drum 300, the document 16 is peeled from the drum 300 by the air blown from the circular hole 302, guided to the stacker 50, and discharged.

In this embodiment, as shown in FIG. 21 (A), since the pressing member 138 is provided only on the base portion 108 side, the side facing the holding portion 210 is limited to the base portion 108. As shown in FIG. 21B, the end portion of the arm operation base 136 on the lid 112 side is extended to form a slope portion 136B that is the same as the slope portion 136A, and the base portion 108 of the lid 112 is formed. By providing the circular hole 112B similar to the circular hole 108E and disposing the pressing member 139, the holding portion 2 of the magazine 100 can be mounted regardless of the front and back sides.
Can be faced to 10.

In this case, the rotation transmission plate 12 on the lid 112 side.
2 engages with the drive plate 216 to receive a driving force, and the slide operation portion 157 on the lid 112 side is slid to move the slide plate 140 and the guide bracket 160.

[0182]

As described above, the image recording apparatus according to the present invention ensures the retention of the porous filter wound around the drum circumferential surface in order to make the suction force uniform, and at the same time improves the work efficiency during replacement. It has an excellent effect that it can be improved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an image capturing apparatus according to an embodiment.

FIG. 2 is a plan view of a manuscript (deposit transfer request form).

FIG. 3 is a schematic configuration diagram of a drum and an optical system.

FIG. 4 is a block diagram of photometric control.

5A is a characteristic diagram showing photometric timing of a short original, and FIG. 5B is a characteristic diagram showing photometric timing of a long original.

FIG. 6 is a characteristic diagram of photometric values showing a difference in document width.

FIG. 7 is a perspective view of a document with holes.

FIG. 8 is a time chart for detecting a perforated document using a signal from a document detection sensor.

FIG. 9 is an exploded perspective view of a magazine.

FIG. 10 is a plan view showing the inside of the magazine.

FIG. 11 is a front view of a magazine loading unit.

FIG. 12 is a cross-sectional view of a holding unit of a magazine loading unit.

FIG. 13 is an exploded perspective view of a microfilm take-out mechanism section.

FIG. 14 is an exploded perspective view of a drum and its periphery.

FIG. 15 is a schematic configuration diagram of a sub exposure unit.

FIG. 16 is a plan view of a microfilm.

FIG. 17 is a front view showing a burning state by a liquid crystal shutter and a sub-exposure unit.

FIG. 18 is a flowchart showing a lamp illuminance control routine.

FIG. 19 is a flowchart showing a document detection control routine.

FIG. 20 is a flowchart showing a shooting control routine.

FIG. 21 (A) is a sectional view showing a structure of an arm operation base of a face-to-face magazine of the base portion and its surroundings, and FIG. Is.

[Explanation of symbols]

 10 Photographing device 16 Original 58 Lamp 102 Micro film (photosensitive material) 300 Drum 302 Circular hole (hole) 306 Fan 310 Filter (porous filter) 312 Cover (mesh cover) 400 Optical system

Claims (2)

[Claims] 1. A document is inserted in a tangential direction while rotating a cylindrical drum having a plurality of holes penetrating inside and outside on a peripheral surface thereof at a predetermined rotation speed, and the document is inserted by suction force from the holes. Is provided, and exposure means for slit-exposing the document image by sequentially guiding the document in the attracted state to the exposure position is provided, and the reflected light of the document image at the exposure position is guided to the photosensitive material through the optical system. An image recording apparatus for recording an original image on a photosensitive material by means of a porous plate which is wound around the peripheral surface of the drum and which spreads the suction force of the original document due to the circular hole over the entire circumference of the drum. An image recording apparatus comprising: a quality filter; and a mesh cover, which is braided into a tubular shape and retains a state in which the porous filter is wound around a peripheral surface of a drum by elastic force. 2. The image recording apparatus according to claim 1, wherein the mesh cover has a nylon mesh structure and is seamless.