JP3214879B2 - Book manuscript reading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book document reading apparatus having a document reading and scanning function, which is used as a document reading apparatus such as a copying machine and a facsimile.

[0002]

2. Description of the Related Art As a document reading device in a copying machine, a facsimile, or the like, a sheet document is automatically conveyed to a document reading position to read document information, and a read document is automatically discharged from the document reading position. An automatic document feeder (ADF) is known.

As described above, when an original is a sheet original, the ADF is mounted to automatically read the original information. However, when the original is a book original, automatic page turning is performed. At present, it is only possible to manually turn pages of a book document at this stage because it is practically difficult to realize the mechanism. On the other hand,
Various proposals have been made for a method and means for automating the reading of a book document which is troublesome. However, these conventional techniques are often proposed only with ideas, and have not yet reached a level that can be realized. In view of these circumstances, the present application discloses, as disclosed in Japanese Patent Application No. 2-193589, a part of a page press belt stretched along a document placing surface of a document placing table. Reading means and the like are arranged on the original surface of the book original placed and opened between the original placing surface and the page press belt while forming a detour portion separated from the original placing surface. The present invention has proposed a book document page turning reading apparatus for performing the page turning of the book document and the document reading scanning by relatively moving the page turning reading unit.

[0006] According to the book document page turning reading apparatus according to this proposal, as described in the above specification and the like, a book document page turning operation and document reading scanning that required a great deal of labor for copying and the like are performed. It is possible to realize a multi-function document reading system that can be completely automated and significantly improves productivity such as copying.

[0005]

By the way, in the book turning apparatus of the book original proposed by the present applicant, the page turning reading unit presses the original surface by the tension of the page holding belt. I have. Accordingly, the reading unit of this apparatus has a high degree of close contact between the reading surface of the reading means and the document surface, thereby improving the reliability of reading accuracy when scanning the document. However, in this apparatus, when scanning the original, the original reading surface of the reading means is constantly moved relative to the original surface of the book original, so that the original reading surface is easily stained. There is a problem that a reading error or stain on the document surface occurs. SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a reading accuracy that can prevent a reading error of a document image or a contamination of a document surface due to a stain on a document reading surface of the reading unit. An object of the present invention is to provide an apparatus for reading an expensive book document.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a reading means for reading an original surface of a book original placed and opened on an original placing surface of an original placing table. In the book document reading apparatus for reading the book document by relatively closely moving the reading means, the reading means of the reading means is located at a portion of the document mounting table outside the document mounting area where the reading means passes or stops. A cleaning member for cleaning the document reading surface is provided.

According to the present invention, in order to solve the above-mentioned problem, the cleaning member is constituted by a cleaning roller which is driven to rotate every predetermined number of scans of the reading means.

[0008]

According to the first aspect of the present invention, a cleaning member for cleaning the document reading surface of the reading means is provided at a portion of the document mounting table where the reading means passes or stops outside the document mounting area. Is arranged,
The original reading surface of the reading unit is rubbed by the cleaning member by the original reading scanning of the reading unit.

According to the second aspect of the present invention, since the cleaning member is constituted by a cleaning roller which is driven to rotate every predetermined number of scans of the reading means, the reading means reads the original. By scanning, the document reading surface of the reading unit is forcibly rubbed at a predetermined cycle by the cleaning member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

However, the construction and operation of a range that can be clearly recalled from the description of the present specification, and the above and other objects and novel features of the present invention are illustrated and illustrated in order to avoid complication of description. Disclosure is omitted or simplified.

The present invention can be embodied alone in a reading device having only a document reading function of a book document, but here, for convenience of explanation, both the page turning function and the document reading function are used. A page turning reading device incorporated in one unit was taken as an example.

That is, the embodiment shown below has a function similar to that of the book page reading apparatus proposed by the present applicant in principle. It is configured.

That is, an apparatus for turning over pages of a book document embodying the present invention, "multi-function.
As shown in FIG. 1, a document scanner (hereinafter referred to as “MFDS”)
Table 100 on which document is to be placed, and original table 100
A page press belt 200 stretched along the original placing surface 100a, and a belt bypass portion that forms a detour portion 200a on the page press belt 200 by separating a part of the page press belt 200 from the original placing surface 100a. Forming means 30
0, the reading unit 400 and the detour unit 2 which are arranged on the side of the detour unit 200a in the direction of reading the original (the direction of the arrow a) with the reading unit 400a facing the original placement surface 100a.
The page storage means 500 is opened in the page turning direction (the direction of the arrow b) opposite to the original reading scanning direction of 00a, the page storing means 500 arranged in parallel with the reading means 400 along the original reading scanning direction, and the page presser. A page suction means 600 for charging the belt 200 with an uneven electric field to suck the pages of the book document O onto the page pressing belt 200, and a page pressing belt 2 at a portion opposed to the page storage opening 500a of the page storage means 500.
The page turning means 700 is integrated with a page separating means 700 for separating the document pages adsorbed on the page press belt by the curvature of 00 and is supported so as to be able to reciprocate along the document placing surface 100a. I have.

As shown in FIG. 2, the main structure of the MFDS has a front open shell type opening / closing structure in which the rear portions of the upper unit 2 and the lower unit 3 are fixed by hinges 4. The upper surface of the lower unit 3 is the document placement surface 10
0a.

The book document O is set by fitting the binding portion into a center groove 100b formed in the center of the document placement surface 100a and opening the book document O with the upper unit 2 opened. Therefore, in the MFDS, it is not necessary to set the book original face down with the facing pages facing down as in a conventional copier, and the book original can be set very efficiently and easily.

On the other hand, the page holding belt 200 and the page turning reading unit 1 are disposed in the upper unit 2 and make the magnet 3a of the lower unit 3 attract the magnetic plate 2a of the upper unit 2 so that the upper unit 2 2 are closed to the original surfaces of the book originals O, respectively. The page turning reading unit 1 is reciprocated while the upper unit 2 is closed as described above, and moves forward as shown by reference numerals 1A, 1B, 1C, and 1D in FIG. When moving in the direction,
The document surface of the book document O is scanned by the reading means 400, and when the document is moved in the backward direction as indicated by reference numerals 1E, 1F, 1G and 1H in FIG. , Page separation means 700,
Then, the pages of the book document O are turned by the page storage unit 500.

The drive mechanism and drive control means of the page turning reading unit 1 have been described in detail in the above-mentioned prior application, so that the description thereof is omitted here.

Hereinafter, a description will be given of a configuration, operation, and the like which are different from the MFDS of the prior application and which are unique to the present embodiment.

As shown in FIG. 5, various rollers 6, 7, 8, 9, 10, 11 and 12 are rotatably mounted on the page turning reading unit 1 between a pair of front and rear unit side plates 5, respectively. Supported. Here, the belt supporting rollers 6, 7, and 8 separate a part of the page pressing belt 200 from the document placing surface 100a, and
It functions as a belt bypass part forming means 300 that forms the bypass part 200a at 00. In addition, the turning roller 9 and the separation roller 10 are connected to the page holding belt 200 at a position facing the page storage opening 500a of the page storage unit 500.
Function as page separating means 700 for separating the document pages adsorbed on the page pressing belt by the curvature according to the curvature. Further, the charging roller 11 and the counter electrode roller 12 function as a page suction unit 600 that charges the page pressing belt 200 with an uneven electric field and suctions the pages of the book document O to the page pressing belt 200.

The detour section 2 of the page holding belt 200
00a, the reading unit 40 with respect to the original placing surface 100a.
0a facing each other, and a reading unit 400 disposed on the side of the detour unit 200a in the document reading scanning direction (the direction of the arrow a).
The reading sensor 13 and the reading sensor control board 14 are opened, and the page storage opening 500a is opened in the page turning direction (the direction of arrow b) opposite to the document reading scanning direction of the detour portion 200a, and the document reading scanning is performed with respect to the reading unit 400. A page storage member 15 and a page turning guide 16 as page storage means 500 are arranged in parallel along the direction.

Further, ride-up guides 17 and 18 supported between the unit side plates 5 are arranged at the end in the scanning direction and the end in the scanning direction of the page turning reading unit 1, respectively. I have. The running guides 17 and 18 are located on the opposite side of the book original O with the page holding belt 200 interposed therebetween, do not directly contact the book original O, and are usually
3 when the page turning reading unit 1 is moved in the reading scanning direction as indicated by an arrow a in FIG. 3 and when the page turning reading unit 1 is moved in the page turning direction as indicated by an arrow b in FIG. Page turning reading unit 1 with respect to the original surface of book original O
Has the function of smoothing the elevating operation.

The lifting / lowering of the page-turning reading unit 1 at this time is performed by a lifting / lowering mechanism 800 having a tilt preventing function. This elevating mechanism 800 is configured by a link mechanism as shown in FIGS. That is, in FIGS. 6 to 8, one ends of the first link 21 and the second link 22 are rotatably supported at the ends of the studs 19, 20 for fixing the riding guides 17, 18 to the unit side plate 5, respectively. Have been. The other ends of the first and second links 21 and 22 are rotatable by stepped screws 23 and 24 at the respective ends of the third link 25 and the fourth link 26 and both ends of the side link 27. It is pivoted. The other ends of the third link 25 and the fourth link 26 are connected to studs 28 and 29, respectively.
Accordingly, the unit driving side plates 30 are rotatably supported on the respective units. Further, a guide pin 31 is fixed outside the unit side plate 5.
Are vertically movably fitted in a long groove 32a of the unit elevating guide 32 provided inside the unit driving side plate 30.

According to the elevating mechanism 800, when the page turning reading unit 1 reciprocates, the respective lifting guides 17, 18 receive forces from the respective traveling directions due to the thickness of the book document O, thereby causing the lifting. By the upward component force acting on the guides 17 and 18, the page turning reading unit 1 is raised without tilting (FIG. 8). Further, according to the elevating mechanism 800, the guide pins 31 fixed to the outside of the unit side plate 5 are moved up and down along the long grooves 32a of the unit elevating guide 32 disposed inside the unit drive side plate 30. It is possible to prevent skew of the page turning reading unit 1 when the page turning reading unit 1 moves up and down, and the document scanning speed of the reading sensor 13 does not change due to the vertical movement of the page turning reading unit 1. Stable image scanning is realized.

The lifting mechanism of the page turning reading unit 1 may be configured as shown in FIGS. 9 and 10.

9 and 10, a unit upper and lower rod 34 is fixed to two upper and lower rod fixing plates 33 formed on the unit driving side plate 30. Two unit upper and lower guide plates 35 formed on the unit side plate 5 are slidably fitted to the unit upper and lower rods 34. According to the lifting mechanism configured as described above, the page turning reading unit 1 is moved up and down by sliding the two upper and lower unit upper and lower guide plates 35 along the unit upper and lower rods 34. Even if a rotational moment acts upon the lifting and lowering of the unit 1, the page turning reading unit 1 is smoothly raised and lowered and the configuration is simplified.

On the other hand, the page turning reading unit 1
Is reciprocally driven in the reading scanning direction and the page turning direction by reciprocatingly driving the unit driving side plate 30 described above. As shown in FIGS. 11 to 13, the unit driving plate 30 has three guide members 36 formed on the outside thereof fitted into guide rods 37, thereby allowing the unit driving plate 30 to move in the left-right direction in FIGS. 12 and 13. , Are slidably supported. The guide rod 37 is attached to the original placing surface 10.
In parallel to 0a, two of the upper unit 2 are laid horizontally on the front and rear side plates, and both ends are fixed. The unit driving plate 36 is integrated with a timing belt 39 stretched between the guide rods 37 by a fixing plate 38 formed outside the unit driving plate 36. As shown in FIGS. 12 and 13, the timing belt 39 is rotatably stretched by a driving pulley 40 and a driven pulley 41 pivotally supported on front and rear side plates of the upper unit 2. Each drive pulley 40 is driven to rotate via a driven drive shaft 43 to be reciprocated. As described above, the timing belt 39 is reciprocally driven to rotate at a predetermined timing, so that the page-turning reading unit 1
As shown in FIG.
Is reciprocated along the original surface.

By the way, the page rake angle θ of the page turning guide 16 in the page storage opening 500a of the page storage means 500 is determined by the entry of the book original O separated from the page holding belt 200 by the page separation means 700 into the page storage opening 500a. It is necessary to make the angle smaller than the angle α to eliminate the separation error of the document. That is, as shown in FIG. 14, when the page turning roller 9 and the separation roller 10 are arranged at the same height, the page of the page turning guide 16 in the page storing opening 500a of the page storing means 500 is used. The rake angle θ1 is configured to be smaller than the entry angle α of the book document O separated from the page holding belt 200 by the page separating unit 700 into the page storage opening 500a. In this case, the page rake angle θ1 of the page turning guide 16 is preferably not more than 60 degrees, and preferably not more than 10 degrees. Page rake angle θ1 of this page turning guide 16
Is different depending on the margin of turning of the page of the book document O with respect to the material of the page. When the document page is soft, the approach angle α into the page storage opening 500a becomes relatively large, so that the book document O can be separated even at an angle of about 60 degrees. When the original page is hard, the entry angle α into the page storage opening 500a becomes relatively small. Therefore, it is better to be as small as 10 degrees or less.

However, as shown in FIG. 14, when the turning roller 9 and the separation roller 10 are arranged at the same height, the page turning guide 1
In order to reduce the page rake angle θ1 of No. 6, it is necessary to bring the lower end of the page turning guide 16 close to the document placing surface 11a. When the reading unit 1 moves in the page turning direction, if the end of the book document O rises for some reason, the lower end of the page turning guide 16 may contact the end of the book document O. Therefore, in the page turning reading unit 1 of this embodiment, as shown in FIGS.
Page holding belt 2
The position of the book document O separated from 00 is increased,
By increasing the substantial entry angle α1 of the document page into the page storage opening 500a, the page turning guide 1 is increased.
6 can be sufficiently separated from the original placing surface 11a, and the page rake angle θ2 of the page turning guide 16 can be set.
It is configured to be sufficiently small.

As a result, the uppermost page of the book document O which is attracted to the page pressing belt 200 and separated by the curvature by the separation roller 10 is, as shown in FIG.
Page turning guide 16 through page storage opening 500a
Is stored in the page storage member 15 while being wound in a cylindrical shape along the inner peripheral surface of the page storage member 15.

Here, the entry direction of the top page separated by the separation roller 10 into the page storage port 500a is as follows.
As described above, since the approach angle α1 to the page storage opening 500a differs depending on the paper quality of the document page to be separated, it does not necessarily follow the direction along the page turning guide 16. Therefore, in the page turning reading unit 1 of this embodiment, as shown in FIG.
A page guide 15a is formed at an outer peripheral portion facing the page turning guide 16, and the entry direction of the top page separated by the separation roller 10 into the page storage opening 500a regardless of the paper quality of the document page to be separated. Is forcibly deflected in the direction along the page turning guide 16.

In the page turning reading unit 1 of this embodiment, as shown in FIG.
By placing the opposing plate 44 in close contact with the back side of the page pressing belt 200 between the paper holding belt 200 and the separation roller 10, the original page attracting force of the uneven electric field pattern formed on the page pressing belt 200 is increased. Experiments have confirmed that the reliability of turning is improved. Here, in the present embodiment, the facing plate 44 is formed of a metal plate material.
The opposing plate 44 does not necessarily need to be formed of a conductive member such as a metal, and the same effect is obtained with an insulating member.

As shown in FIG. 16, the page separating means 700 has a diameter R2 which is sufficiently larger than the radius R1 of the turning roller 9 (in this embodiment, instead of the turning roller 9 as described above). With the structure in which the turning support plate 45 having a curved surface (R2 = 75 mm) is provided, the reliability of turning the page is further improved. Here, the surface curvature ρ of the turning support plate 45 is ρ = 1 / R2 =
1/20 or less, that is, the turning support plate 45 has a diameter R2 of 20 mm or more, preferably 60 mm or more. Such a page separating unit 700 can cope with setting the radius R1 of the turning roller 9 to 20 mm or more. However, if the radius R1 of the turning roller 9 is increased, the size of the page turning reading unit 1 is increased. Failure will occur.

As shown in FIG. 17, the turning support plate 45 has a surface nearer to the separation roller 10, that is, in a direction in which the page enters the page storage opening 500 a of the page storage means 500. By configuring the curvature to gradually increase, the force of the page pressing belt 200 to bend the document page against the stiffness of the document page gradually increases with respect to the document page. Since the size of the document becomes larger, the followability of the document page to the page holding belt 200 is increased, and the reliability of page turning can be further improved. The turning support plate 45 of the present embodiment shown in FIG. 17 extends from the contact point G1 where the page press belt 200 first contacts the book original to the separation point G2 where the adsorbed and separated original page is curvature-separated from the page press belt 200. The diameters R3, R4, and R5 are configured to change in three stages of R3 = 100 mm, R4 = 70 mm, and R5 = 40, respectively. Here, the turning support plate 45 may be configured so that its surface curvature changes continuously.

In the examples shown in FIGS. 15 to 17, the page separation means 700 in which the separation roller 10 is fixed in advance so that the height of the separation roller 10 is higher than the height of the turning roller 9 is shown. However, as shown in FIGS. 18 to 21, the page separating unit 700 may be configured so that the separating roller 10 is displaced at a predetermined timing by the separating roller displacing unit 900. As shown in FIG. 19, the separation roller displacing means 900 in this embodiment includes a pair of the turning lever 46, the turning solenoid 47, and the return spring 48. As shown in FIG. 19, each of the turning levers 46 is formed in an L-shape, and each corner is rotatably supported at both ends of a support shaft of the turning roller 9. Separating rollers 10 are rotatably supported at the free ends of these turning levers 46 extending in the horizontal direction. Furthermore, at the base ends of these turning levers 46 extending in the vertical direction, each of the turning solenoids 47 and each of the turning solenoids 47 that are arranged on the bridge facing the extending direction of each free end is provided. The other end of each return spring 48 whose one end is locked to the opposite side is connected to each other. Normally (when the turning solenoid 47 is not operated), the separating roller displacing means 900 moves the separating roller 10 to the position shown by the broken line in FIG.
0 is positioned at the same height, and the turning solenoid 47 is activated during the turning operation of the original page, so that the turning solenoid 47 is separated from the position shown by the solid line in FIG. The separation roller 10 is displaced so that the height of the roller 10 increases.

Here, the turning solenoid 47 is shown in FIG.
As shown in FIG. 5, the page turning reading unit 1 moves in the page turning direction, and is turned on when the end of the uppermost page of the book document O corresponds to a substantially intermediate position between the turning roller 9 and the separation roller 10. You. The operation timing of the turning solenoid 47 is determined by the size of the book document O set on the document placing surface 100a of the document placing table 100. That is, the turning solenoid 47
Is the size of the book document from when the page turning reading unit 1 starts the page turning operation until the end of the topmost page of the book document O corresponds to a substantially intermediate position between the turning roller 9 and the separation roller 10. Is determined by counting the number of pulses of the stepping motor, for example, and is turned on when the count value matches a previously input reference value of the book document size.

As a result, the separation roller 10 is displaced to the position shown by the solid line in FIG. 18, and as shown in FIG. 21, only the uppermost page of the book document O adsorbed on the page pressing belt 200 is moved to another position. After being separated from the page and separated by the curvature by the separation roller 10, as shown in FIG. 4F, the sheet is guided into the page storage member 15 along the page turning guide 16 through the page storage opening 500a. Is stored in the page storage member 15 while being wound in a cylindrical shape along the inner peripheral surface of the page storage member. In this way,
When the turning operation of the uppermost page of the book document O sucked to the page pressing belt 200 is completed, the turning solenoid 47 is released, and the elasticity of the return spring 48 causes the separation roller 10 to move as shown by a broken line in FIG. Return to position.

As described above, the document surface of the book document O from which the uppermost document page has been separated is, as shown in FIG. At a speed, the page is pressed downward by a page pressing brush 49 that rotates counterclockwise in FIG. As described above, when the page pressing brush 49 presses the document surface, the sliding contact of the reading sensor 13 with the document surface during the page turning operation is avoided,
The displacement of the next original page is prevented. In addition, the page pressing brush 49 is rotated clockwise in FIG. 22 at a peripheral speed higher than the moving speed of the page turning reading unit 1 in the page turning direction in FIG. In this way, it is possible to extend the pages ejected from the page storage unit 500 and press them onto the original surface of the book original O, so that the page turning operation can be reliably performed. Here, the same effect can be obtained by replacing the above-described page pressing brush 49 with a page pressing roller 50 as shown in FIG.

The above-described page pressing brush 49 and page pressing roller 50 do not necessarily need to be rotated.
There is also an effect simply by arranging 0 rotatably. further,
As shown in FIG. 24, the reading sensor 1 is replaced with the page pressing brush 49 and the page pressing roller 50 described above.
A flexible guide member 51 such as a mylar is attached to the end of the third member 3 such that the page-turning guide 16 is stretched aside,
As shown in FIG. 25, even when a similar flexible guide member 52 is attached to the back of the page transport surface of the page turning guide 16 by extending the reading sensor 13 to the side, the reading sensor 13 can be used in the case of a page turning operation. Collision of the reading sensor 13 with the end of the document is avoided, and the page discharged from the page storage means 500 is extended by the flexible guide member 51 (or 52). The occurrence of jam is prevented. here,
The flexible guide member 51 (or 52) is provided between the back of the page transport surface of the page turning guide 16 and the reading sensor 13.
May be attached between both unit side plates 5.

By the way, as described above, the separation roller 1
Since the traveling direction of the document pages in the page storage member 15 after being separated by 0 differs depending on the paper quality of the document pages of the book document O, the page storage member 1 is not necessarily required.
There is no guarantee that the direction will be along the inner peripheral surface of No. 5. For this reason, the page storage member 1 after being separated by the separation roller 10
When the traveling direction of the document page in 5 does not coincide with the direction along the inner peripheral surface of the page storage member 15, the turned document page jams in the page storage member 15,
At the time of discharging, the original page is broken and remains in the page storage member 15, or a problem such as wrinkling or folding occurs.

Therefore, in the present embodiment, as shown in FIG.
Page guide 53 having an outer diameter smaller than the inner diameter
Is arranged. As a result, the uppermost document page separated from the book document O has the outer peripheral surface of the page storage guide 53 and the page storage member as shown in FIG. 15 and the inner surface of the page storage member 15,
5 is bent along the inner peripheral surface of the page storage member 1.
5 is stored smoothly.

Here, the page storage guide 53 is a POM
(Polyacetal), or a Teflon-coated cylindrical member having a smooth surface, or a cylindrical member made of styrene foam, polyurethane foam, or a metallic hollow cylinder, is fixed in the page storage member 15. Or it is configured to be pivotally supported. Further, as shown in FIG. 27, the page storage guide 53 is configured such that a columnar member formed of an extremely lightweight material such as styrene foam or polyurethane foam is fixed or pivotally supported in the page storage member 15. The same effect can be obtained even if the structure is simply inserted. Further, the inner peripheral surface of the page storage member 15 is formed of a low friction member such as Teflon (fluororesin),
The top document page separated from the book document O is smoothly inserted into the page storage member 15.

On the other hand, the reading sensor 13 provided in the page turning reading unit 1 has a sensor swing mechanism,
And, by the sensor elevating mechanism, slightly swing, and
It is configured to be raised and lowered. FIGS. 28 to 3 show the configurations of the sensor swing mechanism and the sensor elevating mechanism.
It is shown in FIG. In FIG. 28, a platen glass 55 is attached to the reading surface (lower surface) of the reading sensor 13 via a glass bracket. On both sides of the reading sensor 13, sensor brackets 56 are fixed with screws 57, respectively. Further, a sensor angle 58 as shown in FIGS. 29 and 30 is attached to the outside of each sensor bracket 56.
In these sensor angles 58, an elevating pin 58a is formed above a rectangular plate-like member, and a rotation support pin 58c with a reinforcing truncated cone 58b is formed below. Blocks 58d are respectively formed.

On both sides of each of the sensor brackets 56, holes for fitting the reinforcing truncated cones 58b and the rotation support pins 58c of the respective sensor angles 58 are formed. In each of the sensor brackets 56, after the reinforcing truncated cone 58b and the rotation support pin 58c of each sensor angle 58 are inserted into the respective holes, these rotation support pins 58c
Each of the sensor angles 58 is mounted by attaching an E-ring 59 to the end of the sensor. At this time, as shown in FIGS. 31 to 33, each sensor angle 58 has a vertical groove 56 of each sensor bracket 56 formed to have a width W2 slightly larger than the width W1 of the sensor angle 58.
a.

Thus, each sensor bracket 56
The reading sensor 13 supported by these sensor brackets 56 can swing freely by a small angle (about 5 degrees in this embodiment) about the rotation support pin 58c of each sensor angle 58. Is done. Here, the reading sensor 13 is not forcibly swung, and the platen glass 55 of the reading sensor 13 contacts the book original O when the page turning reading unit 1 moves in the reading scanning direction. The book document O is swung by following along the surface shape of the document surface of the book document O.

On the other hand, the lifting pins 5 of each sensor angle 58
As shown in FIGS. 32 and 33, 8a is fitted into a long hole of the sensor elevating arm 60, respectively. Also, the guide block 58d of each sensor angle 58 is shown in FIG.
33, a guide groove 5a formed in a pair of unit side plates 5 of the page turning reading unit 1.
Are fitted to each other so as to be able to move up and down. Each of the sensor elevating arms 60 is fixed at its base end to a sensor elevating shaft 61 rotatably supported between the pair of unit side plates 5 by welding, caulking, or the like. Are configured to swing integrally by the rotation of. Further, as shown in FIGS. 28 and 34, a sensor drive groove 58e is formed in a guide block 58d of one sensor angle 58, and a sensor drive source (rotary solenoid) 62 of the sensor drive groove 58e is formed in the sensor drive groove 58e. The output shaft 62a is fitted.

The sensor drive source 62 is normally off, and is turned on when the page turning reading unit 1 starts moving in the page turning direction. When the sensor drive source 62 is turned on, the output shaft 62a is displaced upward, and the displacement of the output shaft 62a causes one of the sensor angles via the guide block 58d to which the output shaft 62a is fitted. 58 are displaced upward.
Then, by raising the one sensor angle 58,
The sensor elevating arms 60 integrated via the sensor elevating shaft 61 are simultaneously swung, and the other sensor angle 58
Is raised in conjunction with it. As a result, the reading sensor 13 supported by both sensor angles 58 is raised via the sensor bracket 56, and the reading sensor 1 when the page turning reading unit 1 is turned is turned.
The contact of the book document O of No. 3 with the document surface is avoided, and a stable page turning operation of the page turning reading unit 1 is ensured.

Next, the page storing means 5 in the present embodiment.
00 will be described. This page storage means 50
As shown in FIGS. 35 and 36, the zero-page storage member 15 is formed by cutting off a part of a cylindrical body along its normal direction, and extending along the circumferential direction of its inner peripheral surface. And a plurality of ribs 15b protruding inward. As shown in FIG. 36, at both ends of the page storage member 15, a page storage side plate 6 having a concave portion 63a at the center is formed.
3 are respectively fixed so as to close the openings on both sides of the page storage member 15.

As shown in FIGS. 35 and 36, the page turning guide 16 of the page storing means 500 is formed in a round shape along the inner peripheral surface of the page storing member 15, and the page guide surface is formed in a round shape. It has a plurality of ribs 16b protruding inward along the circumferential direction (inner side). At both ends of the page turning guide 16, as shown in FIG. 37, support arms 16a bent toward the center of the page storage member 15 are provided, respectively. , A rotation support pin 16c is implanted so as to be located at the center of the axis of the page storage member 15. As shown in FIG. 36, the rotation support pins 16c are fitted into the recesses 63a of the page storage side plates 63 fixed to both sides of the page storage member 15, respectively.
The page turning guide 16 is rotatably supported so as to rotate along the inner peripheral surface. This page storage means 5
According to 00, since the ribs 15b and 16b are formed on the inner peripheral surfaces of the page storage member 15 and the page turning guide 16, the original pages slide on the inner peripheral surfaces of the page storage member 15 and the page turning guide 16. The dynamic resistance is reduced, and the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

The page turning guide 16 of this embodiment has a triangular shape having a vertex at the center as shown in FIG. 37. 38, or a trapezoidal shape having a straight portion near the center as shown in FIG. 38, or a protruding shape having a protrusion at the center as shown in FIG. According to this page turning guide 16,
As shown in FIG. 40, the page turning reading unit 1
When the end of the top page of the book document O is turned and separated by the page turning operation of (1), the turning guide end 16d of the page turning guide 16 guides the center of the top page so as to support it. Therefore, even if the end of the top page is not adsorbed on the page holding belt 200 or turned, the end of the top page is picked up by the turning guide end 16d. 15, the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

Further, the page storing means 5 in the present embodiment.
00 page storage member 15 and page turning guide 1
6 is made of, for example, a conductive metal such as an aluminum plate or a stainless steel plate, or a conductive resin. Further, the inner surfaces of the page storage member 15 and the page turning guide 16 of the page storage means 500 are coated with a conductive resin film 64 as shown in FIG. Here, in any of the above cases, it is desirable that the conductive member constituting the page storage unit 500 in the present embodiment is installed. According to the page storing means 500, frictional charging of the original page with respect to the inner peripheral surface of the page storing member 15 and the page turning guide 16 is prevented, so that the sliding resistance during the page turning operation of the original page is reduced. The reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

On the other hand, as shown in FIG. 41, the page storage member 15 of the page storage
The end outer peripheral surface 15c of the buckle facing the page turning guide 16 functions as a page guide member for guiding the top page separated from the book document O along the inner surface of the page turning guide 16. , And extends to a position facing the inner surface of the page turning guide 16. Further, the outer peripheral surface 15c of the end of the jaw facing the page turning guide 16 of the page storage member 15 is, for example,
It is formed of a low-friction member that has been subjected to processing such as Teflon coating, and is configured to reduce sliding resistance when the uppermost page separated from the book document O enters.

The page storage means 500 shown in FIG. 42 is an embodiment using a spiral page storage member 65 having a spiral cross section as the page storage member.
According to this embodiment, the leading end of the top page separated from the book document O and entered into the spiral page storage member 65 does not hit the newly entered portion of the top page. Therefore, the operation of storing the uppermost page in the page storing means 500 is performed smoothly.
Further, the length of the inner peripheral surface from the end of the page turning guide of the page turning guide 16 to the inner end of the spiral page storing member 65 is smaller than that of the page storing means 500 in this embodiment. It is formed to be longer than the horizontal length of the page of the maximum size book document to be stored.
As a result, the top end of the top page separated from the book document O and entered into the spiral page storage member 65 does not overlap other portions of the top page, so that the top page is The storing operation in the page storing means 500 is performed more smoothly.

By the way, the page storing means 50 of the present embodiment.
The reference numeral 0 denotes a page turning guide when the rotation support pins 16c of the page turning guide 16 are fitted into concave portions 63a of the page holding side plate 63 fixed to both sides of the page holding member 15, respectively, as shown in FIG. 16 is configured to rotate along the inner peripheral surface of the page storage member 15. Therefore, according to this page storage means 500,
After the top page of the book document O has been stored in the page storage member 15, the page turning reading unit 1
Is further moved in the page turning direction to perform the discharging operation of the top page, the page turning guide 16 is centered on the rotation support pin 16c by the strength of the waist near the binding portion of the top page. Page storage member 1
As it is pushed up while rotating along the inner peripheral surface of 5,
As shown in 1G in FIG. 4, a discharge path for original pages during the discharge operation of the page turning reading unit 1 is secured. The return operation of the page turning guide 16 after the original page is discharged is performed by the weight of the page turning guide 16 or the tension of a spring (not shown).

Here, suppose that the page storage means 5 is used.
When the page turning guide 16 of 00 cannot be rotated as described above, as shown in FIG. 43, at the time of discharging the document page, the page to be discharged is turned by the turning guide end 16d of the page turning guide 16. Since the document is folded, the document pages cannot be smoothly discharged. In addition, bending of the discharged original page may cause damage to the book original.
Therefore, as described above, the page turning guide 16 is pushed up while rotating along the inner peripheral surface of the page accommodating member 15 around the rotation support pin 16c by the strength of the waist near the binding portion of the document page. 37 (especially, in the case of the embodiment shown in FIGS. 37 to 38, when the turning guide end 16d is formed at the center of the page turning guide 16). ,
The turning guide end 16d of this page turning guide 16
Therefore, it is desirable that the discharge operation of the original page is not hindered.

The embodiments shown in FIGS. 44 to 51 have been made in view of the above points. That is, in the embodiment shown in FIGS. 44 and 45, a roller support portion 16e is formed at a predetermined interval at the end of the page turning guide 16 on the document page storage side, and the discharge support roller is formed on the roller support portion 16e. 16f is rotatably mounted. Further, in the embodiment shown in FIG. 46, a fluororesin (Teflon; product) having a substantially circular cross section (about 4 mm in the illustrated example) is formed at the end of the page turning guide 16 on the document page storage side. ) Is arranged. In the embodiment shown in FIGS. 47 and 48, the end of the page turning guide 16 on the document page storage side has a rectangular shape at a predetermined interval (in the illustrated example, the width is about 1 mm).
A low friction member 66 made of Mylar (0 mm) is arranged so as to protrude by a small amount (about 5 mm in the illustrated example) from the end of the page turning guide 16 on the document page storage side. . In the embodiment shown in FIGS. 49 and 50, a front cover 67 having a substantially U-shaped cross section is built in the front cover 67 at the end of the page turning guide 16 on the document page storage side. The extensible spring 68 is slidably fitted together with the extensible spring 68, and the distal end cover 67 is configured to be compressed by the stiffness of the discharged document page. In the embodiment shown in FIG. 51, the end of the page turning guide 16 on the document page storage side has a circular shape having a small diameter (about 4 mm in the illustrated example) and a guide surface of the page turning guide 16. It is formed by forming a folded portion 16g that is folded toward the outside of the (inner surface). According to these embodiments, when a document page is discharged, the discharged document page does not catch on the turning guide end 1d of the page turning guide 16, so that the discharging operation of the document page can be performed more smoothly. Thus, the reliability of the page turning operation of the page turning reading unit 1 is greatly improved.

On the other hand, the embodiment shown in FIGS.
The page storage member 15 of the page storage means 500 and the page turning guide 16 are integrally formed, and the rotation support pins 16c are implanted outside the page storage side plates 63 arranged on both sides thereof, thereby forming the page. The whole storage means 500 is configured to rotate. Therefore, according to the page storing means 500, after the storing of the top page of the book document O in the page storing section (FIG. 53) is completed,
When the page turning reading unit 1 is further moved in the page turning direction (FIG. 54) and the discharging operation of the top page is executed, the strength of the waist near the binding portion of the top page causes the page storing means. Since the whole 500 is pushed up while rotating about its rotation support pin 16c (not shown), a discharge path of the original page during the discharge operation of the page turning reading unit 1 is secured as shown in FIG. Is done. This page sliding means 50
The return operation after the zero original page is discharged is performed by the weight of the page turning guide 16 or the tension of a spring (not shown).

By the way, FIG.
As shown in (1), a document in which the corners of the page are broken (ear breakage) may be mixed. Also, the book manuscript O
Ear breaks may occur due to the defective page turning operation or reading operation.

Therefore, as shown in FIG. 57 and FIG. 58, only when the original page is moved in the discharge direction,
A projection-shaped crease correcting member 69 is provided so that the crease portion of the document page is hooked. Thus, when the original page is moved in the discharge direction, the crease portion of the original page is caught by the crease correction member 69,
The folded portion of the original page is extended and discharged.

Here, the above-mentioned ear break correcting member 69 can be replaced with another member. That is, FIG.
The page storage means 500 shown in FIG. 9 is an embodiment in which the edge break correction member 69 is substituted for the rear end 15d of the page storage member 15. According to this embodiment, when the original page is moved in the discharge direction, as shown in FIG. The crease portion is extended and discharged.

The page storing means 500 shown in FIG.
This is an embodiment in which the edge turning correcting member 69 is substituted for the rear end 16h of the page turning guide 16. According to this embodiment, when the original page is moved in the discharge direction, the operation shown in FIG.
As shown in (2), when the folded portion of the original page is hooked on the rear end 16h of the page turning guide 16, the folded portion of the original page is extended and discharged.

On the other hand, the folding of the original page as shown in FIG. 56 may occur at the end of the original of the next page during the turning-over operation of the original page. To correct such a broken edge at the end of the original of the next page, as shown in FIG. 63 or FIG. 64, a member disposed on the original placement surface 100a side of the page turning reading unit 1 (this embodiment). In the example, the reading sensor 13 or the page turning guide 1
6), the end portion is extended toward the downstream side in the reading scanning direction, and a flexible ear break correcting member 69 made of a mylar, a thin metal plate or the like is provided by attaching or screwing. This makes it possible to correct the crease of the next original page during reading scanning of the book original O.

FIG. 65 shows the operation of the embodiment in which the edge break correction member 69 is disposed at the downstream end of the reading sensor 13 in the reading scanning direction. The ear break correcting member 69 in this embodiment is pressed against the document surface of the book document O at least at the time of reading and scanning movement of the book document O. As shown in FIG. 65 (a), first, the extended end of the edge break correction member 69 engages with the edge break of the book document O by the movement of the page turning reading unit 1 in the reading scanning direction. . Then, the folded portion of the book document O is moved further in the reading scanning direction by the page turning reading unit 1 as shown in FIG.
As shown in (b), it is extended by the extended end portion of the ear break correction member 69, and is corrected as shown in FIG. 65 (c). Here, by making the shape of the tip of the crease correcting member 69 protrude in an arc shape as shown in FIG. 66, particularly, the crease correction for the crease portion of the original page as shown in FIG. The abutting of the leading end of the member 69 is smoothly performed, and damage to the document page at the time of the correction of the broken edge is avoided.

By the way, as described above, the page storing means 500 is composed of the page storing member 15 and the page turning guide 16, and the page turning guide 16 is turned along the inner peripheral surface of the page storing member 15. In the case of a configuration in which the sheet is moved while moving, as shown in FIG. 67, the radius of curvature r2 of the portion of the page turning guide 16 that enters the page storage member 15 is the inner surface of the page storage member 15. Although set to be smaller than the curvature radius r1, the curvature radius r3 of the document guide portion of the page turning guide 16 is set.
Is set to be larger than the radius of curvature r1 of the inner peripheral surface of the page storage member 15. Also, this page turning guide 16
Is the center of the page storage member 15,
Due to the rotation of the page turning guide 16, the end of the document guide portion is largely swung as shown by a chain line in FIG. For this reason, such page storage means 50
In the case of 0, it is necessary to secure a space in the page turning reading unit 1 that allows rotation of the page turning guide 16, and the page turning reading unit 1 becomes large.

Therefore, the page storage means 500 described below.
Then, as shown in FIG. 68 to FIG. 80, the page storage member 15 ′ and the portion of the page turning guide 16 ′ on the original page entry side are formed in a comb shape. According to the page storing means 500 configured as described above, the page storing member 15 ′ and the page turning guide 1 are provided.
The portions on the document page entry side of 6 ', that is, the respective comb-shaped portions are in the normal state, and are shown in FIGS.
As shown in FIG. 4, FIG. 75, FIG. 78, FIG. 79, etc., by setting the position of the page turning guide 16 ′ with respect to the page storage member 15 ′ so as to intersect each other, as shown in FIG. This page turning guide 1
It is possible to arbitrarily set the rotation center position 6 ′ and the rotation radius r4 thereof, and restrict its shape (in the above-described example, the position of the portion that enters the page storage member 15 of the page turning guide 16). The radius of curvature r2 is limited.), And the shape of the page turning guide 16 'can be designed to be an optimal shape, so that the space required for rotating the page turning guide 16' can be reduced.

The specific structure of each of the embodiments shown in FIGS. 69 to 80 will be described below. First, FIG.
In the embodiment shown in FIG. 9, a substantially uniform spacing is maintained inside three stays 15 ′ b arranged substantially parallel to each other.
A plurality of stainless steel page storage rings 15'a bent in a letter shape are welded or bonded and fixed to form a page storage member 15 ', and one of the stainless steel page storage rings 15'a is disposed substantially parallel to the stay 15'b. A plurality of slightly turned stainless steel page turning guide claws 16'a are welded or bonded and fixed at substantially equal intervals inside the stay 16'b to form a page turning guide 16 '. These page storage members 15 'and the page turning guide 1
6 'may be constituted by a sheet metal member in which the end of the plate material is formed in a comb shape.

Here, as shown in FIG. 70, each of the page turning guides 16 ′ has its own page turning guide claw 16 ′.
a is each page storage ring 1 of the page storage member 15 '.
5′a are arranged so as to intersect with each other in a normal state. As shown in FIG. 70, between the document page entry end of each page storage ring 15'a of the page storage member 15 'and each page turning guide claw 16'a of the page turning guide 16'. A discharge guide roller 70 is rotatably disposed.

At the time of turning over the pages of the book original O in this embodiment, as shown in FIG. 71, the original page entry end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the turning position of the top page.

Further, at the time of discharging the pages of the book document O in this embodiment, as shown in FIG. 72, the page turning guide 16 'is moved around its support shaft 16'c and its respective page turning guide claw 16'. The document page entry end of the page storage member 15 'is connected to each page storage ring 15' of the page storage member 15 '.
The document is rotated until it is located above the original page entry end of a. By the rotation of the page turning guide 16 ′, the discharge guide rollers 70 cover the original page entry end of each page storage ring 15 ′ a of the page storage member 15 ′, and the discharge path of the discharged original page. The document page exposed and discharged inside is discharged along the outer peripheral surface thereof while rotating the discharge guide rollers 70.

In the embodiment shown in FIG. 73, similarly to the above embodiment, three stays 15'b
A plurality of stainless steel page storage rings 15'a bent in a substantially C-shape are welded or bonded and fixed at substantially equal intervals inside the page storage member 15 'to constitute a page storage member 15'. A plurality of slightly bent stainless steel page turning guide claws 16'a are welded to the inside of one stay 16'b arranged substantially parallel to 15'b while keeping a substantially equal interval. Alternatively, the page turning guide 16 'is formed by bonding and fixing. The page storage member 15 'and the page turning guide 16' may be formed of a sheet metal member having a comb-shaped end portion of a plate material.

Here, as shown in FIG. 74, each page turning guide claw 16 '
a is each page storage ring 1 of the page storage member 15 '.
5′a are arranged so as to intersect with each other in a normal state. Also, at the end of the original page of each page turning guide claw 16'a of the page turning guide 16 ',
As shown in FIG. 74, a turning guide tip roller 71 is rotatably disposed.

At the time of turning over the pages of the book original O in this embodiment, as shown in FIG. 75, the original page entry end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the turning position of the top page.

At the time of discharging the pages of the book document O in this embodiment, as shown in FIG. 76, the page turning guide 16 'is turned around its support shaft 16'c and its respective page turning guide claw 16'. The document page entry end of the page storage member 15 'is connected to each page storage ring 15'.
The document is rotated until it is located above the original page entry end of a. The rotation of the page turning guide 16 ′ prevents the turning guide tip roller 71 from protruding the original page entry end of each page storage ring 15 ′ a of the page storage member 15 ′, and discharges the discharged original page. The document page exposed and discharged in the path is discharged along the outer peripheral surface while rotating the turning guide tip roller 71.

In the embodiment shown in FIG. 77, three stays 15'b arranged substantially parallel to each other are similar to the above embodiment.
A plurality of stainless steel page storage rings 15'a bent in a substantially C-shape are welded or bonded and fixed at substantially equal intervals inside the page storage member 15 'to constitute a page storage member 15'. A plurality of slightly bent stainless steel page turning guide claws 16'a are welded to the inside of one stay 16'b arranged substantially parallel to 15'b while keeping a substantially equal interval. Alternatively, the page turning guide 16 'is formed by bonding and fixing. The page storage member 15 'and the page turning guide 16' may be formed of a sheet metal member having a comb-shaped end portion of a plate material.

Here, as shown in FIG. 78, each page turning guide claw 16 'is provided for each page turning guide claw 16'.
a is each page storage ring 1 of the page storage member 15 '.
5′a are arranged so as to intersect with each other in a normal state. Also, at the end of the original page of each page turning guide claw 16'a of the page turning guide 16 ',
As shown in FIG. 78, a storage ring tip roller 72 is rotatably disposed.

At the time of turning over the pages of the book original O in this embodiment, as shown in FIG. 79, the original page entry end of each page turning guide claw 16'a of the page turning guide 16 'is turned over from the book original. It is located near the turning position of the top page.

At the time of discharging the pages of the book original O in this embodiment, as shown in FIG. 80, the page turning guide 16 'is moved around its support shaft 16'c and its respective page storage ring 15'a. The document page entry end of each page turning guide pawl 16'a of the page storage member 15 '
Is rotated until it approaches above the original page entry end. The rotation of the page turning guide 16 ′ prevents the storage ring tip roller 72 from protruding the original page entry end of each page turning guide claw 16 ′ a of the page turning guide 16 ′, thereby preventing the ejected original page from being ejected. The document pages exposed and discharged in the discharge path are discharged along the outer peripheral surface thereof while rotating the storage ring tip roller 72.

By the way, as shown in FIG. 5, the page turning reading unit 1 of the present embodiment has
00 (reading sensor 13) and page storing means 500
(Page storage member 15 and page turning guide 16)
Are arranged in parallel with each other along the reciprocating movement direction of the page turning reading unit 1, so that the operation of the page turning reading unit 1 at the time of reciprocating movement is stabilized. In addition, the page turning reading unit 1 of the present embodiment.
Indicates that the page turning direction and the reading scanning direction are
Since the operations are performed in the opposite directions, the scanning and page turning operation of the original page of the book original O are completed while the page turning reading unit 1 makes one reciprocation, and the original processing efficiency is improved. You. further,
As shown in FIG. 5, the page turning reading unit 1 of this embodiment includes a reading unit 400 (reading sensor 1).
3) and the page storing means 500 (the page storing member 15 and the page turning guide 16) are arranged integrally with each other in the bypass part 200a of the page pressing belt 200. It is possible to efficiently perform page pressing on the document surface of the book document O.

On the other hand, inside the reading sensor 13 shown in FIG. 81, an LED array 73, a lens 74, a selfoc lens array 75, a CCD 76 and the like are arranged.
In FIG. 81, the light of the LED array 73 is
After being condensed, the light passes through a platen glass 77 formed in a round shape to illuminate a document surface (not shown). The image of the document surface illuminated as described above is formed on the CCD 76 by the SELFOC lens array 75, and is converted into an electric signal and read.

As described above, since the platen glass 77 on the reading surface of the reading sensor 13 is formed in a rounded shape, even when the book document has irregularities on the document surface, the reading sensor 13 does not The reading surface follows the irregularities on the original surface, and scanning can be performed while smoothing the irregularities on the original surface, so that a stable reading operation can be performed.

The reading sensor 13 shown in FIG.
Is configured to pivotally support a reading roller 78 rotatable in the reading scanning direction before and after the reading surface. According to the reading sensor 13, as described above, the reading roller 78, which is rotatably supported in the front and rear directions of the reading surface and is rotatable along the reading scanning direction, always flattens the document surface of the book document. Press
Even when the book document has irregularities on the original surface, the original can be scanned while the irregularities on the original surface are flattened during the scanning, and a stable reading operation can be performed.

The page-turning reading unit 1 shown in FIG.
It is configured to have a function as a charging roller (11) for forming a non-uniform electric field pattern on zero. According to the page turning reading unit 1, since the charging roller 11 can be omitted, the structure can be simplified. Here, the other belt support roller 7
It may be configured to have a function as a charging roller (11) for forming an uneven electric field pattern on the page pressing belt 200.

The page turning reading unit 1 shown in FIG. 84 functions as a charging roller (11) for forming an uneven electric field pattern on the page pressing belt 200 on the belt supporting roller 6 (or the belt supporting roller 7). 85, and furthermore, as shown in FIG. 85, the page pressing belt 200 is
And a conductive layer 200B. In FIG. 85, the surface of the page holding belt 200 on which the uneven electric field pattern is formed has a low volume efficiency of 10 ^13.
The conductive layer 200B, which is composed of the insulating layer 200A of about Ωcm to 10 ¹⁶ Ωcm and functions as the counter electrode when the uneven electric field pattern of the page pressing belt 200 is formed, has a low volume efficiency of 10 ⁶ Ωcm or less.

In this embodiment, the page holding belt 200
Mylar with aluminum deposition on the inner peripheral surface is used. According to the page turning reading unit 1, the charging roller 11 can be shared by another roller, and the counter electrode roller 12 can also be shared by another roller. Can be In this embodiment, the charging roller 11 is also used as the belt supporting roller 6 and the counter electrode roller 1 is used.
2 is also used by the separation roller 10.

As shown in FIG. 84, sensor running guides 79 made of a thin metal plate or a mylar are provided at both ends in the reading direction of the reading sensor 13 in the page turning reading unit 1 of this embodiment. Have been. The page-turning reading unit 1 of this embodiment can use the sensor running guide 79 described above even when the reading sensor 13 collides with the end of the book document when running on the book document.
Since the document end is guided to the lower side of the reading sensor 13, there is no problem that the reading sensor 13 comes into contact with the document end and is stopped, and the operation of climbing onto the book document is smoothly performed.

Further, in this embodiment, as shown in FIG. 84, a high voltage generator (power pack) 80 for applying a high voltage to the belt supporting roller 6 (charging roller) is provided.
In the page turning reading unit 1, it is provided integrally and disposed. Therefore, according to this embodiment, the high-voltage cable 81 for applying a high voltage to the belt supporting roller 6 (charging roller) can be minimized and the safety of the apparatus is improved.

In the page turning reading unit 1 of the embodiment shown in FIG. 86, the reading sensor 13 and the page accommodating means 500 are provided on the unit side plate 5 with respect to the unit side plate 5, respectively. It is configured to be installed from the outside toward the inside. A pair of guide side plates 17a are bent upwards on the front and rear sides of the ride-up guide 17, and a belt support roller 8 is rotatably supported between the guide side plates 17a. A positioning pin 17b is implanted in the guide side plate 17a. As shown in FIG. 87, the positioning pin 17b is fitted and supported in a pin groove 17c formed in the unit side plate 5 from outside to inside. When the positioning pin 17b is fitted in the pin groove 17c, the riding guide 17 is provided with a screw hole 17 formed in the unit side plate 5.
By screwing a set screw 17e to d, it is fixed to the page turning reading unit 1.

On the other hand, a pair of guide side plates 18a are formed on the front and rear sides of the ride-up guide 18 so as to be bent upward, respectively. The counter electrode roller 12 is rotatably supported. A positioning pin 18b is implanted in the guide side plate 18a. As shown in FIG. 87, the positioning pin 18b is fitted and supported in a pin groove 18c formed in the unit side plate 5 from outside to inside. The riding guide 18 is connected to the page turning reading unit 1 by screwing a set screw 18e into a screw hole 18d formed in the unit side plate 5 with the positioning pin 18b fitted in the pin groove 18c. Fixed.

As described above, in the page turning reading unit 1 of the embodiment shown in FIG.
Together with the belt support roller 8,
However, together with the turning roller 9, the separation roller 10, and the counter electrode roller 12, each of the unit side plates 5 is configured to be detachable from the outside toward the inside. Therefore, in this embodiment, as shown in FIG. 87, when assembling the page turning reading unit 1, the member A disposed on the inner peripheral surface side of the page pressing belt 200 and the outer peripheral surface side of the page pressing belt 200 Can be separated from each other, so that the members A and B can be separately assembled in advance, and then the member A can be assembled to the member B with the page holding belt 200 interposed therebetween. , Page turning reading unit 1 and page holding belt 20
0 can be assembled.

In the MFDS of this embodiment, as shown in FIG. 2, a cleaning roller 82 is provided above the original mounting surface 100a at a position (1H in FIG. 4) on the home position side of the original mounting table 100. To make a part of the surrounding surface protrude,
It is arranged rotatably. This cleaning roller 8
Reference numeral 2 denotes a reading surface of the reading sensor 13 (where the platen is the lower surface of the lath) when the page turning reading unit 1 is at its home position as shown in FIG.
It is arranged at a position where it abuts. The cleaning roller 82 is rotationally driven by a drive device (not shown) (the direction of rotation is not particularly limited), and every time the page turning reading unit 1 returns to its home position, the reading surface of the reading sensor 13 (platen (The lower surface of the lath), and the reading surface of the reading sensor 13 is rotationally cleaned.

Here, as a means for cleaning the reading surface of the reading sensor 13, a cleaning member made of felt or the like is fixedly arranged on the original placing surface 100a. The reading surface of the reading sensor 13 may be configured to be rubbed and cleaned. The position of the cleaning means is determined by the page turning reading unit 1.
It is not necessary to limit to the home position position, and any position may be used as long as the position is within the reading scanning movement range outside the mounting area of the book document of the maximum size that can be mounted.

As shown in FIG. 1, one end of the MFDS page holding belt 200 has a belt tension fixing roller 83 (home position side).
After being deflected by the belt support roller 84 (home position side) in the direction along the document placing surface 100a to form the detour portion 200a in the page turning reading unit 1, it is further fixed. It is bent upward by the belt support roller 85 (turning point side),
The other belt end is fixed to the belt tension movable roller 87 attached to the lower end of the tension spring 86, and the belt tension movable roller 87 is pulled upward by the contraction force of the tension spring 86, A predetermined tension is applied to the page pressing belt 200.

Here, as shown in FIG. 89, when a relatively thick book document O is set, when the operator closes the upper unit 2, a pressure Fa is applied to the upper unit 2 in the closing direction. Thereby, the page holding belt 20
A reaction force Fb in a direction to open the upper unit 2 acts on a contact portion between the book unit O and the book document O.

For this reason, one end of the page pressing belt 200 is fixed to the apparatus main body, and the other end is supported by an elastic tension applying means such as a spring or rubber to apply tension to the page pressing belt. In a case where the tension is applied, the amount of elongation of the tension applying means changes due to a difference in conditions such as the size and thickness of the book document, and as a result, particularly, the book original is supported by the tension applying means. There is a problem that a displacement occurs in the page holding belt of the gawa, a displacement occurs in the reading unit, and the reading position of the image is shifted. This displacement of the reading unit is particularly remarkable when the tension applying means is provided on the home position side.

Therefore, the page holding belt 20 of this embodiment is
At 0, the end on the turning point side of the page turning reading unit 1 is fixed to a belt stretching movable roller 87 that can move up and down against the contracting force of the stretching spring 86. Accordingly, as described above, even if an excessive tension is applied to the page holding belt 200 and the tension spring 86 is extended, and the contact position of the page holding belt 200 with respect to the document surface is shifted, the page is turned. Reading unit 1
, The positional deviation of the document surface on the home position side can be eliminated, and the positional accuracy of the operation control of the page turning reading unit 1 can be improved.

Note that the positional deviation of the document surface on the turning point side of the page turning reading unit 1 at this time is substantially eliminated by the reading scanning movement of the page turning reading unit 1, so that the document surface in this embodiment is Almost no displacement occurs. Also, the misalignment of the document surface on the side of the turning point of the page turning reading unit 1 at the time of setting the document acts so as to loosen the end of the page turning of the set book document O. Has the effect of preventing multiple pages from being turned.

By the way, the tension of the page pressing belt 200 (including the contracting force of the tension spring 86) gradually decreases due to the repeated opening and closing of the upper unit 2 and the repeated reciprocation of the page turning reading unit 1. Therefore, in this type of apparatus, the page holding belt 200
It is necessary to re-adjust the tension of the tire as needed. In this adjustment, it is not so difficult to replace the extension spring 86, and the cost is not a great burden. On the other hand, when only the length of the page holding belt 200 is longer than the initial length and it can be used sufficiently, replacing this page holding belt 200 is a matter of replacement. A great deal of labor is required, and the cost is large.

Therefore, in this embodiment, the belt tension fixing roller 83 to which the belt end of the page holding belt 200 on the home position side is fixed is connected to the upper unit via a one-way clutch 88 as shown in FIG. 2 According to this embodiment, as described above, if only the length of the page holding belt 200 is longer than the initial length and it can still be used sufficiently, the belt tension fixing roller may be used. This page is rotated in a predetermined direction (moving direction of the one-way clutch 88), and the page tension belt 83 is wound around the stretched and slack portion of the page pressing belt 200 by an easy operation. The tension of the presser belt 200 can be adjusted as needed. Further, according to this embodiment, even when the contraction force of the tension spring 86 is slightly reduced, the belt tension fixing roller 83 is rotated in a predetermined direction to rotate around the belt tension fixing roller 83. By retracting the page holding belt 200, the contraction force can be restored without replacing the tension spring 86.

On the other hand, as shown in FIG.
A center groove 100b for inserting the binding portion of the book document O is formed in the center of 00a. less than,
Each embodiment of the book document positioning member 89 selectively disposed in the center groove 100b according to the type of book document is shown.

First, in the embodiment shown in FIGS. 90 and 91, the lower surface of the book document positioning member 89 provided in the center groove 100b projects downward and
0b is formed in a triangular or semicircular shape that is in line contact with the bottom surface. This book original positioning member 8
In 9, the binding portion of the set book document O is tilted in accordance with the tilting operation with a large number of pages. As a result, the book document O is set in an optimum state so that the document surface becomes the smoothest. Here, the projecting portion on the lower surface of the book document positioning member 89 may be formed over the entire area in the longitudinal direction of the center groove 100b, or may be formed partially at several places in the longitudinal direction of the center groove 100b. You may.

In the embodiment shown in FIG. 92, book document positioning member 89 disposed in center groove 100b.
Is a long and flat positioning plate 90 fitted in the center groove 100b, and a document mounted between a protrusion formed on the lower surface of the positioning plate 90 and a protrusion formed on the bottom surface of the center groove 100b. The positioning plate 90 is elastically supported by the document positioning spring 91. The book original positioning member 89 follows the operation of inclining the set book original O with a large number of pages at the binding portion, but the positioning plate 90 is moved by the elasticity of the original positioning spring 91 as shown in FIG. Inclined. As a result, the book document O is set in an optimum state so that the document surface becomes the smoothest. Further, in this embodiment, the positioning plate 90 on which the book document is placed pushes up the binding portion of the set book document O by the elasticity of the document positioning spring 91. Is improved. Here, the protrusion on the lower surface of the positioning plate 90 is
The center groove 100b is partially formed at several locations in the longitudinal direction of the center groove 100b substantially at the center in the width direction of 0b.

In the embodiment shown in FIG. 94, the center groove 10
The book document positioning member 89 disposed in the area 0b is made of silicone rubber formed in a gel shape. The book document positioning member 89 is a document positioning member 8 made of silicone rubber formed in a gel shape according to the shape of the binding portion of the book document O set to be opened and set.
9 is set in an optimal state so that the original surface of the book original O becomes the smoothest. In the embodiment shown in FIG. 95, the book document positioning member 89 provided in the center groove 100b is a long positioning plate 92 having a roof-shaped upper surface fitted into the center groove 100b.
And a document positioning spring 93 mounted between the lower surface of the positioning plate 92 and the bottom surface of the center groove 100b. The positioning plate 92 is elastically supported by the document positioning spring 93. In the book document positioning member 89, the valleys of the binding portions of the set book document O are supported by the apexes on the upper surface of the positioning plate 92 and are opened, so that the document surface of the book document O becomes the smoothest. Is set to the optimal state. Further, in this embodiment, the valleys of the binding portions of the book document O set to be spread and set by the apexes (approximately the center in the width direction of the center groove 100b) on the upper surface of the positioning plate 92 on which the book document is placed. That is, since the center portion of the book document O in the spread state is supported, the center position of the document surface of the book document O is always constant, and the positional accuracy of the operation control of the page turning reading unit 1 is improved. .

The embodiment shown in FIG.
The book document positioning member disposed in the area b is composed of a binder unit 94, and is suitable for supporting a relatively thin book document and a document in which a plurality of sheets are stapled or bound with a binding string. It has a structure. In other words, the binder unit 94 is a long channel member 95 that fits in the center groove 100b.
And a binder clip 97 pivotally supported by a clip shaft 96 laid in the longitudinal direction of the channel member 95, and a channel member 9 attached to the binder clip 97.
5 and a binder spring 98 for urging the user to swing toward the document supporting portion 95a. According to this embodiment, as shown in FIG.
7 to release the document supporting portion 95a of the channel member 95, and sandwiching the sheet document 99 between the binder clip 97 and the document supporting portion 95a, for example, as shown in FIG. The sheet original 99 can be set without removing the stapler needle (or the binding string) 99a.

Here, each of the book original positioning members 89 described above is configured to be detachable from the center groove 100b at the center of the original mounting surface 100a, and the type of book original to be set is set. In addition, the most suitable positioning member can be selected and used according to the page position to be opened and the like.

In the embodiment described below, the setting position of the binding portion of the book document in the center groove 100b according to the size of the book document is set to the reference position of the document placing surface 100a (the position on the front side of the apparatus body). 5 is an example of a book document positioning unit configured to be aligned. As shown in FIGS. 99 to 101, the book document positioning means is such that the document set guide 101 is slidably fitted in a guide groove 100c formed along the longitudinal direction of the bottom of the center groove 100b. It is configured. According to the book document positioning means, as shown in FIG.
After the binding portion of the book document O is fitted into the reference position b (a position on the front side of the apparatus main body), the document set guide 101
Is moved until it hits this book document, thereby positioning the book document O. Therefore, in this embodiment, it is possible to prevent the book original from being displaced during the operation of the apparatus.

By the way, as shown in FIG. 3, the page turning reading unit 1 according to the present embodiment first moves from the home position toward the turning point, and the reading sensor 13 detects the original of the book O. The surface is read and then, as shown in FIG.
During the return movement from the turning point toward the home position, the turning operation of the read original page is performed. Further, as shown in FIG. 5, in the page turning reading unit 1 according to the present embodiment, the page storing means 500 for turning the page turns the home position of the page turning reading unit 1, that is, in the reading scanning direction. The upstream of the reading means 400 is arranged in parallel with the alligator. Therefore, in this embodiment, in order to reliably turn over the document pages of the book document O by the page press belt 200, the entire surface of the document surface of the book document O set on the document mounting table 100 is Storing means 500 for turning over at least the page while electrostatically attracted to it
However, it is necessary to set the turning point of the page turning reading unit 1 so that the downstream of the book document O in the reading scanning direction is located at a position lower than the end on the turning point side.

Therefore, in this embodiment, as shown in FIG. 102, the page turning reading unit 1 moves in the reading scanning direction, and the reading sensor 13 detects the end of the book document O on the turning point side (FIG. 102). After reaching the point P, the page turning reading unit 1 is further moved in the reading scanning direction, and the turning roller 9 passes through the point P of the book document O to a predetermined distance (the above condition). At a position which is excessively far enough to satisfy the condition (1), the movement of the page turning reading unit 1 in the reading scanning direction is stopped, and this position is used as a turning point to move the page turning reading unit 1 to its home position. It is configured to perform a turning operation of the original page after the reading by returning to the original page.

FIG. 103 is a flowchart for controlling the operation of the page turning reading unit 1 of this embodiment.
Shown in In FIG. 103, when the page turning reading unit 1 is operated and the subroutine of the drive control means (not shown) is started, first, the page reading unit 1 is moved by a predetermined amount in the reading scanning direction. Is determined. Here, the predetermined amount is
A distance obtained by subtracting a distance (50 mm in the present embodiment) for providing a margin for a document edge detection operation to be described later from the book spread size of the book document input in advance, or a document center from the home position of the page turning reading unit 1. It is the distance to the part.

Thus, when it is determined that the page reading unit 1 has moved by a predetermined amount in the reading scanning direction, it is determined whether or not the reading sensor 13 has detected the edge of the book document O. Here, as a method of detecting the edge of the book document O by the reading sensor 13, for example, a reading signal of the document surface of the book document O,
This is performed by detecting a difference from a read signal of the document placing surface.

When it is determined that the reading sensor 13 has detected the edge of the book document O, the counter counts for t seconds. This count time t
(T = 1 in this embodiment) is a time required for continuing the movement of the page turning reading unit 1 in the reading scanning direction by a distance necessary to satisfy the above-mentioned condition, and is a turning point. Is determined by the distance from the position of the reading sensor 13 to the edge of the book document O (25 mm in this embodiment) and the moving speed of the reading sensor 13 in the reading scanning direction (25 mm / sec in this embodiment).

When the count value of the counter reaches the count time t, the drive motor 42 is rotated in the reverse direction.
The return movement of the page turning reading unit 1 toward the home position is started, control by this subroutine is completed, and the process returns to the main routine.

As described above, in this embodiment, since the reading operation and the page turning operation of the page turning reading unit 1 can be controlled as a series of movements, the continuous operation can be performed, and the driving efficiency is improved.

[0113]

According to the present invention, there is provided a cleaning member for cleaning the original reading surface of the reading means, which is disposed outside the original placing area of the original placing table and at a position where the reading means passes or stops. Since the original reading surface of the reading unit is rubbed by the scanning of the original by the reading unit, the dirt on the original reading surface can be removed every time the scanning unit moves by scanning. The reading accuracy of the book document reading device can be improved by preventing the reading error of the document image and the contamination of the document surface.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a multi-function document scanner (MFDS) embodying the present invention.

FIG. 2 is a schematic perspective view of the MFDS when a document is set.

FIG. 3 is a schematic view showing an operation mode of the page turning reading unit in the MFDS at the time of reading scanning.

FIG. 4 is a schematic diagram illustrating an operation mode of a page turning reading unit in the MFDS when turning over a page.

FIG. 5 is a cross-sectional view of the page turning reading unit.

FIG. 6 is a front view of an elevating mechanism of the page turning reading unit.

FIG. 7 is a side view of an elevating mechanism of the page turning reading unit.

FIG. 8 is a front view showing an operation mode of an elevating mechanism of the page turning reading unit.

FIG. 9 is a schematic perspective view of another elevating mechanism of the page turning reading unit.

FIG. 10 is a side view of another elevating mechanism of the page turning reading unit.

FIG. 11 is a perspective view showing a part of a drive system of the page turning reading unit.

FIG. 12 is a plan view of a drive system of the page turning reading unit.

FIG. 13 is a front view of a drive system of the page turning reading unit.

FIG. 14 is a schematic view of a page turning unit of the page turning reading unit.

FIG. 15 is a schematic view of another page turning means of the page turning reading unit.

FIG. 16 is a schematic view of still another page turning means of the page turning reading unit.

FIG. 17 is a schematic view of still another page turning means of the page turning reading unit.

FIG. 18 is a schematic view of an operation mode of a page turning unit of the page turning reading unit.

FIG. 19 is a perspective view of a separation roller displacement unit of the page turning reading unit.

FIG. 20 is a schematic diagram of an operation mode of a separation roller displacement unit of the page turning reading unit.

FIG. 21 is a schematic view of another operation mode of the separation roller displacing means of the page turning reading unit.

FIG. 22 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 23 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 24 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 25 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 26 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 27 is a schematic sectional view showing an example of a configuration of a page turning reading unit in the MFDS.

FIG. 28 is a schematic side view of the swinging means and the elevating means of the reading sensor of the page turning reading unit.

FIG. 29 is a perspective view of components of the swinging means and the elevating means of the reading sensor.

FIG. 30 is a side view of components of the swinging means and the elevating means of the reading sensor.

FIG. 31 is a perspective view of one component of the swinging means and the elevating means of the reading sensor.

FIG. 32 is a partial plan view of other components of the swinging means and the elevating means of the reading sensor.

FIG. 33 is a partial perspective view of the components of the swinging means and the elevating means of the reading sensor.

FIG. 34 is another partial perspective view of the components of the swinging means and the elevating means of the reading sensor.

FIG. 35 is a partial perspective view of a page storage unit of the page turning reading unit.

FIG. 36 is a schematic side view of a page storage unit of the page turning reading unit.

FIG. 37 is a perspective view of a page turning guide of the page storage means.

FIG. 38 is a perspective view of a distal end portion of another page turning guide of the page storage means.

FIG. 39 is a plan view of the tip of another page turning guide of the page storage means.

FIG. 40 is a schematic perspective view showing a page turning operation of the page turning guide.

FIG. 41 is a schematic side view of another page storage unit of the page turning reading unit.

FIG. 42 is a schematic side view of still another page storage unit of the page turning reading unit.

FIG. 43 is a schematic side view showing an example of an operation mode of the page storage means.

FIG. 44 is a side view of the tip of another page turning guide of the page storage means.

FIG. 45 is a perspective view of the tip of the page turning guide.

FIG. 46 is a side view of a distal end portion of still another page turning guide of the page storage means.

FIG. 47 is a cross-sectional view of a distal end portion of still another page turning guide of the page storage means.

FIG. 48 is a perspective view of the tip of the page turning guide shown in FIG. 47.

FIG. 49 is a cross-sectional view of the tip of a further page turning guide of the page storage means.

50 is a cross-sectional view of the tip of the page turning guide shown in FIG. 49.

FIG. 51 is a side view of a distal end portion of still another page turning guide of the page storage means.

FIG. 52 is a schematic side view of still another page storage unit of the page turning reading unit.

FIG. 53 is a schematic side view showing an operation mode of the page storage means shown in FIG. 52;

FIG. 54 is a schematic side view showing another operation mode of the page storage means shown in FIG. 52.

FIG. 55 is a schematic side view showing still another operation mode of the page storage means shown in FIG. 52.

FIG. 56 is a perspective view of an example of a book document set on the MFDS.

FIG. 57 is a schematic side view of still another page storage unit of the page turning reading unit.

FIG. 58 is a schematic side view showing an operation mode of the page storage means shown in FIG. 57;

FIG. 59 is a schematic side view of still another page storage unit of the page turning reading unit.

FIG. 60 is a schematic side view showing an operation mode of the page storage means shown in FIG. 59;

FIG. 61 is a schematic side view of still another page storage unit of the page turning reading unit.

FIG. 62 is a schematic side view showing an operation mode of the page storage means shown in FIG. 61.

FIG. 63 is a schematic diagram showing another configuration example of the page turning reading unit.

FIG. 64 is a schematic diagram showing still another configuration example of the page turning reading unit.

FIG. 65 is a diagram illustrating an operation mode of a reading sensor of the page turning reading unit shown in FIG. 63;

FIG. 66 is a schematic plan view of a reading sensor of the page turning reading unit shown in FIG. 63;

FIG. 67 is a schematic diagram showing the operation of the page storage means shown in FIG. 35;

FIG. 68 is a schematic view showing the operation of a page storage unit having another configuration of the page turning reading unit.

FIG. 69 is a schematic perspective view of a page storage unit having another configuration of the page turning reading unit.

70 is a schematic side view of the page storage means shown in FIG. 69. FIG.

FIG. 71 is a schematic side view showing a state in which a document page enters the page storage unit shown in FIG. 69;

FIG. 72 is a schematic diagram showing the operation of the page storage means shown in FIG. 69 at the time of page ejection.

FIG. 73 is a schematic perspective view of a page storage unit having still another configuration of the page turning reading unit.

FIG. 74 is a schematic side view of the page storage means shown in FIG. 73.

FIG. 75 is a schematic side view showing a state in which a document page enters the page storage unit shown in FIG. 73;

76 is a schematic diagram showing an operation mode of the page storage means shown in FIG. 73 at the time of discharging a page.

FIG. 77 is a schematic perspective view of a page storage unit having still another configuration of the page turning reading unit.

FIG. 78 is a schematic side view of the page storage means shown in FIG. 77 described above.

FIG. 79 is a schematic side view showing a state in which a document page enters the page storage unit shown in FIG. 77;

FIG. 80 is a schematic diagram showing the operation of the page storage means shown in FIG. 77 when a page is discharged.

FIG. 81 is a schematic sectional view of another reading sensor of the page turning reading unit.

FIG. 82 is a schematic sectional view of still another reading sensor of the page turning reading unit.

FIG. 83 is a schematic sectional view showing another configuration of the page turning reading unit in the MFDS.

FIG. 84 is a schematic sectional view showing still another configuration of the page turning reading unit in the MFDS.

FIG. 85 is a partial cross-sectional view of a page pressing belt used in the page turning reading unit shown in FIG. 84 described above.

FIG. 86 is a schematic sectional view showing still another configuration of the page turning reading unit in the MFDS.

FIG. 87 is a schematic sectional view showing a configuration at the time of assembling the page turning reading unit shown in FIG. 86;

FIG. 88 is a schematic sectional view of a home position of a page turning reading unit in the MFDS.

FIG. 89 is a schematic diagram of the MFDS when a book document is set.

FIG. 90 is a schematic view showing a configuration of a book document positioning member of the MFDS.

FIG. 91 is a schematic view showing another configuration of the book document positioning member.

FIG. 92 is a schematic view showing still another configuration of the book document positioning member.

FIG. 93 is a schematic view showing an operation mode of the book document positioning member shown in FIG. 92.

FIG. 94 is a schematic view showing still another configuration of the book document positioning member.

FIG. 95 is a schematic view showing still another configuration of the book document positioning member.

FIG. 96 is a schematic view showing still another configuration of the book document positioning member.

FIG. 97 is a schematic view showing an operation mode of the book document positioning member shown in FIG. 96.

FIG. 98 is a schematic diagram showing a sheet document setting state of the book document positioning member shown in FIG. 96;

FIG. 99 is a schematic diagram showing a configuration of a document set guide for the MFDS book document.

FIG. 100 is a schematic perspective view showing the configuration of the document set guide shown in FIG. 99;

FIG. 101 is a schematic diagram showing a use state of the document set guide shown in FIG. 99;

FIG. 102 is a schematic cross-sectional view at a turning point of the page turning reading unit in the MFDS.

FIG. 103 is a flowchart showing an operation at a turning point of the page turning reading unit in the MFDS.

[Explanation of symbols]

 1 page turning reading unit 13 reading sensor 42 drive motor 82 cleaning roller 100 document placing table 100a document placing surface 200 page pressing belt 400 reading means O book document

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Takahashi 1-3-6 Nakamagome, Ota-ku, Tokyo, Ricoh Co., Ltd. (72) Inventor Masaru Shiina 1-3-6 Nakamagome, Ota-ku, Tokyo (56) References JP-A-3-19569 (JP, A) JP-A-59-36659 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 1/024-1/207

Claims (2)

(57) [Claims] The reading of the book document is performed by closely moving a reading means with respect to the document surface of the book document placed and opened on the document placing surface of the document placing table. In the book document reading apparatus, a cleaning member that cleans a document reading surface of the reading means is provided at a position where the reading means passes or stops outside the document mounting area of the document mounting table. Book document reading device. 2. The book document reading apparatus according to claim 1, wherein said cleaning member comprises a cleaning roller which is driven to rotate at predetermined scanning times of said reading means.