JP3311373B2 - Image 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 an apparatus for reading an image of a book document such as a copying machine and a facsimile.

[0002]

2. Description of the Related Art An apparatus and a method for reading a book original include the following: (1) The original surface of a book original placed and opened upward on an original support table is brought into contact with a contact glass for information, and the contact glass is sandwiched. A device for exposing and scanning an original image by scanning of a scanning optical system disposed opposite to
(2) There is known a device for reading an original image by exposing the original surface of a book original placed and spread upward on the original placing surface by a contact type reading sensor.

On the other hand, 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 the 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 turn the pages of a book original manually, because it is practically difficult to realize the mechanism.

Conventionally, in view of the current situation, various proposals have been made for methods and means for automating time-consuming reading of a book document.

An apparatus and method for automatically turning a page of a book document which is indispensable for realizing the automatic reading of the book document include (3) moving the book document which is placed downward and opened while moving the document page. A device for sucking and separating, (4) a device for sucking and separating document pages of a book document placed facing upward and opened, (5)
There is known a device for turning an original page of a book original placed and opened upward with a roller, an arm, or the like.

[0007] However, the above-mentioned prior art has many proposals only with ideas, has not yet reached a level that can be realized, and has the following problems.

That is, (1) the original surface of a book original placed and opened upward on the original support table is brought into contact with a contact glass for information, and scanning is performed by a scanning optical system arranged opposite to the contact glass. In an apparatus that exposes and scans a document image, it is necessary to move the book document from a position where the document page of the book document is turned to a position where the exposure scan is performed, which reduces the document exposure scanning efficiency,
There was a problem that it was unavoidable to enlarge the device.

(2) A device for reading an original image by exposing and scanning the original surface of a book original placed and spread upward on the original mounting surface by a contact type reading sensor is called an enlargement of the apparatus. Although the point can be solved, since there is no means for pressing the manuscript surface of the book manuscript, there is a problem that the placed manuscript surface is easily lifted and reading scanning of the manuscript surface becomes unstable.

On the other hand, (3) in an apparatus that sucks and separates the original pages while moving a book original placed face-down and spread, the reliability of page turning is impaired due to the influence of the weight of the book original. In addition, there is a risk that the document surface may be rubbed when the page is turned and the document may be damaged, and furthermore, there is a problem that the size of the apparatus must be increased due to its configuration.

(4) a device for sucking and separating the original pages of a book original placed upward and spread, and (5) a roller, an arm, etc. for separating the original pages of the book original placed upward and open. In a flipping device or the like, the conventional page separation mechanism that moves in the upper space of the book document is complicated and large, and thus there is a problem that it is unavoidable to increase the size of the device.

In view of the current situation, the applicant of the present invention has disclosed, for example, a method of disposing a page pressing belt stretched along a document placing surface of a document table as disclosed in Japanese Patent Application No. 2-193589. The sheet storage means, which is provided with a detour portion separated from the document placement surface, forms a document storage surface between the document placement surface and the page holding belt. A book document page turning reading device (hereinafter, referred to as MFDS) for performing the page turning of the book document and the document reading scan by relatively moving a page turning reading unit provided with page suction means, page separating means, reading means and the like.
Called).

According to the proposed MFDS, as described in the above specification and the like, it is possible to completely automate the page turning operation of a book document and the document reading scan, which have required a great deal of labor for copying and the like. As a result, it is possible to realize a multi-function original reading system that significantly improves the productivity of copying and the like.

[0014]

Since the MFDS has a function of automatically performing scanning for reading the document information of the book document and turning over the document pages, the MFDS has a function.
By connecting the DS to a printer, copies of books and magazines can be made at high speed without human intervention.

[0015] However, as is well known, copying a general book or the like without the permission of the author is in violation of copyright law in principle except for purely private use.

Therefore, the present invention provides an image reading apparatus having means for reading a book document image including the MFDS, from an authorized specific book document, or
An object of the present invention is to provide an image reading apparatus capable of coping with a copyright problem by allowing only a specific user to read (copy) an image.

[0017]

The present invention has the following constitutions (1) to (8) in order to solve the above-mentioned problems.

(1) According to the first aspect of the present invention, the book document image is read by exposing and scanning the document table and the document surface of the book document placed and opened on the document table. Reading means for performing, detecting means for detecting an identification code attached to a predetermined position on the front cover or spine of a book document placed on a document table, and only when the identification code is detected by the detecting means. And control means for controlling the reading means so as to enable the reading operation by the reading means.

(2) According to the second aspect of the present invention,
1. In the image reading device according to 1, the control means includes:
Enables reading operation by reading means from outside the device
Input means for inputting an identification signal for performing identification.
The reading means only when the input of another signal is detected
The reader so as to enable the reading operation by
The stage was controlled .

(3) According to the third aspect of the present invention, the platen
Book original that reads the book original placed on it
Original reading mode and the sheet placed on the original tray
Sheet documents are fed one by one onto a platen, and the sheet
ADF mode for reading the original image can be selected
Image reading device with a
Identification mark attached to the designated position on the cover or spine of the original
Signal detection mode and book original reading mode
If it has been selected, the detection means detects the
Only when another code is detected by the reading means
Controlling the reading means so as to enable a reading operation.
And control means for controlling .

(4) According to the fourth aspect of the present invention, the platen
Reading a book original placed on the platen.
Book original reading mode to be performed and
Pressure to read the original image on any placed original
A plate mode, wherein the image reading device is selectable,
Prescribed book cover or spine of book manuscript placed on platen
Detecting means for detecting the identification code attached to the position;
If the original reading mode is selected,
Only when the identification code is detected by the informing means
To enable the reading operation by the reading means
Control means for controlling the reading means .

[0022] (5). In the present invention of claim 5, wherein, the book document reading mode in which the read-in book document placed on the document table, the sheet document placed on the sheet original tray 1 An ADF mode in which an original is fed to the original platen for reading each sheet and an ADF mode is selected, and an identification signal for enabling a reading operation by a reading means from outside the apparatus. Input means for inputting the identification signal, detection means for detecting the input of the identification signal, and when the book document reading mode is selected, the reading means only when the input of the identification signal is detected by the detection means. And a control means for controlling the reading means so as to enable the reading operation by means of the control means.

[0023] (6). In the present invention of claim 6, wherein the platen, the book original Ko読 seen up mode in which the read-in book document placed on the document table, on the document table An input means for inputting an identification signal for enabling a reading operation by a reading means from outside the apparatus, wherein a pressing plate mode for reading a document image on an arbitrary placed document is selectable; detection means for detecting an input of the identification signal, when the book original Ko読 seen up mode is selected, enabling the reading operation by the Yellow said reading means and an input of the identification signal is detected by said detecting means And control means for controlling the reading means.

(7) In the invention described in claim 7, the document table, reading means for reading a document image by exposing and scanning a document surface of a document placed on the document table, Output means for outputting image information read by the reading means, comprising: an operation for detecting an identification code assigned to a predetermined position on the document surface by exposure scanning of the document surface by the reading means. And controlling the output means so as to enable the output operation by the output means only when the identification code is detected by the detection operation.

(8) According to the invention of claim 8, in the image reading apparatus of claim 7, when the image information read by the reading means is output, the book document having an identification code attached to a predetermined position is output. If the information is read, additional information for identifying that fact is added to the output information by the output means.

[0026]

[Action] reading of the document that is attached with identification codes for the rights management Ru is automatically blocked.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. Prior to the description of the embodiments of the present invention, the configuration and operation of the above-mentioned MFDS (book page turning and reading apparatus) in which the present invention is implemented will be described.

First, with reference to FIG. 1, the configuration around the turn-over conveyance belt in the document reading apparatus according to the present invention will be described. FIG. 1 is a schematic cross-sectional view of a multi-function document scanner A (hereinafter, referred to as “MFDS”) embodying the present invention. In FIG. 1, the turning transport belt 8 includes a driving roller 12, a tension roller 13, a first belt supporting roller 97, a second belt supporting roller 98, a third belt supporting roller 99, and a fourth belt supporting roller 99.
It is supported by a belt support roller 100 and a fifth belt support roller 101.

At this time, the page transport belt 8 turns the page via the page turning roller 2, the first bias roller 3, the first roller 4, the second roller 5, and the pressing roller 6 of the page turning reading unit 1. It is supported so as to surround the reading unit 1.

The tension roller 13 is pulled to the left in FIG. 1 by a belt tension spring 112 to apply an appropriate tension to the turn-over transport belt 8 and press the original surface of the book original 92. The belt tension sensor 32 detects the tension of the turning transport belt 8 from the amount of movement of the tension roller 13.

On the other hand, on the upper part of the transport section 19 of the MFDS,
A sheet document tray 94 for setting the sheet document 200, a sheet document side guide 93 for adjusting a setting position of the sheet document 200 in the side direction, and a discharge tray 23 on which the discharged sheet document 200 is placed. , Respectively.

A sheet document sensor 25 for detecting the presence or absence of a set of sheet documents 200 and a sheet feeding device for separating and feeding the sheet documents 200 one by one are provided in a sheet feeding section 21 (upper right in FIG. 1) of the MFDS. Roller 96 and paper separation pad 95
And a paper feed sensor 26 for measuring the paper feed timing of the sheet document 200.
A first transport guide 108 and a second transport guide 109 that constitute a zero transport path are provided.

Further, a sheet original 200 is provided on the outer side of the turning and conveying belt 8 slightly to the left of the belt supporting roller 97.
There is a second bias roller 11 for charging at the time of conveyance, and a bias opposing roller 102 for support is provided inside the second bias roller 11.
There is.

At the lower end of the second transport guide 109,
A conveyance guide claw 115 is provided to assist conveyance of the sheet document 200. Further, the fourth belt supporting roller 100 includes a sixth opposing roller 105 and a fifth belt supporting roller 101.
, A paper discharge roller 107 is disposed on the outside of the turn-over transport belt 8 with the turn-over transport belt 8 interposed therebetween.

A third transport guide 110 constituting a transport path for the sheet original 200 is provided outside the turn-up transport belt 8 from the third belt support roller 99 to the drive roller 12.
Are arranged. Here, the second belt support roller 98
From the document table 18 to the third belt support roller 99.
Is used as a conveyance path for the sheet document 200.

The original placing surface 116 is formed in black so as to easily detect the leading end of the book original 92 when the size of the book original 92 is detected by pre-scanning. On the other hand, in FIG. 1, a paper discharge sensor 2
8, the presence or absence of a jam when the sheet original 200 is discharged is detected.

Further, a discharge separation claw 111 is formed below the discharge port 117 of the discharge section 22 to assist the smooth discharge of the sheet document 200. On the document table 18 of the MFDS, a fourth opposing roller 103 is disposed below the second belt supporting roller 98, and a fifth opposing roller 104 is disposed below the third belt supporting roller 99. 1 is the home position [1A]
The first opposing roller 1 is located below the turning roller 2 when
5, a second opposing roller 16 is provided below the pressing roller 6, and a second reading sensor unit 14 is provided below the first reading sensor unit 9.

The page turning reading unit 1 is at the end position (stop position of the page turning reading unit 1 in the reading mode of the sheet original 200).
At [1C], a third opposing roller 17 is provided below the first reading sensor unit 9, and a book size upper limit sensor 33 is provided below the turning roller 2.

Further, at the center of the document placing surface 116, a center reference positioning portion 24 for determining the placement position of the book document 92 is formed. This center reference positioning part 2
Reference numeral 4 denotes a center positioning plate 113 which abuts on the back of the book document 92 in a state where the book document 92 is placed, a center positioning spring 114 for giving an ascending habit to the center positioning plate 113, A book original sensor 27 that detects the amount of downward displacement of the center positioning plate 113 when the original 92 is placed is provided. Here, a part of the center positioning plate 113 is cut out, and below this notch, as shown in FIG. 67, a bar code scanner 3 as an identification code detecting means.
41a is arranged and connected to a one-chip microcomputer 330 as control means.

A stand 91 for supporting the MFDS substantially horizontally is provided below the document table 18 configured as described above. On the other hand, on both sides of a portion of the transport unit 19 in contact with the document table 18, a transport unit locking device 140 having a built-in transport unit lock sensor 31 is provided.
And the open / close state of the document table 18 are detected.

As described above, the MFDS is configured as a document reading apparatus having both functions of automatic document feeding / reading of the sheet document 200 and functions of reading a book document and automatic page turning. . Next, a configuration of a drive system in the document reading apparatus will be described with reference to FIGS.

FIG. 2 is a schematic cross-sectional view of the drive system of the MFDS. FIG. 3 is a schematic plan view of a drive system of the MFDS. FIG. 4 is a perspective view of an end of the page turning reading unit 1. 2 to 4, in the page turning reading unit 1, the scanning pipe 51 of the turning unit driving plate 49 is fitted and inserted into a pair of scanning rods 50 laid horizontally parallel to the front side and the back side of the MFDS. Thus, the MFDS is slidably supported along the left-right direction of the MFDS.

Each scanning rod 50 has an end fixed to the MFDS transport unit right side plate 58 and the transport unit left side plate 59. As shown in FIG. 3, a first shaft 64 and a second shaft 65 are rotatably supported between the transport unit front side plate 56 and the transport unit rear side plate 57, respectively. A drive pulley 62 and a driven pulley 63 are fixed to the first shaft 64 and the second shaft 65, one at the front side and one at the back, respectively. Two turning unit drive belts 52 are suspended from each other with 63 as a pair.

This page turning reading unit 1 is similar to that shown in FIG.
As shown in FIG. 4, the turning unit driving belt 52 is fixed to the turning unit driving belt 52 by a driving belt fixing plate 54 and a driving belt fixing screw 55 at a driving belt fixing portion 53 of the turning unit driving plate 49. It is driven by the rotation of 52.

Further, a first gear 66 is fixed to the first shaft 64 on the inner side of the rear plate 57 with the transport unit rear plate 57 interposed therebetween.
The rotation of the turning unit drive motor 60 is transmitted by meshing with the second gear 67 fixed to the output shaft of No. 0, and the driving pulley 62, the turning unit drive belt 52, the driven pulley 63, and the page turning reading unit 1 Each is driven.

On the other hand, as shown in FIG. 3, a third shaft 121 coaxially fixed to the fourth belt supporting roller 100, a fourth shaft 122 coaxially fixed to the driving roller 12, and a coaxial fixing to the paper feed roller 96. An eighth shaft 126 coaxially fixed to the seventh shaft 125 and the first belt support roller 97 is rotatably supported between the transport unit front side plate 56 and the transport unit rear side plate 57, respectively. 4th shaft 1
22, a third plate 57 is provided on the inner side of the
The gear 68 is fixed. The fourth gear 69 and the fifth gear
The gear 73 is coaxially fixed and rotatably supported by a shaft.

Further, the turning and conveying belt driving motor 61
A sixth gear 74 fixed to the output shaft of
The fourth gear 69 is in mesh with the third gear 68, and sequentially transmits the rotation of the turn-over conveyance belt drive motor 61, drives the drive roller 12, and rotates the turnover conveyance belt 8.

As shown in FIGS. 2 and 3, the eighth shaft 126 has a second paper feed pulley 130 at the back of the transport unit rear plate 57, and the seventh shaft 125 has a transport unit rear plate. The first paper feed pulley 129 is fixed to the back side of the paper feeder 57 via a paper feed clutch 128, and a paper feed drive belt 127 is suspended between the second paper feed pulley 130 and the first paper feed pulley 129. Have been.

As a result, the rotation of the first belt support roller 97 rotated by the rotation of the turning transport belt 8 is
It is sequentially transmitted to the eighth shaft 126, the second paper feed pulley 130, the paper feed drive belt 127, and the first paper feed pulley 129,
It is transmitted to the input side of the paper feed clutch 128.

The control signal sent from the main control board 310 (see FIG. 34) causes the paper feed clutch 12
8, the seventh shaft 125 and the paper feed roller 96 are driven. On the other hand, the first opposed roller 1 shown in FIG.
5, the second opposing roller 16, and the third opposing roller 17
Are driven by a drive transmission mechanism (not shown) in synchronization with the turning-over transport belt 8 and at the same peripheral speed.

Next, the configuration of the page turning reading unit 1 will be described with reference to FIGS. FIG.
4 to 4, a first turning unit side plate 40 and a second turning unit side plate 41 are disposed opposite to each other at a position sandwiching the turning conveyance belt 8, and the first turning unit side plate 40 and the second turning unit side plate 41 are arranged opposite to each other.
Turning unit side plate 40 and second turning unit side plate 4
1, a turning roller 2, a first bias roller 3, a first roller 4, a second roller 5, and a pressing roller 6.
Are rotatably supported. The support structure of each of these rollers is the same.

The first roller 4 will be described by way of example. As shown in FIG. 5, both ends of the first roller 4 are fixed to a first turning unit side plate 40 and a second turning unit side plate 41. The fifth shaft 123 is inserted through the hollow portion of the first roller 4 formed of a hollow shaft, and is driven by a pair of bearings 131 disposed on the fifth shaft 123.
By supporting both ends of the first roller 4, the first roller 4 is rotatably supported by the fifth shaft 123.

Here, the turning roller 2, the first bias roller 3, the first roller 4, the second roller 5, and
The holding roller 6 does not rotate by itself, but is turned over.
Is rotated only by the rotation of. In addition, on the outside of the first turning unit side plate 40 and the second turning unit side plate 41, at the longitudinally extending position of the first reading sensor unit 9 shown in FIG. Are supported rotatably.

A description will be given of a structure for supporting the rotation support rod 42 on only one side.
Is integrally formed with the sliding pipe 43, the second spring stoppers 48, and the upper limit detection unit 76, as shown in FIG. In FIG. 4, the inclination correcting spring 44 is formed by a torsion coil spring, one end of which is provided on the rotation support rod 42 and the other end thereof is provided on the first turning unit side plate 40.
Are fixed respectively.

When the inclination correcting spring 44 is in its natural state, that is, when no external force is applied to the inclination correcting spring 44, the axial direction of the sliding pipe 43 (the vertical direction in FIG. 4) and the first reading sensor Unit 9
(The moving direction of the first reading sensor unit 9 with respect to the first turning unit side plate 40 and the second turning unit side plate 41 (to be described in detail later)).

Thus, the first turning unit side plate 40
When the second turning unit side plate 41 and the second turning unit side plate 41 rotate integrally with each other around the respective rotation support rods 42, the inclination correcting spring 44 causes the first turning unit side plate 40 and the second turning unit side plate 41 to rotate. Rotational force always tries to return to the initial state,
The inclination of the first turning unit side plate 40 and the second turning unit side plate 41 is corrected as appropriate.

As shown in FIG. 4, the sliding pipe 43 is configured to slide smoothly on the sliding support rod 46. The upper end of the sliding support rod 46 is attached to the upper rod support plate 70, and
Are fixed to the lower rod support plate 71, respectively.

A first spring stopper 47 is formed on the upper rod support plate 70, and a second spring stopper 48 is formed above the sliding pipe 43. The sliding pipe 43 and the upper rod support plate 7
0, both ends of a turning unit vertical spring 45 mounted on the shaft are locked.

Here, the sliding pipe 43 is in contact with the lower rod support plate 71 in a normal state. However, when the page turning reading unit 1 receives an external force, the sliding pipe 43 resists the elasticity of the turning unit vertical spring 45. 4 along the sliding support rod 46. At this time, the second spring stopper claw 4 is attached to the sliding pipe 43.
The above-described sliding force for returning to the normal state is exerted by the elasticity of the turning unit vertical spring 45, which constantly presses the lower portion 8 downward.

In the sliding range above the sliding pipe 43, the scan cutoff sensor 34 arranged on the turning unit drive plate 49 detects the upper limit detecting section 76 provided on the sliding pipe 43. In this state, the sliding position above the sliding pipe 43 is set to be the limit position.

On the other hand, the turning unit driving plate 49 is
As shown in FIG. 7, the upper rod support plate 70, the lower rod support plate 71, the first spring stopper 47, the scanning pipe 51, the drive belt fixing portion 53, and the home detection filler 75 are integrally formed.

The driving belt fixing portion 53 of the turning unit driving plate 49 is fixed to the turning unit driving belt 52 by the driving belt fixing plate 54 and the driving belt fixing screw 55 as described above. Further, the scanning pipe 51 of the turning unit driving plate 49 is provided.
Are fitted so as to slide smoothly on the scanning rod 50.

As a result, as described above, the turning unit drive belt 52 is driven, and when the page turning reading unit 1 reaches the home position [1A], the home sensor 30 shown in FIG. The home detection filler 75 of the scanning pipe 51 is configured to be detected.

Next, with reference to FIGS. 6 to 8, the configuration of the transport section locking device in the document reading apparatus will be described. FIGS. 6 to 8 show the transport unit locking devices 140 (the same configuration on both sides) disposed on both sides of the MFDS.
FIG. 3 is a schematic diagram showing one configuration of the present invention.

The transport section lock device 140 includes a lock release solenoid 132, a lock rod 134, and the like. 6 to 8, the unlocking solenoid 132 is connected to one end of the unlocking solenoid arm 133.

The other end of the lock release solenoid arm 133 is rotatably supported by one end of a lock rod 134. An electromagnetic lock 141 is disposed on a side of the arm facing the unlocking solenoid arm 133 of the lock rod 134. On the other end of the lock rod 134, a lock claw 134a, which has a lock release solenoid arm 133 disposed therein and is bent in a key claw shape toward the side, is formed.

The lock rod 134 is rotatably supported by a rotating part 136, and the upper part of the rotating part 136 is
The lock spring 135 is connected to one end. The other end of the lock spring 135 is connected to a part of the transport section 19, thereby giving the lock rod 134 a rotating behavior in the clockwise direction in FIG.

The rotation of the lock rod 134 due to the rotation behavior is prevented at a predetermined angle by a lock claw stopper 137 arranged on the lower left side of the rotating portion 136.
On the other hand, on the document table 18 side, a lock pin 139 and a lock section 138 in which the transport section lock sensor 31 is arranged are formed.

In FIG. 6, when the transport unit 19 is closed while being pushed down, as shown in FIG.
The lower end of the lock claw 134a of the lock rod 134 contacts the lock rod 134, and the lock rod 134 is rotated counterclockwise about the rotation part 136 as a rotation axis. From this state, the transport unit 1
When the cover 9 is further closed, as shown in FIG. 8, the lock claw 134a of the lock rod 134 is hooked on the lock pin 139, and the transport section 19 is fixed to the document table 18.

When the transport unit 19 is locked,
The transport lock sensor 31 is operated by the lock claw 134a of the lock rod 134. The unlocking of the transport unit 19 is executed by pressing the open key 620 of the operation display board 313 shown in FIG.

That is, when the open key 620 of the operation display board 313 is pressed, the unlock solenoid 13
2 operates, the lock rod 134 rotates counterclockwise about the rotation part 136 as a rotation axis, and the lock claw 134a of the lock rod 134 is released from the lock pin 139. 19 is opened upward (see FIG. 10).

However, the open key 620 does not operate (does not accept an input) during a series of page turning scans of the book original 92, during reading scanning, and during conveyance of the sheet original 200. Have been.

When the open key 620 does not receive an input, the electromagnetic lock 141 is actuated, and the electromagnetic lock 141 causes the lock claw 134a.
Is kept engaged with the lock pin 139 so that the rotation of the lock rod 134 is restricted.

The MFDS configured as described above is similar to the MFDS shown in FIG.
As shown in FIG. 10, for example, it is used by being mounted on the upper part of a printer 300. FIG. 10 shows a state in which the transport section 19 of the MFDS is opened as described above.

Next, referring to FIGS. 11 to 13,
The configuration of the first reading sensor unit 9 inside the page turning reading unit 1 in this document reading apparatus will be described. FIG. 11 shows the first reading sensor unit 9.
12 is a side view near the end of the first reading sensor unit 9, and FIG. 13 is a detailed sectional view of the end of the first reading sensor unit 9.

Since both ends of the first reading sensor unit 9 have the same configuration, only one of them will be described here. As shown in FIG. 11, the upper part of the first reading sensor unit 9 is covered with a reading sensor bracket 146 formed in a U-shape.
6 is arranged to be vertically movable. The reading sensor bracket 146 is integrally formed with the page turning reading unit 1 by fixing both ends thereof to the first turning unit side plate 40 and the second turning unit side plate 41.

A reading sensor stud 148 is fixed downward slightly inside the end of the reading sensor bracket 146. This reading sensor stud 1
As shown in FIG. 13, the lower end of 48 is fitted to a boss 149 formed at the end of the first reading sensor unit 9. Thus, the first reading sensor unit 9 is supported by the reading sensor bracket 146 via the reading sensor stud 148 so as to be vertically movable.

Here, the reading sensor stud 148 and the boss 149 are configured so as not to be disengaged by a flange-shaped hook formed at the lower end of the reading sensor stud 148. Also, the reading sensor stud 148 of the reading sensor bracket 146
And the boss 149 of the first reading sensor unit 9
A reading sensor spring 147 is mounted on the shaft between the base and the reading sensor spring 147.
, The downward reading behavior is urged to the first reading sensor unit 9.

As a result, the first reading sensor unit 9 is always located at the lowermost portion of the page turning reading unit 1 and, when it receives an external force due to, for example, unevenness on the surface of the book original 92, the first reading sensor unit 9 Without going against
The book document 92 is moved up and down smoothly along irregularities on the surface. As shown in FIG. 11, a read sensor release solenoid 150 is attached to an end of the first read sensor unit 9 via a read sensor release solenoid arm 151.

The reading sensor release solenoid 150
As shown in FIG. 12, the first turning unit side plate 40
When the page turning reading unit 1 is moved without performing the document reading operation by the first reading sensor unit 9, for example, at the time of page turning operation, at the time of idle scanning of a non-read page, and at the time of sheet document When returning to the scan mode, the read sensor release solenoid 150 is operated.

This read sensor release solenoid 150
Is activated, the first reading sensor unit 9 is moved upward against the elasticity of the reading sensor spring 147, and the original scanning surface is retracted (separated) from the surface of the original.
Is done. The first reading sensor unit 9 uses a signal of the encoder 152 generated by the rotation of the turning roller 2 as a reference signal for reading the image. The turning roller 2 and the encoder 152 are configured as shown in FIG.

FIG. 14 is a side view of the turning roller 2 on the back side. In FIG. 14, a filler 153 formed in a crown shape is disposed at an end on the far side of the turning roller 2. The filler 153 is formed by forming equally spaced slits of the same width on the circumference.

The encoder 152 is fixed to the second turning unit side plate 41 so as to sandwich the filler 153 up and down. Thereby, this encoder 152
In response to the rotation of the turning roller 2, the filler 153 periodically interrupts the detection optical path of the encoder 152,
The first reading sensor unit 9 generates a reference signal for image reading.

On the other hand, the book original 92 with respect to the original
Is performed by the center reference positioning unit 24. A detailed sectional view of the center reference positioning portion 24 is shown in FIG.
Shown in the figure. The center reference positioning section 24 is a reference position at the time of reading scanning of the book document 92 and at the time of scanning turning pages.

The center reference positioning section 24 is located on the original placing surface 1
It is configured in a groove formed at the center of the 16. In this groove, a center positioning plate 113 is provided with an original placing surface 116.
Are fitted to be able to move up and down. Central positioning plate 1
13 is always given an ascending habit by a central positioning spring 114 disposed at a lower portion thereof.

The upward movement of the center positioning plate 113 due to this habit is prevented by the stopper claw 119 of the center positioning plate 113 abutting against the stopper 118 formed at the edge of the groove of the document placing surface 116. , Hirao, 1st
It is stopped at the position shown by the broken line in FIG. Original loading surface 1
The setting of the book document 92 on the sheet 16 is performed by placing the spine (binding portion) of the book document 92 on the center positioning plate 113 in the groove.

That is, when the spine (binding portion) of the book document 92 is placed on the center positioning plate 113 in the groove, the center positioning plate 11
3 is pushed down. Thereby, the original placing surface 1
Book manuscript sensor 27 arranged on the side in the groove of 16
However, the movement of the center positioning plate 113 is detected, and the set of the book document 92 is recognized.

An operation display board 313 of the MFDS is arranged on the entire surface of the document table 18 (see FIGS. 9 and 10). This operation display board 313
Has a large number of input keys as shown in FIG. Hereinafter, the functions of these input keys will be described in order.

The start key 600 is pressed to instruct the start of reading of a document. The enter key 601 is
It is pressed to confirm the input when inputting numeric keys or selecting input on the liquid crystal display panel. Numeric keypad 602
Is used to set the number of prints of a document, the number of pages turned, and the like.

The reading start page selection key 603 is a key for selecting from the “left” or “right” page toward the book document 92 to start reading in the book document reading mode. Each time the key is pressed once, the reading start page of the book document 92 is switched between left and right.

The read start page at the time of initial setting of this key is set to the “left” page, and the read start page selected by this key is
Which one of the two is left or right is indicated by which of the two reading start page display LEDs 631 is turned on.

The total page setting key 606 is pressed to set the total number of pages to be read when inputting the number of pages to be turned in the book original reading mode.

The total number of read pages of the book original 92 can be determined by pressing the read total page setting key 606.
After the number of pages is input using the ten keys 602, the number is determined by pressing the enter key 601. The determined value is displayed on the liquid crystal display panel 630.

A book size selection key 607 is pressed to select either the "automatic book size recognition mode" or the "book size key input mode" in the book original reading mode. If this key is 1
Each time the button is pressed, the display of the book size display LED 632 is switched in the order of "auto", "fixed form", and "unfixed form (mm input)", and the mode displayed by the book size display LED 632 is selected.

When the book size selection key 607 is initially set, the display of the book size display LED 632 is "automatic", and "automatic book size recognition mode" is selected. Here, the book size key input mode includes “regular form” and “irregular form (mm input)”.
Only when the book size is A5, B5, or A4, by selecting "standard", the book size can be input using the standard book size selection key 619.

When the fixed form book size selection key 619 is 1
Every time the button is pressed, the display of the fixed form book size display LED 633 is switched in the order of “A5”, “B5”, and “A4”, and the selected book size is displayed and recognized. When the standard book size selection key 619 is initially set, the display of the standard book size display LED 633 is “A
4 ". However, the book size here refers to the size of the cover of the book document 92.

Here, when the book original 92 has a size other than the standard book size, the book size selection key 6
07, “undefined shape (mm input)” is selected, and the ten-key 602 is used to set the vertical size of the set book original 92,
After inputting the horizontal size (in mm), the user depresses an enter key 601 to determine the book size.

When the size of book original 92 is determined in this way, the input size value is displayed on liquid crystal display panel 630. The book binding section mask area setting key 608 is used to set the non-read area (mask area) from the center of the center reference positioning section 24 to “left (−)” or “right (+)” in the book original reading mode. The button is pressed to set which one.

That is, when forming a mask area in the book binding portion of the book original 92, first, the left or right page of the book original 92 is set with the book binding section mask area setting key 608. Then, after inputting the length (in mm) of the set “left mask area (−)” or “right mask area (+)” using the numeric keypad 602, the input value is input using the enter key 601. Confirm. Thus, the book manuscript 9
When the second mask area is determined, the input value is displayed on the liquid crystal display panel 630. The value of the mask area at the time of initial setting of the book binding section mask area setting key 608 is “± 10 mm”.

A reading area selection key 609 is used to set the reading area of the book original 92 to any one of “single page (left)”, “single page (right)”, and “both pages” in the book original reading mode. Is pressed when selecting whether or not to use.

Each time the reading area selection key 609 is pressed once, the display of the reading area display LED 636 changes to
Switching is performed in the order of “one page (left)”, “one page (right)”, and “both pages”, and the selected reading area is displayed and recognized.

When the reading area selection key 609 is initially set, the display of the reading area display LED 636 is “both pages”. Here, when “single page (left)” is selected, the scanning for reading only the left page toward the book document 92 is performed, and the scanning for reading the right page is not performed. When “one page (right)” is selected, the scanning for reading only the right page toward the book document 92 is performed, and the scanning for reading the left page is not performed.

The double-page spread key 610 is used to select “two-page double-page continuous reading mode” in the book document reading mode.
In the “duplex mode”, the button is pressed to instruct to print out the read document information at the same magnification.

A continuous spread reduction key 611 is used to instruct that the read document information be printed out at a reduced magnification in the “two-page spread continuous reading mode” of the book document reading mode and the “double-sided mode”. Pressed when performing.

At this time, the setting of the reduction ratio of the document information is
This is performed by operating the print scaling key 614. The reference reduction ratio at the time of initial setting of the two-page spread continuous reduction key 611 is “document size × 0.71”.
(A3-> A4 / B4-> B5) ".

When the book original reading mode is the “two-sided mode” of the “spread one-page separation reading mode”, either side is turned on.
Further, the user presses the button to select which side to print from among three three-sided modes of “spread two-sided mode”, “original two-sided mode”, and “sequential two-sided mode”.

Each time the duplex mode selection key 612 is pressed once, the display of the duplex mode display LED 634 is switched in the order of “spread duplex mode”, “original duplex mode”, and “sequential duplex mode”. The reading area is displayed and recognized.

When the duplex mode selection key 612 is initially set, the display of the duplex mode display LED 634 is "Original duplex mode". Here, when the “spread double-sided mode” is selected, the left page of the left and right pages of the spread book document 92 is turned upside down, and the right page is turned upside down, and duplex printing is executed.

At this time, the reading start page selection key 6
If the reading start page of the book document 92 is set to “right” by 03, the first print of the first sheet is a single-sided print.

Here, the "original double-sided mode"
Is selected, of the left and right pages of the opened book original 92, the right page is turned up, and the left page of the next page turned by the page turning operation is turned upside down.
Double-sided printing is performed. That is, in the “original double-sided mode”, the book is printed in exactly the same manner as the binding of the book document 92 to be read.

At this time, the reading start page selection key 6
According to 03, when the reading start page of the book document 92 is set to “right”, the first print is single-sided as in the case of the “double-sided spread mode”. Further, when the “sequential double-sided mode” is selected, the page set by the reading start page selection key 603 out of the left and right pages of the opened book original 92 is turned into a table, and the page turning operation is performed. With the next page turned upside down, double-sided printing is subsequently performed in the order of sequential reading.

Double-page spread high-speed print setting key 613
Indicates that the operation of the page turning reading unit 1 is continuously performed without decelerating or stopping the operation of the page turning reading unit 1 near the binding portion of the book document 92 in the “single-sided mode” of the “two-page spread continuous reading mode” of the book document reading mode. Is pressed to instruct continuous printing of both left and right pages of the book original 92.

The print scaling key 614 is a key for setting the scaling when the read image is scaled and printed. When the print scaling key 614 is pressed, a preset scaling factor is displayed on the liquid crystal display panel 630. Here, the magnification is set by moving the cursor to the desired magnification with the cursor movement key 617,
It is determined by pressing the enter key 601.

An image processing setting key 615 is a key for setting an image processing mode when a read image is processed and printed. When the image processing setting key 615 is pressed, a preset image processing mode is displayed on the liquid crystal display panel 630.

Here, the image processing mode is determined by moving the cursor to the desired image processing mode with the cursor moving key 617 and then pressing the enter key 601. The mode setting selection key 616 is a key for setting an operation mode of the MFDS.

When this mode setting selection key 616 is pressed, a preset MFDS is displayed on liquid crystal display panel 630.
Is displayed. Here, the operation mode of the MFDS is determined by setting the operation mode cursor of the desired MFDS and then pressing the enter key 601.

The cursor movement key 617 is a key for moving a cursor to each selection area displayed on the liquid crystal display panel 630. A read skip page setting key 618 is a key for setting a page to be skipped without performing reading scan in the book document reading mode. That is, when there is a page to be skipped without performing the original reading scan among the pages of the book original 92, the user first presses the read skip page setting key 618, and then the book original 92
The number of the page to be skipped (skip page) is determined by using the numeric keypad 6.
After inputting with 02, the enter key 601 is pressed to confirm this skip page.

The skip page thus input is displayed on the liquid crystal display panel 630. The standard book size selection key 619 is a key for selecting the book size of the book original 92.

As described above, the book size key input mode includes “regular form” and “irregular form (mm input)”, and only when the book size is A5 / B5 / A4.
By selecting "standard form", it is possible to input a book size using the standard form book size selection key 619.

When this standard book size selection key 619 is 1
Every time the button is pressed, the display of the fixed form book size display LED 633 is switched in the order of “A5”, “B5”, and “A4”, and the selected book size is displayed and recognized.

When the standard book size selection key 619 is initially set, the display of the standard book size display LED 633 is "A4". However, the book size here refers to the size of the cover of the book document 92.

The open key 620 is pressed to release the MFDS transport section 19. The sheet original set selection key 625 is used in the sheet original reading mode.
In the “single-sided original reading mode” of the “sheet original through mode”, a key for selecting one of “upward” and “downward” for the original surface of the sheet original 200 set on the original placing surface 116. is there.

When this sheet original set selection key 625 is set to 1
Each time the button is pressed, the display of the sheet document set display LED 635 is switched in the order of “upward” and “downward”,
The selected sheet document setting surface is displayed and recognized. When the sheet original set selection key 625 is initially set, the display of the sheet original set display LED 635 is "upward".

Next, the printer 3 shown in FIG. 9 and FIG.
00 will be described. FIG. 17 is a schematic sectional view of the printer 300. The image information after the image processing is written on the photosensitive drum 170 in a writing unit of the printer 300 by raster scanning of laser light in the form of a set of light points.

At this time, a semiconductor laser is used as the laser light source. FIG. 18 is a plan view of a writing unit of the printer 300. In FIG. 18, laser light emitted from a semiconductor laser 171 is collimated by a collimator lens 17.
The light beam is changed to a parallel light beam at 2 and the aperture 173 gives
The light beam is shaped into a light beam of a certain shape.

The shaped beam is made incident on the polygon mirror 175 by the first cylinder lens 174 in a compressed state in the sub-scanning direction. The polygon mirror 175 has an accurate polygonal shape, and is rotated by a polygon motor 176 at a constant speed in a constant direction.

The rotational speed of the polygon mirror 175 is
It is determined by the speed of the photosensitive drum 170, the writing density, and the number of surfaces. The reflected light of the laser light incident on the polygon mirror 175 is deflected by the rotation of the mirror. The deflected laser light is applied to each fθ lens 177
a, 177b and 177c.

The fθ lenses 177a, 177b,
177c is a scanning drum having a constant angular velocity,
It has a function of converting the scanning light beam to scan at a constant speed on the zero, a function of forming an image of the scanning light so as to have a minimum light spot on the photosensitive drum 170, and a function of correcting the surface tilt.

Each fθ lens 177a, 177b, 177
The light that has passed through c is guided to the synchronization detection sensor 179 by the synchronization detection mirror 178 outside the image area, and a synchronization signal for outputting a cue signal in the main scanning direction is output. Only the output for the line is output.
By repeating this, one image is formed. On the other hand, a photosensitive layer is applied to the surface of the photosensitive drum 170.

Here, 780 nm of the semiconductor laser 171 is used.
Organic photoreceptors (OPC), α-Si, Se—Te, and the like are known as photoreceptors having sensitivity to such a wavelength. In this embodiment, an organic photoreceptor is used.

In general, in the case of laser writing, there are an N / P process in which light is applied to an image portion and a P / P process in which light is applied to a background portion. An N / P process that shines light on the part is adopted.

In FIG. 17, the surface of the photosensitive drum 170 is uniformly negatively charged by a scorotron-type charging charger 180 in which the photosensitive drum 170 has an alligator grid.

Next, the negatively charged photosensitive drum 1
When the image portion 70 is irradiated with laser light to lower the image portion potential, the background potential of the photosensitive drum 170 is −750 to −800 V and the image portion potential is −50 V
An electrostatic latent image of about V is formed.

This electrostatic latent image is applied to a developing roller of a developing device 181 by applying a bias voltage of -500 to -600 V.
The image is visualized by the negatively charged toner. The image visualized by the developing device 181 is the photosensitive drum 1
The image is transferred onto the paper surface of the transfer paper fed in synchronization with the rotation of 70 by the transfer action of a transfer charger 182 that applies a positive potential charge from the back side of the transfer paper.

The transfer paper on which this image has been transferred is separated from the transfer charger 182 by a separation charger 183.
AC charge is removed by the photosensitive drum 17
0 surface.

At this time, the toner remaining on the photosensitive drum 170 without being transferred onto the transfer paper is scraped off from the surface of the photosensitive drum 170 by the cleaning blade 184, and is disposed around the cleaning blade 184. Is collected in the drained tank 185. In addition, the pattern of the potential remaining on the surface of the photosensitive drum 170 is erased by irradiating light with the charge removing lamp 186.

A photo sensor 187 is provided immediately downstream of the developing device 181. This photo sensor 187
Is composed of a light receiving element and a light emitting element, and measures the reflection density of the surface of the photosensitive drum 170, and when the reflection density (toner density after development) becomes equal to or less than a preset reference value. , A toner supply signal for supplying new toner to the developing device 181 is output.

That is, the photo sensor 187 writes a fixed pattern (pure black or halftone dot pattern) at the position corresponding to the reading position of the photo sensor 187 by the optical writing section, and develops this pattern. The density of the developed image is determined from the ratio of the light reflectance of the subsequent pattern portion to the light reflectance of the photosensitive drum 170 outside the pattern portion, and when the density of the image is lower than its reference value. It is configured to output a toner supply signal.

Here, when a new toner supply is insufficient, the photo sensor 187 takes advantage of the fact that even if a toner supply signal is output, the development density does not increase.
May also be used as a sensor for detecting a shortage of the remaining amount of toner.

On the other hand, the printer 300 of this embodiment is provided with a plurality of cassettes 188a and 188b, and is configured so that the transfer paper on which an image has been transferred once can be fed on both sides through a refeed loop 189. ing.

That is, in FIG. 17, when the start button of the printer 300 is pressed after a predetermined cassette is selected, the selected paper feed roller 190a, 190b of each cassette 188a, 188b is fed. The rollers are rotated, and the transfer paper in the cassette is fed until it hits the nip of the registration roller 191.

The registration roller 191 is started to rotate at the timing when the position of the image formed on the photosensitive drum 170 and the position of the transfer paper are synchronized, and is transferred toward the surface of the photosensitive drum 170. Feed the paper.

As a result, as described above, the image is transferred to the transfer paper, and after being separated from the surface of the photosensitive drum 170, the transfer paper is suction-conveyed to the separation conveyance section 192, where the heat roller 193 and The toner transferred onto the paper surface is fixed by a fixing roller including a pressure roller 194.

In the transfer paper on which the toner is fixed, at the time of normal printing, the switching claw 195 faces a position as shown in FIG.
The sheet is discharged onto the sheet discharge tray 169 through the sheet discharge port No. 00.

Here, when the print mode of the printer 300 is the “double-sided mode”, the switching claw 195 is
The position is switched to the position shown in (b), and the transfer paper is conveyed toward the double-sided conveyance path formed on the left side of the printer 300.

This transfer paper passes through the reversing guide claw 196 and is once guided onto the reversing guide tray 197.
When the reversing guide pawl 196 is switched and the reversing guide roller 198 is rotated (reversed) in reverse, the registration roller 19 is again passed through the re-feeding loop 189.
The sheet is fed until it comes into contact with one nip.

The transfer paper re-fed in this way is
In the same manner as in the normal printing described above, the photosensitive drum 1
After the toner image formed on 70 is transferred and fixed,
The paper is discharged onto the paper discharge tray 169 via the switching claw 195 switched to the initial state shown in FIG.

In this case, the transfer sheet is discharged with the image fixing surface of the transfer sheet facing the stacking surface of the discharge tray 169 during discharge in the single-sided print mode.
Is set, the switching claw 195 is switched to the position shown in FIG. 19B in the same manner as in the above “double-sided mode”, and the transfer paper is temporarily discharged without being discharged as it is. It is transported toward the transport path.

Then, the rear end of the transfer paper is
5 immediately after that, the switching claw 195 is moved to the position shown in FIG.
(C), the rotation direction of the switchback roller 199 is reversed, and the transfer paper guided to the double-sided conveyance path is switchback-conveyed.
The paper is discharged onto the paper discharge tray 169 through the paper discharge port of the printer 300.

In the “back side discharge mode”, the transfer sheet printed on one side is transferred to the discharge tray 169 with the image fixing surface thereof.
The sheet is discharged onto the sheet discharge tray 169 in such a manner as to face the stacking surface of the sheets, so that the transfer sheets are discharged in the same order as the read pages of the original document.

By the way, the page turning reading unit 1
As described with reference to FIG. 4, between the first turning unit side plate 40 and the second turning unit side plate 41, the turning roller 2, the first roller 4, the second roller 5, the pressing roller 6, and , The first bias roller 3 are rotatably arranged.

As shown in FIG. 20, a turning transport belt 8 is wound around the turning roller 2, the first roller 4, the second roller 5, the pressing roller 6, and the first bias roller 3. I have.

The first bias roller 3 is connected to a first high-voltage power supply 320. The first bias roller 3 has two ports for suction and suction.
The AC voltage of each frequency for static elimination is configured to be supplied. Further, inside the page turning reading unit 1, between the turning roller 2 and the first reading sensor unit 9, a turning guide 10 is further provided. The page storage units 7 are respectively provided along the peripheral surface.

The page storage section 7 is provided with a page turning sensor 29 including a photo sensor and the like for detecting an error at the time of turning the page. The page turning sensor 29 may be arranged on the page turning guide 10.

The first reading sensor unit 9 is disposed between the turning roller 2 and the pressing roller 6 as described with reference to FIG. The first reading sensor unit 9 is attached to the page turning reading unit 1 so as to be movable up and down by about 3 mm.
It is configured to be pressed down by 47 to be brought into close contact with the book original 92 or the original surface of the sheet original 200.

The first reading sensor unit 9
Is an LED as a document illumination system as shown in FIG.
316, an RMLA 81 (roof mirror lens array) as an image forming system for the original image, and a Si equal-magnification sensor 315 as a photoelectric conversion system for converting a light image of the formed original into an electric signal.

The reading of the original by the first reading sensor unit 9 is performed as follows. In FIG. 21, first, light emitted from the LED 316 is condensed on the original surface by the bar lens 83, and the original is illuminated.

Next, the reflected light from the original surface is reflected by the optical path separating mirror 84, passes through the LA 85 (lens array) and the RMA 86 (roof mirror array), and is reflected again by the optical path separating mirror 84. You. The image light of the document reflected by the optical path separating mirror 84 is imaged on the light receiving surface of the Si equal-magnification sensor 315, and the image information imaged by the Si equal-magnification sensor 315 is converted into an electric signal. Converted and read.

Next, a basic page turning operation in the embodiment of the present invention configured as described above will be described.
First, reading of a document in the present embodiment is performed in the following procedure.

When the original is the book original 92, the user presses the open key 620 on the operation display board 313 to open the book shown in FIG.
As shown in the figure, the transport unit 19 is opened upward, the binding portion (back) of the book document 92 is set on the center reference positioning unit 24 of the document table 18, and the reading start page of the book document 92 is opened upward. Then, the transport unit 19 is closed as shown in FIG.

In this state, each key of the operation display board 313 is operated to set the reading conditions of the book original 92, and then the start key 600 is pressed to start the MFDS. As a result, as shown in FIG. 1, the turning unit drive belt 52 is connected to the turning unit drive motor 6.
0 (see FIG. 34), the page turning reading unit 1 starts moving rightward from the leftmost home position position [1A], and the movement of the page turning reading unit 1 causes the first reading sensor to move. Unit 9
Reads the document information of the book document 92.

At this time, the rotation of the turning-over transport belt 8 is stopped, and the original surface of the opened book original 92 is pressed from above. Further, as described above, the page turning reading unit 1 is rotated about the rotation supporting rod 42 as a fulcrum, and the sliding pipe 43 integrated therewith moves up and down along the sliding supporting rod 46. As a result, along the manuscript surface of the book manuscript 92,
The document is moved while the first reading sensor unit 9 is in close contact with the document surface.

Further, this page turning reading unit 1
Reaches the middle position [1B] of reading the book document substantially at the center of the book document 92, the first bias roller 3
An AC voltage for suction is applied from the first high-voltage power supply 320 shown in FIG. 20 to form a stripe-shaped charge pattern on the turning-over transport belt 8.

As described above, the page turning reading unit 1
Moves to the end position [1C] at the right end in FIG. 1 while forming a stripe-shaped charge pattern on the turn-over transport belt 8, and reads the document information of the book document 92 by the first reading sensor unit 9. .

When the reading of the document information of the book document 92 is completed as described above, the page turning reading unit 1 shifts from the end position [1C] to the home position [1A] as shown in FIG. It is returned and moved toward.

At this time, as shown in FIG. 23, an unequal electric field is generated on the turn-over conveyance belt 8 by the charge pattern formed at the time of the reading operation. Is electrostatically attracted to the turn-over transport belt 8.

Accordingly, in this state, the page turning reading unit 1 is moved toward its end position [1C], and the page turning reading unit 1 is moved to the position shown in FIG.
When reaching the turning start position [1D] shown in FIG.
As shown in FIG. 4, the end of the right page of the book document 92 is wound into the page turning reading unit 1 together with the turning conveyance belt 8.

As described above, the page turning reading unit 1
The leading edge of the document entangled in the paper is gradually separated from the conveyer belt 8 by the curvature separation of the turning roller 2 and the stiffness of the document accompanying the movement of the page turning reading unit 1. Is done.

The document thus gradually separated from the page transport belt 8 is moved along the page turning guide 10 shown in FIG. It is led into the part 7.

As shown in FIG. 20, the page storage section 7 is formed in a cylindrical shape, and is formed by winding a document wound in the page turning reading unit 1 along its inner peripheral surface. Thus, one page of the document that has been read can be stored in an extremely small space.

Therefore, the page turning reading unit 1
According to this, as shown in FIG. 22, the page turning reading unit 1 is returned from the turning start position [1D] to the winding completion position [1E], thereby completing the reading. The original for the page and the original for the next page to be read by the next reading operation are
It can be separated very smoothly.

The document stored in the page storage unit 7 is moved from the winding completion position [1E] to the left page of the book document 92 beyond the center of the book document 92. The document is further returned and moved toward the page discharge position [1F], so that the document is turned relative to the page turning reading unit 1 and the document stored in the unit. The discharge from the first page storage unit 7 starts.

Then, this page turning reading unit 1
Is returned to the home position [1A], and when the movement is completed, the document stored in the page storage section 7 of the page turning reading unit 1 is completely discharged and reading is completed. The turning operation for one page of the original is completed.

On the other hand, during the document turning operation, the first time from when the winding of the document to the page storage section 7 of the page turning reading unit 1 is started to when the winding of the document is completed, the first time. For the bias roller 3,
The charge pattern formed on the turn-over transport belt 8 is programmed to be neutralized by applying an AC voltage for neutralization from the first high-voltage power supply 320 shown in FIG.

Therefore, this page turning reading unit 1
During the return movement of the document, no electrostatic attraction force is generated between the document that has been read and the transport belt 8 that turns the document, so that the document winding operation and the discharging operation are performed. It can be performed extremely smoothly.

In the embodiment of the present invention, FIGS.
As shown in FIG. 4, an alternating voltage for suction is applied from a high-voltage power supply 320 to the turning transport belt 8 composed of an endless belt, and an alternating stripe shape or a checkered pattern is formed on the surface of the turning transport belt 8. By forming a charge pattern such as this, an unequal electric field is generated in the turn-over conveyance belt 8, and the document is held and conveyed and the pages are turned over.

According to the page turning method, the document can be held and conveyed and the page turning operation can be performed extremely smoothly.

The basic structure of the page turning method and the principle of electrostatic attraction will be described below. As the turning transport belt 8 used in the page turning method, a two-layered belt obtained by applying a conductive treatment to the back surface of a dielectric formed in an endless belt shape was used.

As means for generating an unequal electric field with respect to the turning and conveying belt 8, for example, the first bias roller 3 rotatably supported by bringing the peripheral surface into contact with the surface of the turning and conveying belt 8 may be used. An AC voltage for adsorption may be applied by the first high-voltage power supply 320.

As shown in FIG. 20 and FIG. 23, while the alternating electric field is applied to the first bias roller 3 with the conductive layer 8b of the turning transport belt 8 serving as a ground surface, the turning transport belt 8 and the first bias By relatively moving the roller 3, a stripe-shaped charge pattern is formed on the surface of the dielectric 8 a of the turn-over transport belt 8.

As a result, an uneven electric field is generated in the vicinity of the surface of the dielectric 8a of the turn-over conveyance belt 8. When a dielectric material such as paper to be read is brought close to the unequal electric field, the inside of the paper is polarized, and the electric field is unequal. Works.

As a specific configuration of this embodiment, an endless endless belt 10 having a thickness of 75 μm and a 10 μm-thick aluminum vapor-deposited layer (conductive layer 8 b) formed on a 75 μm-thick PET film (dielectric 8 a) was used. A belt was used, and the pitch of the charge pattern formed on the belt was 2.4 mm. That is, the reading speed of the book original 92 is set to 120 mm /
s, AC frequency 50Hz, applied voltage ± 2kVp-p
And Further, FIG. 25 shows the experimental value of the pitch characteristic of the conveying force when the applied voltage was fixed at ± 2 kVp-p.
FIG. 27 shows the experimental value of the pitch characteristic of the attraction force when the applied voltage is fixed to ± 2 kVp-p, and FIG. 27 shows the experimental value of the applied voltage characteristic of the transport force when the pitch of the charge pattern is fixed to 2.4 mm. FIG. 28 shows the charge pattern pitch of 2.
The experimental value of the applied voltage characteristic of the attraction force when it is fixed at 4 mm is shown.

As is clear from these experimental values, the pitch of the charge pattern and the applied voltage used in the present embodiment are not limited to the values described above.
The pitch of the charge pattern is 0.5 mm to 10 mm
And the applied voltage is ± 1 k
What is necessary is just Vp-p or more.

In this embodiment, the frequency of 2 kHz and the applied voltage of ± 2 kVp-p are used as the high-frequency AC voltage for static elimination, but the static elimination effect can be obtained for each of these values. Any value may be used.

In the above embodiment, an AC voltage is applied to the first bias roller 3 from the first high-voltage power supply 320 to charge the transport belt 8 positively or negatively. An unequal electric field is generated in the vicinity to hold and transport the document and turn the pages.

Here, if the voltage applied to the transport belt 8 is an alternating voltage, the original can be sucked, and it is not necessary to limit the voltage to only the AC voltage. That is,
AC voltage is a current that changes its direction periodically,
This means that the average value is “0” over one cycle, and the present invention is not limited to such a voltage.

However, by setting the voltage applied to the conveyance belt 8 to an AC voltage, a prima facie effect that the original attraction force of the conveyance belt 8 is made uniform can be obtained. Therefore,
As means for generating an uneven electric field in the vicinity of the surface of the conveyor belt 8, a configuration other than the above embodiment may be employed.

For example, as means for generating an uneven electric field in the vicinity of the surface of the conveyor belt 8, FIGS.
As shown in FIG. 0, a checkerboard-like unevenness is formed on the outer peripheral surface of the bias roller 3-A made of a conductive electrode roller such as a metal, and the first high-voltage power supply 320 is provided on the bias roller 3-A.
Thus, a DC voltage may be applied.

According to this means, only the convex portion 3a forming the outer peripheral surface of the bias roller 3-A comes into contact with the surface of the conveyor belt, and the concave portion 3b comes out of contact. As a result, a checkered high-density charge pattern corresponding to the unevenness of the peripheral surface of the bias roller 3-A is formed.

As a result, a stronger electric field exists at the boundary between the charged area (+ part in FIG. 29) and the non-charged area on the conveyor belt 8 which is a dielectric, and an uneven electric field is generated. The pages of the book document are electrostatically strongly attracted to the conveyor belt 8 by the strong electric field formed and generated at each edge of the above-described checkered charge pattern.

When the charge pattern is a checkerboard pattern as in the second embodiment, the unit of the pattern is substantially square, so that the stripe pattern as in the first embodiment shown in FIG. Since the length of the edge portion existing in the unit area is approximately double as compared with the charge pattern of the pattern, the holding and attracting force of the document page is doubled, and the reliability of the page turning operation is improved.

On the other hand, in the second embodiment, a checkerboard pattern is formed by forming irregularities on the peripheral surface of the bias roller 3-A. However, for example, printing or printing is performed on the surface of an insulating roller made of resin or ceramic. A checkerboard-like conductive layer pattern may be formed by vapor deposition or the like, or a checkerboard-like sheet-like electrode may be adhered, and the conductive layer pattern or the electrode may be electrically coupled.

As a third embodiment for generating an uneven electric field in the vicinity of the surface of the conveyor belt 8, as shown in FIG. 31, a charge applying member entirely made of a conductive material such as metal is used. On the outer peripheral surface of the roller-shaped electrode 3-B, a large number of flange-shaped electrode portions 3c and a circumferential groove-shaped non-electrode portion 3d are alternately formed along the axial direction of the roller-shaped electrode 3-B. They may be arranged so that a DC voltage is applied to the roller-shaped electrodes 3-B by the first high-voltage power supply 320.

According to the third embodiment, similarly to the first embodiment, a stripe-shaped electric charge in which charging areas and charge charging areas are alternately arranged linearly on the surface of the conveyor belt 8. A pattern is formed.

On the other hand, in the fourth embodiment shown in FIG. 32, the charge applying means in which the electrode portions 3c and the non-electrode portions 3d are alternately arranged is replaced with a With the tooth-shaped electrode plate 3-C, the same operation as that of the third embodiment can be obtained.

In each of the third and fourth embodiments, since both the roller-shaped electrode 3-B and the electrode plate 3-C are made of a conductive material, a part of the base material is used. The non-electrode portion 3d was formed by notching. For example, a large number of conductive portions as the electrode portion 3c were electrically connected and arranged on the surface of an insulating roller made of resin, ceramic, or the like. Charge applying means may be formed.

As described above, in each of the third and fourth embodiments, the roller-shaped electrode 3-
Since it is a structure in which B and the electrode plate 3-C are arranged to face each other, a mechanism for rotating and driving is not required, so that the cost can be reduced and the size can be reduced.

By the way, in the striped charge pattern formed in this manner, the charge wraps around from the edge of the electrode portion 3c, so that the width of the charged region tends to be wider than the width of the non-charged region. There is a high possibility that the electric field at the boundary is weakened.

Therefore, in these embodiments, the roller-shaped electrode 3-3 is formed so that the width of the charged area and the width of the non-charged area of the charge pattern formed on the transport belt 8 are substantially equal.
B and the width of the electrode portion 3c of the electrode plate 3-C are formed larger in advance than the width of the non-electrode portion 3d.

Therefore, according to the third and fourth embodiments, the boundary between the charged region and the non-charged region of the charge pattern becomes clear, and the intensity of the electric field at the boundary can be increased. By increasing the edge effect by making the arrangement pitch of the portion 3c and the non-electrode portion 3d dense, it is possible to increase the attraction force of the book document page to the transport belt 8.

As another means for generating an uneven electric field in the vicinity of the surface of the conveyor belt 8, FIG.
As shown in FIG. 3, a DC voltage may be applied to the bias roller 3-D while repeatedly turning on / off the applied voltage of the high-voltage power supply 320 composed of a DC power supply by the switch 320a.

As described above, the means for generating the non-uniform electric field is not limited to the AC voltage, but may be an alternating voltage having a rectangular, triangular, saw-like shape or the like, or a DC component may be added to the AC alternating voltage. May be superimposed, and the voltage may be biased to either positive or negative.

As described above, according to the page turning method in the present embodiment, it is not necessary to perform any special work on the paper (book original 92) to be attracted to the turning conveyance belt 8, and thus the papers are mutually separated by static electricity. There is no attraction, and it is possible to eliminate the occurrence of a page turning error of the book original 92 due to the disorder (irregularity) of the sheet edge.

Further, according to this page turning method, since the place where the attraction force is generated is near the surface of the turning and conveying belt 8, the paper contacting the surface of the turning and conveying belt 8. That is, the page turning of the book document 92 is executed.
Sufficiently large conveying force and suction force are applied, but for the second and subsequent originals located below this original,
These conveying force and suction force hardly act.

Therefore, according to this page turning method,
Since it is possible to reliably execute the turning of only one page, this method is an optimum method for turning the pages of the book document 92.

Next, the operation of the MFDS configured as described above will be described. 34 is an electrical block diagram of the MFDS, FIGS. 35, 36, and 37 are operation mode transition diagrams when reading a book document, FIGS. 35 and 38 are transition diagrams when reading a sheet document, and FIG. 39 is an operation of the MFDS. It is a flowchart which shows a mode.

First, MFDS control means will be described with reference to FIG. In FIG. 34, a main control board 310 controls commands and data between the boards, performs ON / OFF timing of each load, abnormal processing by each sensor input, mode switching, and the like, and performs the entire MFDS. You have control.

[0208] The main control board 310 is configured to perform communication with connected devices, thereby setting a communication protocol, and individually coping with each connected device.

For example, when the printer 300 is connected as its output device, its pixel density, processing speed, availability of double-sided printing, availability of backside discharge, etc. are checked, and the corresponding mode selection area is set. It is configured so that it can be determined.

Further, the main control board 310
Two interfaces to external devices are provided for each mode. Main control board 310 of the present embodiment
In this method, commands between the boards are performed by serial communication, separated from the data and control lines, and the commands can be transmitted and received even during the data output.

Here, in order to enhance the versatility, one or both of GPIB, Centronics, SCSI, etc. are set as the interface, so that a general-purpose printer or a personal computer can be used. Data can be stored in the display and storage devices such as the optical disk device, HDD, and FDD without using a special interface.

On the other hand, in FIG. 34, the turning / conveying belt drive control board 311 controls the turning / conveying belt drive motor 61. The turning unit drive control board 312 controls the turning unit drive motor 60.

[0213] Here, the turning / conveying belt drive motor 61
Detects the speed of the turn-over conveyance belt 8 by feedback of an encoder pulse generated by an encoder integrally attached to the turn-over conveyance belt drive motor 61, and performs speed position control and forward / reverse operation.

On the other hand, the turning unit drive motor 6
0 is the encoder 1 attached to the turning roller 2
The position of the turning roller 2 is detected by the feedback of the encoder pulse generated by 52, and its speed position control and forward / reverse operation are performed.

[0215] The turn-over transport belt drive control board 311 and the turn-over unit drive control board 311
Reference numerals 12 are connected to the main control board 310, respectively, and transmit and receive commands to and from the main control board 310 by serial communication.

[0216] The operation display board 313 includes a print number,
Each key input for setting a scaling ratio, the number of pages to be turned, each mode, and the like, a display corresponding to these key inputs, an error display, a turning state display, and a document setting method for each mode are displayed.

Here, in the mode display, only a mode that is possible according to the capability of the connected device (printer 300) is displayed, or an error display is performed when an impossible mode is selected.

For example, despite the fact that a printer that cannot perform duplex printing is connected, the duplex mode selection key 61
When the key 2 is input, an error display such as "The connected printer cannot be used on both sides" is displayed.

The reading of a document is started by key input of the start key 600 on the operation display board 313. Further, the operation display board 313 and the main control board 310 transmit and receive commands or data by serial communication.

The first image processing board 314 is provided with the same-size Si sensor 3 built in the first reading sensor unit 9.
15 (hereinafter referred to as a first CCD 315) and a function to generate a drive clock, and a function of turning on / off a first LED 316 also incorporated in the first reading sensor unit 9.
It has a function of taking an OFF timing and a function of amplifying the output of the first CCD 315, A / D converting the output, and performing image processing.

In the first image processing board 314, image processing such as shading correction, MTF correction, main scanning magnification, character processing, photographic processing, and negative / positive reversal are performed. The first image processing board 314 is connected to the main control board 310, and exchanges data and commands with the main control board 310.

The second image processing board 317 is provided with the first image processing board 317.
Similarly to the image processing board 314, a function of generating a drive clock for the second CCD 318 incorporated in the second reading sensor unit 14 (having the same configuration as the first reading sensor unit 9), and the second reading sensor Second LED 319 built in unit 14
Function to take ON / OFF timing of the second CCD3
It has a function of amplifying the output of the device 18 and performing A / D conversion on the output to perform image processing.

In the second image processing board 317, as in the first image processing board 314, images such as shading correction, MTF correction, main scanning magnification, character processing, photographic processing, and negative / positive reversal are used. Processing is performed.

Further, the second image processing board 317
Is connected to the main control board 310, and exchanges data and commands with the main control board 310.

As described above, the first high-voltage power supply 320
A power source for applying a high-voltage AC voltage to the first bias roller 3, which is configured to generate two kinds of frequencies for original suction and belt static elimination. This is performed by the switching signal from the two output ports.

Similarly to the first high-voltage power supply 320, the second high-voltage power supply 321 is a power supply for applying a high-voltage AC voltage to the second bias roller 11, and has two types, one for adsorbing the original and the other for removing the belt. The frequency is generated, and switching of each frequency is performed by a switching signal from two output ports of the main control board 310.

The paper feed clutch 128 controls the timing to start feeding the sheet document 200 based on a control signal from the main control board 310. Further, various sensors 25, 26, 27, 28, 29, 30, 31, 32, connected to the respective input ports of the main control board 310,
As described in the description of the mechanism, the switches 33 and 34 perform mode switching, timing detection, abnormality detection, and the like, and respectively provide detection signals to the main control board 310.

Next, the operation mode of the MFDS will be described. The operation mode of the MFDS is roughly divided into two modes. The first mode of operation of this MFDS is:
A book original reading mode for performing an automatic page turning reading operation of a book original as shown in FIG. 35, and a second operation mode is a sheet for performing automatic sheet feeding and reading operation of a sheet original as shown in FIG. This is the document reading mode.

The book original reading mode and the sheet original reading mode have further subdivided modes. That is, in the book original reading mode, as shown in FIG.
There is an automatic book size recognition mode for automatically recognizing the book size of No. 2 and a book size key input mode for specifying the book size by key input of the operation display board 313.

The automatic book size recognition mode,
In the book size key input mode, an automatic page turning reading operation for the book document 92 is performed in the spread reading mode in which the book document 92 is set with the document surface facing upward.

Further, in the book document reading mode, as a reading method, two pages of the left and right document images of the opened book document 92 are continuously read in connection with an output device (particularly, a printer). Using a two-page spread continuous reading mode in which pages of an image are printed on one sheet of transfer paper and a printer having a double-sided image forming function, the above-described two-page continuous reading mode can be used to scan two or more pages of original images. On both sides of one printed transfer sheet, a read image for the next two right and left pages of the spread book document 92 is continuously formed, and a two-sided mode of a two-page continuous reading mode and a two-sided spread mode are provided. A two-page spread reading mode in which a reading operation is performed by separating the original image of both the left and right pages of the book original 92 one page at a time. On the back side of the transfer sheet printed in the one-page spread reading mode, the printer image having the double-sided image forming function separates the original image of the left and right pages next to the opened book original 92 one page at a time. And a double-sided mode of this two-page spread reading mode.

On the other hand, in the sheet original reading mode, as shown in FIG. 38, the sheet original 200 is automatically fed while the position of the first reading sensor unit 9 or the second reading sensor unit 14 is fixed. A sheet original through mode in which an original image is read by a sheet through system while being ejected and moved;
A sheet document scanning mode in which the first reading sensor unit 9 of the page turning reading unit 1 is repeatedly reciprocated (scanned) in a state where the sheet document 200 is set (fixed) on the top to perform a reading operation of the sheet document 200; There is a sheet document manual opening / closing mode in which a document is manually set when a document cannot be set (or not set) by the automatic document feeding function (ADF).

In the sheet document through mode, a single-sided reading mode for reading an image of only one side of the sheet document 200, and a first reading sensor unit 9 and a second reading sensor unit 14 for displaying images on both sides of the sheet document 200, respectively. There is a double-sided reading mode for simultaneous reading.

Further, the double-sided reading mode is the first mode.
The reading sensor unit 9 and the second reading sensor unit 14 are arranged at the same position facing each other, and the same reading mode for reading a document image, and the first reading sensor unit 9 and the second reading sensor unit 14 are A separate position reading mode in which the document images are read by being arranged at different positions shifted from each other. The operation mode of the MFDS has been described above. Next, the switching of each mode described above will be described with reference to FIG. In FIG. 39,
When the main power supply of the MFDS is turned on, the main control board 310, the turnover conveyor belt drive control board 311, the turnover unit drive control board 312, the operation display board 313, the first image processing board 314, and the second image processing board shown in FIG. 317 are respectively reset and initialization is performed.

Thereafter, the connection of the connected device such as the printer 300 is checked, and the modes that can be supported by the connected device are displayed, while the number of prints, the magnification, the number of page turning, and each mode are set. Accept key input. During this time, the setting of the book original 92 or the sheet original 200 is performed. Here, the sheet document 20
When 0 is set on the sheet document tray 94,
The sheet document sensor 25 is turned on. Here, the MFD is opened by the open key 620 of the operation display board 313.
When the S transport unit 19 is opened and the book document 92 is set in the center reference positioning unit 24 of the document placing surface 116 in a state of being opened, the book document sensor 27 is opened.
Is turned on.

In accordance with the ON / OFF state of the sheet original sensor 25 and book original sensor 27, and the number of prints indicating the number of prints of the sheet original 200 input by the ten keys 602 of the operation display board 313,
The reading mode of the document image is switched as shown in FIG.

That is, the book document sensor 27
Is OFF, the sheet original sensor 25 is ON, and the number of prints is "1", the mode transits to the sheet original through mode. Here, the book document sensor 27 is set to O
When the FF and the sheet document sensor 25 are ON and the number of prints is “2” or more, the mode is changed to the sheet document scan mode.

Further, when both the book original sensor 27 and the sheet original sensor 25 are OFF, the mode shifts to the sheet original manual opening / closing mode. If the book document sensor 27 is ON and the sheet document sensor 25 is OFF, the mode transits to the book document reading mode.

Further, here, the book original sensor 27,
If both the sheet document sensors 25 are ON, the abnormality processing 1 (warning buzzer ON and error display)
To call the user's attention, and then transition to the book original reading mode.

If the start key 600 of the operation display board 313 has not been pressed after entering each of the selected mode subroutines, the process returns to the step of receiving a key input without executing the image reading operation. Is done.

Next, the operation of each mode described above will be described. First, the book document reading mode will be described with reference to FIG. The mode of MFDS is
In the book original reading mode, ON / OFF of the scan cutoff sensor 34 is checked.

As shown in FIG. 4, when the page-turning reading unit 1 has moved up to the upper limit position, the scan cut-off sensor 34 detects the upper limit detecting unit 76 and is turned on. The page turning reading unit 1
As described above, the book document 92 is moved up and down according to the thickness of the book document 92 placed on the document placing surface 116. The elevation of the page turning reading unit 1, that is, the book original 92
Becomes thicker, the tension of the turning and conveying belt 8 for driving the same becomes higher.

Therefore, if the tension of the turn-over transport belt 8 becomes too high, that is, if the book original 92 is too thick and the page-turning reading unit 1 rises too much,
This tension acts as a brake, and the page turning reading unit 1 cannot scan.

The scan cut-off sensor 34 detects such a level that the book turning document 1 cannot be scanned because the book document 92 is too thick. If the scan cut-off sensor 34 is ON, the user performs the abnormal process 2 (ON of the warning buzzer and an error display of "book original is too thick"), forcibly closes the transport unit 19, and The transport unit 19 is prevented from being damaged.

Here, when the thickness of the book document 92 is equal to or less than the adaptive level, the transport unit lock sensor 31 is turned on by closing the transport unit 19 by the user. At this time, if the transport unit 19 remains open, that is, if the transport unit lock sensor 31 remains OFF, abnormality processing 3 (warning buzzer ON and “Please close the transport unit”)
Is displayed).

Then, when the transport section 19 is closed,
An ON / OFF check of the book size upper limit sensor 33 is performed. Here, the book size upper limit sensor 33 is
If the book size of the book document 92 is turned on upon detection of the book size of the book document 92, that is, the book size of the book document 92 set on the document placing surface 116 cannot be read beyond the reading area of the page turning reading unit 1. Processing for abnormal book size (warning buzzer ON
Is displayed, indicating that "book document size is too large".

Then, after checking the presence or absence of key input of the number of prints, the magnification, and the number of pages to be turned, in the case of the automatic book size recognition mode, the prescan flag is set, and the automatic book size recognition mode is not set. In the case, the book size input mode is set and the operation display board 3
The reading area of the book original 92 is determined by setting a book size by performing a predetermined key input by the user 13.

Then, when the start key 600 is pressed, the transport section lock device 140 operates, and the transport section 19 is locked to the document table 18. As a result, during the page turning operation by the page turning reading unit 1, the user mistakenly opens the transport unit 19 and the book original 9
2 can be avoided.

Next, after the operation of the transport section locking device 140, if the above-described pre-scan flag is set, the pre-scan operation of the page turning reading unit 1 is performed. Here, if the prescan flag is not set, this prescan operation is skipped.

After this pre-scan operation, the apparatus stands by until the connection device (printer 300) is ready. And
When a read start signal output from the connected device (printer 300) is received at the stage when the connected device (printer 300) is ready, the page turning reading unit 1 is driven, and as described above, the book original 92 is read. The reading operation of the original image is started.

The reading operation by the page turning reading unit 1 is repeatedly performed by the number of times corresponding to the previously set number of prints. When the reading operation of the predetermined number of times is completed, the page turning operation is performed by the page turning reading unit 1, as described above, in order to perform the reading operation of the document image of the next page.

In this way, the reading operation of the original image of the book original 92 and the page turning operation are repeatedly executed according to the preset number until the last page is turned. Then, the page turning operation of the preset final turning page is completed,
When a predetermined number of reading operations on the last read page are completed, the page turning reading unit 1 does not perform the page turning operation on the final read page.
After returning to the home position [1A], the book original reading mode routine is returned.

The basic operation of the book original reading mode is as follows.
The flowchart shown in FIG. 40 is as described above. In this mode, the two-page spread continuous reading mode, the two-sided mode, the two-page spread reading mode, and the two-sided mode are shown in FIG. It becomes the input mode accepted at the time of key input setting.

Each of these input modes will be described with reference to a timing chart showing progress since the start key 600 was pressed. First, the two-page spread continuous reading mode will be described with reference to the timing chart shown in FIG.

In FIG. 41, when the start key 600 of the operation display board 313 is pressed and the reading start switch SW is turned on, the shutter (not shown) in the first reading sensor unit 9 closes. The inner surface of the shutter is a white reference plate, by which shading correction of the first reading sensor unit 9 is performed.

This shading correction is performed every time the page turning reading unit 1 rises, and is completed before the moving speed of the page turning reading unit 1 becomes constant (a timing chart of this portion is not shown). The start of the page turning reading unit 1 starts from the main control board 310 and turns to the page turning unit driving control board 3.
This is performed by a forward rotation start signal sent to the control signal 12.

In response to the forward rotation start signal, the page turning reading unit 1 starts pre-scanning. Here, after the moving speed of the page turning reading unit 1 has risen to the constant speed Vf, the above-described shutter has already been opened, and the reading of the original image of the book original 92 has been started by the first CCD 315.

By the reading at the time of the pre-scan of the page turning reading unit 1, the book original 92 which is opened is opened.
Is detected by image processing, and the output of the encoder 152 attached to the turning roller 2 at this time is counted, whereby the book size of the book original 92 set on the original placing surface 116 is recognized. Then, the reading area of the document image of the page turning reading unit 1 and the page turning area are determined.

As described above, since the MFDS is configured so that the book original 92 is set with reference to the center of the original placing surface 116, only the left end of the set book original 92 is detected. Thus, the reading area of the document image of the page turning reading unit 1 and the page turning area can be calculated.

Therefore, in this MFDS, book original 9
In detecting the book size of No. 2, the page turning reading unit 1 does not need to be pre-scanned on the entire surface, and only by short pre-scanning of the page turning reading unit 1, the book of the book document 92 placed on the document placing surface 116 can be read. The size can be detected.

As a result, during the pre-scanning of the page turning reading unit 1, the page starting reading of the book original 92 is prevented from being erroneously turned.

The book size data of book original 92 is transmitted from main control board 310 to printer 300 as an externally connected device.

On the other hand, while the book size detection is completed and the book size data is transmitted to the printer 300, the main unit control board 310 sends the turning unit drive motor 60 to the turning unit drive control board 312. A reverse rotation signal for reverse rotation is given, and the page turning reading unit 1 is returned to the home position [1A] at the speed Vr.

It is to be noted that the document mounting surface 116 of the document table 18 of the MFDS is colored with a chromatic color, such as yellow, which is rarely used as a book document. Since the area identification accuracy between the original placement surface 116 and the reading area of the original image of the book original 92 can be improved, the book size detection at the time of the pre-scan can be performed more accurately. The reliability of the size data is improved.

Here, if the original placing surface 116 is colored with an intermediate color such as gray, for example, the first CCD 315 of the first reading sensor unit 9 can be used during prescan without using a color sensor. Can be identified. After the above-described pre-scan is completed and the page turning reading unit 1 is retracted to the home position [1A], the printer 300 is ready and the printer 300 is ready.
When a transfer request signal for requesting data transfer is given to the main control board 310 from this, the turning unit drive motor 60 is normally rotated from the main control board 310 to the turning unit drive control board 312. A normal rotation signal is given, and the normal operation of the page turning reading unit 1 is started.

As described above, the page turning reading unit 1 feeds back the output of the encoder 152 of the turning roller 2 so that the book original 92 is read.
Along the original surface, the speed is controlled to the speed Vf at a constant speed, and is moved toward the end position [1C].

At this time, the first reading sensor unit 9
LED 316 has already been turned on, and the reading of the document information of the book document 92 has been started by the first CCD 315 of the first reading sensor unit 9.

Here, as shown in FIG.
In the vicinity of the binding portion (center portion) of the book document 92 set to be spread and set on the document 16, the surface of the document is warped tightly.
It becomes difficult to accurately read the document information near the binding portion. In the vicinity of the binding portion of the book manuscript 92,
Normally, document information such as characters and images is not formed.

In the MFDS, as shown in FIG. 41, near the binding portion of the book document 92, the reading SFGATE of the first CCD 315 is turned off.
Reading of the document information in the vicinity of the binding portion is masked.

As described above, the mask area at the time of initial setting of the document information is set to be +10 mm and -10 mm from the center of the center reference positioning section 24. 313
The setting value can be changed by key input of the book binding portion mask area setting key 608, and it is possible to cope with a book original with a special binding.

By the way, the first reading sensor unit 9
The reading of the document information of the book document 92 by the page turning reading unit 1 is performed by the page turning reading unit 1 at the end position [1
C], the first high-voltage power supply 320 is turned on at the frequency f1 when the page turning reading unit 1 reaches the vicinity of the center of the book document 92.
As a result, the above-described charge pattern is formed in a portion of the turning transport belt 8 which comes into contact with the right page of the book document 92.

As described above, the turning transport belt 8 is not driven when the page turning reading unit 1 is driven, and functions to press the book original 92. In this way, the page turning reading unit 1
When the drive is driven to the end position [1C] and the reading of the document information to the reading area at the right end of the book document 92 is completed, the output of the first high-voltage power supply 320 becomes O.
At the same time, the turning signal is given from the main control board 310 to the turning unit drive control board 312, and the page turning operation of the book original 92 by the page turning reading unit 1 is started.

At this time, if the document surface read by the first reading sensor unit 9 corresponds to the last read page of the book document 92 set in advance, a turn signal is output from the main control board 310. First, the page turning reading unit 1
After the reading of the final reading page is completed, the page is returned and moved to the home position [1A] without performing the above-described page turning operation.

During the page turning operation of the book original 92, the reverse operation of the page turning reading unit 1 is slow-started until the page turning sensor 29 is turned on, and the page turning reading unit 1 is electrostatically attracted onto the turning transport belt 8. The read end page (right page in FIG. 1) of the book manuscript 92 thus read is guided into the page storage unit 7.

Then, the page turning reading unit 1
The document is further returned toward the home position 1-A, and the book document 92 is turned into the page storage section 7 up to the center of the read-completed page.

In the page turning operation of the page turning reading unit 1, the first high-voltage power supply 320 is turned on at the frequency f2 in order to eliminate the charge pattern in the original adsorbing area of the sheet feeding belt 8.

The book document 9 turned over in the page storage section 7 of the page turning reading unit 1 in this manner.
The reading end page 2 is ejected from the inside of the page storage unit 7 while the page turning reading unit 1 reaches the end position [1C] after the page turning reading unit 1 has passed the center of the book document 92 and the page turning is performed. The operation is completed.

The return speed Vrm of the page turning reading unit 1 at the time of discharging the page is set so as to be higher than the speed Vf at the time of reading the document, that is, Vrm> Vf. The operation speed has been increased.

The state of the series of page turning operations is detected by the page turning sensor 29. That is, in the MFDS, the presence / absence of an abnormality is detected by checking ON / OFF of the page-turning sensor 29 at each position of the page-turning reading unit 1, and when there is an abnormality, an abnormality processing operation is executed.

In this abnormal processing operation, a warning buzzer is activated, and, for example, if the original page cannot be turned into the page storage section 7, “page cannot be turned” is displayed. If the manuscript page cannot be ejected, a message such as “Page cannot be overlapped” will be displayed.
The page is displayed on the operation display board 313, and the page turning operation is stopped.

In order to allow a user to confirm the page turning state in which the abnormality has occurred, the location of the page turning state in which the abnormality has occurred is indicated by the operation display board 313.
Will be displayed.

Hereinafter, the reading of the second and subsequent pages of the book document 92 and the page turning operation are sequentially started by a transfer request signal from the printer 300, and the same reading operation and page turning as described above are performed. The operation is repeatedly executed until a preset final read page is reached.

Here, in the timing chart of FIG. 41, when the number of placed prints of the original is “1”, that is, each read page of the book original 92 is
Each time the document is read, the case where the page turning operation of the page that has been read is executed is described. However, when the number of prints of this document is set to “2” or more, the first page is set.
When the first document reading operation by the reading sensor unit 9 is completed, a reverse signal is transmitted from the main control board 310 to the turning unit drive control board 312 instead of the turning signal, and the page turning reading unit 1 Returning to the home position [1A] at the speed Vr, the return operation is completed, and at the same time, the second document reading operation of the page turning reading unit 1 is started.

[0284] The document reading operation of the page turning reading unit 1 is repeatedly executed by the preset number of prints of the original, and when the number of operations matches the number of prints. Then, for the first time, a turning signal is transmitted from the main control board 310 to the turning unit drive control board 312, and the above-described page turning operation is executed.

The reading of the second and subsequent pages of the book document 92 and the page turning operation are sequentially started by a transfer request signal from the printer 300, and the same number of times as the number of prints described above is performed. The reading operation and the page turning operation are repeatedly executed until a preset final reading page is reached.

In the case where the read original image is set to be enlarged by the print magnification key 614, the scan speed Vf of the first reading sensor unit 9 is changed to the magnification. By changing the speed to the corresponding speed, the original image is scaled in the sub-scanning direction, and the first image processing board 314 is scaled in the main scanning direction.

On the other hand, in the duplex mode of the two-page spread continuous reading mode as described above, the printer 30
0 differs from the printer 300 in that the transmission timing of the transfer request signal from the printer 300 to the main control board 310 is slightly delayed in order to perform double-sided printing of the document image. The same operation as in the reading mode is performed.

Next, a two-page spread reading mode will be described with reference to FIG. This spread 1
The page separation reading mode is a mode in which the left page and the right page of the spread book original 92 are separately read to form an image, and these images are printed on separate transfer paper, (A double-sided mode of the double-page spread reading mode).

In this mode, one of the operation of reading the book document 92 from the left page and the operation of reading the book page 92 from the right page is performed by the operation display board 3.
13 can be selected and set by key input of the 13 reading start page selection key 603. FIG. 42 shows a timing chart when reading is started from the left page facing the book document 92.

The operation in the two-page spread reading mode is almost the same as the operation in the two-sided mode in the two-page continuous reading mode described above. Is that the transfer request signal from the printer 300 to the main control board 310 is transmitted for each page, so that the page turning reading unit 1 can move the book original 92 from the left page to the right page. It is moved (scanned) at high speed.

FIG. 43 shows a timing chart in the case where reading is started from the right page of the book original 92 in the double-page spread reading mode.

As is clear from this timing chart, when reading is started from the right page of book document 92, the moving speed of page turning reading unit 1 with respect to the left page where book document 92 is not read is set. Are programmed to be faster than the scanning speed Vf of the first reading sensor unit 9 for the right page, thereby shortening the document reading time, that is, improving the performance of the reading function.

In this one-page spread reading mode, the read skip page setting key 61 is set.
If a page to be skipped (skipped) without scanning is set according to 8, the page turning reading unit 1 for the read skip page is
It is programmed to move at a speed higher than the scan speed Vf of the first reading sensor unit 9 at the time of reading, and immediately execute the turning operation of the reading skip page (a timing chart is not shown). ).

By the way, in general, FIGS.
As described above, there are few printers that can continuously request a transfer request signal from the printer 300 to the main control board 310 in a normal state.

Therefore, when using such a general printer to execute the double-page spread reading mode, two transfer sheets are fed so as to be overlapped on the printer side. This can be realized by:

Here, if a certain distance must be provided between these two transfer papers due to the resist between the transfer paper and the photosensitive drum, the book original 92 must be provided. The image data on the left page of the book original 92 is passed to the printer as it is, and the image data on the right page of the book original 92 is delayed through the delay memory by a time corresponding to the distance between the transfer sheets to the printer. Can be realized.

FIG. 4 is a block diagram showing an example of the latter case.
4 and its timing chart is shown in FIG.
In this example, the image data output to the printer through the delay memory is delayed by the time Td with respect to the image data output directly to the printer through the switch by the gates A and B inside the main control board 310. It is configured to be.

Next, the duplex mode in the two-page spread reading mode will be described. First, a description will be given of a case in which image data of two pages on the left and right sides of a spread book original 92 are printed on the front and back of one transfer sheet.

In this case, since the transfer paper needs to be reversely conveyed on the printer 300 side, the transfer of the transfer paper from the end of the printing of the image data of the left page to the start of the printing of the image data of the right page is completed. Takes some time.

For this reason, in this mode, when the page turning reading unit 1 has finished reading the left page of the book original 92 and reaches the vicinity of the binding portion, the driving of the page turning reading unit 1 is temporarily stopped. You.

Then, the printing of the left page image on the printer 300 side and the reverse conveyance of the transfer paper are completed,
When a transfer request signal is output from the printer 300 to the main control board 310, the stopped page turning reading unit 1 is driven again at the predetermined scanning speed Vf,
The right page of the book document 92 is read, and the image data of the right page is transferred to the printer 300.
On the back side of the transfer paper with the left page image printed on the front side,
This right page image is printed and double-sided printing is performed. FIG. 46 shows a timing chart at this time.

Next, in the two-page spread reading mode, a duplex mode in which an image is formed in such a manner that the relationship between the front and back of the printed transfer paper and the front and back of the original surface of the book original 92 are matched. . In this mode, when reading from the left page of the book document 92 is started, as described above, the printer 300 is instructed to continuously feed two sheets, and the transfer of the printed left page image is performed. While the paper is discharged as it is, the transfer paper on which the right page image is printed is reversed and conveyed, and preparation is made for printing the left page image of the next page of the book document 92 on the back surface.

In the meantime, on the MFDS side, the page turning operation of the read original page is performed. When the page turning operation on the MFDS side is completed, a reading operation for the next page is executed.
The read left page image is printed and discharged on the back surface of the transfer paper on which the right page image is printed and conveyed reversely.

The right page image read at this time is printed on a newly fed transfer sheet. This transfer sheet is reversely conveyed similarly to the previous transfer sheet, and preparation for printing the left page image of the next page of the book document 92 on the back surface is performed. By repeating such a series of operations, a transfer sheet on which a document image having the same page configuration as the book document 92 is printed can be obtained. The above is an example of the operation in the book document reading mode.

Here, setting of a book original in the double-page spread reading mode will be described. In the connection device check of FIG. 34, if the printer 300 can discharge the back side, the following display is performed.

That is, "If the book document is written horizontally (open left), open the top page to be read and set it upward.""If the book document is vertically written (open right), read the first page. Please open the book and set it upside down. "

On the other hand, in the connected device check in FIG. 34, if the printer 300 can discharge only the front side, the following display is performed.

That is, "If the book document is written horizontally (open left), open the last page to be read and set it upside down.""If the book document is vertically written (open right), Open the page and set it face up. ”Each of the setting methods for the horizontal writing and vertical writing of the book document is instructed.

In the MFDS, by setting the book original 92 in accordance with the above-described instruction, the pages of the transfer paper to be discharged can be aligned regardless of the function of the printer 300 connected thereto. In addition, the method of inputting the number of pages turned in this MFDS includes:
There are two types of input methods by key input of the operation display board 313, and the user can select any one of these input methods according to his / her preference. One of the input methods is a reading total page setting key 606.
Is used to set the total number of pages to be read. As another input method, the first page to be read and the last page to be read by using the read start page setting key 604 and the read last page setting key 605 are used. How to enter a page.

The input of the number of page turns in the MFDS may be performed by any of the above methods as long as the number of page turns of the page turning reading unit 1 can be accurately calculated. Hereinafter, a method of calculating the number of page turning times in each of the above methods will be described. First, the case where the total number of pages to be read is input will be described.

Here, assuming that the total number of pages to be read is X and the number of turns is M, when reading from the left page, (X−2) / 2 = M + remainder When reading from the right page Is (X-1) / 2 = M + remainder. By calculating the value of M from these equations, the number of turns can be obtained.

Next, a case where the first page to be read and the last page are input will be described. Here, assuming that the first page to be read is Y, the last page is Z, and the total number of pages to be read is X, X = Z−Y + 1..., And this equation is substituted into the above equations and equations. Thus, the number of turns M can be calculated.

As described above, this MFDS is configured so that a single device can selectively read a book document and a sheet document and form an image thereof. The image reading mode for the book document is as described above. Hereinafter, the image reading mode for the sheet document in the MFDS will be described.

As shown in FIG. 38, the sheet original reading mode includes a sheet original through mode, a sheet original scanning mode, and a sheet original manual opening / closing mode.

First, the sheet original through mode will be described. The sheet document through mode includes a one-sided document reading mode and a two-sided document reading mode. The two-sided document reading mode includes a same-position reading mode and a different-position reading mode.

The selection of these modes is performed as shown in FIG. First, in the one-sided original reading mode, as shown in FIGS.
4, when the start key 600 is pressed in this state, first, the power supply of the turning / conveying belt drive motor 61 is turned on, the driving roller 12 is rotated, and the turning / conveying belt 8 is turned on. Is rotated.

At this time, if there is no abnormality in each sensor and each input data, the paper feed clutch 128 is turned on, and the second paper feed pulley 13 attached to the first belt support roller 97 is turned on.
0 through a paper feed drive belt 127 to feed rollers 96
Is rotated, and the sheet original 200 is conveyed toward the paper feed separation pad 95.

The sheet separation pad 95 separates only the lowest one sheet original 200 from other sheet originals, and the first transport guide 108 and the second transport guide 10
While being guided by 9, the sheet is conveyed to a position where it comes into contact with the turnover conveyance belt 8.

Here, the second transport guide 109 includes:
A paper feed sensor 26 is attached.
6, the transport timing of the sheet document 200 is set so that the sheet feeding clutch 128 is turned off after the rear end of the sheet document 200 is detected.

On the other hand, along with the rotation of the turn-over transport belt 8, an AC high voltage is applied to the second bias roller 11 from an AC power source, and a stripe-like charge pattern is formed on the turn-over transport belt 8. As a result, the fed sheet document 200 is sucked and conveyed by the turnover conveyance belt 8. At this time, the linear speed of the turn-up conveyance belt 8 is changed to 360 mm / s at the time of the same magnification, and is changed according to the set magnification at the time of the magnification change.

On the other hand, in this mode, the page turning reading unit 1 is located at the end position [1C], and the sheet original 2 conveyed by the turning conveying belt 8 by the first reading sensor unit 9.
00 are sequentially read (the pixel density is 400
dpi).

Then, the sheet original 200 having been read is fed to the third conveyance guide 110 and the fourth opposing roller 1.
03, fifth opposing roller 104, sixth opposing roller 105,
The sheet is nipped and conveyed by the seventh opposing roller 106, and is discharged onto the discharge tray 23 from the discharge port 117.

A paper discharge sensor 28 is attached to the third conveyance guide 110 near the paper discharge port 117, and the paper discharge jam of the discharged sheet original 200 is detected. When the reading operation of the first sheet document 200 is completed, next, at a predetermined paper feed timing,
The paper feed clutch 128 is turned on again, the second sheet document 200 is fed, and the same reading operation as described above is performed.

In this manner, the sheet documents 200 set in the sheet document tray 94 are sequentially fed and read, the last (topmost) sheet document 200 is fed, and the sheet document sensor 25 is turned off. Then, the power supply of the second bias roller 11 is switched to the high frequency AC voltage,
After the charge pattern of the turnover conveying belt 8 is discharged and the final sheet document 200 is discharged, all the operations of the MFDS are stopped. The above reading operation is performed by using this M
This is an operation in the case where a printer having a backside discharge function is connected to the FDS, and thereby the sheet original 200 and the printed transfer paper are aligned and discharged.

If the printer connected to the MFDS has only the front-side discharge function, the sheet original 200 is set upward on the sheet original tray 94, and the second reading sensor unit is set. By 14,
By reading the sheet document 200, the same as in the case of the printer having the above-described backside discharge function,
The sheet original 200 and the printed transfer paper are aligned and discharged. The other operations when the printer having the front surface discharge function is connected are the same as those when the printer having the back surface discharge function is connected.

Next, the two-sided original reading mode in the sheet original through mode will be described. In the double-sided document reading mode, a horizontally written sheet document is set on the sheet document tray 94 with the leading edge of the document facing downward.

[0327] This is because the first reading sensor unit 9 and the second reading sensor unit 14 do not have a memory, so that only mirror inversion in the main scanning direction can be used.

First, as shown in FIGS. 50 and 51, the basic operation of the same position reading mode in the two-sided original reading mode is the same as that in the one-sided original reading mode. When the reading unit 1 is located at the home position [1A], and the document table 18 is at the same position as the position of the second reading sensor unit 14, the reading of the document information on both the front and back sides of the sheet document 200 is performed. First reading sensor unit 9 and second reading sensor unit 14
Are executed in parallel at the same time.

On the other hand, the basic operation of the separate position reading mode in the double-sided document reading mode is as shown in FIG.
As shown in FIG. 53, the operation is the same as in the one-sided original reading mode, but in this mode, the page turning reading unit 1 is located at the end position [1C].

As is clear here, in this separate position reading mode, the first reading sensor unit 9 and the second reading sensor unit
Since the distance between the reading position and the reading sensor unit 14 is larger than the length of the maximum size document, the sheet document 200 read by the first reading sensor unit 9 and the second reading sensor unit 14 is read.
Are output in chronological order.

Next, the sheet scan mode in the sheet original reading mode will be described. In this sheet scan mode, as shown in FIGS. 54 and 55, the sheet document 200 is set upward on the sheet document tray 94, and in this state, when the start key 600 is pressed, first, the turning-over transport belt The power supply of the drive motor 61 is turned on, the drive roller 12 is rotated, and the turn-over transport belt 8 is rotated.

At this time, if there is no abnormality in each sensor and each input data, the paper feed clutch 128 is turned on, and the second paper feed pulley 13 attached to the first belt support roller 97 is turned on.
0 through a paper feed drive belt 127 to feed rollers 96
Is rotated, and the sheet original 200 is conveyed toward the paper feed separation pad 95.

[0333] The sheet separation pad 95 separates only the lowest one sheet original 200 from other sheet originals.
While being guided by 9, the sheet is conveyed to a position where it comes into contact with the turnover conveyance belt 8.

Here, the second transport guide 109 includes:
A paper feed sensor 26 is attached.
6, the transport timing of the sheet document 200 is set so that the sheet feeding clutch 128 is turned off after the rear end of the sheet document 200 is detected.

On the other hand, along with the rotation of the turning and conveying belt 8, an AC high voltage is applied to the second bias roller 11 from an AC power source, and a striped charge pattern is formed on the turning and conveying belt 8.

As a result, the fed sheet original 200 is sucked and conveyed by the turn-over conveyance belt 8. At this time, the linear speed of the turning conveyance belt 8 is 360
mm / s, and when the leading end of the sheet document 200 reaches the home position [1A], the turning of the turn-over conveyance belt 8 is stopped.

On the other hand, in this mode, the page turning reading unit 1 is located at the home position [1A], and after the turning of the turning conveyance belt 8 is stopped, the page turning reading unit 1 is turned on. The end position [1
C], the document information of the sheet document 200 conveyed by the turn-over conveyance belt 8 is sequentially read by the first reading sensor unit 9 (the pixel density is 400 dpi).

At the time of reading the document information, a high-frequency AC voltage is applied to the first bias roller 3 by the first high-voltage power supply 320, and the charge pattern formed on the turn-over conveyance belt 8 is eliminated. As a result, the sheet document 200 when the page turning reading unit 1 is returned
Is prevented from entering the page turning reading unit 1. The page turning reading unit 1 that has finished reading the sheet document 200 in this manner is returned to its home position [1A].

When the page turning reading unit 1 returns, the first reading sensor unit 9 is retracted upward from the document surface of the sheet document 200, and
When a high-voltage AC voltage is applied to the first bias roller 3 from the first high-voltage power supply 320, a striped charge pattern is formed on the turn-over conveyance belt 8.
It is attracted to the turn-over transport belt 8 and fixed.

After the above-described operation is repeated the set number of times, the turning-up / transport belt drive motor 61
Is turned on, the turn-over conveyance belt 8 is rotated, and the sheet document 200 that has been read is discharged onto the discharge tray 23 from the discharge port 117.

A paper discharge sensor 28 is attached to the third transport guide 110 near the paper discharge port 117, and the paper discharge jam of the discharged sheet original 200 is detected. Then, when the reading operation of the first sheet document 200 is completed, next, at a predetermined sheet feeding timing, the sheet feeding clutch 128 is turned on again, and the second sheet document 200 is fed. The same reading operation as described above is performed.

In this manner, the sheet originals 200 set on the sheet original tray 94 are sequentially fed and read, and the last (uppermost) sheet original 200 is fed, and the sheet original sensor 25 is turned off. Then, the power supply of the second bias roller 11 is switched to the high-frequency AC voltage of the second high-voltage power supply 321, the charge pattern of the turn-over transport belt 8 is eliminated, and after the final sheet original 200 is discharged, the MFDS All operations are stopped.

Next, the manual opening / closing mode of the sheet original in the sheet original through mode will be described. The operation of the sheet original manual opening / closing mode is shown in FIGS.
As shown in FIG. 7, in the operation of the above-described sheet document scanning mode, the sheet conveying means and the respective power sources for sheet suction are turned off, and the sheet document is manually replaced by the operator.

The operation control of the page turning reading unit 1 in the MFDS will be described below. Fig. 58
The page turning reading unit 1 in this MFDS
3 shows an operation control circuit.

The operation control circuit controls the reciprocating drive of the page turning reading unit 1 and the speed thereof, and is incorporated in the turning unit drive control board 312. In FIG. 58, a microcomputer 52
0 (hereinafter simply referred to as a microcomputer) also performs the mode control and the sequence control of the MFDS (details are not shown).

As such a microcomputer 520, for example, a programmable interval timer 521 (hereinafter simply referred to as a timer) based on μPD71054G is connected. The timer 521 controls the turning unit drive motor 60 (DC motor) under the control of the microcomputer 520.
For outputting a pulse width modulated PWM output for performing the speed control.

The PWM control cycle is 50 (μsec)
This is controlled with a resolution of 400 bits. The timer 521 is connected to an 8 MHz oscillator 522 and is configured to receive a clock signal.
The turning unit drive motor 60 is provided with a microcomputer 52.
0 is connected via driving transistors Q1 to Q4.

That is, transistors Q1 and Q4 are ON
With the transistors Q2 and Q3 turned off, a current that rotates clockwise (CW) is supplied to the turning unit drive motor 60, and the transistors Q2 and Q3 are turned on.
With the transistors Q1 and Q4 turned off, a current that rotates in the counterclockwise direction (CCW) is supplied to the turning unit drive motor 60.

Here, the turning unit drive motor 60
Is turned clockwise (CW), the page-turning reading unit 1 is moved forward, and the page-turning unit driving motor 60
However, when turned counterclockwise (CCW), the page turning reading unit 1 is set to return.

The rotation direction of the turning unit drive motor 60 is controlled by the CW signal and the CCW signal output from the ports PF6 and PF7 of the microcomputer 520, respectively. Further, the turning roller 2 is directly connected to an encoder 152 for generating a pulse according to the rotation thereof.

Here, the encoder 152 generates two pulse signals having different phases according to the amount of rotation of the turning unit drive motor 60 and the direction of rotation. One is an A-phase encoder pulse ENCA, and the other is a B-phase encoder pulse ENCB. The A-phase encoder pulse ENCA is input to the counter input terminal C1 of the microcomputer 520 via the frequency division multiplexer 524.

Thus, the microcomputer 520 sets the pulse interval of the A-phase encoder pulse ENCA to
(Measured by an oscillation frequency of 10 MHz of the oscillator 525 of the microcomputer 520).

The input signal to the counter input terminal C1 is an interrupt input. During the processing of the interrupt program, the value of the measurement data of the pulse interval of the A-phase encoder pulse ENCA is read and based on this data. Calculation of the number of revolutions of the turning unit drive motor 60, calculation of the motor control amount by proportional / integral control calculation, and
Output (data loading to the timer 521) and the like are performed.

Specifically, the A-phase encoder pulse ENC
The output of A is divided according to the target speed.
As a result, an interrupt input signal is given to the counter input terminal C1 by dividing the frequency by 1, 2, 4, and 8.

Here, at the time of frequency division by one, the first reading sensor unit 9 is moved by 0.116 mm by one pulse of the encoder 152, and the speed is calculated inside the microcomputer 520 by the interruption interval. Then, an output timer value is determined by a proportional / integral calculation process based on the calculated speed data.

The A-phase encoder pulse ENCA and the B-phase encoder pulse ENCB are input to the input terminal PC3 of the microcomputer 520 via the flip-flop 526, and are used to detect the phase difference between them, and The rotation direction of the turning unit drive motor 60 is determined by the phase difference.

That is, when the state of the B-phase encoder pulse ENCB at the time of the rise of the A-phase encoder pulse ENCA is input to the port of the microcomputer 520, the rotation direction of the turning unit drive motor 60 is determined.

Next, the speed control of the turning unit drive motor 60 will be described. The speed control of the turning unit drive motor 60 is performed by PWM control. First, when the page turning reading unit 1 scans the scanner, that is, when the turning unit driving motor 60 rotates clockwise, the transistor Q1 is turned on, while the PWM output from the timer 521 outputs the transistor Q4 via the gate 527. Is turned ON / OFF to generate a potential difference between both terminals of the turning unit drive motor 60,
The turning unit drive motor 60 is rotated at a speed corresponding to the duty ratio of the PWM signal.

On the other hand, when the page turning reading unit 1 returns, the transistor Q3 is turned off
N, and the transistor Q2 is turned on by the PWM output from the timer 521 through the gate circuit 528.
By turning N / OFF, a reverse potential difference is generated between both terminals of the turning unit drive motor 60, and the turning unit drive motor 60 is rotated at a speed corresponding to the duty ratio of the PWM signal.

[0360] A copyright management support system in the MFDS configured as described above will be described below. First, the internal configuration and functions of the MFDS main control board 310 will be described with reference to FIG.

In FIG. 59, a one-chip microcomputer 330 (hereinafter simply referred to as a microcomputer) has a configuration including an internal RAM, an internal ROM, an I / O, a timer, an external / internal interrupt, a serial interface, and the like. In addition, an external R
External devices such as the OM 331 and the external RAM 332 can be accessed.

The external ROM 331 is a ROM inside the microcomputer.
The operation program is incorporated in the same manner as the above. External RA
The M332 can store setting data and the like to an external device, and is backed up by a battery backup battery 334 so that the memory can be stored even when the apparatus is turned off.

Serial interfaces 337 and 33
8, 339 are connected to an external unit, an external device, and the like by serial communication, and can transmit and receive commands and data to and from a one-chip microcomputer. The ID card reading device 340 reads magnetic data or the like incorporated in a card issued to an individual or an organization, encodes the data, and inputs the encoded data to the microcomputer via the serial interface 338. From this data, it is possible to determine who copied the book document.

The bar code reading device 341 is a book document identification device for identifying the type of book document based on a bar code pattern attached or printed on a book document such as a book or magazine.

In this embodiment, the bar code reader 341 is shown as the book document identification device. However, a device for identifying a magnetic pattern attached to a book document may be used.

The bar code reading device 341 is composed of a bar code scanner and bar code data. In this example, the barcode scanner will be described as a type using a CCD, but the barcode scanner may be a pen type using a reflected light sensor or a laser scan type scanner.

In the bar code data read by the CCD scanner, the bar code signal is converted into an ASCII code, and the main control board 3 is read out by serial communication.
10 is transmitted. Operation display board 3
Reference numeral 13 performs mode setting and display, operation procedure display, error display, and the like.

The memory controller 342 operates the image processing board 31 based on a command from the one-chip microcomputer 330.
4 to directly output to the printer or output to the image memory board 343, the main scanning from the image processing board 314 or the printer 300,
Switching of the sub-scanning synchronization signal, gate signal, and clock signal is performed.

The memory controller 342 can generate a synchronization signal (LSYNC) for main scanning and sub-scanning, a gate signal (FGATE), and a clock signal so that the output from the image memory board 343 can be controlled. Further, the memory controller 342 controls the character generator 344.

[0370] The character generator 344 has data of character fonts and graphic patterns in an internal ROM and can be output. The output timing of the character generator 344 is instructed by the memory controller 342, and the output thereof is output to an OR circuit 345.
Is output to the printer 300 through

The OR circuit 345 is connected to the memory controller 3
The image data output from the image data and the pattern data output from the character generator 344 can be combined. The image memory board 343 has two pages of memory for the maximum document reading size as standard.

The image memory board 343 has
It is configured such that a memory can be added for increasing the number of bits per dot of the dot multilevel output and for recovery in the event of a printer jam.

Next, an operation mode according to the present invention will be described. As described above, the operation mode of the MFDS is as follows.
The mode is broadly divided into two modes, one is a book document reading mode for performing a page turning reading operation of a book document, and the other is a sheet document reading mode (ADF mode and pressure plate mode) for reading a sheet document. (FIG. 38).

According to the present invention, an ID card recognition mode and a barcode recognition mode can be set in the book original reading mode so that the copyright usage fee can be managed (FIG. 36).

Here, ON / OFF of the setting of each mode is as follows.
In order to prevent the user from easily changing the setting, the setting is made by inputting an encryption key from the operation display board 313, or a program RO in which each mode is built in
M may be used. The other subdivided modes are as described with reference to FIG.

Next, switching of individual modes by key input from the operation unit and automatic mode switching by sensor input will be described. In FIG. 60, when the main power supply of the MFDS is turned on, the main control board 310, the operation display board 313, the turning unit drive control board 312, and the turning transport belt drive control board 3 shown in FIG.
11. The image processing boards 314 and 317 are reset, and initialization is performed.

In this initial setting, the automatic selection mode shown in FIG. 35 is set. In this automatic selection mode, a mode is automatically selected according to each sensor input. After that, the connection of the output device such as the printer 300 is checked, and the mode that can be supported by the connection device such as the printer is displayed, and the key input of the number of copies, the scaling, the number of pages turned, and the mode is accepted.

Here, when the automatic selection mode is turned off, the mode selection can be set by key input from the operation display board 313. That is, when a mode is designated by the mode selection key of the operation display board 313, the operation display board 3
The mode selection code is transmitted by the serial communication from 13, and the mode selection flag is thereby set.

Then, a branch (subroutine call) to each mode is performed by checking the mode selection flag. On the other hand, when the automatic selection mode is on, the mode is branched as shown below according to each sensor input and setting conditions depending on the setting of a book document or a sheet document.

When the sheet document is placed on the sheet document tray 94, the sheet document sensor 25 is turned on. Further, the transport unit 19 is opened and the center position reference determining unit 24 of the document table 18 is opened.
Then, when the book document is set in a state of being spread, the book document sensor 27 is turned on. These two sensors 2
The modes are switched according to 5, 27 as shown in FIG.

That is, the book original sensor 27 is turned off,
When the sheet original sensor 25 is on and the number of placed sheets is one, the mode goes to the sheet original through mode (ADF mode). When the number of placed sheets is two or more, the mode goes to the sheet original scan mode (ADF mode). , 27 are both switched to the manual sheet open / close mode (press plate mode).

If the book original sensor 27 is on and the sheet original sensor 25 is off, the process goes to the book original reading mode. If both the sensors 25 and 27 are on, the above processing 1 is executed. After an error message is displayed to alert the user, the mode is changed to the book document reading mode.

Here, the book original reading mode is a mode in which copyright use management can be performed, while the sheet original reading mode (ADF mode and pressure plate mode) can perform a normal copying operation.

That is, in the case of only the book original mode and the pressure plate mode (no ADF mode), the center positioning section 2
The mode is determined by observing the state of the book original sensor 27 of No. 4; (1) when the book original sensor 27 is on and in the book original mode, the image of the image reading sensor unit 9 for reading the image of the book original; The memory controller 3 that outputs the number of reading scans or image information read by the reading sensor unit 9
The number of times of image information output of 42 is counted by the counting means. (2) When the book document sensor 27 is off and in the pressure plate mode, the number of times of image reading scanning of the image reading sensor unit 9 by the counting means is:
Alternatively, the counting of the number of times of outputting the image information by the memory controller 342 is not executed.

After entering the mode subroutine, if the reading start key is not pressed,
It returns without executing the process.

The mode operation of each mode is as described above.

Next, the book original reading mode according to the present invention will be described with reference to the flowcharts of FIGS. 61 to 63, when the book document reading mode is entered, the ON / OFF of the belt tension sensor 34 is checked.

This detects a level at which the turn-reading unit 1 cannot scan the original surface because the book original to be placed is too thick. When the belt tension sensor 34 is turned on, the abnormality process 2 is executed, and the warning buzzer is turned on and "the book is too thick" so that the user does not forcibly close the transport unit 19 to damage the apparatus. Is displayed.

Here, if the thickness of the book document is equal to or less than the adaptive level, the transport unit 19 is closed by the user, and the transport unit lock sensor 31 is turned on. At this time, if the transport unit 19 remains open, the abnormality process 3 is executed, the warning buzzer is turned on, and an error message “Please close the transport unit” is displayed.

When the transport unit 19 is closed in this manner, the on / off check of the book size upper limit detection sensor 33 is checked. When this sensor is on, the book size becomes larger than the reading area. Abnormal process 4 is executed, the warning buzzer is turned on, and an error message “Book size is too large” is displayed.

If the book size upper limit detection sensor 33 is off, it is determined that the number of sheets, the variable magnification, and the number of pages are already set, and it is further determined that the ID card recognition mode is set. Then, the subroutine is called.

The ID card recognition mode is operated as shown in the flowchart of FIG. When the ID card recognition mode is executed, first, as shown in FIG. 64, whether or not the ID card reader 340 is connected is determined by exchanging a break signal via the serial interface 338 (FIG. 59). Is checked in.

If the ID card reader 340 is not connected, a command is sent via the serial interface 337 to the operation display board 313 so as to display an instruction on the connection method, and the NG flag is set. Then, the process returns to the book document reading mode.

On the other hand, when the ID card reader 340 is connected, a command is transmitted to the operation display board 313 to display the operation method of the ID card reader 340.

Next, a command is exchanged on serial communication as to whether the individual code has been read from the ID card. As a result, if the individual code has not been read yet, the NG flag is set and the routine returns. Here, when it is determined that the individual code is being read, it is determined whether or not the ID code permits copying of the book document. If the ID code does not permit copying of the book document, a command is transmitted to the operation display board 313 so as to display an error such as "copying of the book document is not permitted".

On the other hand, when the ID code permits the copying of the book document, the address of the counter on the external RAM 332 set for each ID code is selected.
Return to the branch source routine. This external RAM 33
The counter above 2 has a function of counting the number of copies of the book document for each ID code.

After the return in the ID card recognition mode is completed, it is determined whether the NG flag is set or reset.
Here, if the NG flag is set, NG
After resetting the flag, the book document reading mode is returned and the processing is terminated.

On the other hand, if the NG flag is not set, it is determined whether the mode is the bar code recognition mode and the subroutine is called. At this time, if the mode is not the barcode recognition mode, the process proceeds to the next mode.

[Explanation Corresponding to Claim 1] FIG. 65 is a flowchart of the barcode recognition mode.

In this subroutine, first, a connection check of the bar code reader 341 is performed.

If the bar code reader 341 is not connected, a command for displaying an error is transmitted to the operation display board 313, the NG flag is set, and the routine returns.

On the other hand, if there is no abnormality, the LED inside the bar code scanner is turned on, and the bar code attached or printed on the book document is read by the CCD inside the bar code scanner.

By setting the reading position of this bar code scanner near the book document set reference position, the bar code pattern of the spine of the book document as shown in FIG. 34
1c can be read. Therefore, in the embodiment of the present invention, as shown in FIGS.
The bar code scanner 341a of the bar code reading device 341 is attached to the book document set reference position side of the center reference positioning portion 24 of the document table 18 supporting the center binding portion (spin cover portion) of No. 2.

Barcode Scanner 34 Other Than This Embodiment
The attachment position of 1a may be near the original set reference position of the front or back cover of the book original within the minimum book original size that can be turned over. FIG.
The page turning reading unit 1 shown in FIG. 8 includes a page storage unit 7 for storing the document page turned by the turning roller 2 and a reading sensor unit 9 for taking the document page. Are arranged in parallel in the original scanning direction so as to conform to FIG.

The data of the bar code pattern 341c read by the bar code scanner 341a is stored in the bar code decoder 34 in the bar code reader 341.
1b, converted to ASCII code, and sent to the one-chip microcomputer 330 via the serial interface 339 of the main control board 310.

If the bar code pattern 341c cannot be read, an error message "bar code pattern cannot be read" is displayed, the NG flag is set, and the routine returns. When the barcode pattern 341c is read, it is determined whether or not the barcode pattern is permitted to be copied. If copying is not permitted, an error message "This book document (copying of barcode pattern is not permitted)" is displayed on the operation display board 313.

On the other hand, if copying is permitted, the address value of the counter on the external RAM 332 set for each read code is selected and the routine returns. The counter on the external RAM 332 is a counter determined for each barcode pattern, that is, weighted according to, for example, a publisher, a writer, or a price.

After returning to the book original reading mode, the NG flag is determined. If the NG flag is set, the NG flag is reset and the process returns. If the NG flag is reset, the mode shifts to the next automatic book size recognition mode.

In the case of the automatic book size recognition mode,
If the pre-scan flag is set, otherwise the book document size input mode is set and the operation display board 313 is set.
Further key input is performed to set the size of the book document and determine the reading area.

Here, when the reading start key is pressed, the above-described transport section lock mechanism operates.
This is to prevent the user from accidentally opening the transport unit 19 during the page turning operation of the book original and damaging the original page. If the prescan flag is set after the operation of the transport lock mechanism,
The pre-scan operation is performed, and if the pre-scan flag is not set, the process skips.

[0411] After the pre-scan operation or after the skip, the apparatus stands by until the connected device (printer 300) is ready. Then, when the preparation is completed, the reading operation of the book document is started. After the end of the reading operation, a count operation processing subroutine for each ID code / bar code is called.

In this ID code / bar code count operation processing subroutine, first, as shown in FIG.
The state of the center binding unit sensor 346 is determined. FIG.
As shown at 0, the central binding unit 347 is used when copying a stapled original or the like without copyright.

That is, the center binding unit 347
Is configured to be detachable from the apparatus main body so that the stapled original can be set in the center reference positioning portion 24 of the original table 18 while being clipped (nipped). The center binding unit 347 is connected to the document table 18.
Is set in the center reference positioning section 24, the center binding unit sensor 346 is turned on by the detection piece 347a formed at the end thereof, and it is determined that the document set on the document table 18 is not a book document. Is done.

When the center binding unit sensor 346 is on, the above-described counting operation is not required.
Returned immediately. Here, when the center binding unit sensor 346 is off, the counter value selected for each code in the ID card recognition processing (FIG. 64) and the bar code recognition processing (FIG. 65) called in the subroutine is loaded and counted up. Further, the data is stored in the original address value. External RAM 332 used at this time
Is backed up by a battery backup battery 334 even when the power is turned off.

The count-up at this time is counted so as to correspond to the number of read pages of the book document. That is, if you read a book manuscript two pages at a time,
It is counted up by two count-ups.

The center binding unit sensor 34
For example, a light-transmitting sensor is used for the bar code 6. For example, a unique bar code pattern is pasted or printed on the back side of the central binding unit 347, and the bar code pattern that prevents fraud and reduces costs is replaced with a bar code pattern. Scanner 34
It may be distinguished from a book original by reading in 1a.

In this way, it is possible to determine how many pages have been copied for each book document based on the count value. Then, the above-described reading operation is repeated for a preset number of sheets, a page turning operation is performed, and this operation is repeated until the turning operation of the last page is completed. Thus, after the page turning reading operation of the last page of the book document is executed, the book document reading mode is returned and the operation is completed.

On the other hand, the data counted for each ID code and each bar code described above can be output to the display unit at any time by key input from the operation unit. When the printer 300 is connected to the MFDS, the one-chip microcomputer 330 of the main control board 310 calls the counter value stored in the external RAM 332 for each code by a key input from the operation display board 313. And the memory controller 34
The count data can be output together with the output of images such as a list and a graph, by the character generator 344 controlled by the synchronization signal generated by the control unit 2.

[0419] Thus, for example, a copyright fee can be accurately collected for each individual or group based on the ID code counter value. Also, the operation display board 31
By setting the price for copying one page in advance by key input from 3, it is also possible to calculate the total amount at the end of copying based on the above counter value.

Further, if the price per page of the manuscript is input in advance based on the value counted for each book manuscript by the barcode pattern 341c, the amount of payment for each manuscript or publisher can be listed by period. To the printer 300.

[0421] These outputs can be output at any time by key input of the operation display board, but they may be output periodically by a timer function of a microcomputer in the main control board.
Automatically output weekly and monthly to save the trouble of key input.

If the copy paper jams on the printer 300 connected to the MFDS, the MFDS main control board 3
The jam occurrence code is transmitted to 10 by serial communication.

As a result, the MFDS performs a printer jam recovery operation.

As part of this recovery operation, the read operation is completed as shown in FIG. 63 and FIG.
If the ID code / bar code count operation has been completed, a minus count is performed. Also, here, ID
If the code / barcode count operation has not been completed, the count value at this time is held as it is.

On the other hand, in the present embodiment, an example is shown in which the count operation processing subroutine for each ID code and bar code is incorporated in the book original reading mode routine, but the discharge OK code (transfer paper) transmitted from the printer 300 is shown. (A code output to the MFDS when the printer is ejected from the printer 300).

As described above, when the discharge OK code (the code output to the MFDS when the transfer paper is discharged from the printer 300) transmitted from the printer 300 is received, the previous subroutine call is executed. , It is not necessary to perform a negative count at the time of a jam.

The above embodiment is an example of a case where image output is processed in real time. For example, when the processing speed of the printer 300 is high, or in order to increase the speed of repeat copying and protect originals, An embodiment in which the image data is stored in the memory and the image data is output from the memory in a timely manner will be described below.

As described above, for example, in FIG.
When the read image of the book document is temporarily stored in the image memory board 343 via the memory controller 342, and the stored image data is sequentially output to the printer 300, the MFDS one-chip microcomputer 330 sends FGATE to the memory controller 342. By incorporating an ID code / bar code-specific count operation subroutine every time an output is requested, the previous count operation can be performed even during memory retention.

[Explanation Corresponding to Claim 7] In the above embodiment, the permission / non-permission of copying is determined by reading the barcode pattern 341c on the spine of the book document. By reading a stamp, a seal, a sticker, or the like, which is pasted or pressed on the page, and recognizing the pattern, it is also possible to determine whether the copy of the book document is permitted or not.

As described above, the means for reading the stamp, the seal, the sticker, etc. of the book document and recognizing the pattern to determine whether or not the copy of the book document is permitted includes the following steps. Stores read data such as stamps, seals, stickers, etc. of book originals, determines whether or not there is a copy permission mark at a predetermined position (predetermined address) on the memory by pattern matching, and permits or counts copying from the memory. Decide not to do.

Here, when the memory board 343 is not used, the above-described determination may be made in the pre-scan to determine whether the reading operation of the book document is permitted or not.

[Explanation Corresponding to Claim 8] By the way, in this MFDS, the read image information is
In the case of outputting to a document document, additional information such as characters and marks (read ID code and bar code pattern) can be combined with the read image data of the book document by the OR circuit 345 and output by the character generator 344. As a result, it becomes clear whether or not a copy has been made from a book with copyright, and further infringement of copyright due to erroneous copying can be prevented.

For example, when a book original with copyright is copied directly, this system allows collection of the copyright fee. However, when a copy of this book original is copied as the original, You can no longer count to calculate the fee.

Therefore, at the time of copying an original document having a copyright, the read image data is combined with a copy prohibition mark or code in advance as a copy image and output, so that a copy of such a book document can be used as an original. Copyright fees can also be collected at the time of copying.

Also, in this embodiment, permission / non-permission of reading of a book document is determined by the ID card recognizing means. For example, reading is performed by key input of a password or a password from the operation unit. Permission / non-permission of the operation may be determined.

[0436] Further, when permitting or rejecting the reading of a book document and collecting a copyright fee, a prepaid card reading device is connected to the MFDS, so that the prepaid prepaid card is charged during the reading process of the book document. A copyright fee may be collected by lowering the points of the card.

[0437]

According to the present invention, an image reading apparatus capable of addressing a copyright problem by enabling only image reading (copying) from an authorized specific book document or by a specific user. Can be provided.

[Brief description of the drawings]

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

FIG. 2 is a schematic cross-sectional view of a drive system of the MFDS.

FIG. 3 is a schematic plan view of a drive system of the MFDS.

FIG. 4 is a perspective view of an end of a page turning reading unit in the MFDS.

FIG. 5 is a cross-sectional view of a roller end portion showing a support structure of a roller constituting the page turning reading unit.

FIG. 6 is a side view showing a lock release mode of the transport unit locking device in the MFDS.

FIG. 7 is a side view showing a lock start operation mode of the transport unit locking device.

FIG. 8 is a side view illustrating a lock completion mode of the transport unit locking device.

FIG. 9 is a perspective view showing an appearance of a printer on which the MFDS is mounted.

FIG. 10 is a perspective view illustrating an appearance of a printer on which the MFDS is mounted when a transport unit is opened.

FIG. 11 is a perspective view of the vicinity of an end of a first reading sensor unit provided in the page turning reading unit.

FIG. 12 is a side view near the end of the first reading sensor unit.

FIG. 13 is a partially enlarged cross-sectional view showing a support structure of an end of the first reading sensor unit.

FIG. 14 is a side view of the inside of the page turning roller 2 of the page turning reading unit.

FIG. 15 is a cross-sectional view showing a structure of a center reference positioning portion of a document placing surface in the MFDS.

FIG. 16 is a plan view of an operation display board in the MFDS.

FIG. 17 is a schematic sectional view of the printer.

FIG. 18 is a plan view of a writing unit of the printer.

FIG. 19 is a diagram illustrating an operation state of a switching claw for switching a transfer paper transport path of the printer.

FIG. 20 is a schematic sectional view of the page turning reading unit.

FIG. 21 is a cross-sectional view illustrating a configuration of the first reading sensor unit.

FIG. 22 is a schematic sectional view showing an operation mode of the MFDS.

FIG. 23 is an explanatory diagram of a turning transport belt in the MFDS.

FIG. 24 is a partial perspective view showing a page turning operation of the turning transport belt.

FIG. 25 is a diagram showing a pitch characteristic of the transporting force of the turning transport belt.

FIG. 26 is a diagram showing a pitch characteristic of an attraction force of the turnover conveyor belt.

FIG. 27 is a diagram showing an applied voltage characteristic of the transporting force of the turning transport belt.

FIG. 28 is a diagram showing an applied voltage characteristic of an attraction force of the turnover conveyance belt.

FIG. 29 is a partial perspective view of another means for imparting unequal charges to the turnover conveyance belt.

FIG. 30 is a partial perspective view of still another means for imparting unequal charges to the turnover conveyor belt.

FIG. 31 is a partial perspective view of still another means for imparting unequal charges to the turnover conveyor belt.

FIG. 32 is a partial perspective view of still another means for imparting unequal charges to the turnover conveyor belt.

FIG. 33 is a partial perspective view of still another means for imparting unequal charges to the turnover conveyor belt.

FIG. 34 is an electrical block diagram of the MFDS.

FIG. 35 is a transition diagram of an operation mode of the MFDS copyright management support system.

FIG. 36 is a transition diagram of operation modes of the MFDS copyright management support system.

FIG. 37 is a transition diagram of operation modes of the MFDS copyright management support system.

FIG. 38 is a transition diagram of an operation mode of the MFDS copyright management support system.

FIG. 39 is a flowchart showing a switching operation of each mode.

FIG. 40 is a flowchart showing an operation in the book document reading mode.

FIG. 41 Spread 2 in book original reading mode
6 is a timing chart showing an operation in a continuous page reading mode.

FIG. 42: Facing spread 1 in book document reading mode
6 is a timing chart illustrating an operation in a page break reading mode.

FIG. 43 is a timing chart showing an operation in the case where the book is set so as to read from the right page of the book original in the double-page spread reading mode.

FIG. 44 is a block diagram of a circuit for delaying the transfer timing of data read in the one-page spread reading mode.

FIG. 45 is a timing chart showing the operation of a circuit for delaying the transfer timing of data read in the two-page spread reading mode.

FIG. 46 is a timing chart showing the operation of the double-sided mode in the two-page spread reading mode.

FIG. 47 is a flowchart showing a switching operation of a sheet original through mode in the sheet original reading mode.

FIG. 48 is a flowchart showing an operation in a single-sided reading mode in the sheet original through mode.

FIG. 49 is a timing chart showing the operation in the single-sided reading mode.

FIG. 50 is a flowchart showing an operation in the same position reading mode in the sheet original through mode.

FIG. 51 is a timing chart showing an operation in the same position reading mode.

FIG. 52 is a flowchart showing an operation of another position reading mode in the sheet original through mode.

FIG. 53 is a timing chart showing the operation in the separate position reading mode.

FIG. 54 is a flowchart showing an operation of a sheet original scanning mode in the sheet original reading mode.

FIG. 55 is a timing chart showing an operation in the sheet document scan mode.

FIG. 56 is a flowchart showing an operation of a sheet original manual opening / closing mode in the sheet original reading mode.

FIG. 57 is a timing chart showing the operation of the sheet original manual opening / closing mode.

FIG. 58 is a scanning control circuit diagram of the page turning reading unit.

FIG. 59 is a block diagram related to the copyright management support system of the MFDS.

FIG. 60 is a flowchart showing an operation of setting an operation mode of the copyright management support system.

FIG. 61 is a flowchart of a book document reading mode of the copyright management support system.

FIG. 62 is a flowchart of a book document reading mode of the copyright management support system.

FIG. 63 is a flowchart of a book document reading mode of the copyright management support system.

FIG. 64 is a flowchart of an ID card recognition mode of the copyright management support system.

FIG. 65 is a flowchart of a barcode recognition mode of the copyright management support system.

FIG. 66 is a perspective view of a book document read by the MFDS.

FIG. 67 is a schematic perspective view illustrating a barcode reading device in the image reading device according to the present invention.

FIG. 68 is a schematic sectional view for explaining a barcode reading device in another image reading device according to the present invention.

FIG. 69 shows an ID code of the copyright management support system.
6 is a flowchart of a barcode-based counting operation processing mode.

FIG. 70 is a schematic perspective view for explaining a center binding unit set in the image reading apparatus according to the present invention.

[Explanation of symbols]

1 Page turning reading unit (as reading means) 1a Barcode scanner (as identification code detecting means) 18 Platen 92 Book original 330 One-chip microcomputer 341C (as control means) 341C Barcode pattern (as identification code)

────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. ⁷ identifications FI G03B 27/62 G03G 15/00 107 G03G 15/00 107 G06T 1/00 430B 21/04 H04N 1/00 108Q G06T 1/00 430 1/04 Z H04N 1/00 108 1/10 1/10 G03G 21/00 390 1/107 (72) Inventor Kazunori Sakauchi 1-3-6 Nakamagome, Ota-ku, Tokyo, Ricoh Company Limited (72 ) Inventor Masaru Shiina 1-3-6 Nakamagome, Ota-ku, Tokyo, Ricoh Co., Ltd. (56) References JP-A-3-255466 (JP, A) JP-A-54-32322 (JP, A) JP-A-5-236175 (JP, A) JP-A-2-184173 (JP, A) JP-A-62-13161 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 1/04-1/207 H04N 1/00-1/00 108 G03G 21/00 370-540 G03G 21/02-21/04

Claims (8)

(57) [Claims] An original platen; reading means for reading the book original image by exposing and scanning an original surface of a book original placed and opened on the original platen; Detecting means for detecting an identification code attached to a predetermined position on the front cover or spine of the book document, and enabling the reading operation by the reading means only when the identification code is detected by the detection means. An image reading apparatus comprising: a control unit that controls the reading unit as described above. 2. An image reading apparatus according to claim 1, wherein
The control means may read from outside the apparatus by reading means.
Input means for inputting an identification signal to enable
Only when the input of the identification signal is detected
A reading operation by the reading means is enabled.
Image reading means for controlling the reading means
Filtering device. 3. Reading a book original placed on a platen
Book document reading mode, where the originals placed on the sheet original tray are
The document is fed onto the platen to read the sheet document image.
ADF mode and image reading device that can be selected
The book cover or spine of the book document placed on the platen
Detecting means for detecting the identification code attached to the position, and when the book original reading mode is selected,
When the identification code is detected by the detection means
Only the reading operation by the reading means is enabled.
An image reading apparatus , comprising: a control unit that controls the reading unit as described above . 4. A document table row the reading of the placed book document on the document table
Book original reading mode, and reading of an original image on an arbitrary original placed on the platen.
Selectable image reading and press plate mode
A Ri apparatus, a predetermined cover or back cover of a book document placed on the document table
Detecting means for detecting the identification code attached to the position, and when the book original reading mode is selected,
When the identification code is detected by the detection means
Only the reading operation by the reading means is enabled.
An image reading apparatus , comprising: a control unit that controls the reading unit as described above . 5. A document table and the book document reading mode in which the Ri readings taken <br/> of the placed book document on the document table, the sheet document placed on the sheet original tray one by one And an ADF mode for reading the document image by feeding the document image onto the image reading apparatus. An input means for inputting an identification signal for enabling a reading operation by the reading means from outside the apparatus. Detecting means for detecting the input of the identification signal; and when the book document reading mode is selected, the reading operation by the reading means is enabled only when the input of the identification signal is detected by the detecting means. An image reading apparatus, comprising: a control unit that controls the reading unit such that: 6. A document table, and read the book perform up only original Ko読 look up mode of the book document placed on the document table, the document on any of the document placed on the document table A pressure plate mode for reading an image, which is selectable, input means for inputting an identification signal for enabling a reading operation by a reading means from outside the apparatus, and detection means for detecting the input of the identification signal; , when a book original Ko読 look-up mode is selected,
An image reading apparatus, comprising: a control unit that controls the reading unit so that the reading unit can perform a reading operation only when the input of the identification signal is detected by the detection unit. 7. A document table, reading means for reading a document image by exposing and scanning a document surface of a document placed on the document table, and outputting image information read by the reading means. Output means for performing an operation of detecting an identification code assigned to a predetermined position on the document surface by exposure scanning of the document surface by the reading means, and performing the identification by the detection operation. An image reading apparatus, wherein the output unit is controlled so that the output operation by the output unit is enabled only when a code is detected. 8. The image reading apparatus according to claim 7, wherein when outputting the image information read by the reading means, the image information is information read from a book document having an identification code attached to a predetermined position. In this case, additional information for identifying the fact is added to the output information by the output means.