JP2000001244A - Automatic document feeder, automatic document processing system, and operation method of automatic document feeder - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To automatically remove a jammed document while ensuring that a conveyance path and the like can be exposed without requiring extra space, and to improve the removal workability. A document feeder, a system, and a method of operating the same are provided. A document placing means (209) for placing a document,
Document discharging means for stacking and storing conveyed documents one by one
(218) and the document discharging means from the document placing means (209).
(218) a document guide means (214) for guiding a document, document transport means (210, 217) for transporting documents one by one, and the document guide means (214) and the document transport means (210, 217).
Opening / closing means (222) for covering and exposing the cover, and rotating connection means (222N, 242) connected to the inner side of the apparatus main body so that the opening / closing means (222) can be opened and closed upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic document feeder for an image processing apparatus such as a copying machine, a facsimile or an image scanner, an automatic document processing system, and a method of operating the automatic document feeder. The present invention relates to an automatic document feeder having an open / close cover for removing a jammed document, an automatic document processing system, and a method of operating the automatic document feeder.

[0002]

2. Description of the Related Art Image processing apparatuses such as copiers, facsimile machines, scanners, and printers are required to have higher speeds, more functions, and more space savings. Automatic document feeder (hereinafter simply referred to as ADF) provided in this image processing apparatus
Space saving and compactness are increasingly demanded.

FIG. 12 is a simplified schematic diagram of an example of the conventional ADF. In FIG. 12, an ADF 106 is mounted on the image processing apparatus 101, and includes a document table 109, a document discharge table 11
8. Retrieval roller 110, first transport roller pair 111 having a document separating function, second transport roller pair 113, paper discharge roller pair 117, document transport paths 114A, 114B and 114C, shaft hole 122H and fixed shaft An opening / closing cover 122 having 122P is provided.

The fixed shaft 122P is disposed in parallel with the rotation axes of a call roller 110, a first conveying roller pair 111 having a document separating function, a second conveying roller pair 113, and a paper discharging roller pair 117.
It is attached to the main body (frame) (not shown) of 106.
The opening / closing cover 122 rotates around the fixed shaft 122P, and opens to the left in FIG. Original platen 10
9 holds the original bundle P1, and the original discharge tray 118
Documents sequentially supplied from the document mounting table 109 are received one by one, and are stacked and stored one by one.

A window 150 for reading a document is opened in the transport path 114C.
The image information of the document conveyed through 114C is read. The call roller 110, the first transport roller pair 111, the second transport roller pair 113, and the paper discharge roller pair 117 include a document table.
The original supplied from 109 is arranged along transport paths 114A, 114B, and 114C through which the original is transported to an original discharge tray 118.

Here, the recall roller 110 is attached to the document table 109.
And pulls out one document from the document bundle P1 placed on the conveyance path 114A. The first transport roller pair 111, the second transport roller pair 113, and the paper discharge roller pair 117 are transported by the transport paths 114B and 114B.
The document is conveyed to the document discharge tray 118 through 4C. The original being transported from the original mounting table 109 to the original discharge tray 118
A document may jam on A, 114B or 114C, and the jammed document must be removed.

When the document is jammed, the operator opens the open / close cover 122 to the left as shown by an arrow 122T in FIG. 12 to expose the transport paths 114A and 114B.
You can remove jammed documents. However, such an opening / closing cover 122 needs an extra space on the left side of the ADF 106, for example, a space W2 shown in FIG.

Accordingly, the ADF 106 and the image processing device 101
Although the width of is W1 as shown in FIG.
In order to install the image processing apparatus 101 having the ADF 106 on a desk or a floor, a space having a full width W1 + W2 is required.
Further, since the rotation pivots of the opening / closing cover 122 are close to each other, the space margin on the lower front surface of the transport path 114B is too small, so that the jammed document cannot be easily removed.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has been made in view of the above circumstances. The present invention provides an automatic document feeder, a system, and a method of operating the automatic document feeder, in which a sufficient removal work space is secured and the removal workability is improved.

[0010]

According to one aspect of the present invention, there is provided an automatic document feeder according to the present invention, which includes an automatic document feeder mounted on an image processing apparatus for feeding, feeding, and discharging a document. A document placing means for placing the document, a document discharging means positioned below the document placing means, for stacking and storing the documents conveyed from the document placing means one by one, and the document discharging means from the document placing means. Document guide means for guiding a document to paper means, document transport means for transporting documents one by one from the document placement means to the document discharge means along the document guide means, the document guide means and the document Opening and closing covering means for covering and exposing the conveying means; and rotating connecting means for connecting the opening and closing covering means to a back side of the apparatus main body so as to be able to open and close vertically and upward in the document conveying direction. And

Further, the automatic document processing system of the present invention
A document table on which a document is to be placed, a document discharge table positioned below the document table, and stacked and stored one by one for the documents conveyed from the document table; and a document from the document table to the document discharge table A document transport path for guiding the document, a document transport mechanism for transporting documents one by one from the document placement table to the document discharge table along the document transport path, and covering and exposing the document transport path and the document transport mechanism. An automatic document feeder having an opening / closing cover to be opened and closed, and a hinge member connected to the back side of the apparatus main body so as to open and close the opening / closing cover vertically and upwardly, and the document feeding mechanism of the automatic document feeding device An image processing apparatus for reading and processing image information of the original conveyed by the automatic document conveying apparatus, and an automatic document conveying apparatus connected to the image processing apparatus at the back of the automatic document conveying apparatus so that the automatic document conveying apparatus can be opened and closed. Characterized by comprising between hinge member.

Further, the method of operating the automatic document feeder according to the present invention includes a step of placing a document on a document table.
Activating the automatic document feeder that feeds the documents one by one from the document table to the document tray, and document transport that guides the documents that are transported from the document table to the document tray when a document jam occurs. Turning the opening / closing cover upward to open the path, removing the jammed document from the document conveying path, closing the opening / closing cover, and exposing other portions of the document conveying path. Rotating the automatic document feeder in substantially the same direction as the opening / closing cover to open the document, removing the jammed document from another portion of the document feed path, and closing the automatic document feeder. It is characterized by becoming.

As a result, the transport path and the like can be exposed without requiring an extra installation space, and a sufficient work space for removing the jammed document is ensured.
It is possible to provide an automatic document feeder, an automatic document processing system, and an operation method of an automatic document feeder that have improved removal workability.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, each of the present invention will be described in detail based on preferred embodiments of the present invention shown in the drawings.

FIG. 1 is a simplified schematic front view of one embodiment of the present invention, and FIG. 2 is a left side view (View 1) of FIG. 1 and 2, an automatic document feeder (ADF) 206 is mounted on an image scanner 201 which is an example of the above-described image processing apparatus. The ADF 206 includes a document placing table 209, a document discharge tray 218, a feeding roller 210, a first document transport roller pair 211, a second document transport roller pair 213, a document discharge roller pair 217, and document transport paths 214A, 214B, and 214C. , An open / close cover 222, a fixed shaft 223, and a hinge member 270.

The opening / closing cover 222 is connected to the first original conveying roller pair 21.
1. Second original transport roller pair 213, original transport paths 214A and 21
4B, and has an inverted L-shaped cross-sectional shape consisting of an upper surface 222U and a side surface 222S. Further, the opening / closing cover 222 has two projections 222T1 and 222T2 formed with a shaft hole 222H on the back side thereof, and is fitted around the fixed shaft 223 so as to be rotatable. Fixed shaft 223
Is ADF2 in the direction orthogonal to the rotation axis of
06 is fixed to the main body 106F, and functions as a rotation axis of the opening / closing cover 222. Thereby, the opening / closing cover 222 is
As shown in a dotted line, the open / close cover 222A is opened upward in FIG.

In FIG. 2, the ADF 206 includes a hinge member 270.
Is connected to the image scanner 201 so as to be freely rotatable around. The hinge member 270 has a structure like a metal hinge of a door, and the hinge plate 270T1 is fixed to the image scanner 201 and the other hinge plate 270T2 is fixed to the back side of the ADF 206 by a fixing member such as a screw. , ADF 206 is lifted from its main body bottom portion 206FB to, for example,
It can be opened by rotating it upward about 0 °. Further, since the shaft 270S of the hinge member 270 and the fixed shaft 223 are arranged in parallel, the opening / closing operation of the opening / closing cover 222 and the ADF 206 can be performed in the same direction, and the operator is less confused in these opening / closing operations. .

The document table 209 holds a document bundle P1. The document discharge table 218 is located below the document table 209, and receives and stores documents sequentially sent from the document table 209 one by one. The document conveying path 214C has a document reading window 250,
The image scanner 201 can read information of each document conveyed through the window 250. Calling roller 21
0, first transport roller pair 211, second transport roller pair 213, paper discharge roller pair
Reference numeral 217 is arranged along a document conveyance path including the conveyance paths 214A, 214B, and 214C. The loading roller 210 pulls out one document from the document bundle P1 on the document mounting table 209, and sends the document to the first pair of transport rollers 211 via the document transport path 214A. The first conveying roller pair 211, the second conveying roller pair 213, and the paper discharging roller pair 217 are sequentially provided with a document conveying path 214B and a document conveying path 214C.
Then, the original is transferred to the original discharge tray 218.

The image scanner 201 has, for example, a line image sensor 280 using a charge-coupled device (CCD). The line image sensor 280 scans a line along a width direction of a document for reading information. . The width direction of the line image sensor 280, that is, the scanning direction is a direction perpendicular to the paper surface of FIG. 1, and the scanning width is the scanning start point of FIG.
280X1 and a scan end point 280X2. While the line image sensor 280 is moving the document through the window 250,
Information is read line by line from the first line to the last line of the document.

A document being transferred from the document table 209 to the document discharge table 218 may be jammed on the transport path 214A, 214B or 214C. When a document jam occurs, the person operating the ADF opens the open / close cover 222 upward as shown by the dotted line 222A in FIG. 1 and FIG. 2 as the open position of the open / close cover 222. be able to. As a result, the jammed document, document feed paths 214A and 214B,
By exposing the first conveying roller pair 211 and the second conveying roller pair 213, the operator can remove the jammed document. As shown in FIGS. 1 and 2, the open / close cover 222
This can be opened without using the extra space W2 required by the prior art shown in FIG. In other words, the installation space of the ADF 206 can be reduced to the space A shown in FIGS.
It does not exceed the width W1 and the depth D1 of the DF 206.

As a hinge member of the opening / closing cover 222, FIG.
As shown in FIG. 7, a metal hinge 242 often used for a door or a lid of a container can be used. The hinge 242 has two mounting plates 242T1 and 242T2 that are bent at their ends and are engaged with each other at their ends.
(Not shown) is inserted into the bent portion of each mounting plate 242T1 and 242T2 so as to connect and couple the two mounting plates 242T1 and 242T2. The mounting plate 242T1 is attached to the open / close cover 222,
The mounting plate 242T2 is fixed to the back side of the main body 206F of the ADF 206 by, for example, a fastening material such as a rivet.

Further, the opening / closing cover 222 and the hinge member are arranged as shown in FIG.
Can be molded as an integral part. The opening / closing cover 222 has a hinge portion 222N that functions as a hinge on the back side of the opening / closing cover 222. In order to form such an integral part, a plastic material such as polypropylene, for example, may be used in order to ensure durability that allows multiple bending without cracking. Further, as shown in FIG. 4, the integrally formed opening / closing cover 222 uses, for example, polypropylene in a portion between 222N1 and 222N2, and uses acrylonitrile-butadiene-styrene in the other portion, and thus has two types. Of different plastic materials. According to this molding method, manufacturing costs can be reduced. Note that 20
6FS is a screw for connecting the open / close cover 222 and the hinge member 222N to the ADF main body 206F.

Further, as shown in FIG.
The combination of the open / close cover 222 having 2A and the main body 206F of the ADF having the pin 206FP functions as a hinge member for opening and closing the open / close cover 222.

FIG. 6 is a simplified schematic front view of another embodiment of the ADF of the present invention used in the copying machine 1 as an example of the image processing apparatus.
It is not drawn to scale based on the actual machine but is schematically drawn so that the internal structure of the can be understood well. 6, reference numeral 1 denotes a copying machine. The copying machine 1 has a main body 1a, a slit glass 2, a contact glass 3, an exposure lamp 4, a mirror 5, and a guide member 15 for a document. Further, the copying machine 1 includes various devices (not shown) such as an image reading device using a lens, a charge-coupled device (CCD), a photosensitive drum, a laser writing device, a developing device, a copy paper transport mechanism, an image transfer device, and an image fixing device. Have The contact glass 3 has a size equal to or greater than the size of the largest document placed on the contact glass 3. The slit glass 2 also functions as a guide member for guiding a document conveyed in contact with or close to the slit glass 2. The width of the slit glass 2 in the document conveying direction is the size of several lines read by the image reading device.

The image reading device of the copying machine 1 has the following 2
In one of the two modes, a radiation original is read and an image signal is output. In the first reading mode, the exposure lamp 4 and the mirror 5 move integrally under the slit glass 2 and stop, and the light image of the original on the slit glass 2 is converted into an image through the lens. Create an image on the reader. Thereafter, while the document is being conveyed rightward in FIG. 6 on the slit glass at the speed determined by the ADF 6, the image reading device reads the image signal of the document and outputs it. When the leading edge of the document reaches the slit glass 2, for example, the conveyance of the document is temporarily suspended in order to record a copy image of the document on copy paper during image formation.

In the second reading mode, the original is placed on the contact glass 3. Next, the exposure lamp 4 and the mirror 5 move under the contact glass 3 from the right end to the left end of the contact glass 3 in FIG. An optical image of the document is formed and read on the image reading device, and an image signal of the document is output.

According to the image signal obtained in any of the above modes, the writing device exposes the uniformly charged photosensitive drum to form an electrostatic latent image on the photosensitive drum according to the image signal. I do. Thereafter, the electrostatic latent image is developed with toner by a developing device. The transfer device transfers the toner image on the photosensitive drum to copy paper supplied by a copy paper transport mechanism. Next, the copy paper transport mechanism transfers the copy paper on which the toner image has been transferred to the fixing device. The fixing device melts and fixes the toner image on the copy paper, and discharges this as the final copy image of the document outside the copying machine.

The ADF 6 is a hinge member (not shown), for example, a hinge member such as a metal hinge shown in FIG.
Attached and mounted on the upper surface of. Here, the pivot axis of the hinge member is arranged substantially parallel to the surface of the contact glass 3 and on the back side of the main body 1a, and the ADF 6 rotates around the hinge member so as to open the surfaces of the contact glass 3 and the slit glass 2. I can move. Therefore, in the second image reading mode, the operator of the ADF 6 places the original on the contact glass 3 and also takes the A
DF6 can be opened. Further, in the first reading mode, the operator of the ADF 6 can open the ADF 6 to take out a document supplied for reading by the copying machine 1 and jammed near the slit glass 2.

In FIG. 6, the ADF 6 further has a document cover 8 including a cushion 7b with a white sheet 7a facing the contact glass 3. When the ADF 6 is closed, the document cover 8 presses the document on the contact glass 3. This document may be a so-called sheet-shaped document or a book-shaped document, but the surface to be copied is in contact with the upper surface of the contact glass 3. The manuscript is
When the copy sheet is smaller than the copy sheet to be copied, the portion of the copy sheet where the white sheet 7a protrudes from the document is prevented from being blackened.

FIGS. 7 and 8 are perspective views showing the outer shape of the ADF shown in FIG. 6, showing the open and closed covers closed and open, respectively. As shown in FIGS. 7 and 8, the ADF 6 has a main cover 6a which can be called a main body thereof.
And an opening / closing cover 22. The document is placed and stored on the document table 9 with the side to be copied facing up. Further, the document table 9 has side fences 20a and 20b parallel to the direction in which the pair of documents are conveyed. This pair of side fences 20
Reference numerals a and 20b are freely movable in a direction perpendicular to the document conveying direction, and guide the documents of different sizes so as to sandwich both sides thereof. Therefore, the original is supplied into the ADF 6 without distortion.

Returning to FIG. 6, the ADF 6 includes a draw roller 10, a first transport roller 11, a reverse or separation roller 12, a second transport roller pair 13, a white guide member 19, a third transport roller 21, and a discharge roller. A pair of paper rollers 17, a first transport path 14, a second transport path 16,
Having. The pull-in roller 10, the first transport roller 11, the reverse roller 12, the second transport roller pair 13, and the third transport roller 21 are disposed along the first transport path 14, and the paper discharge roller pair 17 is disposed in the second transport path 16
Are located along the exit.

The loading roller 10 is movable between a position shown by a solid line and a position shown by a dotted line in FIG.
The uppermost original is pulled out from the original bundle P having various thicknesses stacked on the sheet. The fetch roller 10 automatically reaches a position on the upper surface of the document bundle P in contact with the document by its own weight, for example.

White guide member 19 and slit glass 2
Forms a part of the first transport path 14 and guides a document to be transported. The gap between the white guide member 19 and the slit glass 2 is set to, for example, 2 mm so that an optical image of the document is formed on the image reading apparatus by a lens having a predetermined focal length. In addition, the white guide member 19 scatters and reflects light emitted from the exposure lamp 4 and hitting a portion not covered by the conveyed document.
As a result, even when the original is smaller than the copy paper, it is possible to prevent portions of the copy paper other than the copy portion from becoming black.

The third transport roller 21 is in contact with the guide member 15 of the copying machine 1, and the transport roller 21 sandwiches the document and transports the document to the second transport path 16. As shown in FIG. 6, the guide member 15 is located between the slit glass 2 and the contact glass 3, and the right end thereof slightly enters the second conveyance path 16 so that the document can smoothly enter the conveyance path 16. It has been done.

In the first reading mode, when the copying operation is started, each original of the original bundle P on the original placing table 9 is supplied one by one, and is transported at a predetermined speed V1 by the original transport mechanism. Are discharged to the document discharge table 18 and stacked. First, the call-in roller 10 receives the original bundle P on the original placing table 9.
Is pulled out, and the original is sent to the first transport roller 11. First transport roller 11 and second transport roller pair 13
Sends the document to the third transport roller 21 at a predetermined speed V1.

The peripheral speed V2 of the third conveying roller 21 and the sheet discharging roller pair 17
May be substantially the same as the peripheral speed V1 of the second transport roller 13. However, the peripheral speed V2 may be set to, for example, 101% of V1, so that the original being conveyed is slackened and does not flutter. Peripheral speed of the third transport roller 21 and the discharge roller pair 17
V2 can be driven by a motor (not shown) via a torque control means so that excessive tension is not applied to the document. The discharged document is stacked on the document discharge table 18 with the surface read by the slit glass 2 facing down.

When a plurality of originals are simultaneously pulled out from the original mounting table 9, the reverse roller 12 rotates clockwise, and the uppermost one of the plurality of originals which is in contact with the first transport roller 11 is rotated. Is sent to the first transport path 14, and the other originals that are simultaneously pulled out are blocked. In other words, reverse roller
Reference numeral 12 functions as a document separator. The reverse roller 12 can be replaced with a fixed friction pad made of synthetic rubber or a cork sheet for blocking originals other than the uppermost original of the original bundle P on the original placing table 9. .

In FIGS. 7 and 8, the opening / closing cover 22 is a hinge member hidden inside the main cover 6a.
Are rotatably attached to the main body of the ADF 6 by hinge members as shown in FIG. The rotation axis of the hinge member is ADF6
On the back side of the main body of the contact glass 3, it is installed in a direction perpendicular to the rotation axis of the draw roller 10 and substantially parallel to the upper surface of the contact glass 3. As shown in FIG. 8, the opening / closing cover 22 can be opened, for example, at an angle of 90 °. When the opening / closing cover 22 is opened, the first transport roller 11, the reverse roller 12, the second
The transport roller pair 13 and the first transport path 14 are opened (exposed).

For example, when the power is turned off, the original is wrinkled or curled, or the original is too thin, the original arrives from the original mounting table 9 to the original discharge table 18. May be clogged on the way. If such a document jam occurs, the operator can open and close the cover.
By opening 22, the jammed document can be taken out from the loading roller 10, the first transport roller 11, the reverse roller 12, the second transport roller pair 13, or the first transport path 14. In addition, since the hinge member of the opening / closing cover 22 is located on the back side (rear side) of the ADF 6, a sufficient working space for taking out a jammed document can be obtained on the left side of the first transport path 14. , Good operability and workability can be achieved. In addition, ADF6
Does not increase even when the opening / closing cover 22 is opened.

Since the ADF 6 can be opened upward, a jam of the document around the slit glass 2 or the guide member 15 can be detected.
Since the rotation direction for opening and closing F6 is substantially the same as the rotation direction of the opening / closing cover 22, the operator can easily and easily carry out the work for removing the document jam.

In the second reading mode, the operator first opens the ADF 6 upward, places the copy side of the sheet or book original facing the contact glass 3, and then closes the ADF 6 to place the ADF 6 on the contact glass 3. Press the original. When the operator presses the start button, the above-described copying operation starts.

FIGS. 9, 10 and 11 are schematic views showing a structure in which an ADF according to another embodiment of the present invention is mounted on an image scanner 201. FIG. This is similar to that of the embodiment shown in FIGS. 1 and 2, and the components having the same functions are denoted by the same reference numerals and the description of those which are not necessary is omitted.

The ADF 306 includes an opening / closing cover 222,
210, a first transport roller 311A, a reverse roller, ie, a separation roller 311B, a second transport roller 313B, a pinch roller 313A, and an upper guide plate 314A1 and a lower guide plate 3 forming a first transport path 314A.
14A2, a left guide plate 314B1, a right guide plate 314B2, and a driving device 225 that constitute the second transport path 314B.

In this apparatus, the first transport roller 311A, the pinch roller 313A, the upper guide plate 314A1, the left guide plate 314B1, and the driving device 225 are attached to the opening / closing cover 222 in order to further improve the workability of removing the jammed document. ing. Call-in roller 210, reverse roller or separation roller 311B, second
Transport roller 313B, lower guide plate 314A2 and right guide plate 314
B2 is attached to the main frame of the ADF 306. The first transport roller 311A includes, for example, a driving device 22 such as an electric motor.
5 rotates clockwise. As the drive mechanism,
A gear mechanism coupled to a motor built into the body of the ADF 306 can also be used. FIG.
FIG. 9 is a side view of the DF 306 as viewed from the direction shown in View 1,
The ADF 306 and the opening / closing cover 222 are open at angles of 15 ° and 70 °, respectively. FIG. 11 is a front view of the ADF 306 shown in FIG. 9, showing a state in which the ADF 306 and the opening / closing cover 222 are both opened. As shown in FIGS. 9, 10, and 11, when the cover 222 is closed, the pinch roller 313A is pressed by the second transport roller 313B, and the cover 313A is closed.
When 222 opens, pinch roller 313A, upper guide plate 314A
1. The left guide plate 314B1 and the driving device 225 are also opened. Thereby, the first transport path 314A and the second transport path 31
It becomes extremely easy to remove the original jammed around 4B.

Guide plate 314C1 having window 250 for document reading
Are arranged along the transport path 314C, and the image scanner 20
1, the guide plate 314C2 is attached to the ADF 306, and these constitute a transport path 314C. ADF306 is A
A hinge member 270 is mounted on the image scanner 201 so that the DF 306 can be opened at an angle of 15 °. Therefore, FIG.
When the ADF 306 is opened, the guide plate 314C1 remains on the image scanner 201 as shown in FIG.
A relatively large space can be secured for removing a document jammed around the 314C.

In the above-described embodiment, a tray (tray) is shown as the document placing means and the document discharging means. Thus, an appropriate shape can be adopted. Further, although the document conveying path mainly including a guide plate is shown as the document guide unit, a guide unit using a belt other than the guide plate may be employed, and other appropriate document guide units may be employed. In addition, various types of rollers
Although the (roller) has been described, a roller is simple and suitable as a transporting means, but any other transporting means such as a belt and a rotary cylinder may be employed. Also, the hinge member has been described as the rotation connecting means, but the hinge member as the rotation connecting means is not limited to the one using the so-called hinge itself, but also various hinge mechanisms or other rotation mechanisms that perform the same function as the hinge. It is evident from the above description that it covers possible connection structures. The present invention is not limited to the illustrated embodiment, but encompasses all forms resulting from the above description.

[0047]

The automatic document feeder (ADF) of the present invention
The rotation axis of the opening / closing cover is provided on the back side of the main body, and this rotation axis is parallel to the rotation axis of the main body, so that the opening / closing cover is opened within the installation area of the main body to expose each transport mechanism. It can be used in a relatively small installation space while securing sufficient working space to remove jammed documents, and greatly improves the workability of eliminating jammed documents. The image processing system using the ADF of the present invention, and further, the operation method of the ADF has the same effect.

[Brief description of the drawings]

FIG. 1 is a simplified schematic front view of an embodiment of the present invention.

FIG. 2 is a left side view (View 1) of FIG.

FIG. 3 is a schematic side view of an example of a hinge portion of an opening / closing cover applied to the present invention.

FIG. 4 is a schematic side view of another example of the hinge portion of the opening / closing cover applied to the present invention.

FIG. 5 is a schematic side view of another example of the hinge portion of the opening / closing cover applied to the present invention.

FIG. 6 is a simplified schematic front view of another embodiment of the present invention.

7 is an external perspective view of the embodiment of FIG. 6, showing a state in which an opening / closing cover is closed.

8 is an external perspective view of the embodiment of FIG. 6, showing a state where an opening / closing cover is opened.

FIG. 9 is a simplified schematic front view showing a state in which an opening / closing cover according to another embodiment of the present invention is closed.

FIG. 10 is a left side view (View 1) of FIG. 9;

11 is a simplified schematic front view in a state where an opening / closing cover of FIG. 9 is opened.

FIG. 12 is a simplified schematic front view of an example of a conventional ADF.

[Explanation of symbols]

 1, 201 Image processing device 6, 206, 306 Automatic document feeder (ADF) 9, 209 Document table 10, 210 Recall roller 11, 211, 311A First transfer roller 12, 311B Reverse roller 13, 213, 313 Second Conveying roller pair 14, 214, 314 Conveying path 17, 217 Discharge roller pair 18, 218 Discharge table 22, 222 Opening / closing cover 242 First hinge member 270 Second hinge member

Claims (19)

[Claims] An automatic document feeder mounted on an image processing apparatus for feeding, transporting, and discharging a document, comprising: a document placing means for placing a document; and a document loading means positioned below the document placing means. Document discharge means for stacking and storing the documents conveyed from the placement means one by one; document guide means for guiding the document from the document placement means to the document discharge means; and the document along the document guide means A document conveying means for conveying documents one by one from the placing means to the document discharging means, an opening / closing covering means for covering and exposing the document guide means and the document conveying means; Rotating connection means connected to the back side of the apparatus main body so that it can be opened and closed vertically and in the direction,
An automatic document feeder comprising: 2. The automatic document feeder according to claim 1, wherein said document feeder has a document separating means for feeding only an uppermost document among a plurality of documents fed from said document placing means. apparatus. 3. The automatic document feeder according to claim 1, further comprising a second rotating connection means for connecting the image processing apparatus and the apparatus main body at the back side of the apparatus main body so as to be able to open and close upward. 4. A rotating shaft of the second rotating connecting means so that the apparatus main body rotates in substantially the same direction as a rotating direction of the opening and closing covering means. 4. The automatic document feeder according to claim 3, wherein the automatic document feeder is arranged in parallel. 5. A sheet document or book document is covered,
4. The automatic document feeder according to claim 3, further comprising document cover means for pressing the document against a contact glass of a document of the image processing apparatus. 6. The automatic original according to claim 1, wherein said original conveying means comprises a plurality of original conveying means, and at least one of the plural original conveying means is attached to said opening / closing means. Transport device. 7. The automatic original according to claim 1, wherein said original guide comprises a plurality of original guides, and at least one of the plurality of original guides is attached to said opening / closing means. Transport device. 8. An automatic document feeder mounted on an image processing apparatus for feeding, transporting, and discharging a document, comprising: a document table on which a document is placed; and a document table positioned below the document table; A document discharge tray for stacking and storing the conveyed documents one by one; a document transport path for guiding the document from the document tray to the document discharge tray; and A document transport mechanism for transporting the documents one by one to a document discharge table, an open / close cover covering and exposing the document transport path and the document transport mechanism, and opening / closing the open / close cover vertically and upward in the document transport direction. An automatic document feeder comprising: a hinge member connected to a rear side of the apparatus main body so as to be able to perform the operation. 9. The automatic document feeder according to claim 8, wherein said document feed mechanism has a document separating roller for feeding only the uppermost document among a plurality of documents conveyed from said document table. . 10. The automatic document feeder according to claim 8, further comprising a second hinge member that connects the image processing apparatus and the apparatus main body at the back side of the apparatus main body so that the apparatus can be opened and closed upward. 11. The rotation axis of the second hinge member is parallel to the rotation axis of the hinge member so that the apparatus main body rotates in substantially the same direction as the rotation direction of the opening / closing cover. Item 11. The automatic document feeder according to Item 10. 12. The automatic document feeder according to claim 8, further comprising a document cover for covering a sheet document or a book document and pressing the same against a contact glass of the document of the image processing apparatus. 13. The automatic document feeder according to claim 8, wherein the document feed mechanism includes a plurality of document feed rollers, and at least one of the plurality of document feed rollers is attached to the opening / closing cover. apparatus. 14. The automatic document feeder according to claim 8, wherein the document feed path includes a plurality of document guide plates, and at least one of the plurality of document guide plates is attached to the opening / closing cover. apparatus. 15. The automatic document feeder according to claim 8, wherein the opening / closing cover is pivotally supported by a hinge member formed integrally with the opening / closing cover. 16. A document mounting table on which a document is mounted, a document discharge table positioned below the document mounting table and stacked and stored one sheet at a time, and the documents conveyed from the document mounting table are stored. A document transport path for guiding a document to the document discharge tray, a document transport mechanism for transporting documents one by one from the document mounting table to the document discharge tray along the document transport path; and An automatic document feeder comprising: an open / close cover that covers and exposes the document feed mechanism; and a hinge member connected to the back side of the apparatus main body so that the open / close cover can be opened and closed vertically and upward in the document feed direction. An image processing device that reads and processes image information of a document conveyed by the document conveyance mechanism of the automatic document conveyance device; and an automatic document conveyance device at the back of the automatic document conveyance device so that the automatic document conveyance device can be opened and closed upward. Equipment and said An automatic document processing system, comprising: a second hinge member for connecting to an image processing apparatus. 17. The automatic document processing apparatus according to claim 16, wherein the document feed path includes a plurality of document guide plates, and at least one of the plurality of document guide plates is attached to the image processing apparatus. Manuscript processing system. 18. A step of placing a document on a document placing table, a step of activating an automatic document feeder that transports documents one by one from a document placing table to a document discharge tray, and a step of placing a document when a document jam occurs. Rotating the opening / closing cover upward to open a document transport path that guides the document transported from the mounting table to the document discharge tray; opening the open / close cover; removing a jammed document from the document transport path; Closing the cover; rotating the automatic document feeder in substantially the same direction as the opening / closing cover to open to expose another portion of the document feed path; and jamming from another portion of the document feed path. A method for operating the automatic document feeder, comprising the steps of: removing a document; and closing the automatic document feeder. 19. A step of placing a document on a document placing table, a step of activating an automatic document feeder for transporting documents one by one from a document placing table to a document discharge tray, and a step of placing a document when a document jam occurs. Turning the automatic document feeder upward to open a document feed path that guides the document conveyed from the mounting table to the document discharge tray; and removing the jammed document from the document feed path. Closing the automatic document feeder, opening the open / close cover in substantially the same direction as the automatic document feeder to open another portion of the document feed path to expose other portions of the document feed path, A method for operating an automatic document feeder, comprising: removing a jammed document from a portion; and closing an open / close cover.