JP2848429B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus which facilitates maintenance of a paper path by a user.

[0002]

2. Description of the Related Art In recent years, as a facsimile apparatus, a facsimile apparatus of a laser print system for outputting a recorded image on plain paper has been widely used.

A mechanism of a conventional facsimile machine will be described with reference to the drawings. FIG. 10 is a sectional view showing a schematic configuration of a conventional facsimile machine.

[0006] In FIG. 10, reference numeral 101 denotes an apparatus main body. Reference numeral 102 denotes a paper feed cassette in which plain paper serving as recording paper is stored. Reference numeral 104 denotes a recording paper transport roller. Printing is performed while the recording paper is transported by the recording paper transport roller 104, and the recording paper is discharged to a recording paper discharge tray 105. Reference numeral 106 denotes a recording unit opening / closing unit, which rotates about the rotation fulcrum 107 and when a paper jam or the like occurs, the user opens the recording unit opening / closing unit 106 and removes the recording paper that has caused a paper jam. C indicates the flow of the recording paper.

Reference numeral 108 denotes a document table on which documents are stacked. The document is introduced from the lowermost surface to the paper feed roller 110 by an introduction roller 109. Reference numeral 111 denotes a separation piece, which presses the upper surface of the document introduced by the introduction roller 109 and rotates the paper feed roller 110 at the leading end of the lowermost surface of the document to feed a plurality of documents one by one from below. Is done. 1
Reference numeral 12 denotes a document conveying roller provided on the apparatus main body 101 side. A fixed pressure is applied to the document conveying roller 112 to press the opposing pinch roller 113, and a constant pressure is also applied to the pinch roller 113 to press the opposing document conveying roller 112. Document feed roller 1
The document 12 and the pinch roller 113 are arranged near the center line of the document conveying path, and the rollers 112 and 113 sandwich the document in the central area, and the document is conveyed by the rotation of the document conveying roller 112. . Pinch roller 1
Reference numeral 13 is provided in the reading opening / closing section 116, and a separating piece 111 is also provided near the document insertion port on the same side of the reading opening / closing section 116. Reference numeral 114 denotes a reading unit, through which a document is discharged to a document discharge tray 115. Reference numeral 116 denotes a reading opening / closing unit. When the document causes a paper jam, the user opens the reading opening / closing unit 116 around the rotation fulcrum 117 and removes the document having a paper jam. Reference numeral 118 denotes a latch, which is provided near the document insertion opening of the reading and opening unit 116 and is set so as to keep a constant distance between the reading and opening unit 116 and the apparatus main body 101 when the reading and opening unit 116 is in the closed position. ing. D indicates the flow of the document.

Hereinafter, the operation of the above conventional example will be described. First, in the case of a recording operation, recording paper is supplied from a paper supply cassette 102 by a paper supply roller 103 and is supplied to a recording paper transport roller 1.
Printing is performed while the sheet is conveyed to the printer. At this time, when a paper jam occurs, the user removes the recording paper discharge tray 106 from the side surface of the apparatus main body 101 and creates a space on the side of the apparatus main body 101 for opening the recording unit opening / closing unit 106. When the recording unit opening / closing unit 106 is opened around the rotation fulcrum 107, the recording paper conveyance path is opened, so that the user can remove the recording paper that has caused a paper jam from the conveyance path. When the paper jam has been cleared, the recording unit opening / closing unit 106 is returned to the original closed position, the recording paper discharge tray 105 is reinserted, and the recording paper discharge waits. The recording operation is restarted, and the recording paper is discharged onto the recording paper discharge tray 105.

Next, in the case of a reading operation, the document stacked on the document table 108 is advanced by the introduction roller 109 from the lowermost surface. At this time, the documents are not separated one by one,
The lower part of the stack of originals moves forward. When the document group reaches the paper feed roller 110, the document group is pressed by the separating piece 111 from above. Since the paper feed roller 110 is rotating at the lowermost surface of the original group, the originals are fed one by one from the lowermost surface. Thereafter, the document is read by the reading unit 114 while being transported while being sandwiched between the document transport roller 112 and the pinch roller 113. At this time, if a paper jam occurs, the user releases the latch 118 and rotates the reading opening / closing unit 116 about the pivot fulcrum 117 to open the document conveyance path. The document that caused the paper jam is removed, and the reading and opening unit 116 is closed. When the latch 118 attached to the reading opening / closing section 116 catches on a pin (not shown) of the apparatus main body 101, the reading opening / closing section 1
Reference numeral 16 maintains the closed position while forming one side surface of the document conveyance path. The document is again placed on the document table 108 and the reading operation is resumed, and the read document is discharged to the document discharge tray 115.

[0008]

However, in such a conventional configuration, first, since the recording paper discharge tray is provided on the side of the apparatus, when the user is away from the apparatus, the recording paper is discharged. Even if the document is discharged, it is hidden behind a document discharge tray or the like, and there is a problem that it is not easy to confirm that the document has been received. Further, since the recording paper discharge tray is provided on the side of the apparatus, an opening / closing section for clearing the paper jam is also provided on the side of the apparatus. Therefore, when opening the opening / closing section, it is necessary to first remove the document discharge tray and the recording paper discharge tray, and then to secure a space for the length of the opening / closing section beside the apparatus. Maintenance at the time of reception must be performed promptly due to the relationship with the communication partner, but various operations must be performed before opening the opening / closing unit, which requires extra time and requires immediate maintenance. There was also a problem that could not be done.

Second, in the reading apparatus, there is a problem that the ability to automatically feed a document is reduced by use.
One of the causes of the decrease in the automatic paper feeding ability is the configuration of the above-described conventional technology. That is, as described above, the document conveying roller 112 and the pinch roller 113 have a relationship of pressing each other. This pressing force is also a force of the apparatus main body 101 and the reading opening / closing unit 116 pressing each other across the document conveyance path. Therefore, the reading and opening unit 116 floats from the apparatus main body 101 due to the pressing force. However, the latches 118 are provided at both ends of the reading opening / closing section 116 near the document insertion opening which do not hinder the insertion of a document, and keep the distance between the apparatus main body 101 and the reading opening / closing section 116 constant. That is, the document transport roller 112 and the pinch roller 1
13 pushes the central portion of the reading opening / closing section 116 upward, and the latch 118 attempts to hold both ends of the reading opening / closing section 116 downward. As a result, initially, the pressing force of the document conveying roller 112 and the pinch roller 113 does not affect the distance between the apparatus main body 101 and the reading / opening unit 116, but the reading / opening unit 116 is usually formed of resin. Use or reading and opening / closing unit 116
The setting relationship gradually deteriorates due to the opening / closing operation of. Since the force is not uniformly applied to the reading opening / closing section 116 at the center and the end, the reading opening / closing section 116 has a curved shape in which the central region gradually expands.

As a result, the pressing force between the original conveying roller 112 and the pinch roller 113 is reduced.
1 is also provided in the reading opening / closing section 116, so that the pressing relationship between the sheet feeding roller 110 and the separating piece 111 is also weakened. When the force with which the separation piece 111 presses the paper feed roller 110 becomes weak, a problem arises in that the paper feeding ability of the document is reduced.

The present invention solves the above-mentioned problems, and the first
In addition, while miniaturizing the device, even if the user is away from the device, it is easy to confirm that there was reception, and if a reception error such as paper jam occurs, immediately A facsimile apparatus capable of performing maintenance is realized.

Secondly, maintenance can be easily performed when a reading error such as a paper jam occurs in the reading unit while the apparatus is downsized, and the paper feeding ability is reduced by use. And a facsimile apparatus capable of preventing the falsification.

Still another object of the present invention is to provide a facsimile apparatus capable of preventing a problem of a paper feeding defect and a reading defect caused by reducing the size of a reading unit.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention discharges recording paper to a concave portion provided on the upper surface of the apparatus.
Recording section, a U-shaped traveling path for transporting the original,
An opening that is provided rotatably along the path and opens toward the recess.
And a reading unit having a closed part .

[0015] Further, a U-shaped traveling path for transporting the original is provided at the bottom.
A reading device arranged obliquely with respect to the surface,
And an opening / closing unit that is provided and rotatably held .

[0016] A curved traveling path and the traveling path
Paper feed roller that feeds the original to the
Separating pieces for touching and separating originals one by one
A shape that does not touch the paper roller
At the downstream side, the width of the supply
It is provided with a pinch roller that comes into contact with a paper roller .

Also, a curved traveling path and the traveling path
Paper feed roller that feeds the original to the
A separating piece for separating the originals one by one, and
A part of the line width and the area around the position of the paper feed roller
Opening that exposes the area and whether this opening is rotatably covered
Holding the separation piece and separating the paper feed roller and the separation piece from each other.
And an opening and closing unit for releasing the pressing.

Also, a curved traveling path and the traveling path
Paper feed roller that feeds the original to the
Separation pieces that touch and separate the original one by one, and the fed original
Roller that transports the paper through the reading point, and the transport roller
A pinch roller for transporting the document between the rollers,
Holding the separation piece provided along a first area on a road
First releasing the pressing of the paper feed roller and the separation piece;
An opening / closing part, provided along a second area on the travel path.
Holding the pinch roller, the transport roller and the pinch
Provided with a second opening / closing part for releasing the pressing with the roller
It is.

Also, the traveling path having a curved shape and the traveling
Paper feed roller that feeds the original to the
Separation pieces that touch and separate the original one by one, and the fed original
Roller that transports the paper through the reading point, and the transport roller
A pinch roller for transporting the document between the rollers,
Holding the separation piece provided along a first area on a road
First releasing the pressing of the paper feed roller and the separation piece;
An opening / closing part, provided along a second area on the travel path.
Holding the pinch roller, the transport roller and the pinch
A second opening / closing section for releasing the pressing with the roller,
On the center line where the pinch roller of the opening / closing part is arranged,
A latch for holding the second opening / closing portion in the closed position.
It is.

[0020]

According to the present invention, with the above-described structure, the device is provided on the upper surface of the apparatus.
By discharging the recording paper into the
The recording paper will appear on the top of the device, so the user
Close to the equipment even if you are away from the equipment.
Immediately confirm that a call was received without stopping
Can be. In addition, along the U-shaped travel path
Open the opening / closing part provided rotatably toward the recess.
With this configuration, the recording paper discharge section of the recording section and the opening
The common space can be used as the space where the closed part opens
Therefore, if a paper jam occurs in the reading unit,
Opening the closed section allows you to copy documents without increasing the size of the entire device.
The running path can be opened to a large space, making it easy for users
To remove paper jammed documents easily
Can be.

Further, a U-shaped traveling path for conveying the original is read.
Remove the paper jam of the original by placing it at an angle to the bottom of the
Opening / closing part is provided rotatably along the traveling path.
When a paper jam occurs, the running path is U-shaped.
If the travel path space occupied by the device is reduced
Also, the traveling path is provided at an angle to the bottom of the reader.
Therefore, when the opening / closing part is opened, the traveling path and the bottom of the reading device
A large space is created between the
You can remove documents that have become jammed.

In addition, a document feeder for feeding a document to a U-shaped traveling path is provided.
On the surface of the paper roller, place a separation piece that separates the documents one by one.
Abut on the paper feed roller at the center.
Pinch roller on the downstream side in the transport direction from the separation piece.
The feed roller having a width wider than the separation piece.
The original is held by the separation
The document is pressed against the paper feed roller with a
When the tip advances beyond the separation piece and is released from pressing,
The center of the leading edge of the original that was in contact with the separation
The paper feed roller will be turned in the opposite direction.
Even if the pinch roller is
The pinch roller is located at the center of the leading edge of the document.
Do not touch the paper and advance the document
And the rolled-up area at the center of the original
Paper jams due to contact with paper rollers.
And the conveyed document is separated from the
At multiple points between the contact point and the pinch roller contact point
The center of rotation when the document rotates is
And the leading edge of the document as it moves on the U-shaped
If the vehicle hits the road and loses balance,
It is possible to prevent the manuscript from rotating and being transported obliquely.

Further , the traveling path is curved to reduce the size of the apparatus.
And a part of the running width of the
An opening is provided to expose the peripheral area of the
Hold the separation piece in the opening / closing part that covers the opening
Pressing the paper feed roller and the separation piece by opening the opening / closing part
The separation piece and the paper feed roller
Open and close the minimum range that can release the pressing relationship with
If a jam occurs, press the separation
Pressure relationship so that the original can be removed.
When the entire width of the travel path is configured as an open / close section
Pressure relationship between the separation piece and the feed roller
Can be maintained.

A paper feed roller for feeding a document and the paper feed roller
Pressing against a piece that abuts the paper roller and separates the original one by one
A first opening / closing unit for canceling the relationship,
A transport roller that transports the document past the reading point and this transport
A pinch roller provided to face the roller and transports the document
And a second opening / closing part for releasing the pressing relationship with
As a result, the document is jammed, and the second opening / closing unit
When opening the document and removing the original, close the first opening / closing part.
Each time a document is jammed.
Without releasing the pressing relationship between the feed roller and the separation piece
Release the pressing relationship between the feed roller and the separation
By doing so, the set pressing relationship is broken and the paper feeding capacity
Can be prevented from decreasing.

A paper feed roller for feeding a document and the paper feed roller
Pressing with a separation piece that abuts the paper roller and separates documents one by one
A first opening / closing section for releasing the pressure relationship,
Rollers that transport the original through the reading point
Pinch row that conveys the document that is provided facing the feed roller
Separately from the second opening / closing part that releases the pressing relationship with the
Further, a pinch roller of the second opening / closing section is disposed.
By providing a latch on the center line,
The force that the opposing pinch rollers press against each other is the second opening and closing
Even when pressed in the opening direction, the center where the most force is applied
Section holds the latch so that it is in the closed position.
Close the second opening / closing section without distorting the opening / closing section 2 in a bow shape
It can be held at regular intervals in the position.

[0026]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of a facsimile apparatus of the present invention. FIG. 2 is a sectional view showing a schematic configuration of a facsimile apparatus according to one embodiment of the present invention.

1 and 2, reference numeral 1 denotes an apparatus main body. At the bottom of the apparatus main body 1, a paper feed cassette 2 is installed so as to be removable from the front side, and plain paper used as recording paper is loaded in the paper feed cassette 2. The sheet cassette 2 is configured to be inserted from the front, not from the side of the apparatus. The recording paper is fed from a paper feed cassette 2 to a recording paper transport path by a recording paper feed roller 3. Further, the recording paper is transported by the recording paper transport roller 4 and reaches the developing position. At the developing position, the image is developed on the recording paper by a known developing method. That is, a charge is applied to a photoreceptor (not shown), and toner is attached to an area on the photoreceptor to which the charge is applied or an unapplied area,
The transfer is performed by transferring the toner onto recording paper. A fixing roller 5 presses the toner adhered on the recording paper while applying high heat to fix the toner on the recording paper.
The recording paper on which the image has been developed is discharged onto a recording paper discharge tray 7 by a recording paper discharge roller 6. The recording paper discharge tray 7 is detachably placed at the recording paper discharge port. The arrow A indicates the flow of the recording paper, and indicates that the recording paper is being conveyed from the bottom part to the top part of the apparatus main body 1.

Reference numeral 8 denotes a recording unit opening / closing unit, which is configured to open to the front of the apparatus main body 1 around a pivot point 9.

Reference numeral 10 denotes a document table on which documents are stacked, and a document set guide 11 for regulating the width of the document is provided. The original is pushed forward by the lower portion of the original group stacked by the introduction roller 12. Reference numeral 13 denotes a separation piece, which presses the upper surface of the document group extruded by the introduction roller 12.
Reference numeral 14 denotes a document feed roller, which rotates while abutting on the lowermost surface of the group of documents whose upper surface is pressed by the separating piece 13, and separates and feeds the documents one by one. Reference numeral 15 denotes a pinch roller, which is rotatably provided in contact with the paper feed roller 14. When a plurality of thick bundles of originals are set, the leading end of the originals may not reach the original feed roller 14. It is pushed out and reaches the document feed roller 12. The pinch roller 15 is a separation piece 13
It is provided further downstream in the document transport direction, and is located at a position distant from the separation piece 13. Reference numeral 18 denotes a document transport roller that transports a document while passing the reading point. At the reading point, the document is illuminated by the light source 17. The reflected light from the original is refracted by the two mirrors 18 and forms an image on the reading element 20 via the lens 19. Read element 2
0 converts the collected light into an image signal. As the reading operation proceeds, the document is discharged to the document discharge tray 21. Arrow B indicates the flow of the document.

Reference numeral 22 denotes a reading unit opening / closing unit, which is formed of resin and has a structure that opens downward around a pivot point 23.

Hereinafter, the operation of the facsimile apparatus of the present invention having the above-described configuration will be described.

First, in the case of reception, recording paper is fed by a recording paper supply roller 3 from a paper supply cassette 2 arranged on the bottom of the apparatus main body 1. The recording paper advances along the paper path from below by the rotation of the recording paper transport roller 4, and toner adheres to the recording paper by a developing device (not shown). The toner on the recording paper is heated and pressed by the fixing roller 5 and is fixed on the recording paper. The recording paper on which the image has been recorded is discharged by a recording paper discharge roller 6 onto a recording paper discharge tray 7 arranged at the center of the upper surface of the apparatus main body 1. That is, when receiving, the leading end of the recording paper appears on the upper surface of the apparatus main body 1. Thereby, even when the user is away from the apparatus main body 1, the user does not approach the vicinity of the apparatus main body 1,
It can be easily determined that there has been reception.

When a paper jam occurs during the recording operation, the user rotates the recording unit opening / closing unit 8 formed on the front of the apparatus main body 1 about the pivot 9 so that the paper path of the recording paper passes. To release. Since the recording unit opening / closing unit 8 is separated from the apparatus main body 1 by the paper path of the recording paper as a boundary, when the recording unit opening / closing unit 8 is opened, the entire path of the paper path appears. Therefore,
Regardless of where in the paper path the recording paper is jammed, the user can easily remove the jammed recording paper.

At this time, since the recording section opening / closing section 8 is configured to open to the front of the apparatus main body 1, the user does not need to perform various other operations to open the recording section opening / closing section 8. That is, since the user performs various operations on the front of the normal apparatus main body 1, there is no normal object and nothing is present. Further, since the recording paper discharge tray 7 is disposed on the upper surface of the apparatus main body 1 instead of the side surface of the recording section opening / closing section 8, there is no need to remove the recording sheet opening / closing section 8 when opening it. Therefore, when the user opens the recording section opening / closing section 8, it is not necessary to remove the recording paper discharge tray 7 or to perform operations such as removing objects around the recording section opening / closing section 8.

Further, since the recording section opening / closing section 8 is opened at the front of the apparatus main body 1, it is not necessary to consider the space at the time of opening, and the recording section opening / closing section 8 itself can be enlarged. Therefore, when the recording unit opening / closing unit 8 is opened as described above, it is possible to open all the paper path paths.

Next, in the case of transmission, the user operates the device body 1
Documents are stacked on a document table 10 provided at the upper rear,
The original set position is adjusted by the original set guide 11. The document is advanced by the introduction roller 12, and the leading end of the document has a shape in which the lowest portion projects most along the traveling path formed by the document table 10 and the separation piece 13. Even if there are multiple originals,
The separation pieces 13 press the upper surfaces of the plurality of document groups, and the document feed rollers 14 rotate on the lowest surface of the document group, whereby the documents are separated and fed one by one. When the point B sensor (not shown) detects that one document is fed and fed, the rotation of the introduction roller 12 is stopped and the next document is not moved until the previous document passes the reading point. Waiting for paper feed.

The fed document is transported by the document transport roller 16 while passing through the reading point. At the reading point, the document is illuminated by the light source 17. Light reflected from the document is refracted by a mirror 18 and forms an image on a reading element 20 via a lens 19. In the reading element 20, the reflected light from the document is converted into an electric signal. Documents that have passed the reading point are sequentially discharged along a traveling path B onto a document discharge tray 21 provided on the rear surface of the apparatus main body 1.

If a paper jam occurs during the reading operation, the user first removes the recording paper discharge tray 7. Since the recording paper discharge tray is simply fitted into the groove 24, it can be easily removed simply by lifting it up.
Next, the latch 25 is released, and the reading unit opening / closing unit 22 is turned to the pivot 23.
And open it down. Since the traveling path of the reading unit is provided obliquely, both the document conveying side and the document discharging side are widely opened. That is, the traveling path B is the original feeding roller 1
4, the entire downstream side of the document feed path (downstream from the paper feed roller 14) is opened, so that the user can easily remove the document that has caused a paper jam.

Hereinafter, the reading unit in the above-described apparatus 1 will be described in more detail. FIG. 3 is a perspective view showing the appearance of the reading unit of the present invention.

In FIG. 3, the same members as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 26 denotes a reading unit. 27
Reference numeral denotes an A point sensor for detecting the presence or absence of an original and the size of the original. Reference numeral 28 denotes a B point sensor for detecting the leading end of the original fed by the original feed roller. The point B sensor indicates that the document has been fed, and
Stops at the fixed position, and waits for the start of reading the next document.

Reference numeral 29 denotes a sheet metal fixed to the reading section 26, and the original passes between the reading section 26 and the sheet metal 29. 3
Reference numeral 0 denotes a sheet feeding unit opening / closing unit provided in a central area of the sheet metal 29, to which the separating piece 13 is attached. When the paper feed unit opening / closing unit 30 is in the open position, the separation piece 13 is
The contact with is released. Reference numeral 31 denotes a document pressing piece holding member. The document pressing piece has a function of regulating the amount of a document to be inserted when a large number of document tables are set on the document table 10 and also presses the upper surface of a bundle of documents to introduce a roller. Reference numeral 12 has a function of assisting introduction of a document from a lower part.
The document pressing piece holding member 31 holds the document pressing piece.

Reference numeral 32 denotes an optical unit, which comprises the mirror 18, the lens 19, and the reading element 20 excluding the light source 17. The light source unit 32 is engaged with and held by the reading unit 26 by three points of the convex parts A, B, and C. Reference numeral 33 denotes a reading substrate on which the reading element 20 is mounted.

FIG. 4 is a sectional view showing a schematic configuration of an embodiment of the reading section of the present invention. 4, the same members as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 34 denotes the above-mentioned document pressing piece, which regulates the amount of the document introduced by the introduction roller 12 when a large number of documents are set on the document table 10. Reference numerals 35 and 36 denote separation piece pressing portions for pressing the separation piece 13 against the document feed roller 14. The separation piece pressing portion 35 applies a predetermined load to the separation piece 13 so that the separation piece 13 comes into contact with the document feed roller 14 with a constant pressure. The separation piece pressing portion 36 applies a predetermined load to the separation piece 13 similarly to the separation piece pressing portion 35, but is a separate member that is not connected to the separation piece pressing portion 35, and is conveyed. This prevents uneven feeding of the original that occurs when the rear end of the original separates from the space between the separation piece 13 and the paper feed roller 14. Reference numeral 37 denotes a rotation fulcrum of the sheet feeding unit opening / closing unit 30. In the reading unit 26, the document feed roller 14
Is provided not at the lowermost surface of the reading unit 26 but at a position higher than the lowermost surface.

Hereinafter, with respect to the reading section 26 of the present invention configured as described above, the traveling path B of the reading section 26 will be described first.

In this embodiment, the recording paper traveling path A is configured so as to extend from the bottom surface of the apparatus main body 1 to the upper surface through the front side.
Not take up much space to provide. Therefore, the traveling path B has a U-shape, and the paper jam easily occurs in the traveling path B. Even if the traveling path B is formed in a U-shape, if the radius of rotation of the original travel is increased, a paper jam is less likely to occur.
6 becomes large, and the apparatus main body 1 also becomes large.

Therefore, in the reading section 26, the sheet feeding roller 14 is provided at a high position away from the bottom surface of the reading section 26. When the paper feed roller 14 is provided at a position higher than the bottom surface of the reading unit 26, the turning radius of the original travel is increased while the original travel path is formed in a U-shape compared to the case where the paper feed roller 14 is provided at the bottom surface of the read unit 26. Can be configured as a travel path that can take a large value. Here, the turning radius means that the original runs from the platen
Paper feed angle at the time of traveling to the
Travel in an arc connecting the discharge angle
In this case, the curvature of the arc is half as a whole.
Refers to the diameter. That is, the paper feed roller 14 is
If the paper feed roller 14 is provided on the bottom surface, the position of the document table 10 must be lowered to the bottom surface of the reading unit 26. Therefore, the radius of rotation of the traveling path B is small, and the traveling path B has a U-shape having a sharp angle of rotation. On the other hand, when the paper feed roller 14 is provided at a position higher than the bottom surface of the reading unit 26, the position of the document table 10 can also be provided at a position higher than the bottom surface of the reading unit 26, and the turning radius of the traveling path B is increased. be able to. in this way,
Since the paper feed roller 14 is provided at a position higher than the bottom surface of the reading unit and the turning radius of the document traveling on the traveling path B is increased, it is possible to prevent paper jam even when the traveling path B is U-shaped. it can.

The traveling path B is not perpendicular or parallel to the bottom surface of the reading section 26 but is set obliquely. The optical unit 32 is also configured to be attached not obliquely to the bottom surface of the reading unit 26 but obliquely. Therefore, a space is formed between the optical unit 32 and the bottom surface of the reading unit 26. The rear of the lower layer portion 40 of the reading section 26 can be inclined by this space to widen the document table discharge port, so that the entire path of the document traveling path B does not contact the housing of the apparatus main body 1. Can be. As a result, the document discharge port can be widened, so that the document discharged to the rear side surface of the apparatus main body 1 can be easily taken. Further, since the rear of the optical unit 32 is obliquely lifted and disposed, the depth of the apparatus main body 1 can be made shorter than when the optical unit 32 is disposed in parallel, so that the user does not turn to the rear of the apparatus main body 1. However, the original discharged from the front of the apparatus main body 1 can be easily taken out.

Next, the reading section opening / closing section 22 and the sheet feeding section opening / closing section 30 of the reading section 26 will be described.

When a paper jam occurs, first, the recording paper discharge tray 7 is removed, and then the latch 25 is released to open the reading unit opening / closing unit 22 around the rotation shaft 23 and feed the document traveling path B. The downstream side of the paper roller 14 can be opened. When the reading unit opening / closing unit 22 is opened, the document traveling path B is approximately opened, so that the user can push his hand through the recording paper discharge port widely taken on the upper surface of the apparatus main body 1 to easily remove the paper jam document. Can be. If the separation piece 13 and the paper feed roller 14 cannot be taken out with the document sandwiched therebetween even when the reading section opening / closing section 22 is opened, the sheet feeding section opening / closing section 30 is opened around the pivot point 37 and the separation piece 13 And the paper feed roller 14 is released from the pressing relationship, and the paper jam document can be removed. As described above, the reading / opening unit 22 and the sheet feeding unit opening / closing unit 3 are not provided as a single opening / closing unit for the document conveying path.
0 is separated as a separate configuration, it is not necessary to always release the pressing relationship between the separation piece 13 and the paper feed roller 14 even when a paper jam occurs. It suffices to open it and release the pressing relationship between the separation piece 13 and the paper feed roller 14.

Accordingly, the strength of the pressing force between the original transport roller 16 and the opposing pinch roller causes
Even if a load is applied to the resin reading unit opening / closing unit 22 and the shape thereof is distorted, there is no influence on the force of the separation piece 13 pressing the paper feed roller 14, so that the opening / closing operation due to the paper jam occurs. Separation piece 13 and paper feed roller 14
Can be prevented from deteriorating the setting of the pressing relationship with and thereby reducing the sheet feeding ability. Since paper jam occurs after paper feeding, most paper jam documents can be removed by opening the transport path downstream of the document feed roller 14 in the document transport path.

The sheet feeding unit opening / closing unit 30 is provided only in the central region of the sheet metal 29 as shown in FIG. this is,
This is because the sheet supply opening / closing section 30 is provided only in an area necessary for releasing the pressing relationship between the separation piece 13 pressing the document and the sheet supply roller 14. In order to maintain a constant pressing relationship between the separating piece 13 and the feed roller 14, the separating piece 13 is provided on the sheet metal 29 itself without providing an opening / closing section, and the pressing relationship between the separating piece 13 and the feeding roller 14 is changed. Although it is better to fix the sheet, the paper jam may not be removed due to the document being sandwiched between the separation piece 13 and the paper feed roller 14, so that the pressing relationship between the separation piece 13 and the paper feed roller 14 is released. An opening is provided in the sheet metal 29 within the minimum possible range. Thus, compared to the case where the entire area of the sheet metal 29 is configured as the opening / closing section, the possibility that the adjustment of the pressing relationship between the separation piece 13 and the sheet feeding roller 14 is lost due to the opening and closing of the sheet feeding section opening / closing section 30 is reduced. be able to.

Next, the latch 25 of the reading section opening / closing section 22 will be described. Normally, the latch of the opening / closing section is provided at both ends of the side to be opened and closed because the document passes through the center,
It is not provided in the center. However, in the present embodiment, the latch 25 is provided at the center of the side of the reading unit opening / closing unit 22 on which the opening / closing is performed. This can be realized by providing the reading unit opening / closing unit 22 and the sheet feeding unit opening / closing unit 30 separately. That is, since the latch 25 attached to the reading unit opening / closing unit 22 can be engaged with a member that holds the sheet feeding unit opening / closing unit 30 in a rotatable manner, even if the latch 25 is provided at the center, Reference numeral 25 does not hinder the conveyance of the original. Further, in this manner, the latch 25 is
When the document feed roller 16 is provided at the center, the strength of the reading unit opening / closing unit 22 with respect to the force of pressing the pinch roller facing the document conveying roller 16 can be enhanced. That is, the document transport roller 1
6 and the opposing pinch roller are also used in the reading unit
The two originals are arranged on the center line through which the two originals pass. Therefore, a load due to the force of pressing the document conveying roller 16 and the opposing pinch roller to each other is applied only to the central region of the reading unit opening / closing unit 22, and the shape of the resin reading unit opening / closing unit 22 is distorted in a bow shape, and The distance between the transport roller 16 and the platen roller gradually increases. When the set pressing relationship between the document conveying roller 16 and the opposing platen roller is broken, uneven conveyance of the document is caused.

As in the present embodiment, if the latch 25 is provided only at the center, not at both ends of the open / close side of the reading / opening / closing section 22, the pinch roller facing the document conveying roller 16 only at the center is provided. Are pressed against each other, a force acting to keep the distance between the reading unit opening / closing unit 22 and the reading unit 26 constant, and the force between the reading unit opening / closing unit 22 and the reading unit 26 at both ends. Since no force acts to keep the distance constant, the shape of the reading unit opening / closing unit 22 is not distorted in a bow shape. The latch 25 is connected to the reading unit opening / closing unit 22.
By being provided on an extension of the holding position of the original document conveying roller 16, a force for mutually pressing the document conveying roller 16 and the opposing pinch roller acts, and the reading unit opening and closing unit 22 is opened.
Even when the distance between the reading unit 26 and the reading unit 26 is increased, the latch 25 is moved to the reading unit opening / closing unit 22 at the center where the force directly acts.
To keep the distance between and the reading unit 26 constant,
The strength of the reading unit opening / closing unit 22 with respect to the force of pressing the document conveying roller 16 and the pinch roller facing each other can be enhanced.

Next, referring to FIG. 5 and FIG.
The pinch roller 15 will be described.

FIG. 5 is an operation diagram showing a paper feeding state when a document is fed by the paper feed roller 14. FIG. 6 shows a document when a pinch roller 15 in contact with the paper feed roller 14 is provided. FIG. 4 is an operation diagram showing a paper feeding state of FIG.

When a document is fed, the leading end of the document travels while hitting the inside of the sheet metal 29 forming the traveling path B because the traveling path B is U-shaped. In this case, since the document is conveyed while being held at only one point sandwiched between the separation piece 13 and the paper feed roller 14, the document is separated from the separation piece 13 and the paper feed roller 14 as shown by a dotted line in FIG. May be conveyed while being tilted about one point sandwiched between them. That is,
Until the document that is being fed is held between the separation piece 13 and the feed roller 14 until it reaches the transport roller 16, only the leading edge of the document abuts on the traveling path, and the member that holds the document is Since the document does not exist, if the right and left balance is lost when the leading edge of the document hits the traveling path, the document rotates and tilts about one point sandwiched between the separation piece 13 and the paper feed roller 14.
Since the paper feed roller 14 continues to rotate, the original is conveyed while being tilted. If the document is conveyed in an inclined manner, the original is read while being obliquely inclined, resulting in a reading error.

Therefore, in the reading section 26 of the present embodiment, the pinch roller 15 is provided in contact with the paper feed roller 14 to prevent the original from being inclined and conveyed. That is, when the original is fed by the feed roller 14, the original is separated on the feed roller 14 by providing the pinch roller 15 in contact with the surface of the feed roller 14 as shown in FIG. Piece 13 and pinch roller 15
Therefore, even if the center of rotation is lost and the leading edge of the document comes into contact with the traveling path A and loses the right and left balance, the rotation is limited by the loss of the center of rotation. Thus, even when the travel path B is formed in a U-shape, it is possible to prevent the document from being transported obliquely. In addition, the central part of the original is separated
The sheet 13 is pressed against the sheet feeding roller 14.
When this pressure is released, that is,
When the minute leaves the separation piece 13 and moves forward, the pressed
The center of the leading edge of the document is opposite to the feed roller 14
You will be turning in the direction. In this state, the paper feed roller 1
When the document is going to move between 4 and the pinch roller 15,
The turned-up portion at the center of the leading edge of the original contacts the pinch roller 15.
Touch the document between the paper feed roller 14 and the pinch roller 15
Paper jams easily occur. Therefore,
As shown in FIG. 6, the pinch roller 15 has
The shape that does not touch the
La 15 does not touch the curled up part in the center of the leading edge of the document
The paper feed roller 14 and the pinch roller 15
The manuscript can enter smoothly during the
Life can be prevented.

Next, the paper feeding mechanism of the reading section 26 will be described with reference to FIG. FIG. 7A is an enlarged view showing the sheet feeding mechanism of the present embodiment in an enlarged manner, and FIG. 7B is an enlarged view showing a state in which a large number of documents are fed in FIG.

In FIG. 7, the same members as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 37 denotes a bundle of a plurality of documents set on a document table and fed. Numeral 38 denotes a convex portion for contacting the separation piece 13 with the separation piece 13 and the document table 10.
And the paper feed angle of the original is regulated. Reference numeral 39 denotes a separation piece holding member that holds the separation piece 13, and holds the separation piece 13 so as to have a space between the separation piece 13 and the separation piece 13.

First, the manuscript introduced from the manuscript table 10 is
Even when a plurality of originals are introduced, the originals are separated and fed one by one by the separation piece 13 pressing the upper surface of the original and the paper feed roller 14 rotating on the lowermost surface of the original. At this time, if the force by which the separation piece 13 presses the document is weak, the separation piece 13 itself is lifted by the document, and a plurality of documents enter between the separation piece 13 and the paper feed roller 14 to feed or feed a plurality of sheets. In order to prevent the paper from being used, a pressing member is provided to press the separation piece 13 against the paper feed roller 14 with a predetermined load. Indeed, if a pressing member for pressing the separation piece 13 against the paper feed roller 14 is provided, the separation piece 13 is pushed up by the inserted document, and a plurality of documents are placed between the separation piece 13 and the paper feed roller 14. Although it is unlikely that the pressing member is pressed, a strong pressing force different from that of the other region is applied to only one region pressed by the pressing member on the surface of the paper feed roller 14, so that the load on the rotation is increased only in that region. High torque is required. Further, since the force by which the separation piece 13 presses the paper feed roller 14 becomes weaker due to use, only the rotation of the paper feed roller 14 becomes relatively fast, and the relationship between the separation piece and the paper feed roller becomes the initial state. Since the setting is lost, there is a problem that the sheet feeding capacity is reduced.

Therefore, in this embodiment, a plurality of pressing members for pressing the separation piece 13 against the paper feed roller 14 are separately provided, and the force for pressing the surface of the paper feed roller 14 is dispersed. The load on the rotation of the motor has been reduced. That is,
By providing the separation piece pressing portions 35 and 36, which are a plurality of pressing members, as separate members, the pressing area where the separation piece 13 presses the surface of the paper feed roller 14 is substantially uniform as shown in FIG. Since the dispersion is performed, the separation piece 13 can be pressed against the paper feed roller 14 with a predetermined amount of pressing force without increasing the rotational torque of the paper feed roller 14. Further, the separation piece pressing portion 36 is provided on the downstream side of the traveling path B from the separation piece pressing portion 35 and has a function different from the separation piece pressing portion 35 in addition to the function of pressing the separation piece 13. doing. That is, in addition to the above-described function, the separating piece pressing portion 36 has a function of preventing a change in the transport speed when the trailing end of the fed document separates from the paper feed roller 14. The document is transported by a paper feed roller 14, a document transport roller 16, and two rollers. The rotation speed of the document conveying roller 16 is set to be higher than the rotation speed of the sheet feeding roller 14 so that the document does not slack between the sheet feeding roller 14 and the document conveying roller 16 on the traveling path B. Therefore, when the original is being conveyed, the original conveying roller 16 is in a state of pulling the original from the paper feed roller 14. However, when the trailing edge of the document separates from the paper feed roller 14, the document transport roller 16 is still rotating at the same rotation speed, so that the document is fed by a greater transport amount, and During transport, transport irregularities may occur, causing a reading error. In such a case, when the document separates from the paper feed roller 14, the rear end of the document is pressed against the paper feed roller 14 when the document separates from the paper feed roller 14. Even if the pressing is released, the rear end of the document is suddenly separated and the transport speed is accelerated to prevent the transport unevenness from occurring.

As described above, the separation piece 13 is
A plurality of pressing members to be pressed are provided as separate members,
Since each pressing member independently presses, the pressing force applied on the surface of the paper feed roller 14 is dispersed almost uniformly, so that a predetermined amount of load is applied without increasing the rotational torque to separate the separation piece 13. It can be pressed against the paper feed roller 14. Further, by providing one of the pressing members on the downstream side of the traveling path B on the separation piece 13, when the rear end of the document separates from the paper feed roller 14, even after the pressing of the other pressing members is released, The rear end is pressed against the paper feed roller 14, thereby preventing the document from suddenly separating from the paper feed roller 14 and accelerating the conveyance speed to prevent uneven conveyance.

Next, in the sheet feeding mechanism of the present invention, in addition to the above-described separation piece pressing portions 35 and 36, the convex portions 3 which come into contact with the separation piece 13 are provided.
8 is provided near the sheet feeding position. This is the separation piece 13
And a document 37 formed by the document 37.

That is, when there is no convex portion 38, the pressing portion 3
Even when the originals 5 and 36 are provided, when a plurality of originals are pushed in with a strong force, there is a space between the separation piece 13 and the separation piece holding member 39, so that the separation sheet 13 and the original 37 are formed. The feeding angle is widened, and the feeding angle cannot be kept constant. Further, if the space between the separation piece 13 and the separation piece holding member 39 is eliminated and the separation piece 13 is attached to the separation piece holding member 39, the paper feeding angle can be fixed, but a plurality of originals are When the document is inserted, the leading end of the document does not reach the paper feed roller 14 due to the thickness of the bundle of documents, and there is a possibility that the paper cannot be fed.

In this embodiment, the separation piece 13 is provided with a space in the separation piece holding member 39 and held, and the projection 38 contacting the separation piece 13 is provided in the separation piece holding member 39 near the sheet feeding position. Even when a plurality of originals 37 are inserted, since the convex portion 38 is in contact with the separation piece 13, the separation piece 13 is not pushed up, so that the paper feed angle can be regulated and held constant, and Since there is a space between the separation piece 13 and the separation piece holding member 39, when a plurality of originals 37 are inserted, the separation piece 13
When the document 37 is further pushed in, the convex portion 38 regulates the paper feeding angle near the paper feeding. The document can reach the sheet feeding position from the lower layer. As a result, even when the paper feed angle is regulated, it is possible to prevent the document 37 from reaching the paper feed position and not being able to feed paper.

Next, the optical unit 32 in the reading section 26 of the present invention will be described with reference to FIGS.

FIG. 8 is an enlarged perspective view showing an optical path in the optical unit 32. FIG. 9 is an enlarged perspective view showing the moving direction of the optical unit 32 when the optical unit 32 is attached to the reading unit 26.

As described above, the optical unit 32 is made of resin and includes the first mirror 18A, the second mirror 18B, the lens 19, and the reading element 20 except for the light source 17. The light source 17 is attached to a sheet metal forming a housing of the reading unit 26. When inserting the optical unit 32 into the reading section 26, as shown in FIG.
Into the convex portion A insertion portion 38 of the reading portion 26, and the convex portions B and C
Are engaged with and fixed to the convex portion B holding portion 39 and the convex portion C holding portion (not shown), respectively.

When the optical system is configured as a unit, the optical system can be assembled separately from the apparatus main body 1 and the reading section 26, and there is an advantage that the assembling work can be performed in parallel with the apparatus main body 1 and the reading section 26. is there. Thus, the operation can be confirmed separately from the apparatus main body 1 and the assembling time can be reduced. Further, replacement of a failed component and cleaning work at the time of periodic inspection are facilitated.

However, since the optical unit 32 is formed of a resin, and the resin has a low thermal conductivity, when the light source 17 is mounted inside the optical unit 32, the heat generated by the light source 17 heats the internal surface. On the other hand, the outside surface is kept at a normal temperature, and the temperature difference causes the optical unit 32
The shape was distorted. As a result, the mounting angles of the mirrors 18A and 18B mounted in the optical unit 32 change, and there is a possibility that a problem arises in that the lens imaging position on the imaging surface of the reading element shifts.

Therefore, the optical unit 32 of this embodiment is
The light source 17 is not an element of the optical unit 32 and the mirror 18
A, 18B, lens 19, and reading element 20 are configured as elements. With this configuration, since the light source 17 is provided separately from the inside of the optical unit 32, the light source 17
Is less affected by the heat generated by the optical unit 32. Further, when the light source 17 is attached to a sheet metal forming the housing of the reading unit 26, the sheet metal has a high thermal conductivity,
Since the heat generated by the light source 17 is absorbed, the optical unit 32
The effect on the power is further reduced.

However, when the optical unit 32 is inserted into the reading section 26, the light source 17 is arranged near the reading point and the optical unit 32 is also arranged near the reading point in order to irradiate the original. Inevitably, the positional relationship between the optical unit 17 and the optical unit 32 is in close proximity. Even if the influence of the light source 17 is reduced, the positional accuracy of the mirrors 18A and 18B, the lens 19, and the reading element 20 is delicate. However, the adverse effect on the reading operation has not been completely eliminated.

Therefore, in this embodiment, the first mirror 18A
Is attached to the rear end of the optical unit 32, which is located farthest from the reading point in the optical unit 32, not near the reading point. Thereby, as shown in FIG.
The optical unit 32 can have a shape that narrows from the rear end to the front end as it approaches the reading point.
7 can be reduced in area exposed to heat.

That is, when the first mirror 18A is disposed near the reading point, the first mirror 18A must have substantially the same length as the reading width, so that the optical unit 32 having the first mirror 18A therein is used. The length on the reading point side also has at least the length of the reading width. If the length of the optical unit 32 on the reading point side is long, the area exposed to the heat of the light source 17 increases, and the optical unit 32 is easily affected by the heat of the light source 17. However, as shown in FIG.
2, the length of the optical unit 32 on the reading point side can be shortened.

As described above, since the first mirror 18A is provided at a position distant from the reading point and the length of the optical unit 32 on the reading point side is shortened, the area of the light source 17 directly receiving heat is reduced. The influence on the optical unit 32 caused by the heat generated by the light source 17 can be reduced.
Further, when the optical unit 32 is configured by disposing the first mirror 18A at a position distant from the reading point, compared with the case where the optical unit 32 is configured by disposing the first mirror 18A near the reading point, Since the length of the optical unit 32 can be reduced, the size of the optical unit 32 can be reduced.

The optical unit 32 of this embodiment has three
The reading unit 26 is configured to be held by the point, the convex portion A, the convex portion B, and the convex portion C. This is to remove the adverse effects of unitizing the optical system. That is, when the optical system is integrated with the reading unit 26 without being unitized, only the optical system does not shift from the reading unit 26 because the optical system is integrated with the reading unit 26. However, when the optical system is configured as a unit separate from the reading unit 26,
Even if the optical unit 32 is attached to the reading unit 26, since the optical unit 32 is a separate member, the optical unit 32 moves in a gap between the reading unit 26 and the reading position may be displaced from the optical system.

In particular, in the configuration in which the document conveying path of the reading section 26 is provided obliquely and the optical unit 32 is inserted obliquely as in the present embodiment, the optical unit 32 is inserted more obliquely than the case where the optical unit 32 is inserted in parallel. The unit 32 becomes easy to move in the gap with the reading unit 26. Thus, the optical unit 32
Moves inside the reading unit 26, which has an adverse effect on the reading operation.

Therefore, three projections are provided on the optical unit 32, and the optical unit 32 is held on the reading unit 26 by these three points. Particularly, among the three convex portions, the convex portion A is provided at the center on the reading point side, and the other convex portions B and C are provided on the side surfaces.

Of the three projections, only the projection A is provided at the center of the optical unit 32 on the reading point side.
This is because the influence on the reading operation can be reduced even if 2 moves in the reading unit 26 for some reason. In other words, when the convex portion A of the optical unit 32 is inserted into the convex portion A insertion portion 38 of the reading unit 26, even if the optical unit 32 moves, there is no displacement right or left or up and down near the reading point. As shown in the figure, since the rotation is performed around the convex portion A, the most serious deviation in the vicinity of the reading point in the reading operation is limited. Assuming that the reading point side of the optical unit 32 is the front end, the rear end of the optical unit 32 is
Are moved left and right or up and down by rotation around the center, but the convex portions B and C are
9. The movement of the rear end of the optical unit 32 can be restricted by engaging with the convex portion C holding portion. If the movement of the rear end of the optical unit 32 is restricted, the rotation width of the front end of the optical unit 32 about the projection A is also restricted. Thus, even when the optical system is configured as the optical unit 32 separate from the reading unit 26, the optical unit 32 is prevented from moving in the reading unit 26 for some reason, and adverse effects on the reading operation are prevented. Can be prevented.

As described above, the present invention is configured such that the recording paper is discharged from the lower portion of the apparatus main body 1 upward through the front side of the apparatus main body 1 to the recording paper discharge port provided on the upper surface. As a result, the recording paper is discharged onto the upper surface of the apparatus main body 1, so that even if the user is at a position distant from the apparatus main body 1, it is possible to easily confirm whether or not the user has received the data. Since the recording unit opening / closing unit 8 is provided on the front side of the apparatus main body 1, the recording unit opening / closing unit 8 can be opened / closed on the front side of the apparatus main body 1, so that the user can perform maintenance when a paper jam or the like of recording paper occurs. Can be performed quickly and easily.

Also, due to the space limitation in which the recording paper traveling path A is set, the document traveling path B is formed in a U-shape behind the apparatus main body 1. First, the traveling path is provided diagonally. Secondly, by providing the optical path of the optical system obliquely, and thirdly, by providing the pinch roller 15 which is in contact with the surface of the paper feed roller 14, fourthly, the separation piece 1
By separately providing the opening / closing section 30 for holding the document feed roller 3 and the opening / closing section 22 for holding the document feed roller 16, even when the running path B is formed in a U-shape, a running path in which paper jam of the document hardly occurs is realized. Therefore, even when a paper jam occurs, the user can quickly and easily perform maintenance.

[0083]

As is apparent from the above description, the present invention firstly discharges the recording paper into the concave portion provided on the upper surface of the apparatus.
By doing so, the discharged recording paper appears on the top of the device.
Will be. This allows the user to move away from the device.
Even if you are in a place, do not approach the device
It is possible to immediately confirm that there has been reception. Further
To be rotatable along a U-shaped travel path for transporting originals
The provided opening / closing part is configured to open toward the recess.
The opening of the recording paper discharge unit and the opening / closing unit of the recording unit
Can be shared in a common space. This
As a result, if a paper jam occurs in the reading unit,
When the opening / closing section is opened, the original
It is possible to open the travel path of the draft to a large space,
The user can easily reach into the paper that caused the paper jam.
Can be removed.

Second, a U-shaped traveling path for transporting the original
Dispose the document at an angle to the bottom of the
An opening / closing section for removal is provided rotatably along the traveling path.
As a result, when a paper jam occurs, the traveling path becomes U-shaped.
If the travel path space occupied by the device is reduced
Also, the traveling path is provided at an angle to the bottom of the reader.
Therefore, when the opening / closing part is opened, the traveling path and the bottom of the reading device
A wide space is created between This makes it easier for users
To remove paper jammed documents.
You.

Third, a document is fed to a U-shaped travel path.
Separation pieces that separate documents one by one on the surface of the paper feed roller
And do not touch the paper feed roller at the center.
Shape pinch roller downstream of the separation piece in the transport direction
Paper feed row with a width wider than the separation
The original is separated into separate pieces.
Because the document is pressed against the paper feed roller with stronger force,
If the tip of
The center of the leading edge of the original that was in contact with the separation
Will be turned in the opposite direction to the paper feed roller.
Even in this case, the center of the pinch roller
The pinch roller is at the center of the leading edge of the document.
Do not touch the part, advance the document with the paper feed roller
Will be. As a result, the front edge of the original is turned up
Paper jam easily occurs due to contact between the part and the pinch roller
Can be prevented. In addition,
Place the manuscript on the paper feed roller and the pinch roller
Because the document is held at multiple points with the contact point,
The center of rotation when rotating is lost, and the original is U-shaped.
While moving along the traveling path, the leading edge of the document
Rotate around one point even if you lose balance
The rotation of the original is restricted.
You. As a result, the original is rotated and conveyed obliquely, and is read obliquely.
Can be prevented from being taken.

Fourth, the travel path is curved to reduce the size of the device.
And a part of the traveling width of the traveling path,
An opening is provided to expose the area around the
The separation piece is held by the opening and closing part that rotatably covers the opening of
By opening the opening / closing section, the pushing between the paper feed roller and the separation piece is performed.
By releasing the pressure, the separation piece
Open and close the minimum range that can release the pressing relationship with the
Can be. This allows separation if a jam occurs
Release the pressing relationship between the sheet and the feed roller and remove the original.
And open the entire travel width of the travel path.
Compared to the configuration with a closed part, the separation
It is possible to maintain a constant pressing relationship with the rubber.

Fifth, a paper feed roller for feeding a document and
A separation piece that comes into contact with the paper feed roller and separates the documents one by one
A first opening / closing unit for releasing the pressing relationship,
Rollers that transport these documents past the reading point
Push the paper with a pinch roller that transports the document
Separately configuring the second opening / closing unit for releasing the pressure relationship
When the document is jammed,
Since the pressing relationship with the direction roller can be released, the second opening / closing section
Just remove the original by opening the
You can remove the manuscript. Also, open the second opening / closing part.
The first opening / closing part can be kept closed when
The paper feed roller and separation piece
Is not released. As a result,
Pressing the paper feed roller and separating piece by opening the closing part
Frequently breaks the relationship and separates it from the feed roller
Prevents the pressing relationship with the piece from collapsing and the paper feeding capacity from lowering
can do.

Sixth, a paper feed roller for feeding a document and this roller
A separation piece that comes into contact with the paper feed roller and separates documents one by one
A first opening / closing unit for releasing the pressing relationship,
Rollers that transport these documents past the reading point
A pinch roller that conveys the document that is provided facing the conveyance roller
And a second opening / closing part for releasing the pressing relationship with the
And a pinch roller of the second opening / closing section is arranged.
By providing a latch on the center line
The force of pressing the opposing pinch rollers against each other increases the second opening.
Even when the closing part is pressed in the opening direction,
In the middle, the latch places the second opening / closing part in the closed position
Will be held. As a result, the second opening / closing section can be bowed.
The second opening / closing part is constant in the closed position without distortion
It can be held at intervals.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a facsimile apparatus of the present invention.

FIG. 2 is a sectional view showing a schematic configuration of a facsimile apparatus according to one embodiment of the present invention.

FIG. 3 is a perspective view showing the appearance of a reading unit according to the present invention.

FIG. 4 is a cross-sectional view illustrating a schematic configuration of an embodiment of a reading unit according to the present invention.

FIG. 5 is an operation diagram showing a paper supply state when a document is supplied.

FIG. 6 is an operation diagram showing a document feeding state when a pinch roller in contact with a sheet feeding roller is provided.

FIG. 7A is an enlarged view illustrating a sheet feeding mechanism in a reading unit of the present embodiment in an enlarged manner. FIG. 7B is an enlarged view illustrating a state in which a large number of documents are fed in FIG.

FIG. 8 is an enlarged perspective view showing an optical path in the optical unit of the present invention.

FIG. 9 is an enlarged perspective view showing the moving direction of the optical unit when the optical unit according to the present invention is attached to the reading unit.

FIG. 10 is a sectional view showing a schematic configuration of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Paper feed cassette 7 Recording paper discharge tray 8 Recording part opening / closing part 10 Document table 21 Document discharge tray 22 Reading part opening / closing part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-317937 (JP, A) JP-A-56-155132 (JP, A) JP-A-5-53347 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) B65H 5/06 B65H 1/00-3/68 H04N 1/00 H04N 1/00 108

Claims (6)

(57) [Claims] 1. A recording sheet is discharged into a concave portion provided on the upper surface of the apparatus.
Recording section, a U-shaped running path
Provided rotatably along the travel path and opens toward the recess
A facsimile machine comprising: a reading unit having an opening and closing unit . 2. A full equipped with reader arranged obliquely with respect to the bottom surface of the U-shaped travel path of conveying the original, and a closing part which is held so as to be provided rotated along said running path <br/> A facsimile machine. 3. A curved travel path, a paper feed roller for feeding a document to the travel path, a separation piece which abuts the paper feed roller and separates the documents one by one, and a center. Section is the feeder
The paper feed roller has a shape that does not contact the roller and has a width wider than the separation piece downstream of the separation piece in the transport direction .
Facsimile machine having a pinch roller for contacting a roller. 4. A traveling path having a curved shape and the traveling path.
The paper feed roller that feeds the original and the paper feed roller
Separation pieces for separating documents one by one, and travel width of the travel path
And a region around the position of the paper feed roller.
An opening to be exposed;
Pressing the paper feed roller and the separation piece while holding the separation piece
Facsimile machine having an opening / closing unit for canceling the operation. 5. A curved travel path, a paper feed roller for feeding a document to the travel path, a separation piece that abuts on the paper feed roller and separates the documents one by one; A transport roller that transports the paper document past the reading point, and a transport roller
And a pinch roller for transporting the document across the said travel path
A first opening / closing unit provided along the first area for holding the separation piece and releasing the pressing between the paper feed roller and the separation piece, and provided along a second area on the travel path. factory <br/> Shimiri device and a second opening and closing part for releasing the pressing between the conveying roller and the pinch roller holds the pinch roller. 6. A curved travel path, a paper feed roller for feeding a document to the travel path, a separating piece that abuts the paper feed roller and separates the documents one by one; A transport roller that transports the paper document past the reading point, and a transport roller
And a pinch roller for transporting the document across the said travel path
A first opening / closing unit provided along the first area for holding the separation piece and releasing the pressing between the paper feed roller and the separation piece, and provided along a second area on the travel path. A second opening / closing section that holds the pinch roller and releases the pressing between the transport roller and the pinch roller; and a second opening / closing section of the second opening / closing section on a center line where the pinch roller is arranged .
And a latch for holding the opening / closing portion of the facsimile in a closed position.