JP2003054781A - Feeder, image forming device and recording device provided with the feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeder capable of stably feeding paper regardless of stiffness of a sheet, and an image forming device and a recording device provided with the same. SOLUTION: The sheet S fed out by a sheet feeding means 3 is abutted on a separation plate 4 to be separated. A high frictional member 13a selectively movable between a contact position with the sheet S fed out by the sheet feeding means 3 and a non-contact position is mounted at a downstream side in the sheet feeding-out direction of the separation plate 4, and the high-frictional member 13a is selectively moved to the abutting position on the sheet S or the non-abutting position in accordance with the stiffness of the sheet S.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding apparatus, an image forming apparatus and a recording apparatus including the sheet feeding apparatus, and more particularly, to a structure of a separating unit for separating sheets one by one.

[0002]

2. Description of the Related Art A conventional image forming apparatus and recording apparatus are
A sheet feeding device for feeding sheets to the image forming unit or the recording unit is provided, and as such a sheet feeding device, for example, FIG.
1, the paper feed tray 49 and the paper feed tray 49
A sheet stacking plate 50, which is a sheet stacking member rotatably provided around a rotary shaft 50a, and a paper feed tray 49.
And a sheet feeding roller 51 provided above the sheet placing plate 50, and the sheet placing plate 50 is biased upward by a compression spring (not shown) to feed the sheet S placed on the sheet placing plate 50 to the sheet feeding roller 51. There is one that is pressed against and fed.

The sheet S sent out by the sheet feeding roller 51 is separated by coming over the sheet while coming into contact with the separating plate 53 whose tip is inclined. Further, by providing the high friction member 54 on the downstream side of the separation plate 53, the separation performance is further improved.

[0004]

However, in the conventional sheet feeding device using such a separating method, for example, when separating a sheet having high rigidity such as a thick sheet, the separating plate 53 or the high friction member is used. The conveyance load when getting over 54 is large, and it tends to cause a paper feed failure.

Therefore, the separating plate 53 is provided so as to eliminate the paper feeding failure.
When the sheet having a low rigidity such as a thin sheet is fed by loosening the inclination of the sheet to reduce the conveying load, the sheet S easily gets over the separating plate 53, and thus a plurality of sheets are easily conveyed at the same time. It causes double feed.

Therefore, the present invention has been made in view of such a situation as described above, and it is possible to stably feed a sheet regardless of the rigidity of the sheet, an image forming apparatus and a recording apparatus including the same. It is intended to provide.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a sheet feeding device in which a sheet stacked in a sheet storage means is fed out by a sheet feeding means and abutted against the sheet fed out by the sheet feeding means. A separation plate for separating the sheet, and a position provided on the downstream side of the separation plate in the sheet feeding direction, and a position for abutting or non-abutting position on the sheet fed by the sheet feeding means according to the rigidity of the sheet. And a high-friction member that can be moved mechanically.

Further, the present invention is characterized in that the high friction member is provided slidably in a vertical direction on a downstream side wall of the sheet storing means in the sheet feeding direction.

Further, according to the present invention, the separating plate is rotatably provided above an end of a side of the sheet storing means in a sheet feeding direction.
Further, it is characterized in that it is held so as to always come into contact with the sheet fed by the sheet feeding means at a constant position and is biased by a biasing member in a direction opposite to the sheet feeding direction.

Further, according to the present invention, the separation plate rotates when it comes into contact with the sheet, and the angle at the time of the rotation is different from that when the high friction member is in the position where it comes into contact with the sheet. It is characterized in that it is configured differently from the case of being in the contact position.

Further, according to the present invention, the high friction member is provided integrally with the separation plate, and when the separation plate comes into contact with the sheet and rotates to a predetermined angle, the high friction member moves to the non-contact position. It is characterized by doing.

Further, according to the present invention, in an image forming apparatus including an image forming section and a sheet feeding apparatus for feeding a sheet to the image forming section, the sheet feeding apparatus is any one of the above. It is what

Further, according to the present invention, in the sheet feeding device in which the sheets stacked in the sheet storing means are fed out by the sheet feeding means, the sheets fed by the sheet feeding means are contacted to separate the sheets. It is characterized by comprising a separating plate and a means for movably attaching a high friction member that comes into contact with the sheet fed by the sheet feeding means according to the rigidity of the sheet.

Further, the present invention is characterized in that the high-friction member is movably provided on a surface of the separation plate from a notch portion provided in the separation plate.

Further, the present invention is characterized in that the separation plate is movably provided, and the high friction member is movably provided on the surface of the separation plate by the movement of the separation plate. is there.

According to the present invention, the separation plate is movably provided, and the high friction member is movably provided on the surface of the separation plate by the movement of the separation plate so that the high friction member can contact the sheet. It is characterized by being.

Further, according to the present invention, in a recording apparatus provided with a recording section and a sheet feeding apparatus for feeding a sheet to the recording section, the sheet feeding apparatus is any one of the above. Is.

Further, according to the present invention, a separation plate that comes into contact with a sheet sent out by the sheet feeding means to separate the sheet and a sheet sent out by the sheet feeding means according to the rigidity of the sheet comes into contact. A high-friction member movably attached to the sheet, recording means for recording the sheet separated by the separating plate, and means for conveying the sheet recorded by the recording means. Is.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing a schematic construction of an ink jet printer which is an example of a recording apparatus provided with a sheet feeding device according to a first embodiment of the present invention.

In the figure, reference numeral 200 is an ink jet printer, and this ink jet printer 200 is
A sheet feeding unit that separates and feeds the recording unit 201 and the sheets S one by one to the recording unit 201, and also feeds, for example, the sheet feeding tray 2 and the sheets stacked and accommodated in the sheet feeding tray 2 as sheet storing means. As a means, for example, a paper feed roller 3 and a paper feed device 15 having a separation guide 4 which is a separation plate for separating the sheet S sent by the paper feed roller 3 are provided.

Here, the recording unit 201 is arranged side by side in the sheet conveying direction indicated by an arrow, and the head row 204 in which a large number of ink jet heads 204a are arranged in the direction orthogonal to the sheet conveying direction and the paper feeding device 15. The conveyance belt 213 is provided for placing the conveyed sheet S and passing it under the head row 204.

The conveyor belt 213 is connected to the drive shaft 2
12, the driven pulley 215, and the drive pulley 220, and the drive pulley 220 is driven to rotate by the drive motor 219 to make a circular movement in the sheet conveying direction.

The sheet conveyed by the sheet feeding device 15 is next subjected to a skew feeding correction unit 20 for correcting skew feeding of the transported sheet.
After passing through the sheet 6, the sheet passes through a curling unit 207 that curls the sheet and is conveyed to the recording unit 201. next,
The image recording operation of the inkjet printer 200 configured as described above will be described.

When the sheet feeding operation is started, the uppermost sheet S1 of the sheets S stored in the sheet feeding tray 2 detachably attached to the ink jet printer 200 is first fed out by the sheet feeding roller 3. , 1 by separation guide 4
Separated one by one. After that, the sheets S1 separated one by one are skew-corrected by the skew correction unit 206, curled by the curl unit 207, and conveyed to the recording unit 201.

Next, the sheet S conveyed to the recording unit 201 in this manner is placed on the conveyor belt while being pressed by the front pinch roller 216, the pinch roller 217 and the spur unit 214, and the conveyor belt is conveyed. The orbiting motion of 213 passes below each head row 204.

When the sheet S1 passes under each head row 204 in this way, a control device (not shown) controls the ink jet heads 204a of each head row 204 to cause the ink to protrude, so that the surface of the sheet S1 is exposed. Record the image. After the image is recorded on the surface of the sheet S1 in this manner, the sheet S1 is moved to the apparatus main body 20 by the paper ejection spur 218.
The paper is discharged onto the paper discharge tray 221 provided on the side wall surface of 0A.

By the way, FIG. 2 is a diagram showing the construction of the sheet feeding device 15. As shown in FIG. 2, the sheet feeding device 15 includes the sheet feeding tray 2, the sheet feeding roller 3, the separation guide 4, and the sheet feeding tray. Two
For example, an elevating mechanism 12 is provided as a sheet stacking plate 11 that is a sheet stacking member that is vertically movable and a sheet stacking member elevating unit that elevates the sheet stacking plate 11.

Here, the elevating mechanism 12 includes the first and second frames 11 projectingly provided on the lower surface of the sheet placing plate 11.
a and 11b, and third and fourth frames 1a and 1b, which project from the bottom surface of the paper feed tray 2 and are parallel to the first and second frames 11a and 11b, and which intersect at the center, have the same length. At least a pair of link mechanisms 14 including the first and second tray arms 5 and 6 are provided.

It should be noted that one end 6a of the second tray arm 6 is rotatably supported by the first frame 11a, and the other end 6b is provided at the other end 6b via a shaft (not shown) protruding from the fourth frame 1.
While being slidably held in a slide groove 1c formed in b, one end 5a of the first tray arm 5 is rotatably supported by the third frame 1a, and the other end 5b is projectingly provided at the other end 5b. It is slidably held in a slide groove 11c formed in the second frame 11b via a shaft (not shown).

By the way, in the present embodiment, the link mechanism 14 having such a structure is provided at both ends in the sheet width direction between the sheet feeding tray 2 and the sheet placing plate 11 as shown in FIG. It is provided.

The pair of link mechanisms 14 are connected by a shaft (hereinafter referred to as a through shaft) 8 which is a connecting member penetrating the rotation centers of the first and second tray arms 5 and 6, and a tray cam 9 is provided. When the penetrating shaft 8 is moved in the vertical direction by rotating, the first and second tray arms 5 and 6 rotate while sliding in the lateral direction along the slide grooves 1c and 11c, respectively. The mounting plate 11 is configured to move up and down while maintaining a horizontal (or substantially horizontal) state.

In FIG. 2, 7 is provided on each of the pair of link mechanisms 14, and the sheet placing plate 11 is provided.
The sheet placing plate 11 is always biased upward by the compression spring 7.

Further, the elevating mechanism 12 is provided with, for example, a tray cam 9 as a moving means for moving the penetrating shaft 8 of the first and second tray arms 5 and 6 in the vertical direction. Then, by rotating the tray cam 9, the penetrating shaft 8 can be moved in the vertical direction, and by moving the penetrating shaft 8 in the vertical direction in this manner, the link mechanism 1
4 allows the sheet mounting plate 11 to move up and down while maintaining the horizontal state.

The tray cam 9 rotates in synchronization with the paper feed roller 3 by a drive system (not shown), and rotates once when the paper feed roller 3 makes one rotation. In addition,
The tray cam 9 is in the position shown in FIG. 4 until the sheet feeding operation is started. When the tray cam 9 is located at this position, the tray cam 9 pushes down the penetrating shaft 8 and the compression spring 7 is pressed.
Is compressed, and the sheet placing plate 11 is lowered while maintaining the parallel state. At this time, the paper feed roller 3
The sheet S is separated from. In this state, by stacking the sheets S, the sheets S can be easily stored.

On the other hand, when the paper feed roller 3 rotates, the tray cam 9 rotates in conjunction with this, and the penetrating shaft 8 is released from the tray cam 9, so that the sheet mounting plate 11 causes the compression spring 7 to move.
As a result, the sheet is raised to the position where the sheet can be delivered, and the sheet feeding roller 3 and the sheet S come into contact with each other as shown in FIG.
When the paper feed roller 3 further sends out the sheet S and then the paper feed roller 3 further rotates, the tray cam 9 pushes down the penetrating shaft 8 again at a predetermined timing, and the sheet placing plate 11 descends. Has become.

By the way, as shown in FIG. 2 or FIG. 4, the separation guide 4 for separating the uppermost sheet S1 by abutting on the sheet S sent out by the sheet feeding roller 3 is the sheet feeding tray 2 as shown in FIG.
It is rotatably held by the rotating shaft 4a at the upper end of the sheet, and is urged in the direction opposite to the sheet feeding direction by, for example, a separation guide spring 10 as urging means.

Here, the separation guide 4 has a gentle inclination so that the sheet can be reliably separated and fed when the sheet having high rigidity is fed. Note that the paper feed tray 2 is provided with a stopper (not shown) that defines the movable range of the inclination so that the separation guide 4 is held at a position where it abuts the fed sheet at a predetermined angle. Has become.

On the other hand, a separation pad 13a, which has a high friction surface on the downstream side of the separation guide 4 and constitutes a separation portion together with the separation guide 4, is attached to the upper end portion of the high friction holding member 13. There is.

The high friction holding member 13 is provided so as to be vertically slidable along the side wall surface 2a of the paper feed tray 2. When the high friction holding member 13 is slid upward, it will be described later. When the separation guide 4 is inclined by being pressed by the sheet, the separation pad 13a is projected from the notch 4b formed in the separation guide 4 onto the sheet contact surface of the separation guide 4 as shown in FIG. It has become.

FIG. 5 shows the state of the separating portion when a sheet having a large rigidity such as a thick sheet is being fed. The sheet S having such a large rigidity is attached to the separation guide 4 by the sheet S.
Separation is possible by abutting the tips of. This is because such a sheet S has a heavy self-weight per sheet and is easily separated only by creating a trigger for separation. In this embodiment, a thick sheet has a thickness of 3
A sheet having a rigidity of about 00 microns and a large rigidity is a special paper such as a sticker paper.

Since the tip is brought into contact with the separation guide 4 as described above, the separation can be performed. Therefore, when feeding a sheet having high rigidity, the sheet can be separated without using the separation pad 13a. it can. That is, when the sheet S sent out by the paper feed roller 3 is brought into contact with the separation guide 4 and the sheet S is further sent out, the separation guide 4 is pressed by the sheet S and falls horizontally while resisting the separation guide spring 10. In this way, the sheet S is separated by the separation slope formed by the sheet contact surface of the separation guide 4 tilted by the sheet S in this manner.

On the other hand, when the leading end of the sheet S passes through the separation guide 4 after the separation guide 4 is inclined by being pressed by the sheet S as described above, the separation guide spring 10 biases the separation guide 4 to a predetermined angle. Try to return to. Then, when the separation guide 4 tries to return to the predetermined angle in this way, the separation guide 4 collides with the leading ends of the second and subsequent sheets fed to the first sheet S.

Here, since the second and subsequent sheets are not in direct contact with the paper feed roller 3, it is not possible to obtain the feeding force for overcoming the separation guide 4, so that the separation guide 4 cannot be overridden. As a result, the sheet is pushed back to the separation guide 4 and stacked on the sheet placing plate 11.

On the other hand, when feeding a sheet having a low rigidity such as a thin sheet, it becomes impossible to separate the sheet if the separation guide 4 has a gentle inclination. , The high friction holding member 13 is slid upward as shown in FIG.
A is moved from a non-contact position where it does not contact the sheet to a position where it can contact the sheet.

When the high friction holding member 13 is slid upward as described above, the separation guide 4 is pressed by the sheet S sent out by the sheet feeding roller 3 and is then moved to the position shown in FIG.
When it falls down in the horizontal direction, the separation pad 13a comes to project from the sheet contact surface. Here, when the separation pad 13a projects from the sheet contact surface in this way,
The sheet S comes into contact with the separation pad 13a, and as a result, the sheet S is separated by the separation pad 13a.

After the separation guide 4 is inclined in this way, the separation guide 4 is biased by the separation guide spring 10.
Tries to return to a predetermined angle, it will collide with the leading ends of the second and subsequent sheets fed to the first sheet S. Here, since the second and subsequent sheets are not in direct contact with the paper feed roller 3, it is not possible to obtain the feeding force for overcoming the separation guide 4, so that the separation guide 4 cannot be overridden and the separation guide 4 cannot be passed over. Then, the sheet is pushed back to 4, and is stacked on the sheet placing plate 11.

As described above, the separation pad 13a that is selectively movable is provided at the downstream side of the separation guide 4 in the sheet feeding direction, and the separation pad 13a can be selectively brought into contact with or not in contact with the sheet S fed by the sheet feeding roller 3. By selectively moving the separation pad 13a to a position where it comes into contact with the sheet S or a non-contact position according to the rigidity of the sheet S, the sheet S can be separated regardless of the rigidity of the sheet S, Stable paper feeding can be performed.

The larger the inclination angle α of the separation guide 4 is, the more the separation performance of the sheet S is improved. Therefore, when the separation pad 13a is exposed on the sheet passing surface as shown in FIG. 7B, when the separation guide 4 is tilted (rotated) to a predetermined angle by being pressed by the fed sheet S, separation is performed. The part 4b of the guide 4 may be brought into contact with the high friction holding member 13 to regulate the angle at which the separation guide 4 inclines. With such a configuration, α <α2, that is, the inclination angle can be increased, and the separation performance of the sheet S can be improved.

Further, the separation pad 13a may be moved in and out manually by a user, or may be automatically moved in and out by providing a driving system.

Next, a second embodiment of the present invention will be described.

FIG. 8 is a side sectional view of the separation part according to the present embodiment. In the figure, reference numeral 40 denotes a separation guide, and the separation guide 40 is rotatably held in the paper feed tray about a rotation center 40a located at the upper end of a paper feed tray (not shown), and urging means. The separation guide spring 41 is urging the sheet in the direction opposite to the sheet feeding direction.

The separation guide 40 is held by a stopper (not shown) at a position where it comes into contact with the fed sheet at a predetermined angle. The separation guide 40 has a separation pad 42a having a high friction surface.
Is a rotation center 40 provided on the downstream side of the separation guide 40.
High friction holding member 4 held rotatably around b
It is attached via 2.

Here, the separation pad 42a is separated from the notch (see FIG. 3) of the separation guide 40.
It is provided so as to project in and out with respect to the sheet passing surface, and rotates together with the high friction holding member 42 around the rotation center 40a as the separation guide 40 rotates.

On the other hand, a holding member stopper 43 is provided below the high friction holding member 42, and when the high friction holding member 42 rotates by the rotation of the separation guide 40, the contact portion of the high friction holding member 42. 42b is adapted to slide along the holding member stopper 43.

The holding member stopper 43 has an arc shape centering on the rotation center 40a, and therefore, regardless of the position of the separation guide 40, the holding member stopper 43 and the high friction holding member 42 are provided. The high friction holding member 42 is fixed so as not to rotate about the rotation center 40b.

Further, the holding member stopper 43 is provided with a stopper release hole 43a. And the separation guide 4
When 0 rotates to reach a predetermined angle, the high friction holding member 4
The second contact portion 42b comes to face the stopper release hole 43a, and as a result, the high friction holding member 42 is rotated about the rotation center 40b.
It is designed to be inserted into the stopper release hole 43a by its own weight around the center.

When the sheet is fed out by the sheet feeding roller in the separating section thus constructed, the leading end of the sheet contacts the separation guide 40 and the separation guide 40 is inclined. At this time, since the separation guide 40 is biased by the separation guide spring 41 in the direction opposite to the sheet feeding direction, the separation guide 40 tilts until the fed sheet buckles.

Since the buckling force of the sheet is determined by the rigidity of the sheet, when the sheet S1 having a low rigidity such as a thin sheet is fed, the separation guide 40 is inclined too much as shown in FIG. Since the sheet S1 is conveyed without any problem, the sheet S1 is separated by the separation pad 42a protruding from the sheet passing surface of the separation guide 40.

On the other hand, a highly rigid sheet S such as a thick sheet
In the case of 2, since the separation guide 40 is largely inclined as shown in FIG. 10, the contact portion 42b of the high friction holding member 42 enters the stopper release hole 43a, and as a result, the separation pad 42a is retracted from the sheet passing surface. The sheet S2 is conveyed in this state.

Then, when the separation pad 42a is retracted from the sheet passing surface in this manner, the sheet S2 is separated by the separation slope formed by the sheet contact surface of the separation guide 40 which is tilted by the sheet S2.

After the sheet S2 is separated in this way, when the separation guide 40 returns to the original position by the separation guide spring 41, the contact portion 42b of the high friction holding member 42.
Comes out of the stopper release hole 43a, and the separation pad 42a is exposed again on the sheet passing surface.

In the above description, the ink jet printer which is an example of the recording apparatus has been described, but the present invention is not limited to this, and can be applied to an image forming apparatus having an image forming unit. Needless to say.

[0064]

As described above, according to the present invention, the separation plate for separating sheets is selectively placed at a position abutting or non-abutting on the sheet fed by the sheet feeding means downstream of the separating plate in the sheet feeding direction. A movable high-friction member is provided in the seat, and the high-friction member is selectively moved to a position where it abuts against the sheet or a non-contact position according to the rigidity of the seat, so that the seat does not depend on the rigidity of the seat. Can be separated, and stable paper feeding can be performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of an inkjet printer which is an example of a recording apparatus including a sheet feeding device according to a first embodiment of the invention.

FIG. 2 is a side sectional view showing the configuration of the paper feeding device.

FIG. 3 is a plan view showing the configuration of the paper feeding device.

FIG. 4 is a diagram showing a state before the paper feeding operation of the paper feeding device is started.

FIG. 5 is a diagram illustrating a state in which a sheet having high rigidity in a separating unit provided in the sheet feeding device is being fed.

FIG. 6 is a diagram showing a state in which a sheet having a separation unit with low rigidity is being fed.

FIG. 7 is a diagram showing a state in which the separation guide is pressed by the sheet and the separation pad projects from the sheet contact surface.

FIG. 8 is a side sectional view of a separation unit of a paper feeding device according to a second embodiment of the invention.

FIG. 9 is a side view showing a state where a thin sheet or a sheet having low rigidity is fed by the sheet feeding device.

FIG. 10 is a side view showing a state where a thick sheet or a sheet having high rigidity is fed by the sheet feeding device.

FIG. 11 is a diagram illustrating a configuration of a conventional paper feeding device.

[Explanation of symbols]

2 paper tray 3 paper feed rollers 4 Separation guide 10 Separation guide spring 13 High friction holding member 13a separation pad 15 Paper feeder 40 Separation Guide 41 Separation guide spring 42a Separation pad 43 Holding member stopper 200 inkjet printer 201 recording section S sheet

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Claims (12)

[Claims] 1. A sheet feeding device in which a sheet stacked in a sheet storage means is fed out by a sheet feeding means, and a separation plate which abuts the sheet fed out by the sheet feeding means and separates the sheet. A high-friction member that is provided on the downstream side of the separating plate in the sheet feeding direction and that can be selectively moved to a position in which the sheet is fed by the sheet feeding means or in a non-contact position in accordance with the rigidity of the sheet. And a paper feeding device. 2. The sheet feeding device according to claim 1, wherein the high-friction member is provided on a downstream side wall of the sheet storage means in a sheet feeding direction so as to be vertically slidable. 3. The separation plate is held rotatably above the end of the sheet storage means on the side in the sheet feeding direction, and is held so as to always come into contact with a sheet fed by the sheet feeding means at a constant position. The sheet feeding device according to claim 1, wherein the sheet feeding device is biased by a biasing member in a direction opposite to the sheet feeding direction. 4. The separation plate rotates when it comes into contact with the sheet, and the angle at the time of the rotation is different between when the high friction member is in contact with the sheet and when it is in the non-contact position. The sheet feeding device according to claim 1, wherein the sheet feeding device is configured to be different from a certain case. 5. The high friction member is integrally provided on the separation plate, and when the separation plate comes into contact with a sheet and rotates to a predetermined angle, the high friction member moves to the non-contact position. The sheet feeding device according to claim 1, wherein the sheet feeding device is a sheet feeding device. 6. An image forming apparatus comprising an image forming unit and a sheet feeding device for feeding a sheet to the image forming unit, wherein the sheet feeding device is the one according to any one of claims 1 to 5. An image forming apparatus characterized in that there is. 7. A sheet feeding device in which a sheet stacked in a sheet storage means is fed out by a sheet feeding means, and a separation plate which abuts the sheet fed out by the sheet feeding means and separates the sheet. A sheet feeding device comprising: a means for movably attaching a high-friction member that comes into contact with the sheet fed by the sheet feeding means according to the rigidity of the sheet. 8. The sheet feeding device according to claim 7, wherein the high-friction member is movably provided on a surface of the separation plate from a cutout portion provided on the separation plate. 9. The separating plate is movably provided, and the high-friction member is movably provided on the surface of the separating plate by moving the separating plate. The paper feeder described. 10. The separation plate is movably provided, and the high friction member is movably provided on the surface of the separation plate by the movement of the separation plate, and is configured to abut against the sheet. The paper feeding device according to claim 9, wherein the paper feeding device is a paper feeding device. 11. A recording apparatus comprising a recording section and a sheet feeding apparatus for feeding a sheet to the recording section, wherein the sheet feeding apparatus is the apparatus according to any one of claims 7 to 10. Characteristic recording device. 12. A separation plate that comes into contact with a sheet fed by the sheet feeding means to separate the sheet, and a high friction member that comes into contact with the sheet fed by the sheet feeding means according to the rigidity of the sheet. A recording apparatus comprising: a means for movably attaching the sheet, a recording means for recording the sheets separated by the separating plate, and a means for conveying the sheet recorded by the recording means.