JP3787367B2 - Paper transport device and image forming apparatus provided with the paper transport device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a paper transport device that temporarily stores paper in an intermediate paper storage means, and discharges and transports the paper stored in the intermediate paper storage means toward the transport path, and a copy provided with the paper transport device The present invention relates to an image forming apparatus such as a machine, a facsimile machine, or a printer.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as an image forming apparatus provided with this type of paper conveyance device, for example, as shown in FIG. 2, a conveyance guide plate is formed by switching a transfer paper P, which is a paper after single-sided image formation, by switching a branching claw 51. Intermediate sheet storage means provided in the lower part of the image forming unit, which is fed in the direction of the conveyance path composed of 52, 53, etc., conveyed while being gradually reversed in direction by a conveyance roller provided at a predetermined position of the conveyance path Are stacked once in a double-sided tray 57, and then the transfer paper on the double-sided tray 57 is switched back from below by a feed roller 58a, so that the entrance portion of the conveyance path 58 for refeeding the left transfer paper Is fed to the separation section provided in the entrance section, enters the entrance guide 58e of the inlet section, and is separated one by one by the transport roller 58b and the separation belt 58c, and the transport direction is reversed. Transported while it is known to perform image formation on both sides of the transfer paper P by re supplied to the image forming unit.
[0003]
[Problems to be solved by the invention]
However, in the image forming apparatus having the above configuration, when the transfer material after the single-sided image formation is once stored in the double-sided tray 57, if there is a face curl (upward curl) at the rear end of the transfer paper P, the transfer paper P Is switched back and sent out to the separation portion side of the refeeding conveyance path 58, the entry guide 58e may not be entered. When the transfer paper does not enter the entry guide 58e as described above, problems such as non-feeding at the time of refeeding and jamming of the next transfer paper P at the time of double-side stacking occur.
[0004]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to prevent the occurrence of a jam due to the deformation of a paper curl or the like, and a paper that can be easily jammed even if a jam occurs for some reason. An object of the present invention is to provide a transport device and an image forming apparatus including the paper transport device.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a paper transport device that temporarily stores paper in the intermediate paper storage means, and discharges and transports the paper stored in the intermediate paper storage means toward the transport path. The intermediate sheet containing means has a gap larger than the thickness of the sheet accommodated between the bottom plates of the intermediate sheet accommodating means and closes the entry path through which the sheet enters when being accommodated in the intermediate sheet accommodating means. A guide position that guides the leading end in the discharge direction of the paper that is switched back and discharged from the intermediate paper storage means toward the transport path, and a paper that travels along the entry path toward the intermediate paper storage means a guide part provided movably between a retreat position that avoids contact with the paper coming enters the intermediate paper storage unit is displaced by abutment, said guide section located in the guide position Move to the avoidance position It is characterized in that a contact portion.
[0006]
The invention of claim 2 is the sheet conveying apparatus according to claim 1, that the upper Kito contact portion, digits plurality set so as to contact a plurality of positions of the paper approach direction and linear direction orthogonal to the paper It is characterized by.
[0007]
The invention of claim 3 is the sheet conveying apparatus according to claim 1, is characterized in that said guide portion is provided with detection knowledge means you detect the absence in the guide position.
[0008]
According to a fourth aspect of the present invention, in the paper conveying apparatus according to the first aspect, the door that can be opened and closed and the guide member having the guide portion are retracted to a position capable of jamming in conjunction with the opening operation of the door. and it is characterized in that a link mechanism between said door and said guide member.
[0009]
According to a fifth aspect of the present invention, there is provided the paper conveying apparatus according to the first aspect, wherein the paper conveying device according to the first aspect is coaxial with the paper discharge rotating body for discharging the paper to the intermediate paper storage means and is in the direction of entering the intermediate paper storage means. A brush-like rotator that scrapes off the rear end portion of the paper is provided, and the brush-like rotator and the guide member having the guide portion are configured not to interfere with each other.
[0010]
According to the invention of claim 6, a sheet as a transfer material conveyed from the image forming unit is temporarily accommodated in the intermediate sheet accommodating means, and the sheet accommodated in the intermediate sheet accommodating means is discharged toward the conveyance path and conveyed. In the image forming apparatus provided with the sheet conveying apparatus, the sheet conveying apparatus according to any one of claims 1 to 5 is used as the sheet conveying apparatus.
[0011]
[Action]
According to the first and sixth aspects of the present invention, when the paper stored in the intermediate paper storage means is moved toward the inlet portion of the discharge conveyance path, the guide is discharged from the paper stored in the intermediate paper storage means. than it guides the direction of the tip inlet portion, even if a deformation such as curling in the paper, the paper is reliably guided to the transport path for discharge.
Further, when accommodating by advancing the sheet to the intermediate paper storage unit, by the displacement of the contact portion the paper is brought into contact, the guide portion positioned on the guide position, so to move the sheet to dodge avoidance position, The sheet is reliably stored in the intermediate sheet storing means.
[0012]
In the invention of claim 2 and 6, the upper Kito contact portion, by a plurality provided so as to abut with the paper and a plurality of locations in a direction orthogonal to the passage direction of the sheet, to the sheet of the contact portion The contact pressure is dispersed, and the contact pressure at each contact position is reduced.
[0013]
In the invention of claim 3 and 6, after receiving the sheet to the intermediate paper storage unit, when the paper jam has occurred by the housing failure, since the guide portion is not moved to the guide position, the upper dangerous The jam of the paper is detected by the intelligent means.
[0014]
In the inventions of claims 4 and 6, when the door is opened when a paper jam occurs around the guide member having the guide part, the guide member is interlocked with the opening operation of the door by the link mechanism. Retreat to a position where it can be jammed.
[0015]
In the inventions of claims 5 and 6, the paper is reliably discharged by discharging the paper to the intermediate paper storage portion by the paper discharge rotating body and knocking off the trailing edge of the paper by the brush-like rotating body. It is stored in the intermediate sheet storing means.
Further, by configuring so that the brush-like rotator and the guide member having the guide portion do not interfere with each other, the guide member comes into contact with the brush-like rotator so that the brush member comes off or falls asleep. Prevents body damage.
[0016]
【Example】
Hereinafter, an embodiment in which the present invention is applied to an electrophotographic copying machine (hereinafter referred to as a copying machine) which is an image forming apparatus will be described.
FIG. 3 is a front view showing a schematic configuration of the copier according to the present embodiment. The copier mainly includes an automatic document feeder 1, an exposure optical unit 2, a main body 3, and a bank feeder 4. It is configured.
The image forming section of the main body 3 is provided with a photosensitive drum 31 that can be driven to rotate clockwise, and a charging charger 32, a developing device 33, a transfer device 34, a cleaning device 35, and the like are provided around the photosensitive drum 31. Has been. The photosensitive drum 31 is provided with a photosensitive layer on the surface thereof, is uniformly charged by a charging charger 32, and an image of a document fed from the automatic document feeder 1 is exposed by the exposure optical unit 2 to form an electrostatic latent image. Is formed. The electrostatic latent image is visualized by the developing device 33 to form a toner image. The toner image is transferred to a transfer sheet P as a sheet fed from the bank sheet feeding unit 4 by the transfer device 34 and then fixed by the fixing device 36. On the other hand, the toner remaining on the photosensitive drum 31 after the transfer is cleaned by the cleaning device 35 and prepared for the next image formation.
[0017]
In addition, the main body unit 3 is provided with a duplex unit 5 as a sheet transport device that inverts the transfer sheet P after single-sided copying and supplies it to the image forming unit again for copying on both sides of the transfer sheet P. ing.
FIG. 1 is a front view showing a schematic configuration of the duplex unit 5. The double-sided unit 5 includes a branch claw 51, an outer guide plate 52 and an inner guide plate 53 as a conveyance path, conveyance rollers 54 and 55, a discharge roller 56 as a sheet discharge rotary member fixed on a support shaft 56a, an intermediate An intermediate tray 57 serving as a sheet storage unit, a refeeding conveyance path 58, a transfer sheet sensor 59, and the like.
[0018]
The outer guide plate 52 guides the reverse side of the transfer paper P, and the inner guide plate 53 is pivotally supported by a step screw between the side plates so as to be rotatable in the vertical direction and guides the reverse side of the transfer paper P. The inner guide plate 53 is provided with a spacer 53a made of a magnet or the like for maintaining an appropriate distance between the outer guide plate 52 and the inner guide plate 53. Instead of the spacer 53a, a part of the inner guide plate 53 may be cut and raised. The inner guide plate 53 is provided with a discharge driven roller 53c that is paired with the discharge roller 56 and is pressed by a pressure member 53b.
Further, the intermediate tray 57 includes a gathering roller 57a for feeding and bringing the accommodated transfer paper P to the separating portion side, and a jogger fence 57b for aligning the accommodated transfer paper P in the left-right direction (perpendicular to the plane of FIG. 1). It has.
[0019]
In the duplex unit 5, the transfer sheet P after one-sided copying fixed by the fixing device 36 is transported and driven by the transport roller 54, and is guided to the outer guide plate 52 side by switching the branching claw 51. The sheet is further transported by the discharge roller 56 and is accommodated on the intermediate tray 57. When each transfer sheet is accommodated, the transfer sheet sensor 59 detects the passage of the rear end of the transfer sheet P, and then, at a predetermined timing, the closing roller 57a and the jogger fence 57b are operated to perform the switchback, thereby transferring the transfer sheet. While the sheets P are aligned, they are brought to the separation section of the left conveyance path 58 and stacked. Then, after the transfer paper P has been stacked by the number of originals in the automatic document feeder 1, for example, when the user presses the re-feed button, the transfer paper stacked by the feed roller 58 a of the transport path 58. fed leftward from the bottom of the P, can change the conveyance direction is separated by the transport roller 58b and the separation belt 58c in the right direction, it is supplied to the image forming unit by the refeed conveyance row La and the like. The transfer sheet P for which both-sided copying has been completed is discharged onto the discharge tray 37 by the selection of the branching claw 51.
[0020]
By the way, as described above, if there is a large curl or the like at the rear end of the transfer paper P when the transfer paper P is accommodated in the intermediate tray 57, the transfer path P is switched when the transfer paper P is switched back. There is a case where the entrance guide 58e provided in the separation portion does not enter, and a jam occurs.
[0021]
Therefore, in this embodiment, as shown in FIGS. 1 and 4, a guide member 61 having a guide portion 61a is provided. The guide member 61, to pivot in the vertical direction about the support shaft 61b, is fixed to a support shaft 61b attached rotatably on the inner guide plate 53, the guide unit 61a, the transfer sheet When P is accommodated in the intermediate tray 57, the rear end of the transfer paper P is guided toward the transport path 58 . Further, as a position switching means for moving the guide portion 61a of the guide member 61 to the retreat position when the transfer sheet P is accommodated in the intermediate tray 57, is fixed to the support shaft 61b, the transfer sheet P entering into the intermediate tray 57 A contact portion 62 that rotates in conjunction with the guide member 61 is provided.
[0022]
If there is no possibility of damaging the transfer paper P, only one contact portion 62 may be provided. However, when there is only one contact portion 62, the thin transfer paper P (for example, 45g paper) is used. ) Or extremely high humidity transfer paper, the leading edge of the transfer paper may be damaged.
Therefore, in the present embodiment, as shown in the perspective view of FIG. 4, three contact portions 62 are provided so as to be distributed and contacted at three positions on the front end of the transfer paper P. Note that the number of the contact portions 62 is not limited to three, and two or four or more may be provided.
[0023]
Further, as shown in FIG. 5, when the transfer paper P is stored in the intermediate tray 57, the trailing edge of the transfer paper passes through the discharge roller 56 and the discharge driven roller 53c, and then discharge becomes unsatisfactory for some reason and a jam occurs. In this case, if the jam cannot be detected, the next transfer sheet is further fed, and the jam processing becomes more difficult.
Accordingly, in this embodiment, Ru is constituted by the arm detecting sensor 64 for detecting the operation of the guide member detecting arm 63 to the support shaft 61b is fixed to pivot in the vertical direction in accordance with the guide member 61, and the arm 63 test Knowledge means are provided. Arm 63, when the guide member 61 is in the guide position you guide the trailing edge of the transfer sheet, to come to the detection position by the arm detecting sensor 64 is fixed to the support shaft 61b. In addition, the arm detection sensor 64 includes, for example, a filler member 64a that rotates when the tip of the arm 63 contacts, and an optical sensor or a microswitch that detects a change in the position of the end of the filler member 64a. be able to.
[0024]
Further, in this embodiment, as shown in FIGS. 4 and 6, the transfer paper P is knocked on the support shaft 56 a of the discharge roller 56 when the transfer paper P is received in the intermediate tray 57. A brush roller 7 as a brush-like rotating body is attached. The brush member of the brush roller 7 is made of a soft material, and is easily deformed even when the transfer paper P hits the leading edge of the transfer paper P when it is accommodated in the intermediate tray 57, so that the transfer paper P passes therethrough. I don't get in the way.
If the brush roller 7 and a part of the guide member 61 interfere with each other, the brush member of the brush roller 7 may come off or the brush member may lie down, and the transfer paper P may be tapped. The performance of dropping may be reduced, and jamming may occur.
Therefore, in this embodiment, as shown in FIG. 6A, the guide member 61 and the brush roller 7 are configured not to interfere with each other. In FIG. 6A, the brush roller 7 and the arm portion 61c of the guide member 61 overlap, but as shown in FIG. 6B, the position is set so as not to interfere in the direction of the support shaft 61b.
[0025]
In addition, when a jam occurs due to some reason when the transfer paper P is stored in the intermediate tray 57 or when paper is re-fed from the intermediate tray 57, the guide member 61 is disturbed when the user performs jam processing. Workability is poor. Further, in the case of a type in which the intermediate tray 57 can be pulled out to the front side of the apparatus main body, the intermediate tray 57 and the guide member 61 interfere with each other, causing problems such as breakage.
Therefore, in this embodiment, a link mechanism between the front door 8 and the guide member 61 that retracts the guide member 61 to a position capable of jamming in conjunction with the opening operation of the front door 8 that can be opened and closed of the apparatus main body. Provided. As shown in FIG. 7, this link mechanism has a contact portion 53d of an inner guide plate 53 to which a guide member is attached, and a contact portion 81a that engages with the corresponding contact portion 53d, and is fixed to the front plate of the main body. A guide plate release lever 81 rotatably attached to the support shaft 81b, a lever turn arm 82 that is turnable in the horizontal direction to turn the guide plate release lever 81 up and down, and a lever turn arm 82 A bracket 83 having a pivot shaft 83a and attached to the front plate of the main body, a torsion coil spring 84 as an urging means for the lever pivot arm 82, a part of the front door 8 and opening / closing the front door 8 The lever rotation arm abutting portion 8a for rotating the lever rotation arm 82 is constituted.
[0026]
FIGS. 8A and 8B are a plan view and a front view showing the operation of the link mechanism. When the main body front door 8 is open, the lever rotating arm 82 is biased to the position indicated by the solid line by the torsion coil spring 84. As a result, the guide plate release lever 81 is moved to the position of the solid line, the contact portion 81a of the guide plate release lever 81 contacts the contact portion 53d of the inner guide plate 53, and the guide member 61 is moved as shown in FIG. With the inner guide plate 53, it retracts to a position where it can be jammed. On the contrary, when the front door 8 is closed, the lever turning arm contact portion 8a of the door 8 pushes the lever turning arm 82 to the position 82 ′ of the two-dot chain line. Accordingly, the guide plate release lever 81, the inner guide plate 53, and the guide member 61 are set while maintaining an appropriate distance from the outer guide plate 52 by their own weight.
[0027]
As described above, according to the present embodiment, as shown in FIG. 1, when the transfer paper P is stored in the intermediate tray 57, the front end of the transfer paper P is pressed by the contact portion 62 and rotated upward. Thus, the guide member 61 is rotated to the position 61 ′. Thereafter, when the transfer paper P is accommodated in the intermediate tray 57, the guide member 61 freely falls, the guide portion 61a contacts the curled rear end portion of the transfer paper P, and the transfer paper P fed by the shift roller 57a is transferred. It is possible to guide so as to surely enter the entry guide 58e provided in the separation portion of the conveyance path 58. Therefore, the occurrence of jam in the duplex unit 5 can be prevented, and the refeeding performance can be improved.
[0028]
Further, according to the present embodiment, as shown in FIG. 4, by providing three contact portions 62 so as to be dispersed and contacted at three positions on the front end of the transfer paper P, the transfer of the contact portion 62 is performed. Since the contact pressure on the paper P is dispersed, the transfer paper can be prevented from being damaged.
Incidentally, switching of the guide position and the retreat position of the guide portion 61a of the guide member 61, i.e. in the vertical direction of the rotation of the guide member 61, utilizes a contact pressure of the contact portion 62 of the transfer sheet P passing However, it can also be controlled using an actuator such as a solenoid. However, when the rotation stroke of the guide member 61 is long and the interval between continuously passing transfer sheets is short (for example, 150 msec), the response cannot be made in time with a solenoid or the like, and appropriate rotation control of the guide member 61 is difficult. Sometimes it becomes. Also in this case, a reliable operation can be realized if the guide member 61 is rotated using the contact pressure of the transfer paper P passing through the contact portion 62 as in this embodiment.
[0029]
Further, according to this embodiment, as shown in FIG. 5, when there is a defective discharge of the transfer paper P, the guide member 61 does not return to the original position shown by the solid line in FIG. Since it is not detected by the sensor 64, a discharge failure of the transfer paper P can be detected. Based on the detection result of the discharge failure, the transfer paper stop control means can stop the next transfer paper P, or the display means can display the discharge failure to prompt the user to perform jam processing. . Therefore, it is possible to prevent the occurrence of a jam that is more difficult to process and improve the jam processing performance.
[0030]
Further, according to the present embodiment, the guide member 61 is retracted together with the inner guide plate 53 to a position where the jam can be dealt with in conjunction with the opening movement of the front door 8 of the apparatus main body. Can be better.
[0031]
In addition, according to the present embodiment, the guide member 61 is configured to avoid the brush roller 7, so that the brush roller 7 is not damaged and the life of the brush roller 7 is not changed. Can be achieved, and stable conveyance performance can be maintained.
[0032]
The present embodiment shows an example in which the present invention is applied to the duplex unit 5 as a sheet conveying means in a copying machine for duplex copying. However, the present invention is not limited to the copying machine for duplex copying. The present invention can also be applied to a reversing unit of an image forming apparatus such as a copying machine having a function of reversing paper and stacking it on a paper discharge tray.
[0033]
In this embodiment, the present invention is applied to the duplex unit 5 in which the transfer paper P accommodated in the intermediate tray 57 is switched back and discharged. However, the sheet is accommodated in the intermediate tray without being switched back. Even a paper transport device that discharges paper while transporting it in substantially the same direction as the current transport direction can be applied when there is a risk of deformation such as curling at the leading edge in the paper discharge direction.
[0034]
In the present embodiment, the present invention is applied to the duplex unit 5 in a copying machine as an image forming apparatus. However, the present invention is not limited to an image forming apparatus, but is a printing machine, a packaging machine, a cash voucher / securities processing machine. A paper that is used in a paper-using machine such as a cigarette manufacturing machine and that temporarily stores the paper in an intermediate paper storage means such as an intermediate tray, and discharges the paper stored in the intermediate paper storage means toward the transport path The transport device can also be applied when there is a risk of deformation such as curling at the leading end in the paper discharge direction.
[0035]
【The invention's effect】
According to the first and sixth aspects of the present invention, even when the paper is curled or deformed, the paper is reliably guided to the discharge conveyance path. There is an effect that it is possible to improve the performance of paper conveyance such as.
[0036]
According to the invention of claim 2 and 6, the contact portion, by a plurality disposed so as to contact the plurality of locations of paper in a direction perpendicular to the approach direction to the sheet of the intermediate paper storage unit, those Since the contact pressure of the contact portion to the paper is dispersed and the contact pressure at each contact position is reduced, there is an effect that damage to the paper can be prevented.
[0037]
According to the invention of claim 3 and 6, after receiving the sheet to the intermediate paper storage unit, when the paper jam has occurred by the housing failure, since the guide portion is not moved to the guide position, the upper Symbol paper jam by the examiner known means will be able to detect. Using this jam detection result, paper conveyance can be stopped or jam processing can be performed, so that jams that are more difficult to process can be prevented and jam processing performance can be improved. is there.
[0038]
According to the invention of claim 4 and 6, opening the door when the paper jam occurs in the periphery of the guide member having the guide portion, by the link mechanism, the guide member in conjunction with the operation of opening the door Is retracted to a position where it can be jammed, so that it is possible to improve operability such as jam handling.
[0039]
According to invention of Claim 5 and 6, by comprising so that the said brush-like rotary body and the said guide member may not interfere, a guide member contacts a brush-like rotary body, and a brush member falls out or sleeps. The occurrence of damage to the brush-like rotating body such as the above can be prevented, so that the life can be extended without changing the properties of the brush-like rotating body, and stable conveying performance can be maintained.
[Brief description of the drawings]
FIG. 1 is a front view showing a schematic configuration of a duplex unit 5 of a copying machine according to an embodiment.
FIG. 2 is a front view showing a schematic configuration of a duplex unit of a conventional copying machine.
FIG. 3 is a front view illustrating a schematic configuration of the copier according to the embodiment.
4 is a perspective view showing an arrangement of a guide member 61, an inner guide plate 53, a brush roller 7 and the like of the duplex unit 5. FIG.
FIG. 5 is a front view illustrating a schematic configuration of the duplex unit 5 in a state where a defective discharge of the transfer paper P has occurred.
6A is a front view showing a positional relationship between the guide member 61 and the brush roller 7. FIG.
FIG. 4B is a side view of the guide member 61, the inner guide plate 53, the brush roller 7 and the like viewed from the direction A in FIG.
FIG. 7 is an explanatory diagram showing a configuration of a link mechanism between a front door 8 and a guide member 61.
FIG. 8A is a plan view showing the operation of the link mechanism.
(B) is a front view which shows operation | movement of the link mechanism.
FIG. 9 is a front view showing a schematic configuration of the duplex unit 5 in a state where the front door 8 is opened and the guide member 61 is retracted.
[Explanation of symbols]
5 Double-sided unit 7 Brush roller 8 Front door 8a Lever turning arm contact portion 51 Branch claw 52 Outer guide plate 53 Inner guide plate 53c Discharged follower roller 56 Discharge roller 57 Intermediate tray 57a Collar roller 57b Jogger fence 58a Delivery roller 58b Conveyance roller 58c Separating belt 58e Entrance guide 59 Transfer paper sensor 61 Guide member 61a Guide portion 62 Contact portion 63 Guide member detection arm 64 Arm detection sensor 81 Guide plate release lever 82 Lever rotation arm 83 Bracket 84 Torsion coil spring P Transfer paper

Claims (6)

In a paper transport device that temporarily stores paper in the intermediate paper storage means, and discharges and transports the paper stored in the intermediate paper storage means toward the transport path,
The intermediate sheet has an interval larger than the thickness of the sheet accommodated between the intermediate sheet accommodating means and the intermediate sheet while closing an entry path through which the sheet enters when being accommodated in the intermediate sheet accommodating means. Contact between the guide position for guiding the leading end in the discharge direction of the paper that is switched back and discharged from the storage means toward the transport path, and the paper that travels through the entry path toward the intermediate paper storage means A guide unit provided movably between an avoidance position and
Paper coming enters the intermediate paper storage unit is displaced by abutment, paper transport, characterized in that said guide section located in said guide position and a contact portion that moves to the avoidance position apparatus. 2. The sheet conveying apparatus according to claim 1, wherein a plurality of the abutting portions are provided so as to abut on a plurality of positions of the sheet in a direction orthogonal to the entering direction of the sheet. Paper conveying apparatus of claim 1, wherein the guide unit is characterized in that a detection knowledge means you detect the absence in the guide position. And openable door, in conjunction with the operation of the door is opened to, retracting the guide member having the guide portion to the jam processing position capable provided a link mechanism between said door and said guide member The sheet conveying apparatus according to claim 1. A brush-like rotator is provided coaxially with the sheet discharge rotator for discharging the sheet to the intermediate sheet storage means to knock off the rear end of the sheet in the direction of entry into the intermediate sheet storage means;
2. The paper conveying apparatus according to claim 1, wherein the brush-like rotating body and the guide member having the guide portion are configured not to interfere with each other. Image formation provided with a sheet conveying device that temporarily accommodates a sheet as a transfer material conveyed from an image forming unit in an intermediate sheet accommodating unit, and discharges the sheet accommodated in the intermediate sheet accommodating unit toward a conveying path. In the device
An image forming apparatus using the sheet conveying apparatus according to claim 1 as the sheet conveying apparatus.

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