JP2004151256A - Image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily remove a jam regardless of the position of the jam. <P>SOLUTION: A paper inverting unit 19 is disposed between a paper feed cassette and a paper conveyance path P along which paper is conveyed from the paper feed cassette 16 to an image forming part, and extends from the back of an image forming apparatus main body 10 to the front thereof. When a recording medium storage unit is drawn out from the image forming apparatus main body, one end of the paper inverting unit that faces the front is exposed. The paper inverting unit is provided on its back with a cover member 191. When the cover member is opened, the other end of the paper inverting unit that faces the back is exposed, then, the paper inverting unit can be drawn out from the back. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image forming apparatus, and more particularly, to an image forming apparatus provided with a mechanism for processing a jam of a recording medium (so-called jam).
[0002]
Generally, as an image forming apparatus, an image forming section forms an image (printing) on one side (first side) of a recording sheet, then reverses the image-formed recording sheet on the first side, and re-images the image. 2. Description of the Related Art There is known an image forming apparatus in which an image is formed on both sides of a recording sheet by conveying the sheet to a forming unit and forming an image on the other side (second side) of the recording sheet.
[0003]
In such an image forming apparatus, a paper jam (so-called paper jam) is unavoidably liable to occur because the recording paper on which the image is formed on the first surface is reversed and re-conveyed to the image forming unit. Therefore, in the image forming apparatus, it is necessary to provide a mechanism for processing a paper jam (paper jam processing mechanism). It should be noted that a paper jam occurs when printing is performed on only one side, and thus such a single-sided printing image forming apparatus also needs to include a paper jam processing mechanism.
[0004]
When performing paper jam processing (jam clearing operation), for example, a paper cassette or the like is pulled out of the image forming apparatus main body to remove paper in a jam state. However, when processing a paper jam, it is necessary to check the position where the paper has jammed, operate the lever or the like to pull out the paper cassette or the like from the apparatus main body, and take out the jammed paper. It is complicated.
[0005]
In order to easily perform the jam clearing operation, a paper storage unit (paper cassette) is disposed below the image forming unit so as to be freely inserted and removed from the front side of the image forming apparatus main body, and is opposite to the image forming apparatus main body front side. A sheet reversing function unit (reversing unit) for receiving and reversing the image-formed sheet conveyed from the image forming unit on the one side is disposed on the back side of the sheet storage unit. A paper transport function unit that transports the paper from the rear side of the apparatus to a position close to the front side of the apparatus is arranged, and the paper sent from the paper transport function unit is sent to the image forming means unit at the leading end side of the paper transport function unit. The paper re-feeding unit is arranged as a re-feeding unit that can be freely inserted and removed from the front side of the apparatus.
[0006]
At the time of paper jam processing, the paper storage unit is pulled out of the apparatus from the front side of the apparatus, and the re-feed unit is also pulled out of the apparatus from the front side of the apparatus. The jam paper remaining on the paper path is exposed. Then, the user inserts his hand into the apparatus through an opening formed in the lower part of the front surface of the apparatus main body to remove the jammed paper (see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-8-292612 (paragraphs (0044) to (0058), FIG. 1)
[0008]
[Problems to be solved by the invention]
By the way, in the processing of jammed paper described in Patent Document 1, if a paper storage unit (paper cassette) is pulled out of the apparatus from the front side of the apparatus, and a re-feed unit is also pulled out of the apparatus from the front side of the apparatus, an image may be lost. Since the jammed paper remaining on the paper path of the paper transport function unit facing the lower surface of the forming unit is exposed, the jammed paper remaining on the paper path can be easily removed, but, for example, a paper determination function unit (reversing unit) In the case where a paper jam occurs, it is extremely difficult to remove the jammed paper because the paper reversing function unit is located on the back side of the image forming apparatus main body.
[0009]
In other words, in the image forming apparatus described in Patent Literature 1, when an attempt is made to perform the jam processing, the jam processing becomes extremely troublesome depending on the position where the jam occurs, and there is a problem that the jam processing cannot be easily performed. .
[0010]
SUMMARY OF THE INVENTION It is an object of the present invention to provide an image forming apparatus capable of easily performing a jam clearing operation regardless of a position where a jam has occurred.
[0011]
[Means for Solving the Problems]
According to the present invention, an image forming unit that is arranged in an image forming apparatus main body and forms an image on a recording medium, and the recording medium that is attached to the image forming apparatus main body so as to be able to be pulled out to one surface side of the image forming apparatus main body. In an image forming apparatus having a stored recording medium storage unit and a recording medium transport path that transports the recording medium from the recording medium storage unit to the image forming unit, the image forming apparatus is disposed above or below the recording medium storage unit. The image forming apparatus main body extends from one surface side to the other surface side of the image forming apparatus main body opposite to the one surface side, and receives a recording medium on which an image is formed on one side by the image forming unit, and changes the surface of the recording medium. A recording medium reversing unit for reversing the recording medium and feeding the reversal recording medium to the recording medium transport path, wherein the recording medium storage unit is pulled out of the image forming apparatus main body. The image forming apparatus is obtained, wherein a part of the conveying path as the end portion of the recording medium inversion unit facing said one side of the image forming apparatus main body so as to expose. For example, the recording medium reversing unit is disposed between the image forming unit and the recording medium storage unit.
[0012]
In this way, if the recording medium reversing unit is arranged above or below the recording medium storage unit (for example, between the recording medium conveyance path and the recording medium storage unit, from one surface side of the image forming apparatus main body) If the recording medium reversing unit extending to the other side of the image forming apparatus main body is arranged), the recording medium reversing unit facing the one side of the image forming apparatus main body can be obtained simply by pulling out the recording medium storage unit from the image forming apparatus main body. One end of the unit is exposed, and a paper jam can be easily released from one end of the recording medium reversing unit.
[0013]
In the present invention, the recording medium reversing unit is formed with a reversing conveyance path for reversing the recording medium and using the recording medium as the reversing recording medium, and is supplied from the recording medium storage unit to one surface side of the image forming apparatus main body. A guide member that guides the recording medium to be guided to the recording medium transport path and guides the inverted recording medium supplied from the reverse transport path to the recording medium transport path. When the guide member is pulled out to one surface side of the image forming apparatus main body, the guide member rotates to one surface side of the image forming apparatus main body, and one end of the reverse conveyance path facing the one surface side of the image forming apparatus main body is exposed.
[0014]
In this manner, on one surface side of the image forming apparatus main body, the recording medium supplied from the recording medium storage unit is guided to the recording medium transport path, and the recording medium supplied from the reverse transport path is guided to the recording medium transport path. A guide member is provided, and when the recording medium storage unit is pulled out to one surface side of the image forming apparatus main body, the guide member is rotated to one surface side of the image forming apparatus main body, and is brought into contact with one side of the image forming apparatus main body in the reverse conveyance path. If one end of the recording medium is exposed, the recording medium jammed in the reverse conveyance path can be removed very easily.
[0015]
Note that the guide member is rotatable toward the one surface side of the image forming apparatus main body, the recording medium storage unit is pulled out to the one surface side of the image forming apparatus main body, and the guide member is moved to the one surface side of the image forming apparatus main body. May be rotated to expose one end of the image forming apparatus body facing the one surface side of the reverse conveyance path.
[0016]
Further, in the present invention, the recording medium reversing unit is provided with a cover member on the other surface side of the image forming apparatus main body, and when the cover member is opened, the cover member faces the other surface side of the image forming apparatus main body. The other end of the recording medium reversing unit is exposed. For example, the recording medium reversing unit is formed with a reversing conveyance path for reversing the recording medium and using the reversing recording medium as the reversing recording medium. The other end facing the surface side is exposed.
[0017]
In this manner, the cover member is provided on the recording medium reversing unit on the other surface side of the image forming apparatus main body, and when the cover member is opened, the other end of the recording medium reversing unit facing the other surface side of the image forming apparatus main body Is exposed, the paper jam can be easily released from the other end of the recording medium reversing unit.
[0018]
In the present invention, the recording medium reversing unit is detachably mounted on the other surface side of the image forming apparatus main body, and the recording medium reversing unit is pulled out to the other surface side of the image forming apparatus main body. The reverse transport path is exposed.
[0019]
As described above, since the recording medium reversing unit is removably mounted on the other surface of the image forming apparatus main body, if the recording medium reversing unit is pulled out on the other surface of the image forming apparatus main body, the reversing conveyance path is formed. Since the recording medium is exposed, the recording medium jammed in the reverse conveyance path can be easily removed.
[0020]
Further, according to the present invention, an image forming unit that is disposed in the image forming apparatus main body and forms an image on a recording medium, and the recording unit that is detachably mounted on the image forming apparatus main body from one side of the image forming apparatus main body. In an image forming apparatus having a recording medium storage unit storing a medium and a recording medium conveyance path for conveying the recording medium from the recording medium storage unit to the image forming unit, The image forming apparatus is arranged to extend from one surface side of the image forming apparatus main body to the other surface side of the image forming apparatus main body opposite to the one surface side, and receives the recording medium on which an image is formed on one side by the image forming unit to receive the recording medium. A recording medium reversing unit for reversing the recording medium and feeding the reversal recording medium to the recording medium conveyance path, wherein the recording medium reversing unit is detachable from the other surface of the image forming apparatus. The image forming apparatus is obtained, characterized in that mounted on the ability.
[0021]
As described above, the recording medium reversing unit is disposed above or below the recording medium storage unit (for example, between the recording medium conveyance path and the recording medium storage unit, from one surface side of the image forming apparatus main body). And a recording medium reversing unit extending to the other side of the image forming apparatus), and the recording medium reversing unit is detachable from the other side of the image forming apparatus main body. The unit can be easily pulled out.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, unless otherwise specified. It is only an example.
[0023]
First, referring to FIG. 1, the illustrated image forming apparatus is an image forming apparatus using an electrophotographic process. The image forming apparatus includes a photosensitive drum 11, which is a latent image carrier, a developing device 12, a charging device. 13, an exposure unit 14, and a cleaning unit 15. After the photoconductor drum 11 is charged by the charger 13, the photoconductor drum 11 is exposed by the exposure unit 14 in accordance with image data. An electrostatic latent image is formed on 11. Thereafter, the electrostatic latent image on the photosensitive drum 11 is developed by a developing device (developing roller) 12 to be a toner image.
[0024]
A paper cassette (recording medium storage unit) 16 in which recording paper is stored is detachably mounted on the image forming apparatus main body 10, and this paper cassette 16 is mounted on the front side of the image forming apparatus main body 10 (in FIG. 1). (Right side: one side). One of the recording sheets stacked on the sheet cassette 16 is fed by a feeding roller 16a, and reaches a registration roller pair 16d through a sheet conveying path P by a conveying roller pair 16b and a sheet guide 16c. It is sent to the nip between the drum 11 and the transfer roller 17. Then, the toner image on the photosensitive drum 11 is transferred onto the recording paper to form a transfer image.
[0025]
Thereafter, the recording paper is sent to the fixing unit (pair of fixing rollers) 18 through the paper transport path P, where the transfer image on the recording paper is fixed. The residual toner remaining on the photosensitive drum 11 is removed by the cleaning unit 15. Note that an image forming unit is configured by the above-described photosensitive drum 11, developing device 12, charging device 13, exposure unit 14, transfer roller 17, and the like.
[0026]
In the case of performing manual paper feed, if recording paper is inserted from a manual paper feed port (not shown) provided on the front side of the image forming apparatus main body 10, the recording paper passes through the paper transport path P. The registration roller pair 16d is reached.
[0027]
In the example shown in FIG. 1, a sheet reversing unit 19 is mounted between a sheet conveying path (recording medium conveying path) P and a sheet feeding cassette 16, and the sheet reversing unit 19 is detachable from the image forming apparatus main body 10. The sheet reversing unit 19 can be optionally installed later in the image forming apparatus main body 10 as needed. If the sheet reversing unit 19 is incorporated in the image forming apparatus main body 10, double-sided printing can be performed on the recording sheet as described later.
[0028]
In this example, a case in which the sheet reversing unit 19 is mounted between the sheet transport path P and the sheet cassette 16 will be described. A configuration in which the sheet reversing unit 19 is mounted below the 16 may be employed. Further, a configuration in which a paper feed unit including the registration rollers 16d and the like, instead of the paper feed cassette, may be detachable.
[0029]
In the illustrated example, one end (left end in the drawing) of the sheet reversing unit 19 is mounted on the image forming apparatus main body 10 and protrudes from the rear side of the image forming apparatus main body 10. The reversing roller 19b is accommodated (hereinafter, this protruding portion is referred to as a sheet reversing roller accommodating portion). A cover 191 is provided in the sheet reversing roller storage section. When the cover 191 is opened, the transport path R and the sheet reversing roller 19b are exposed.
[0030]
Now, when the sheet reversing unit 19 is not incorporated in the image forming apparatus main body 10 or the single-sided print mode is selected on the front panel 10a, the path switching member 21 located downstream of the fixing unit 18 is set to the single-sided print mode position. Then, the recording sheet sent from the fixing unit 18 passes through the sheet ejection path Q and is ejected to an ejection tray 10b formed on the upper surface of the image forming apparatus main body 10.
[0031]
On the other hand, when the paper reversing unit 19 is incorporated in the image forming apparatus main body 10 and the double-sided print mode is selected by the front panel 10a or an external device to be connected, the path switching member 21 is set to the double-sided print mode position and the fixing is performed. The recording sheet sent from the unit 18 is conveyed into the sheet reversing unit 19 through the conveyance path R. The sheet reversing unit 19 is used for reversing the sheet printed on one side and performing printing on the other side of the sheet as a reversed sheet. That is, it is used for performing double-sided printing.
[0032]
When the recording sheet is detected by the sheet detection sensor 19a, the sheet reversing roller 19b is driven to rotate in the direction indicated by the solid arrow, and the recording sheet is conveyed along the path indicated by the solid line arrow, and the path (hereinafter referred to as a reverse path). Call) S is reached.
[0033]
When a predetermined time has passed since the trailing edge of the recording paper is detected by the paper detection sensor 19d, the paper reversing roller 19b is driven to rotate in the direction shown by the dashed arrow, and the recording paper is sent out from the reversing path S in the direction shown by the dashed arrow. Then, the sheet P is conveyed by a conveying roller 19e through a path (hereinafter referred to as a reversing path) T, reaches the above-described sheet conveying path P, and reaches the registration roller pair 16d.
[0034]
A sheet detection sensor 19f is disposed in the reversing path T. When a sheet is detected by the sheet detection sensor 19f, the photosensitive drum 11 is driven to rotate, and charging and exposure are started as described above. . Thereafter, as described above, the toner image on the photosensitive drum 11 is transferred to the other surface of the recording paper and fixed by the fixing unit 18. Then, by the path switching member 21 returning to the single-sided print mode position, the recording sheet on which double-sided printing has been performed is discharged through the paper discharge path Q to the paper discharge tray 10b formed on the upper surface of the image forming apparatus main body. .
[0035]
By the way, if a paper jam occurs during printing, an error message is displayed in an error message field provided on the front panel 10a according to the position where the paper jam occurs. For example, when a paper jam (paper jam) occurs in the paper feed cassette, "paper jam cassette" is displayed. When a paper jam occurs in the paper feed cassette 16, as shown in FIG. 2, the paper feed cassette 16 may be pulled out to the front side to take out the jammed paper.
[0036]
On the other hand, when a paper jam occurs in the paper reversing unit 19, the jammed paper (jam paper) is taken out as follows.
[0037]
Now, in FIG. 1, when the paper 31 is jammed in the above-described reversing path T and a paper jam (paper jam) occurs, as shown in FIG. 2, the paper feed cassette 16 is pulled out to the front side. When the paper cassette 16 is pulled out to the front side, the paper guide 16c is opened (rotated) to the front side as shown by the solid line arrow in FIG. The portion (the front end facing the front side of the image forming apparatus main body 10) is exposed. Then, as shown by the dashed arrow in FIG. 2, if the recording paper 31 is pulled out to the near side, the paper jam can be released. That is, the paper jammed in the reversing path T can be removed. If the paper feed cassette 16 is stored in the image forming apparatus main body 10 after removing the jammed paper, the paper guide 16c is closed as shown in FIG.
[0038]
In this example, the case where the paper guide 16c rotates in conjunction with the attachment / detachment of the paper cassette 16 has been described. However, after the paper cassette 16 is pulled out, it is shown in FIG. The sheet guide 16c in the state may be rotated by the operator to the state shown in FIG. 2 against the urging force so that the reversing path T is exposed.
[0039]
When the paper feed cassette 16 is pulled out, the paper guide 16c rotates to the front side, so that one end (front side) of the paper transport path P is also exposed as shown in FIG. The paper jam on the path P can be easily released.
[0040]
On the other hand, as shown in FIG. 3, when a paper jam occurs before the reversing path S, that is, when a paper jam occurs near the paper reversing roller 19b, the cover 191 provided on the rear side is provided. Is opened to expose the transport path R and the sheet reversing roller 19b. Thereafter, as shown by a solid line arrow in FIG. 3, the jammed paper can be easily released by pulling the jammed paper upward. In other words, when a paper jam occurs on the path leading to the transport path R, the sheet reversing roller 19b, and the reversing path S, the jammed sheet can be easily removed simply by opening the rear cover 191.
[0041]
Further, when a paper jam occurs in the reversing path T, as shown in FIG. 2, even if the paper cassette 16 is pulled out, if the paper 31 has not reached the vicinity of the paper guide 16c, the paper jam cannot be cleared. However, in the state where the sheet 31 is inverted and the rear end remains on the sheet reversing roller 19b, as described with reference to FIG. 3, if the cover 191 on the rear side is opened, the other end of the reversing path T ( The rear end of the image forming apparatus main body 10 facing the rear side is exposed. Then, the sheet 31 may be pulled out by holding the rear end of the sheet 31, and the sheet jam can be easily released.
[0042]
If the paper jam cannot be cleared by pulling out the paper feed cassette 16 as described with reference to FIG. 2 or opening the rear cover 191 as described with reference to FIG. The reversing unit 19 is pulled out from the image forming apparatus main body 10 to the rear side. In the illustrated example, a protective cover 32 is disposed on a part (left side in the figure) of the reversing path T so as to cover the reversing path T, and the sheet reversing unit 19 is pulled out from the image forming apparatus main body 10. Thereafter, as shown by the solid line arrow in FIG. 4, the protective cover 32 is opened, and the jammed sheet 31 is lifted upward as shown by the dashed arrow to remove the sheet 31.
[0043]
In the above example, the case where the protection cover 32 is rotated clockwise has been described. However, the protection fulcrum may be rotated counterclockwise with the rotation fulcrum on the opposite side. Furthermore, a configuration in which the protective cover 32 is not formed, or a configuration in which a hole for drawing out a sheet is formed in the protective cover 32 may be adopted. When the jam occurs, the paper reversing roller 19b, the transport roller 19e, and the like are rotated so that the jam occurs in the state illustrated in FIGS. 2 and 3 so that the jam illustrated in FIG. It is preferable to control.
[0044]
In this way, when a paper jam (paper jam) occurs in the paper reversing unit 19, the paper feed cassette 16 is pulled out to the front side, and the paper guide 16c is opened in conjunction with the pulling operation, so that the jammed paper is opened. If the jammed paper cannot be removed by pulling out the paper feed cassette 16, the rear cover 191 may be opened to remove the jammed paper. If the jammed paper cannot be removed by the above operation, the paper reversing unit 19 itself is pulled out to the rear side to take out the jammed paper.
[0045]
As described above, in the illustrated example, when a paper jam occurs in the paper reversing unit 19, the paper jam can be extremely easily released regardless of the location where the paper jam has occurred.
[0046]
【The invention's effect】
As described above, in the present invention, the recording medium reversing unit extending from one surface of the image forming apparatus main body to the other surface of the image forming apparatus main body is disposed between the recording medium conveyance path and the recording medium storage unit. By simply pulling out the recording medium storage unit from the image forming apparatus main body, one end of the recording medium reversing unit facing one surface of the image forming apparatus main body is exposed, and the recording medium reversing unit is easily mounted. There is an effect that a paper jam can be cleared from one end of the paper.
[0047]
Further, according to the present invention, on one surface side of the image forming apparatus main body, the recording medium supplied from the recording medium storage unit is guided to the recording medium transport path, and the recording medium supplied from the reverse transport path is supplied to the recording medium transport path. When the recording medium storage unit is pulled out to one surface side of the image forming apparatus main body, the guide member rotates to the one surface side of the image forming apparatus main body to guide the image on the reverse conveyance path. Since one end facing the one surface side of the forming apparatus main body is exposed, there is an effect that the recording medium jammed in the reverse conveyance path can be removed very easily.
[0048]
In the present invention, a cover member is provided on the recording medium reversing unit on the other surface side of the image forming apparatus main body, and when the cover member is opened, the recording medium reversing unit faces the other surface side of the image forming apparatus main body. Since the end is exposed, there is an effect that the paper jam can be easily released from the other end of the recording medium reversing unit.
[0049]
Further, in the present invention, since the recording medium reversing unit is detachably mounted on the other surface side of the image forming apparatus main body, if the recording medium reversing unit is pulled out on the other surface side of the image forming apparatus main body, the reverse conveyance is performed. Since the path is exposed, the recording medium jammed in the reverse conveyance path can be easily removed.
[0050]
In addition, in the present invention, a recording medium reversing unit extending from one surface side of the image forming apparatus main body to the other surface side of the image forming apparatus main body is disposed between the recording medium conveyance path and the recording medium storage unit. Since the recording medium reversing unit is detachable from the other surface side of the image forming apparatus main body, there is an effect that the recording medium reversing unit can be easily pulled out regardless of the recording medium storage unit.
[0051]
As described above, according to the present invention, there is an effect that a paper jam in a recording medium reversing unit can be cleared by an extremely simple operation regardless of the paper jam position.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating an example of an image forming apparatus according to the present invention.
FIG. 2 is a schematic diagram illustrating a state in which a sheet cassette is pulled out to the front side in the image forming apparatus illustrated in FIG. 1;
FIG. 3 is a schematic diagram illustrating a state in which a cover provided at a rear portion of a sheet determination unit in the image forming apparatus illustrated in FIG. 1 is opened.
FIG. 4 is a schematic diagram illustrating a state in which a sheet determination unit is pulled out to the back side in the image forming apparatus illustrated in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Image forming apparatus main body 11 Photoconductor drum 12 Developing device 13 Charging device 14 Exposure unit 15 Cleaning unit 16 Paper feed cassette 17 Transfer roller 18 Fixing unit 19 Paper reversing unit

Claims (8)

An image forming unit arranged in the image forming apparatus main body for forming an image on a recording medium; and a recording medium storage in which the recording medium is stored in the image forming apparatus main body so as to be drawn out to one surface side of the image forming apparatus main body. An image forming apparatus having a unit and a recording medium transport path for transporting the recording medium from the recording medium storage unit to the image forming unit;
The image forming apparatus is disposed above or below the recording medium storage unit, extends from one surface side of the image forming apparatus main body to the other surface side of the image forming apparatus main body opposite to the one surface side, and an image is formed on one side by the image forming unit. A recording medium reversing unit that receives the recording medium, inverts the surface of the recording medium, and sends out the recording medium as a reversed recording medium to the recording medium transport path,
When the recording medium storage unit is pulled out from the image forming apparatus main body, a part of a transport path serving as one end of the recording medium reversing unit facing the one surface side of the image forming apparatus main body is exposed. An image forming apparatus comprising: The image forming apparatus according to claim 1, wherein the recording medium reversing unit is disposed between the image forming unit and the recording medium storage unit. The recording medium reversing unit is formed with a reversing conveyance path for reversing the recording medium and using the reversing recording medium,
On one surface side of the image forming apparatus main body, the recording medium supplied from the recording medium storage unit is guided to the recording medium transport path, and the inverted recording medium supplied from the reverse transport path is supplied to the recording medium transport path. A guide member for guiding the
When the recording medium storage unit is pulled out to one surface side of the image forming apparatus main body, the guide member rotates to one surface side of the image forming apparatus main body, and the guide member moves to the one surface side of the image forming apparatus main body in the reverse conveyance path. 2. The image forming apparatus according to claim 1, wherein one end of the image forming apparatus is exposed. The recording medium reversing unit is formed with a reversing conveyance path for reversing the recording medium and using the reversing recording medium,
On one surface side of the image forming apparatus main body, the recording medium supplied from the recording medium storage unit is guided to the recording medium transport path, and the inverted recording medium supplied from the reverse transport path is supplied to the recording medium transport path. A guide member rotatable on the one surface side of the image forming apparatus main body,
When the recording medium storage unit is pulled out to one surface side of the image forming apparatus main body, the guide member is rotated toward the one surface side of the image forming apparatus main body, and the guide member of the image forming apparatus main body of the reverse conveyance path is rotated. 2. The image forming apparatus according to claim 1, wherein one end facing one surface is exposed. On the other side of the image forming apparatus main body, the recording medium reversing unit is provided with a cover member,
2. The image forming apparatus according to claim 1, wherein when the cover member is opened, the other end of the recording medium reversing unit facing the other surface of the image forming apparatus main body is exposed. The recording medium reversing unit is formed with a reversing conveyance path for reversing the recording medium and using the reversing recording medium,
6. The image forming apparatus according to claim 5, wherein when the cover member is opened, the other end of the reverse conveyance path facing the other surface of the image forming apparatus main body is exposed. The recording medium reversing unit is detachably mounted on the other surface side of the image forming apparatus main body,
The image forming apparatus according to claim 3, wherein the recording medium reversing unit is exposed to the other surface of the image forming apparatus main body, so that the reversing conveyance path can be exposed. An image forming unit disposed in the image forming apparatus main body for forming an image on a recording medium; and a recording medium storage removably mounted on the image forming apparatus main body from one side of the image forming apparatus main body and containing the recording medium. An image forming apparatus having a unit and a recording medium transport path for transporting the recording medium from the recording medium storage unit to the image forming unit;
The image forming apparatus is disposed above or below the recording medium storage unit, extends from one surface side of the image forming apparatus main body to the other surface side of the image forming apparatus main body opposite to the one surface side, and an image is formed on one side by the image forming unit. A recording medium reversing unit that receives the recording medium, inverts the recording medium, and sends out the recording medium as a reversed recording medium to the recording medium transport path,
The image forming apparatus, wherein the recording medium reversing unit is detachably mounted from the other side of the image forming apparatus.

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