JPH04246658A - Image forming device - Google Patents

Abstract

PURPOSE:To make an opening/closing unit light in weight and small in size, also to make the space of a set position small and also to easily perform processing for jamming. CONSTITUTION:A 2nd carrying means 26 and a transfer means 5 are supported so that they can be moved in a direction separating from an image carrier 3, and also an allowing part 40 for allowing the separating action of the 2nd carrying means 26 and the transfer means 5 is formed in a device main body, and also the recording medium which is carried to the allowing part 40 by the 2nd carrying means 26 is reversed by a 3rd carrying means 30 so as to be stored in a 1st storing part 32 formed in the allowing part 40 in the device main body and so as to be ejected. And also the 2nd carrying means 26 and the transfer means 5 are formed so as to be opened and closed.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an image forming apparatus that has an improved paper ejection and jam handling structure for recording paper (hereinafter referred to as copy paper) as a recording medium in, for example, an electronic copying machine or a laser printer. It is.

0002

2. Description of the Related Art Conventionally, in this type of electronic copying machine, the main body of the device in which the image forming process means is built-in is separated into an upper unit and a lower unit with the copy paper conveyance path as a boundary, and the upper unit is separated from the upper unit. Some have a clamshell structure that can be rotated upward to open and close.

In such conventional electronic copying machines, when a jam occurs, the upper unit is opened upward to clear the jam.

[0004] Furthermore, in conventional electronic copying machines and the like, when copy paper on which an image has been formed by the image forming process means is ejected, it is usually ejected onto a paper ejection tray provided at the top or on one of the left and right sides outside the main body of the apparatus. The current situation is that it is written on paper.

[0005]

However, in the conventional structure described above, the upper unit that opens and closes when handling a jam is heavy, so the opening and closing mechanism is complicated, the opening and closing unit becomes large, and the entire device becomes expensive.

[0006] Furthermore, when the upper unit is opened and closed to clear a jam during copying, the originals placed on the original table or platen cover fall and scatter on the floor, easily staining the originals. It is troublesome to collect them.

Furthermore, in devices having a structure in which copy paper is ejected onto a paper ejection tray provided outside the main body of the apparatus, particularly on one of the left and right sides, a width corresponding to the protrusion of the paper ejection tray is used. There was a problem in that it was necessary to secure an extra installation location.

The present invention has been made under the above circumstances, and its objects are to reduce the weight and size of the opening/closing unit, to reduce the installation space, and to solve the problem of jamming. An object of the present invention is to provide an image forming apparatus that can easily perform the following steps.

[0009]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes an apparatus main body, a device built into the apparatus main body, which forms an image on an image carrier, and which is arranged opposite to the image carrier. A first conveying means guides and conveys the recording medium housed in a first paper feeding means provided in the apparatus main body between the transferred image transfer means and the image formed on the image carrier. an image forming process means for transferring the image onto a recording medium by a transfer means and then conveying the recording medium to the downstream side by a second conveyance means; a support means that supports the image carrier so as to be movable in a direction away from the image carrier; and a permitting portion formed in the apparatus main body so as to allow the second transport means and the transfer means to move apart due to the action of the support means; , a first accommodating section which is formed in the permissible section and serves as an ejected paper accommodating means for the recording medium; and a third accommodating section for transporting the recording medium conveyed by the second conveying means to the first accommodating section. a switching means for transporting and storing the recording medium by switching to a third transporting means; temporarily storing the recording medium transported to the third transporting means by the switching means in a second storage section formed at a lower part of the first storage section; a stacking means for carrying out multiple or double-sided copying by conveying between the first conveyance means and a transfer means disposed opposite to the image carrier; and a recording conveyed to the third conveyance means by the switching means. and a fourth conveyance means for switching back and reversing the medium and discharging the medium to the first storage section, the fourth conveyance means comprising:
The stack means is configured to be movable to a corresponding position in the second storage section.

In this case, it is preferable that the initial standby position of the fourth conveyance means be moved to a position corresponding to the first storage section.

[0011]

[Operation] That is, the present invention supports the second conveyance means and the transfer means so as to be movable in the direction away from the image carrier,
In addition, a permitting section is formed in the apparatus main body to permit the separation operation of the second conveying means and the transfer means, and the recording medium conveyed by the second conveying means is transferred to the third conveying section with respect to the permitting section. Since the paper is reversed by the conveyance means and stored in the first storage section formed in the permissible section in the apparatus main body and then discharged, the paper is separated from the image carrier of the second conveyance means and the transfer means. The number of parts in the opening/closing mechanism is small, and the opening/closing unit becomes more compact. Furthermore, the opening/closing unit can be opened and closed by moving in the same direction as before. There is no need to secure it.

[0012] Furthermore, since the second conveying means and the transfer means are designed to open and close, the originals placed on the original table or platen cover may fall onto the floor during jam removal. Never.

Furthermore, the recording medium transported by the third transport means is placed in a first storage section formed in a permissible section in the main body of the apparatus, and again disposed facing the image carrier by the first transport means. and a second storage section serving as a stacking means for conveying between the transfer means and the transfer means for multiple copying or double-sided copying; Since the movement of the recording medium is controlled to the corresponding position in the storage section, only one set of fourth conveyance means is required for switching back and reversing the recording medium.

Furthermore, by moving the initial standby position of the continuous reversing unit means to a position corresponding to the first storage section, the fourth reversing unit during normal copying or double-sided copying can be performed.
This prevents wasteful movement of the transport means.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 schematically show the overall structure of an electronic copying machine as an image forming apparatus according to the present invention. In the figures, 1 is a main body of the machine, and this main body 1 includes an image forming process means 2. It is equipped with

The image forming process means 2 has a photoreceptor drum 3 as an image carrier rotatably supported approximately in the center of the apparatus main body 1, and around the photoreceptor drum 3, A developing device 4, a transfer device 5, a peeling device 6, a cleaning device 7, a static eliminator 8, and a charging device 9 are arranged in this order.

The photosensitive drum 3 rotates in the direction of arrow a and is uniformly charged by the charging device 9.

Further, on the upper surface of the apparatus main body 1, an original platen 10 made of a platen glass is provided, and on this original platen 10, a platen cover 11 (not shown) for holding an original is rotatable upward. It is set in.

Furthermore, reference numeral 12 in the figure represents an exposure device as an exposure means arranged below the document table 10.

This exposure device 12 includes an exposure lamp 14 whose back is surrounded by a reflector 13 which is an exposure carriage, and first, second and third reflecting mirrors 15, 16, 1.
7, a lens 18, and fourth, fifth, and sixth reflecting mirrors 1
It consists of optical systems such as 9, 20, and 21.

That is, an image of a document (not shown) placed on the document table 10 is scanned by the exposure device 12 and exposed onto the photosensitive drum 3 of the image forming process means 2. This forms an electrostatic latent image.

The electrostatic latent image formed on the photosensitive drum 3 is developed by a developing device 4.

On the other hand, in the lower part of the apparatus main body 1, there is a paper feeder, which is a first paper feeder, which stores recording paper (hereinafter referred to as copy paper) P made of plain paper as a recording medium by size. Cassettes 22 and 23 are arranged.

These paper feed cassettes 22 and 23 selectively feed copy paper P via paper feed rollers 22a or 23a.
is taken out, and this taken out copy paper P is transported through a paper feed path 24 and a pair of registration rollers 2 that constitute the first conveyance means.
5a and 25b, the paper is guided and fed between the photosensitive drum 3 and the transfer device 5 disposed opposite to it,
The developed image developed by the developing device 4 is transferred onto the copy paper P by the transfer device 5.

The copy paper P after the transfer by the transfer device 5 is peeled off by a peeling device 6 using AC corona discharge, and is conveyed to a fixing device 27 via a conveyor belt 26, which is a second conveyance means.

On the other hand, the developer remaining on the photoreceptor drum 3 after the transfer and peeling off of the developed image onto the copy paper P is cleaned by a cleaning device 7, and the potential on the photoreceptor drum 3 is removed by a static eliminator 8. is set below a certain level to enable the next copy operation.

Further, the copy paper P on which the developed image has been melt-fixed by the fixing device 27 is transferred to a first pair of paper ejection rollers 28a and 28 provided downstream of the fixing device 27.
The paper is ejected by b.

A first gate 29 as a first switching means is installed downstream of the first paper ejection roller pair 28a, 28b, and this copy paper P is By switching the gate 29, the copy paper P is guided to the paper discharge path 30, which is a third conveying means formed in the main body 1 of the apparatus.

The copy paper P guided to the paper ejection path 30 side is moved to a second paper ejection roller pair 31a disposed on the apparatus main body 1 side by a paper ejection control operation by a continuous reversing unit means 300, which will be described later. , 31b into a first storage section (internal tray) 32, which is a discharged paper storage means formed in the apparatus main body 1, and is discharged face down with the original image facing downward. It has become.

By the way, as shown in FIGS. 3 and 4, the image forming process means 2 includes a photosensitive drum 3, a developing device 4, a cleaning device 7, a static eliminator 8, a charging device 9, an upper registration roller 25a, and a fixing device. Device 27 and upper paper ejection roller 2
8a, the transfer device 5, the peeling device 6, the lower registration roller 25b, and the lower paper ejection roller 28b.
The lower unit 2B including the copy paper P is vertically separated with the conveyance path of the copy paper P as the border.

The rear end portion of the lower unit 2B corresponding to the rear side 1A of the apparatus main body 1 is rotatably supported by a shaft 200 constituting a support means, and the apparatus main body 1 is supported around the shaft 200 as a fulcrum. By moving the front end side corresponding to the front side 1B downward by driving the hydraulic cylinder 201, the conveyor belt 26, the transfer device 5, etc. can be opened and closed so as to be movable in the direction away from the photoreceptor drum 3. It has become.

Such an opening/closing operation of the lower unit 2B is performed to remove the copy paper P on the conveyance path when a jam occurs, and is also performed by rotating the lower unit 2B downward as shown in FIG. , has increased the scope of jam processing.

Note that 202 in the figure is the lower unit 2B.
The locking mechanism allows the front end side to be locked to the support frame 203 of the upper unit 2A, and is unlocked when a jam is cleared, allowing the lower unit 2B to be opened and closed.

[0035] Furthermore, the lower unit 2 in the device main body 1
A permitting portion 40 is formed below the lower unit 2B to allow opening and closing movement of the lower unit 2B, and this opening/closing permitting portion 40 is used as an ejector for inverting and storing the copy paper P discharged from the paper discharging path 30. A first storage section 32 serving as paper storage means is arranged.

Furthermore, reference numeral 50 in the figure represents a paper discharge tray detachably attached to the paper discharge side of the main body 1 of the apparatus.

This paper output tray 50 is normally removed so that the main body 1 of the apparatus can be installed close to an indoor wall (not shown), thereby reducing the installation space. It is something that exists.

Further, this paper ejection tray 50 is attached to the apparatus main body 1 as necessary, and is attached to the first paper ejection roller pair 28.
The copy paper P discharged from the downstream side of a and 28b is
By switching the gate 29, the third paper ejection roller pair 5
1a and 51b so that the paper can be ejected to the outside of the main body 1 of the apparatus.

In the figure, reference numeral 60 denotes a sheet discharge switching and reversing means which is a fourth conveying means, and this sheet discharge switching and reversing means 60 switches from the first pair of sheet discharge rollers 28a and 28b to the switching means 2.
9, the copy paper P conveyed to the paper discharge path 30 side of the third conveyance means is guided to the switching path 61 via the continuous reversing unit means 300, and is switched back and reversed, so that the copy paper P is The document is configured such that it can be stored in the first storage section 32 in a face-up state with the original image facing upward.

[0040] As a result, in the apparatus in which the automatic document feeder 70 is mounted on the document table 10 of the apparatus main body 1, the order in which the documents G are fed and the order in which the copy sheets P are ejected can be matched. becomes possible.

Further, 80 in the figure indicates the copy paper P conveyed from the first paper discharge roller pair 28a, 28b to the paper discharge path 30 side of the third conveyance means by the gate 29 which is the first switching means. This is a second storage section (ADD stacker) that serves as a stacking means for temporarily storing.

On the entrance side of the second storage section 80, a third paper ejection roller pair 81a, 81 disposed on the apparatus main body 1 side is provided.
b is provided so that the copy paper P discharged to the paper discharge path 30 side of the third conveyance means is discharged into the storage section 80 via the continuous reversing unit means 300 and temporarily stored therein. .

The copy paper P discharged into the second storage section 80 is fed by a pair of paper feed rollers 82a and 82 provided on the exit side.
2b, the paper is again guided and fed between the photosensitive drum 3 and the transfer device 5 disposed opposite to it via the paper feed path 24 of the first conveyance means and the pair of registration rollers 25a and 25b. By transferring the developed image developed by the developing device 4 onto the copy paper P by the transfer device 5, multiple copies or double-sided copies are made possible.

Furthermore, in the figure, reference numeral 100 denotes a second holder installed on the side surface of the apparatus main body 1, in which a large capacity copy paper P is stored.
This is a large-capacity paper feeding device that serves as a paper feeding means.

This large-capacity paper feeding device 100 is disposed on the side surface of the permissible portion 40 formed in the device main body 1, so that the pickup roller 101 and the paper feeding roller 1
This makes it possible to arrange the copy paper P at a position such that the conveyance path of the copy paper P between the photosensitive drum 3, which is conveyed via the photosensitive drum 3, and the transfer device 5, which is disposed opposite to the photosensitive drum 3, is substantially straight. Further, the paper feed path 24 constituting the first conveying means is arranged to pass between the large capacity paper feed device 100 near the side surface of the permissible portion 40 formed in the apparatus main body 1, and the permissible portion 40 is A part of the guide part 24a on the side of the part 40,
It can be opened and closed inward by a lever 41 rotatably supported by a shaft 41a, and as shown by the dotted line in FIG. 5, the paper feed path 24 is opened by the opening operation of this guide portion 24a, making it easy to clear the paper jam. I have to.

On the other hand, in the sheet discharge path 30 constituting the third conveying means, a part of the guide section 30a on the side of the allowing section 40 is
It can be opened and closed inward by a lever 42 rotatably supported by a shaft 42a, and as shown by the dotted line in FIG. 5, the paper discharge path 30 is opened by the opening operation of this guide portion 30a, facilitating jam removal. I have to.

By the way, as shown in FIG. 6, the continuous reversing unit means 300 described above transfers the copy paper P conveyed from the paper discharge path 30 of the third conveyance means to the first storage section 32 or the second storage section. First guide path 301 guiding to section 80
, a second guide path 302 that guides the paper to the switching path 61 of the sheet discharge switching and reversing means 60 as a fourth conveying means, and a second guide path 302 that switches between the first and second guide paths 301 and 302.
and a second gate 303 as a switching means.

[0048] The continuous reversing unit means 300
is movable in the vertical direction by forward and reverse rotation of a pinion 304 that meshes with a rack (not shown), and corresponds to the second paper ejection roller pair 31a, 31b of the first storage section 32. From the initial standby position L1, as shown in FIG.
Stacking position L2 corresponding to the third paper ejection roller pair 81a, 81b of the second storage section 80 as the stacking means
up to copy selection module (e.g. normal copy,
The paper ejection switching and reversing means 60, which is the fourth transport means, is movable in accordance with the movement of the continuous reversing unit means 300. It has become.

The movement control state of the above-mentioned continuous reversing unit means 300 during normal copying, multiple copying, or double-sided copying will be explained based on the flowcharts shown in FIGS. 8 to 12.

First, when performing normal copying, the continuous reversing unit means 300 performs an initial copying operation corresponding to the second paper ejection roller pair 31a, 31b of the first storage section 32 as shown in FIG. It is in standby position L1.

At this time, as shown in FIG. 8, when the discharge state of the copy paper P after copying is selected and the paper is discharged face down, the second gate 303 of the continuous reversing unit means 300 is Switching control is performed to open the first guide path 301 and close the second guide path 302, and in this state, when the copy key is pressed, the first paper feeding means 22, 23
The front side of the copy paper P selected and fed according to the paper size is copied.

[0052] The copy paper P after copying is then
By switching the first gate 29 provided on the downstream side of the paper ejection roller pair 28a, 28b, the copy paper is guided to the paper ejection path 30 side, which is the third conveyance means, and the copy paper is removed by the second gate 303. P is U-turned and discharged roller pair 31a, 31
The paper is stored face down in the first storage section (internal tray) 32 via the paper b, and is ejected.

When the copy paper P is discharged face-up, the second gate 303 of the continuous reversing unit means 300 closes the first guide path 301 and opens the second guide path 302. As a result, the copy paper P is conveyed to the switching path 61 of the fourth conveyance means 60, switched back, and switched between the front end side and the rear end side, and is transferred to the paper ejection roller in an inverted state. - La vs. 31a, 3
1b, the paper is stored face-up in the first storage section (internal tray) 32 and discharged.

Next, in the case of multiple copying, when the multiple copying key is pressed, the continuous reversing unit means 300 moves to the second storage section 80 of the stacking means as shown in FIG. When the paper is moved to position L2 corresponding to the pair of paper ejection rollers 81a and 81b arranged in One-sided copying is performed on the front side of the printed copy paper P.

At this time, the second gate 303 of the continuous reversing unit means 300 is switched to open the first guide path 301 and close the second guide path 302, so that the single-sided copy after copying is - The paper P is guided to the paper ejection path 30 side, which is the third transport means, by switching the first gate 29 provided downstream of the first paper ejection roller pair 28a, 28b, and then The paper is U-turned by the gate 303 of the paper sheet and is delivered to the second storage section (AD
The paper is temporarily stored face down in the D stacker) 80 and discharged.

When such one-sided copying is completed for the specified number of copies, as shown in FIG. - Return to the initial standby position L1 corresponding to the pair 31a, 31b.

Next, when the original is replaced and the copy key is pressed, the copy paper P stored in the second storage section 80 is
The pair of paper feed rollers 82a and 82b pass the paper through the paper feed path 24 of the first conveying means and the pair of registration rollers 25a and 25b, and again between the transfer device 5 disposed opposite to the photosensitive drum 3. The paper is conveyed while being guided, and the developed image developed by the developing device 4 is superimposed and transferred onto one side of the copy paper P by the transfer device 5, thereby making multiple copies possible.

Copy paper P subjected to multiple copies in this way
By switching the first gate 29 provided on the downstream side of the first paper ejection roller pair 28a, 28b again, the paper is guided to the paper ejection path 30 side, which is the third transport means, and passes through the second gate. 30
3, the paper is made a U-turn, and is stored face down in the first storage section (internal tray) 32 via a pair of paper ejection rollers 31a and 31b, and is ejected.

On the other hand, when performing double-sided copying, when the double-sided copying key is pressed, as shown in FIG. 11, the continuous reversing unit means 300
is the second storage section 80 of the stacking means as shown in FIG.
It moves to position L2 corresponding to the pair of paper ejection rollers 81a and 81b arranged at .

In this state, when the copy key is pressed, one-sided copying is performed on the front side of the copy paper P selected and fed from the first paper feeding means 22, 23 according to the paper size.

At this time, the second gate 303 of the continuous reversing unit means 300 is switched to close the first guide path 301 and open the second guide path 302. The single-sided copy paper P is conveyed to the switching path 61 of the fourth conveying means 60, switched back, and switched between the front end side and the rear end side, and is then passed through a pair of paper ejection rollers 81a and 81b in an inverted state. Second storage compartment (AD
The paper is temporarily stored face-up in the paper stacker (D stacker) 80 and then ejected.

When such one-sided copying is completed for the specified number of copies, as shown in FIG. 12, the continuous reversing unit means 300 transfers the sheets to the second paper ejection rotor of the first storage section 32 as shown in FIG. - Return to the initial standby position L1 corresponding to the pair 31a, 31b.

Next, when the original is reversed or replaced and the copy key is pressed, the copy stored in the second storage section 80 is copied.
The paper P is transferred to the paper feed path 24 of the first conveying means and the registration roller pair 25a by a pair of paper feed rollers 82a and 82b.
, 25b, the paper is again guided and conveyed between the photosensitive drum 3 and the transfer device 5 disposed opposite to it, and the developed image developed by the development device 4 is copied by the transfer device 5. - It is transferred to the back side of paper P, making double-sided copying possible.

[0064] Copy paper P that has been copied on both sides in this way
The paper is again guided to the paper ejection path 30 side, which is the third transport means, by switching the first gate 29 provided downstream of the first pair of paper ejection rollers 28a and 28b, and then transferred to the continuous reversing unit means. Switched back at 300, the pair of paper ejection rollers 31a
, 31b, the paper is stored face-up in the first storage section (internal tray) 32, and is ejected.

[0065]

As is clear from the above description, according to the present invention, the second conveyance means and the transfer means are supported movably in the direction away from the image carrier, and the second conveyance means and A permitting portion is formed in the apparatus main body to permit the separating operation of the transfer means, and the recording medium conveyed by the second conveying means is reversed by the third conveying means with respect to the permitting portion. Since the paper is stored and ejected in the first storage section formed in the permissible section in the apparatus main body, opening/closing due to movement of the second conveying means and transfer means in the direction away from the image carrier. The number of parts in the opening/closing mechanism is small, which makes the opening/closing unit compact, and there is no need to secure an extra installation space corresponding to the protrusion of the paper ejection tray as in the past.

[0066] Furthermore, since the second conveying means and the transfer means are designed to open and close, the originals placed on the original table or platen cover may fall onto the floor when clearing a jam. Never.

Furthermore, the recording medium transported by the third transport means is placed in a first storage section formed in a permissible section within the apparatus main body, and again placed facing the image carrier by the first transport means. and a second storage section serving as a stacking means for conveying between the transfer means and the transfer means for multiple copying or double-sided copying; Since the movement is controlled to the corresponding position in the storage section, only one set of fourth conveying means for switching back and reversing the recording medium is required, and it is possible to achieve a significant cost reduction.

Furthermore, by moving the initial standby position of the continuous reversing unit means to a position corresponding to the first storage section, it is possible to
This prevents wasteful movement of the transport means.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing an embodiment of an image forming apparatus according to the present invention.

FIG. 2 is a partially cutaway perspective view of the platen cover.

FIG. 3 is an explanatory diagram schematically showing the configuration of an image forming process means.

FIG. 4 is an explanatory diagram schematically showing the open state of the lower unit.

FIG. 5 is an explanatory diagram schematically showing the open state of the lower unit.

FIG. 6 is an explanatory diagram showing the moving state of the continuous reversing unit means.

FIG. 7 is an explanatory diagram showing the moving state of the continuous reversing unit means.

FIG. 8 is a flowchart showing a movement control state of continuous reversing unit means.

FIG. 9 is a flowchart showing a movement control state of continuous reversing unit means.

FIG. 10 is a flowchart showing a movement control state of continuous reversing unit means.

FIG. 11 is a flowchart showing a movement control state of continuous reversing unit means.

FIG. 12 is a flowchart showing a movement control state of continuous reversing unit means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Apparatus body, 2... Image forming process means, 2A... Upper unit, 2B... Lower unit, 200... Support means (shaft), 3... Image carrier (photosensitive drum), 5... Transfer means (transfer device), DESCRIPTION OF SYMBOLS 10... Document mounting table, 22, 23... First paper feeding means, 24... First conveying means, 26... Second conveying means,
29...first switching means, 30...third conveyance means, 32...
Discharged paper storage means (first storage section), 40... Gap, 60... Fourth conveying means (discharged paper switching and reversing means), 300... Continuous reversing unit means, 303... Second switching means, P... Recording medium (copy paper).

Claims (2)

[Claims] Claims: 1. The apparatus is transferred between an apparatus main body and a transfer means built in the apparatus main body, which forms an image on an image carrier and is arranged opposite to the image carrier, by means of a first conveying means. A recording medium stored in a first paper feeding means provided in the main body is guided and conveyed, an image formed on the image carrier is transferred to the recording medium by a transfer means, and then this recording medium is transferred to a first paper feeding means. an image forming process means that is conveyed to the downstream side by a second conveying means; and a support means that supports the image forming process means so that the image forming process means is movable in a direction in which the second conveying means and the transfer means are separated from the image carrier. , a permitting portion formed in the apparatus main body to permit the separation operation of the second conveying means and the transfer means by the action of the supporting means, and a recording medium discharge storage means formed in this permitting portion. a first storage section; a switching means for switching the recording medium transported by the second transporting means to a third transporting means and storing the recording medium; The recording medium conveyed by the conveying means No. 3 is temporarily stored in a second storing section formed at the lower part of the first storing section, and the recording medium is temporarily stored in a second storing section formed at the lower part of the first storing section, and the recording medium is transferred by the first conveying means to the image carrier disposed opposite to the image carrier. a stacking means for carrying out multiplex or double-sided copying by transporting the recording medium to the third transporting means; and a stacking means for carrying out multiple or double-sided copying by transporting the recording medium to the third transporting means; No. 4 to eject paper
2. An image forming apparatus comprising: a conveying means, wherein the fourth conveying means is movable to a position corresponding to the second storage section of the stacking means. 2. The first conveying means transfers the apparatus between the apparatus main body and a transfer means built in the apparatus main body, which forms an image on an image carrier and is arranged opposite to the image carrier. A recording medium stored in a first paper feeding means provided in the main body is guided and conveyed, an image formed on the image carrier is transferred to the recording medium by a transfer means, and then this recording medium is transferred to a first paper feeding means. an image forming process means that is conveyed to the downstream side by a second conveying means; and a support means that supports the image forming process means so that the image forming process means is movable in a direction in which the second conveying means and the transfer means are separated from the image carrier. , a permitting portion formed in the apparatus main body to permit the separation operation of the second conveying means and the transfer means by the action of the supporting means, and a recording medium discharge storage means formed in this permitting portion. a first storage section; a switching means for switching the recording medium transported by the second transporting means to a third transporting means and storing the recording medium; The recording medium conveyed by the conveying means No. 3 is temporarily stored in a second storing section formed at the lower part of the first storing section, and the recording medium is temporarily stored in a second storing section formed at the lower part of the first storing section, and the recording medium is transferred by the first conveying means to the image carrier disposed opposite to the image carrier. a stacking means for carrying out multiple or double-sided copying by transporting the recording medium to the third transporting means; and a stacking means for carrying out multiplex or double-sided copying by switching back and switching the recording medium transported to the third transporting means by the switching means and transferring the recording medium to the first storage section. No. 4 to eject paper
The fourth conveying means is movable to a position corresponding to the second storage section of the stacking means, and is configured to change its initial standby position to a position corresponding to the first storage section. An image forming apparatus characterized in that the image forming apparatus is arranged in a.