JPH01172170A - Image forming device - Google Patents

Abstract

PURPOSE:To aim at reducing the number of parts by forming a part of tray in the vicinity of a transfer medium discharge section within a device body, and by leading a transferred medium to be image-transferred into the tray or an image forming section with the use of a rotatable guide means. CONSTITUTION:A paper discharge tray 9 is mounted removably on the left side of a paper feed unit 11 by means of an engaging part 9a and an engaging port 140, and a paper guide 141 forming a part of the tray 9 is rotatably arranged in the vicinity of paper discharge rollers 32, 32a. When the paper guide 141 is turned to the right by means of a drive motor or the like, the paper guide 141 serves as a part of the tray 9 so as to lead a medium to be image- transferred discharged from the rollers 32, 32a into the tray 9. Meanwhile, when the paper guide 141 is turned to the right so as to connect its conveying path 141a to the outlet of the rollers 32, 32a, the medium to be image-transferred is fed into an image transferring section 31 in a device body 1. Thus, it is possible to reduce the number of part so as to simplify the arrangement thereof.

Description

Detailed Description of the Invention [Purpose of the Invention (Industrial Application Field) The present invention relates to an image forming apparatus such as an electronic copying machine, and particularly relates to an image forming apparatus that improves the handling of paper ejected from the main body of the apparatus. Regarding equipment.

(Prior Art) As is well known, in recent years, in addition to normal copying operations, it has become possible to perform, for example, multiple copying in which images are formed in multiple colors on one side of a sheet of paper, and double-sided copying in which images are formed on both sides of a document. An electronic copying machine has been developed.

This type of electronic copying machine has a paper transport unit installed in the main body of the copying machine, and this paper transport unit transports the paper with the original image formed on one side again to the image forming section of the main body of the copying machine. It has become.

A conventional paper conveyance unit has an abbreviated shape consisting of an upright portion and a horizontal portion. The upright portion faces the paper ejection roller of the copying machine main body, and is provided with a sorting gate and a paper ejection roller inside, and a paper ejection tray is provided on the outside. Further, the horizontal section is located at the bottom of the copying machine main body, and there are disposed inside thereof conveying rollers and the like that transport the paper guided from the upright section to the image forming section of the copying machine main body.

In such a configuration, during normal copying operations,
When the copying operation is finished and the paper is ejected from the copier,
The paper is discharged to the paper discharge tray via the sorting roller and the paper discharge roller.

Also, when performing multiple copying or double-sided copying, when the paper with the original image formed on one side is ejected from the copying machine,
The paper is taken into the horizontal section through the sorting gate, and conveyed to the image forming section of the main body of the copying machine by conveyance rollers in the horizontal section.

(Problems to be Solved by the Invention) By the way, the above-mentioned conventional paper conveying unit is provided with a sorting roller, a paper ejecting roller, and a drive device for driving these sorting rollers and paper ejecting roller in the upright part. ing. As a result, the thickness of the upright portion increases, resulting in an increase in the overall length of the copying machine body (the length including the paper cassette and paper ejection tray). Moreover, since there are many parts, the manufacturing cost is high.

This invention solves the problems associated with the increase in the size of paper transport units and the rise in manufacturing costs, and the purpose is to suppress the increase in the size of the device configuration and the increase in manufacturing costs. The present invention aims to provide an image forming apparatus.

[Structure of the Invention] (Means for Solving Problems) The present invention provides an image forming apparatus that refeeds a transfer material on which an image has been formed to an image forming means. A tray is provided, and the tray is rotatable between a first position, which constitutes a part of the tray, and which guides the transfer material discharged from the discharge section to the tray, and a second position, which guides the transfer material to the image forming means again. and a guide means.

(Function) According to the present invention, a part of the tray is provided near the transfer material discharge section of the main body of the apparatus, and a first position for guiding the transfer material discharged from the discharge section to the tray and an image forming means. 2nd to lead
By providing a rotatable guide means at the position, the number of parts can be reduced compared to the prior art, the structure can be simplified, and manufacturing costs can be reduced.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 2 schematically shows the appearance of the entire image forming apparatus.
The figure shows its internal configuration.

The apparatus main body 1 has built-in image forming process constituent means 2 such as charging, exposure, development, transfer, cleaning, and fixing. An automatic document supply/discharge unit device 4 for setting and discharging documents on the document placement glass 3 is provided, and an operation panel 5 is disposed at the edge of the top surface.

On the right side of the apparatus main body 1, there are a first paper feed cassette (hereinafter referred to as an upper cassette) 6 containing paper P such as plain paper to be supplied to the image forming process configuration means 2, and a second paper feed cassette (hereinafter referred to as an upper cassette). Hereinafter referred to as the lower cassette) 7 is installed. Further, a paper conveyance unit 11, which will be described later, is provided at the bottom of the apparatus main body 1. This paper transport unit 1
A large-capacity paper feeder 8 is attached to the right side of the printer 1, and a paper discharge tray 9 for collecting fixed sheets P is attached to the left side. Furthermore, a large-capacity paper feed device 8 is provided in the paper conveyance device 11.
A paper guide 141 is provided that guides the paper P fed from the main body 1 of the apparatus.

The image forming process configuration means 2 has the following configuration. That is, a drum-shaped photoreceptor 20 as an image carrier is arranged approximately in the center of the apparatus main body 1, and a charging device 21 is arranged around the photoreceptor 20 along its rotation direction.
, erasing device 22, exposure section 23a1 of exposure device 23, developing device 24, transfer device 25, peeling device 26, cleaning device 27,
Static eliminators 28 and the like are sequentially arranged.

Furthermore, along the inner bottom of the apparatus main body 1, a manual feed tray is provided which also serves as a cover for the paper P1 or the upper cassette 6, which is automatically fed from the upper cassette 6, the lower cassette 7, and the large-capacity paper feeder 8. A paper transport path 33 that guides the paper P manually fed through the photoreceptor 20 and the transfer device 25 to a pair of paper ejection rollers 32 provided on the left side of the apparatus main body 1 via an image transfer section 31 between the photoreceptor 20 and the transfer device 25. is formed.

An aligning roller pair 34 is arranged on the upstream side of the image transfer section 31 of the paper conveyance path 33, and a fixing device 35 is arranged on the downstream side.

Further, in the vicinity of the mounting portion of the upper cassette 6, there is a take-out roller 41 attached to a swingable arm 40 that takes out sheets P one by one, and a take-out roller 41 that receives the sheets P taken out through this take-out roller 41 and Separation conveyance means 42 consisting of a conveyance roller 42a and a separation roller 42b that feed into the first branch conveyance path 33a forming the upstream side of the paper conveyance path 30
A transport roller 42a and a separation roller 42b are arranged to separate the manually fed paper P from each other.
A manual feed roller 43 is provided to feed the paper into the first branch conveyance path 33a through a gap between the paper and the paper.

Further, in the vicinity of the installed portion of the lower cassette 7, there is a take-out roller 45 attached to a swingable arm 44 that takes out sheets of paper P one by one, and a take-out roller 45 that takes out sheets of paper P one by one and receives the sheets of paper P taken out via this take-out paper feed roller 45. A separation conveyance means 46 is provided which includes a conveyance roller 46a and a separation roller 46b, which feed the paper into a second branch conveyance path 33b forming the upstream side of the paper conveyance path 33.

Also, in the vicinity of the attached portion of the large-capacity paper feeder 8, there is a take-out roller 48 that is attached to a swingable arm 47 and takes out sheets of paper P one by one, and a take-out roller 48 that takes out sheets of paper P one by one. Separation conveyance means 4 consisting of a conveyance roller 49a and a separation roller 49b that receive and feed into the third branch conveyance path 33c forming the upstream side of the paper conveyance path 33.
9 are arranged.

Furthermore, a paper-out detection switch 50 and a paper size detection switch 51 that also serves to detect the presence or absence of a cassette are respectively disposed in the mounted portions of the upper cassette 6 and lower cassette 7, and the mounted portion of the large-capacity paper feeder 8. for,
A sensor (not shown) consisting of, for example, a light-receiving element is provided to detect the presence or absence of the large-capacity paper feeder 8 . Note that the large-capacity paper feeder 8 is provided with a paper out display section (not shown) consisting of, for example, a light emitting diode, and when the paper runs out and this light emitting diode is turned on, this is detected by the sensor. It looks like this.

On the other hand, a paper sensor for detecting the paper P conveyed via the branch conveyance paths 33a, 133b, and 33c is provided at the confluence of the branch conveyance paths 33a, 33b, and 33C, that is, near the upstream side of the aligning roller 34. 52 are arranged.

Further, the exposure device 23 illuminates a document set on the document placement glass 3 provided on the top surface of the main body 1 with an exposure lamp 61 whose back is surrounded by a reflector 60, and detects light reflected from the surface of the document. The light is guided to the lens 65 through the first mirror 62, the second mirror 63, and the third mirror 64 in order, and then the light transmitted through the lens 65 is guided to the fourth mirror 6.
6, a fifth mirror 67, and a sixth mirror 68 in order to lead to the photoreceptor 20.

The exposure lamp 61 and the first mirror 62 surrounded by the reflector 60 are mounted on a first carriage 69 that is movable back and forth along the lower surface of the document placement glass 3, and
The second mirror 63 and the third mirror 64 are
It is mounted on a second carriage 70 that moves in the same direction at half the speed of the carriage 69, and these carriages 69
．． 70 moves from the left to the right in the figure in the state shown in FIG. 3, so as to scan the original set on the original placing glass 3 and slit-expose an image corresponding to the original p onto the photoreceptor 20. It has become.

Incidentally, the first carriage 69 is equipped with a spotting unit 71 for specifying an area where there is document flaw, for example, when it is desired to make a copy while erasing that area.

The developing device 24 is composed of an upper developing unit 75 for color development and a lower unit 76 for black development, each of which is a magnetic brush type equipped with developing rollers 77 and 78. By selectively bringing them close and rotating them, it is possible to selectively develop black or other colors, such as red.

The cleaning device 27 brings a cleaning blade 80 into contact with the photoconductor 20 to scrape off the developer (toner) remaining on the photoconductor 20 and transfers the scraped developer (toner) to a casing 82 via an auger 81. It is configured to be carried outside and collected in a collection box (not shown).

The fixing device 35 has a heating roller 86 with a built-in heater lamp 85 and a pressure roller 87 that is urged to be in constant pressure contact with the heating roller 86, and these are surrounded by upper and lower casings 88 and 89. In addition, the pair of paper ejection rollers 32 and the paper ejection switch 90 are integrated.

Further, the charging device 21, the transfer device 25, and the peeling device 26 each include a corona discharge device, and the static eliminating device 28 irradiates the photoreceptor 20 with light from a static eliminating lamp 95 via a green filter 96. The structure is as follows. Further, the erasing device 22 has a large number of LEDs arranged in the length direction of the photoreceptor 20, and the spot unit 7
1. It is possible to erase the charges in the portion corresponding to the designated area.

A cooling fan 100 and a sub-main motor 101 are disposed above the fixing device 35 in the apparatus main body 1, and a portion of the paper conveyance path 33 is disposed between the peeling device 26 and the fixing device 35. A conveyor belt 102 forming a conveyor belt 102 is arranged.

Further, a high voltage transformer 103 is arranged below the conveyor belt 102, that is, at the bottom of the apparatus main body 1.

In addition, the automatic document supply/discharge unit device 4 is connected to the device main body 1.
The rear end side is hinged to allow rotation, and the document can be stacked on the document placement glass 3, which enables automatic feeding of the document, and allows copying of thick items such as books. The original document placement glass 3 can be retracted from the upper surface thereof. This automatic document supply/discharge unit device 4 includes a unit main body 110 that can be superimposed on the upper surface of the document placement glass 3, and a unit main body 110 that is provided on the right end side of the unit main body 110 to transfer the original document on the document feed table 111 to the unit main body 110. or from the unit main body 110 to the document feed tray 11.
1, and a supply/discharge mechanism section 112 for discharging onto a tray 124 provided on the upper surface side of the paper.

The unit main body 110 includes a platen cover 123, a document holding sheet 113 provided on the back side of the platen cover 123 and having a white surface facing the document placement glass 3, and a recess formed in the document holding sheet 113. The feed rollers 122 are rotatable in both forward and reverse directions, and as the feed rollers 122 rotate, the document sheets supplied from the supply/discharge mechanism section 112 are transferred onto the document placement glass 3. The document is taken in to a predetermined position, and the original document on the document placement glass 3 is discharged to the supply/discharge mechanism section 112. In addition, the supply/discharge mechanism section 112 takes out the lowermost document sheet of the document D... set on the document feed table 111 using the take-out roller 114, and the feed roller 115
and separation roller 116, and then the document is transferred to a sorting gate 117 located at the solid line position in FIG.
The document is fed into the unit main body 110 via the unit main body 110, and the document conveyed from the unit main body 110 is displaced to the guide 119, a pair of transport rollers 118 rotating in the ejection direction, and a device shown in two-dot chain line in FIG. The document is fed through the distribution gate 117 in the state, a guide 120 provided so as to surround the upper surface side of the supply roller 115, and a pair of ejection rollers 121 arranged in correspondence with this guide 120. Tray 12 placed on stand 111
The structure is such that it is discharged at 4.

The large-capacity paper feeder 8 attached to the main body 1 also has an elevator-type paper feeder 130 that can accumulate sheets of paper P all at once. The sheets P are sequentially taken out via a take-out roller 131 to a position facing the take-out roller 48 provided in the main body 1 of the apparatus. In this way, when a predetermined amount of paper P is taken out on the elevator-type paper feed tray 130, a signal is sent from a detector (not shown) to the elevating mechanism 132, and the elevator-type paper feed tray 130 is raised. The paper P is controlled to be at a position where it can be taken out by the take-out roller 131.

After setting the document tray on the document feed table 111 of the automatic document supply/discharge unit device 4, by operating the operation panel 5, the document can be placed from the automatic document supply/discharge unit device 4 onto the document placement glass 3. is set. Meanwhile, as the drum-shaped photoreceptor 20 rotates, the photoreceptor 20 is uniformly charged by the charging device 21 . Then, with the exposure lamp 61 of the exposure device 23 turned on, the exposure lamp 61 is turned on.
and a first carriage 69 carrying a first mirror 62
The second carriage 70 carrying the second mirror 63 and the third mirror 64 is set on the document placement glass 3 by moving from left to right in the figure along the lower surface of the document placement glass 3. The printed document is scanned and exposed to slit light, and an electrostatic latent image corresponding to the document is formed on the photoreceptor 20.

This electrostatic latent image on the photoreceptor 20 is developed and visualized by either the upper developing unit 75 or the lower developing unit 76 of the developing device 24.

On the other hand, in synchronization with this developer image forming operation, the paper P1 automatically taken out from the upper cassette 6, the lower cassette 7, or the large-capacity paper feeder 8, or the paper P manually fed from the manual paper feed tray 30, The developer image is sent to the image transfer section 31 via the aligning roller pair 34 and is formed on the photoreceptor 20 in advance, and is transferred onto the paper P by the action of the transfer device 25 .

Then, the paper P is peeled off from the photoreceptor 20 by the peeling device 26 and transferred to the conveyor belt 1 that forms part of the paper conveyance path 33.
02 to the fixing device 35, where the developer image is fused and fixed on the paper P, and then discharged to the paper discharge tray 9 via the paper discharge roller pair 32.

Note that the photoreceptor 20 after transferring the developer image onto the paper P is as follows.
By facing the cleaning device 27, residual developer (residual toner) is scraped off by the cleaning blade 80.
Next, the photoconductor 20 is removed by facing the static eliminator 28.
The electrostatic memory is removed by being irradiated with light, and the next copying operation is returned to a normal state.

Next, the configuration around the paper transport unit 11 and the paper discharge tray 9, which are the main parts of the present invention, will be further described.

.

′! As shown in FIG. B1, the paper discharge tray 9 is attached to the left side of the paper transport unit 11. As shown in FIGS. 3 and 4, this paper discharge tray 9 is configured such that its engagement portion 9a is engaged with an engagement opening 140 provided in the paper conveyance unit 11. It is said that it can be attached and detached freely.

Further, on the left side of the paper conveying unit 11, near the paper ejection rollers 32, 32a of the apparatus main body 1, a paper guide 141, which constitutes a part of the paper ejection tray 9, is provided. The paper guide 141 guides the paper ejected from the apparatus main body 1 to the paper ejection tray 9 or into the paper transport unit 11, and is rotatable with respect to the paper transport unit 11.

Furthermore, a conveyance path 142 is provided inside the paper conveyance unit 11.
A roller pair 143 is provided at one end of the conveyance path 142 for supplying the paper guided into the paper conveyance unit 11 by the paper guide 141 to the conveyance path 142. The other end of the conveyance path 142 is connected to a branch conveyance path 33c that guides the paper supplied from the large-capacity paper feeder 8 to the main body 1 of the apparatus. This conveyance path 14
A pair of rollers 144 and 14 for conveying the paper fed into the conveyance path 142 to the apparatus main body 1 is provided at the intermediate portion of the conveyance path 142 and at the other end thereof.
5 are provided respectively.

5 and 6 show the paper conveying unit 11 taken out.

The paper conveyance unit 11 includes covers 151 to 15-4 assembled into a rectangular shape, and these covers 151 to 154.
frames 155,156 located inside and attached to the cover 152,154, these frames 155,156
The transport unit 157 is attached to the transport unit 157. The frames 155 and 156 have mounting portions 155a, 155b, and 156a into which the legs of the device main body 1 are inserted.

156b is provided. Further, the transport unit 1
57 is provided with the paper guide 141, the transport path 142, and the roller pairs 143, 144, and 145, as well as a power source (not shown) such as a motor or a solenoid plunger for rotating the paper guide 141; and a housing section 15 in which a driving device (not shown) consisting of a motor etc. that drives the roller pair 143, 144, 145 is accommodated.
8 is provided.

When the paper transport unit 11 having the above configuration is shipped, the covers 151 to 154, frames 155 and 156, and transport unit 157 are disassembled as shown in FIG. 5, and the covers 151 to 154 and frames 155 and 156 are assembled. It is packed together with the transport unit 157.

In addition, when installing the device in the main body 1, assemble it from the state shown in FIG. 5 to the state shown in FIG. 6, and in this state,
The legs (not shown) of the device main body 1 are mounting portions 155a and 155b of frames 155 and 156.

156a, 156b so as to be inserted therein.

FIG. 7 shows the configuration of the control system. Control unit 16
1 performs overall control of the apparatus main body 1 and the paper conveyance unit 11, and this control section 161 includes an exposure lamp 61, a photoreceptor 20, a charging device 21, an erasing device 22, an exposure device 23, a developing device 24. , transfer device 25, peeling device 2
6, an image forming process means 2 consisting of a cleaning device 27, a static eliminator 28, a qualitative device 35, etc. is connected, and the image forming process means 2 performs required image forming operations under the control of the control section 161.

Further, a motor drive circuit 162 is connected to the control section 161, and this motor drive circuit 162 includes a motor 163 that drives a paper guide 141 provided in the paper transport unit 11, and a pair of rollers 143, 144. .1
A motor 164 that drives 45 is connected. These motors 163 and 164 are driven in accordance with the image forming operation of the main body 1 of the apparatus.

Next, the paper guide 14 accompanies the copying operation of the apparatus main body 1.
Operation 1 will be explained.

First, when a normal copying operation is set on the operation panel 5 of the apparatus main body, the paper guide 141 moves toward the paper ejection roller 32, 32a of the apparatus main body 1, as shown in FIGS.
The tray 9 is rotated away from the tray 9 and becomes a part of the paper discharge tray 9. In this state, the copying operation is performed, and the paper on which the original image has been formed is ejected from the apparatus main body 1 by the ejection rollers 32, 32a, and is placed on the paper guide 141 and the ejection tray 9 as shown in FIG. It is discharged.

On the other hand, when multiple copying is set on the operation panel 5, the paper guide 141 has its tip end near the paper ejection roller 32, 32a of the apparatus main body 1, as shown in FIGS. The end portion is rotated so that it is located near the roller pair 143. In this state, when a copying operation using, for example, the developing unit 76 is performed and the paper on which the original image has been formed is ejected from the apparatus main body 1 by the ejection rollers 32 and 32a, this paper is transferred to the paper guide 141. Conveyance path 14
It is guided to a pair of rollers 143 via 1a.

Then, the roller pair 143, 144, 145 transports the paper through the transport path 142 and guides it to the main body 1 of the apparatus. In the apparatus main body 1, when this paper is detected by the paper sensor 52, aligning rollers and the like are operated, and an image forming operation using, for example, a developing device 75 is performed on this paper.

Also, at this time, the paper guide 141 is
The paper is rotated to the position shown in the figure and the image is formed again.
The paper is ejected from the apparatus main body 1 by the paper ejection rollers 32, 32a, and accumulated on the paper ejection tray 9.

According to the above embodiment, the paper transport unit 11 is provided with the paper guide 11 that constitutes a part of the paper ejection tray 9, and the paper guide 141 is operated according to the copy mode set in the main body 1 of the apparatus. Paper ejection roller 3 of main body 1
2.32a guides the paper discharged to the paper discharge tray 9 or into the paper transport unit 11. Therefore, it is not necessary to provide a paper ejection roller in the paper transport unit 11 as in the conventional case, so that the paper transport unit 11 can be made flat and compact.

Moreover, since the paper ejection tray 9 is held at the boundary position between the paper transport unit 11 and the apparatus main body 1, it is substantially the same as when it is installed in the apparatus main body 1, and the upper and lower cassettes 6
．． The total length of the apparatus main body 1 including the paper output tray 7 and the paper discharge tray 9 can be made shorter than that of the conventional apparatus, and the installation area of the apparatus main body can be reduced.

Further, since it is not necessary to provide a paper ejection roller in the paper transport unit 11, the number of parts can be reduced, and manufacturing costs can be reduced.

Furthermore, the paper conveyance unit 11 is packaged in a disassembled state at the time of shipment, and is assembled at the time of use. Therefore, compared to packaging in an assembled state,
It is possible to reduce the size of the package and reduce transportation costs.Moreover, the strength against shock during transportation only needs to be maintained for each component, so the strength of the assembled state is lower than the conventional one. There is no need to make it as robust as in the case of a wafer, and manufacturing costs can be reduced.

In the above embodiment, the paper transport unit 1 for multiple copying is
Although the present invention has been described for the case where the present invention is applied to No. 1, the invention is not limited to this, and the present invention can also be applied to, for example, a paper conveyance unit capable of performing double-sided copying.

Furthermore, although the tray 9 is attached to the paper conveyance path unit 11, the tray 9 is not limited to this, and can also be attached to the main body 1 of the apparatus, for example.

It goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, there is provided a tray near the transfer material discharge section of the main body of the apparatus, which constitutes a part of the tray and guides the transfer material discharged from the discharge section to the tray. By providing rotatable guide means at the first position and the second position leading to the image forming means, the number of parts can be reduced compared to the conventional method, simplifying the configuration and reducing manufacturing costs. It is possible to provide an image forming apparatus that can be inexpensive.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the entire image forming apparatus, FIG. 2 is a perspective view of essential parts schematically showing the appearance of the entire image forming apparatus, and FIG. 3 is a side view of the entire image forming apparatus. , and FIG. 4 respectively explain the installation configuration of the paper output tray.
Fig. 3 is a perspective view of the main parts, Fig. 4 is a side view of the main parts, Fig. 5 is an exploded perspective view showing the paper transport unit, and Fig. 6 is an exploded perspective view showing the relationship between the paper transport unit and the main body of the device. , FIG. 7 is a schematic configuration diagram showing the control system, FIGS. 8 to 10 are shown to explain the operation of the paper guide, and FIGS. 8 and 9 are perspective views of the main parts, respectively. , FIG. 10 is a side view of the main part. DESCRIPTION OF SYMBOLS 1... Apparatus main body, 9... Paper discharge tray, 11... Paper transport unit, 141... Paper guide, 141a. 142... Conveyance path, P... Paper. Applicant's agent Patent attorney Takehiko Suzue Figure 2 Figure 6

Claims (4)

[Claims] (1) In an image forming apparatus that refeeds a transfer material on which an image has been formed to the image forming means, a tray provided near the transfer material discharge section of the apparatus main body and a part of this tray are used. An image forming apparatus comprising a guide means rotatable between a first position for guiding the transferred material discharged from the discharge section to the tray and a second position for guiding the transfer material to the image forming means again. Device. (2) The image forming apparatus according to claim 1, wherein the guide means has a conveyance path for guiding the transfer material. (3) The image according to claim 1, wherein the guide means is attached to a disassembled cover and a frame, and the cover and frame are packed in a disassembled state and assembled at the time of use. Forming device. (4) The tray is removably provided in the vicinity of the discharge section of the apparatus main body, as claimed in claim 1.
The image forming apparatus described in .