JP2003012214A - Image formation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of bad workability in removing a number of recording paper sheets remaining in an image formation apparatus at the occurrence of a paper jam. SOLUTION: A remaining paper sheet storage part is provided below a reverse paper feed part and the remaining paper sheets removed by a remaining paper sheet removal means are stacked in the storage part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus used in a copying machine, a facsimile, a printer, etc., and more particularly to a technique for processing residual paper remaining in the image forming apparatus when a jam occurs.

[0002]

2. Description of the Related Art In an image forming apparatus, it is difficult to completely eliminate jamming of recording paper. Therefore, the apparatus is designed on the assumption that a jam occurs, and is equipped with a jam processing mechanism when a jam occurs. ing.

Many image forming apparatuses are provided with a plurality of doors that are opened and closed for jam clearance, and all jammed paper can be removed by opening one of the doors. There is.

When a jam occurs, not only the jammed recording paper but also the normally conveyed recording paper remain in the image forming apparatus due to the jam stop. Not only the jammed chart but also other charts must be removed.

In order to facilitate the removal of such residual paper, the apparatus is constructed so that the recording paper storage section and the reverse sheet feeding section for back side image formation can be pulled out from the main body of the image forming apparatus. At the time of occurrence, the respective parts are pulled out from the image forming apparatus main body, and the recording paper remaining in the respective parts is removed.

[0006]

However, in the residual paper removing mechanism described above, in order to remove the residual paper,
There is a problem in that work is not good because it requires a great deal of work and, depending on the location of the residue, it is a form of removal work that removes the residual paper from underneath each of the pulled out parts.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the conventional residual paper removing mechanism and to provide an image forming apparatus capable of easily removing the residual paper.

[0008]

The above-mentioned objects of the present invention are as follows.
It is achieved by the following invention.

1. An image forming unit that forms an image on an image carrier, an image forming conveying unit that conveys recording paper to the image forming unit, and a reversing paper feeding unit that reverses and supplies the recording paper to the image forming conveying unit. In the image forming apparatus in which the image forming unit, the image forming conveyance unit, and the reverse sheet feeding unit are arranged in this order from the top, the residual paper remaining in the image forming apparatus stopped when a jam occurs An image forming apparatus comprising: a removing unit for removing and a residual paper storage unit disposed below the reversal paper feeding unit and storing the residual paper removed by the removing unit.

2. 2. The image forming apparatus according to 1, wherein a recording paper storage section is provided below the residual paper storage section.

3. 2. The image forming apparatus according to 1 above, further comprising a recording paper storage unit, and the residual paper storage unit is provided below the reversal paper supply unit and the recording paper storage unit.

4. The residual paper storage section is provided so as to be pulled out from the image forming apparatus main body.
The image forming apparatus according to any one of 1 to 3.

5. 5. The image forming apparatus according to any one of the items 1 to 4, wherein the reversal sheet feeding section and the remaining sheet storage section can be pulled out.

6. 6. The image forming apparatus as described in 5 above, wherein the residual paper storage portion and the reverse paper feeding portion can be integrally pulled out from an image forming apparatus main body.

7. 5. The reversing sheet feeding section and the remaining sheet storage section can be independently pulled out.
The image forming apparatus according to item 1.

8. 2. The image forming apparatus according to 1 above, wherein the reversal sheet feeding unit is provided so as to be pulled out from the main body of the image forming apparatus, and the reversing sheet feeding unit is provided with a scraping-out unit that scrapes out the residual paper in the residual paper storage unit. apparatus.

9. 2. The image forming apparatus according to 1 above, further comprising a holding unit that holds the residual paper removed by the removing unit.

10. 10. The image according to 9, wherein the holding unit includes a pair of rollers that can be brought into contact with and separated from each other, and the residual paper is passed between the rollers while being separated from each other, and is in contact with the residual paper to hold the residual paper between the rollers. Forming equipment.

11. 10. The image forming apparatus as described in 9 above, wherein the holding unit includes pressure-contacting portions that are in pressure-contact with each other, and is constituted by a holding member made of an elastic body that holds the residual paper between the pressure-contacting portions.

12. An image forming unit that forms an image on an image carrier, an image forming conveying unit that conveys recording paper to the image forming unit, and a reversing paper feeding unit that reverses and supplies the recording paper to the image forming conveying unit. In the image forming apparatus having
An image forming apparatus comprising: a removing unit for removing residual paper; and a residual paper storage unit provided on a switchback transport path of the reversal paper feeding unit.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <Image Forming Apparatus> An image forming apparatus according to an embodiment of the present invention will be described with reference to FIG.

In FIG. 1, a document feeding means 1 is provided in the upper part of the main body of the copying machine, sends out the documents one by one, conveys the documents to an image reading position, and discharges the document after the image reading. Is. The document conveying means 1 includes a document feeding table 11 on which a document is placed, a document separating means 12 for separating a document placed on the document feeding table 11, and a platen for conveying the documents separated by the document separating means 12. Document ejection means 1 for ejecting the document conveyed by the roller 13 and the platen roller 13.
4, a document discharge tray 15 for receiving and placing the document discharged by the document discharge unit 14, and a document reversing unit 16 for reversing the front and back of the document when reading images on both sides of the document. is doing.

A plurality of originals placed on the original feeding table 11 are separated by the original separating means 12 and conveyed one by one. The document separated and conveyed by the document separating unit 12 is conveyed by the platen roller 13 and passed through the slit 21 by the reading unit 2 provided below.
The original image is read. The document from which the image has been read is discharged onto the document discharge tray 15 by the document discharge means 14. When reading the images on both sides of the original, the original whose image has been read is turned upside down by the original inverting means 16 and is conveyed again by the platen roller 13, and the original is passed through the slit 21 by the image reading means. The image on the back side is read. Then, the document from which the image on the back side is read is discharged onto the document discharge tray 15 by the document discharge means 14. Such steps are repeated for the number of originals placed on the original feed table 11, and the image of the original is read.

Further, the document feeding means 1 is constructed to be integrally foldable, and the document is placed on the platen glass 22 by raising the document feeding means 1 to open the platen glass 22. Is configured to be able to. That is, in the present embodiment, there are prepared a mode in which the image of the original is read while the original is conveyed by the platen roller 13 and a mode in which the image is read while the original remains stationary on the platen glass 22.

The reading unit 2 is a means for reading an image on a document to obtain image data, and is provided in the upper part of the main body of the image forming apparatus. The reading unit 2 is a slit 21 that is a slit-shaped opening for reading an image of a document being conveyed by the platen roller 13 of the document conveying unit 1, and a document placing table for placing (standing) the document. A platen glass 22, a lamp 231 which is a light source for illuminating an original, and a first mirror unit 23 which integrates a first mirror 232 for reflecting the reflected light from the original, and a first mirror unit 23 for reflecting the light from the first mirror 232. 2 mirror 241 and 3rd mirror 24
V mirror unit 24 that integrates 2 and slit 2
1. An image signal obtained by photoelectrically converting the light image formed by the image forming lens 25 and the image forming lens 25, which is an image forming means for forming an image of reflected light from the original on the platen glass 22 or the platen glass 22 on the CCD 26. Line-shaped CCD 26 for outputting
have.

When the reading section 2 reads a moving document fed by the document feeding means 1, the first mirror unit 23 and the V mirror unit 24 are at the left end position in FIG. 23 is located below the slit 21. Then, the document conveyed on the slit 21 by the platen roller 13 is transferred to the lamp 231.
The light reflected by the document is incident on the CCD 26 via the first mirror 232, the second mirror 241, the third mirror 242, and the imaging lens 25. The CCD 26 photoelectrically converts the light incident upon main scanning, but since the original is moved in the sub scanning direction by the platen roller 13, the image on the entire surface of the original is read. The image information read by the CCD 26 is appropriately subjected to image processing and provided to the exposure device 33.

Further, when reading a still original placed on the platen glass 22, while moving the first mirror unit 23 and the V mirror unit 24 along the platen glass 22 in the right direction in FIG. , The image of the original can be read. In this reading, the first mirror unit 23 moves over substantially the entire length of the platen glass 22, and the V mirror unit 24 moves at a speed half that of the first mirror unit 23 and a half distance.

The image forming section 3 is means for forming an image on a recording sheet being conveyed at a predetermined speed based on the image data obtained by the reading section 2. Image forming unit 3 of the present embodiment
Forms an image using an electrophotographic process. The image forming unit 3 has a photoconductor drum 31 as an image carrier having a photoconductive photosensitive layer and carrying a toner image, and a charger 3 as a charging unit for uniformly charging the photoconductor drum 31.
2. Based on the image information read by the CCD 26, the exposure device 33 which is an image writing means for exposing and scanning the photosensitive drum 31 to form a latent image, the latent image on the photosensitive drum 31 is developed, and toner is developed. Developing device 3 which is a developing means for forming an image
4, transfer means 35 for transferring the toner image carried on the photoconductor drum 31 onto the recording paper which is separately conveyed, separation means 36 for separating the recording paper on which the toner image has been transferred from the photoconductor drum 31, It has a cleaning means 37 for removing the toner remaining on the photosensitive drum 31 after being transferred, and a fixing means 38 for fixing the toner image on the recording paper. Then, around the photosensitive drum 31, a charger 32,
Exposure device 33, developing device 34, transfer means 35, separation means 3
6 and cleaning means 37 are arranged.

The photosensitive drum 31 is rotated by a driving means (not shown), uniformly charged by the charging device 32, imagewise exposed by the exposure device 33, and developed by the developing device 34.
A toner image is formed based on the image information read by the CCD 26.

The paper feeding unit 4 supplies the recording paper to the image forming unit 3. The paper feed unit 4 includes a reverse paper feed unit 100 and recording paper storage units 4A to 4A.
It consists of 4C.

The carrying section 5 is a carrying means for carrying the recording paper from the paper feeding section 4 to the image forming section 3, and is a carrying-out section 51A, 5A.
1B and 51C, intermediate conveyance rollers 541 to 543, registration rollers 56, and conveyance unit 40.

A substantially horizontal conveyance path including a transfer position for transferring an image onto a recording sheet, such as a conveyance path in which the registration roller 56, the drum front conveyance roller 39, and the conveyance unit 40 of the conveyance section 5 are installed. It is a transport unit for formation.

The toner image formed on the photosensitive drum 31 by developing the latent image formed by the exposure device 33 by the developing device 34 is transferred onto the recording paper conveyed to the transfer means 35. The recording paper on which the toner image has been transferred is separated from the photoconductor drum 31 by the separating means 36 and conveyed to the fixing means 38. In the fixing means 38, the heat source 38C
Heating roller 38A and pressure roller 38B heated by
The toner image is fixed on the recording paper by the action of heating and pressurization. On the other hand, the photoconductor drum 31 on which the toner image has been transferred onto the recording paper continues to rotate, and the toner remaining on the photoconductor drum 31 is removed by the cleaning unit 37 to be used for the next image formation.

In this embodiment, the photosensitive drum 3
In the vicinity of the photosensitive drum 31 between the registration roller 56 and the registration roller 56, a drum front conveyance roller 39 that conveys the recording paper sent from the registration roller 56 is provided, which contributes to increasing the recording paper conveyance force. . Also, the separating means 36
And a fixing unit 38, a conveyance roller that supports and conveys the lower surface side (the side opposite to the side on which the image is formed) of the recording paper in order to convey the recording paper separated by the separation unit 36. A transport unit 40 including a belt is provided.

The sheet discharging / re-feeding means 6 is a means for discharging or re-feeding the recording sheet image-formed by the image forming section 3 on the recording sheet conveyed by the conveying section 5. The paper ejecting / re-feeding means 6 may be one in which the recording paper having the toner image fixed thereon is ejected from the fixing means 38, and the recording paper ejected by the fixing ejection roller 61 is directly ejected from the apparatus. Switching means 62 for switching the conveyance path between the case of discharging after reversing the front side and the case of re-feeding to form an image on the back side, a discharge roller 63 for discharging the recording paper to the outside of the machine, and a side surface of the copying machine. It has a paper discharge tray 64 for stacking the recording paper discharged by the paper discharge roller 63 provided in the.

When the recording paper on which an image is formed is to be discharged face up, that is, when the surface on which the image is formed is to be discharged, the recording paper is guided by the switching means 62, and the fixing discharge roller 61 and the discharge roller are provided. The sheet is discharged to a sheet discharge tray 64 outside the machine by 63. When the recording sheet on which an image is formed is discharged face down, that is, when the recording surface on which the image is formed is discharged, the switching unit 62 is switched to guide the recording sheet conveyed by the fixing discharge roller 61. Once the recording sheet is conveyed in the direction of the reverse sheet feeding section 100 and passes through the switching means 62, the conveying direction is reversed and the recording sheet is discharged by the sheet discharge roller 63 to the sheet discharge tray 64 outside the apparatus.

On the other hand, when an image is formed on the back surface of the recording paper, the switching means 62 is positioned at the position shown by the solid line in FIG.
The sheet is conveyed to the reverse sheet feeding unit 100, and is turned upside down by switchback conveyance in the reverse sheet feeding unit 100. Then, the sheet is fed from the reverse sheet feeding unit 100 into the conveyance path having the loop forming roller 55, and fed from the recording sheet storage unit 4. Like the paper, the paper is conveyed to the image forming unit 3.

<Stuck Paper Removing Device> A residual paper removing device in the image forming apparatus according to the embodiment of the present invention will be described with reference to FIG. FIG. 2 is a diagram showing a residual paper removing device used in the reverse paper feeding unit 100.

As shown in FIG.
An image forming transport unit (transport unit 40, fixing unit 3) that transports recording paper in the image forming unit 3 and the fixing unit 38.
8 and the like), and the reverse conveyance unit 10
Recording paper storage units 4A to 4C are arranged below 0. Then, the residual paper storage unit 200 is arranged between the reverse conveyance unit 100 and the recording paper storage units 4A to 4C.

In addition to the configuration shown in the drawing, it is also possible to arrange the image forming transport section, the recording sheet storage sections 4A to 4C, the reversal transport section 100 and the residual sheet storage section 200 in this order. Further, the image forming conveyance section, the recording sheet storage sections 4A to 4C, the reverse conveyance section 100, and the residual sheet storage section 20.
It is also possible to adopt a configuration in which 0s are arranged in this order from the top.

The recording paper discharged from the fixing device 38 shown in FIG. 1 is guided downward by the switching guide member 62 and is sent to the reversing paper feeding section 100.

Reference numeral 101 denotes a reversing conveyance roller, and in the paper ejection mode in which the recording paper is ejected face down, the reversal conveyance roller 101 conveys the recording paper conveyed from the fixing device 38 downward, and then the rear end portion. Is the reverse conveyance roller 101
When the sheet reaches, the conveyance direction is reversed and the recording sheet is conveyed upward and discharged. Reference numerals 102, 104, 105 and 106 denote intermediate conveying rollers. Reference numeral 103 denotes a reversing conveyance roller, which conveys the recording paper to the right, and when the rear end reaches the reversal conveyance roller 103, reverses the conveyance direction and conveys it to the intermediate conveyance roller 104.

In the back side image formation, the recording paper which has passed through the fixing device 38 is conveyed to the reversing conveyance roller 103 by the reversing conveyance roller 101 and the intermediate conveyance roller 102, and is switchback conveyed by the reversing conveyance roller 103 to reverse the front and back sides. , Intermediate conveying rollers 104, 105, 1
It is conveyed to the registration roller 56 by the 06 and the loop forming roller 55. As described above, an image is formed on the back surface of the recording paper by the synchronous conveyance of the registration rollers 56.

When a jam occurs in the double-sided image forming process, the image forming apparatus stops at the time of occurrence of the jam. Therefore, in addition to the jammed recording sheet, the recording sheet that is normally conveyed is also in the image forming apparatus. Remains in. In particular, a plurality of sheets of recording paper remain in the reversing paper feeding unit 100.

In the present embodiment, the reverse sheet feeding section 10 is used.
2 is provided below 0. When a jam occurs, the reverse conveyance rollers 101 and 103 and the intermediate conveyance roller 102 are driven by the motor M1 to remove the residual paper P from the sheet shown in FIG.
Is conveyed to discharge the residual paper P to the residual paper storage tray 201, and the intermediate conveyance rollers 104 to
106 is driven by a motor M2 to move the residual paper P to an arrow X.
The sheet is conveyed as indicated by 2 and discharged to the residual paper storage tray 201 of the residual paper storage unit 200. As a result, all the residual paper P remaining in the reverse paper feeding unit 100 due to the stop of the image forming apparatus when a jam occurs is discharged to the residual paper storage tray 201 and accumulated.
In this way, by providing the residual paper storage unit 200 in the switchback transport path where the recording paper is switched back by the reverse transport roller 103, all the residual paper in the reverse transport unit 100 is accumulated in the residual paper storage tray 201. It

The residual paper P in the reverse paper feeding unit 100
When the jam occurs in the double-sided image forming mode, the control is performed to stop the image forming apparatus and the motors M1 and M2 are activated after a predetermined time has elapsed since the image forming apparatus was stopped.

Alternatively, a residual paper removal button may be provided on the operation unit, and the operator may operate the button to activate the motors M1 and M2 to remove the residual paper. In order to remove the residual paper by such operator's operation, the status of the residual paper is displayed on the operation unit,
It is desirable that the operator instructs the removal of each part where the residual paper exists according to the display.

As described above, the reversal conveyance section 100 is used.
The residual paper P remaining on the paper is removed by the reverse transport rollers 101, 103 and the intermediate transport rollers 102, 104, 105, 106 driven by the motors M1, M2, and these rollers and the motors M1, M2 serve as removal means. Constitute.

The reverse sheet feeding section 100 and the residual sheet storage section 200, which are indicated by dotted lines, are constructed so that they can be pulled out integrally or individually from the image forming apparatus main body, and the residual sheets accumulated in the residual sheet storage tray 201 are retained. The paper P can be taken out from the image forming apparatus.

FIG. 3 is an exploded perspective view of another example of the residual paper removing device, and FIG. 4 is formed by virtual lines L1 and L2 viewed from a direction Y perpendicular to the pull-out direction of the reversal paper feeding section 100 in FIG. It is a figure of a residual paper discharge process shown by a sectional view along a plane. As shown, the directions X3, Y, Z are forward, backward, left and right,
It is the direction in the upper and lower rectangular coordinates. FIG. 4 shows a process of discharging the residual paper P. Note that FIG. 3 shows the residual paper removing device excluding the guide forming the reverse conveyance path. In this example, the reversal sheet feeding unit 100 can be pulled out from the main body of the image forming apparatus, while the residual paper storage unit 200 is fixedly provided in the main body of the image forming apparatus. The frame 110 that constitutes the reversal sheet feeding unit 100 is provided with projecting portions 110A and 110B as scraping means. On the other hand, the remaining paper storage tray 201 has a protrusion 1
Notches 201A and 201B corresponding to 10A and 110B
Is provided. By pulling out the reverse sheet feeding unit 100 from the image forming apparatus main body as shown by an arrow X3, the residual paper P in the residual paper storage tray 201 is scratched by the protrusions 110A and 110B as shown in FIG. 4B. Will be issued. 11
1A is disposed on the side facing the frame 110 and the reverse sheet feeding unit 10 is provided.
It is a lid provided on the frame 111 forming 0, forms a storage wall of the residual paper storage tray 201, and is retracted when the reverse paper feeding unit 100 is pulled out.

FIG. 5 is a diagram showing still another example of the residual paper storage unit 200. Reference numerals 103A and 103B correspond to the reverse conveyance roller 103 in the figure, and the reverse conveyance rollers 103A and 1B
By 03B, the switchback conveyance at the time of forming the back side image and the discharge conveyance at the time of removing the residual paper are performed.

Reference numerals 112A and 112B are holding rollers for holding the residual paper P. At the start of the operation of removing the residual paper P,
Holding roller 112A. , 12B as shown in FIG.
The remaining papers P are separated from each other and the reversal conveyance roller 103
It is conveyed by A and 103B and passes between the holding rollers 112A and 112B. Reverse conveyance roller 103A,
The sensor S detects the passage of the trailing edge of the residual paper P conveyed rightward in FIG. 5 by 103B, and the holding rollers 112A and 112B contact the residual paper P as shown in FIG. 5B based on the detection signal. Hold P.

As a result of the reversal conveyance rollers 103A and 103B rotating while the residual paper P is held, the trailing edge (left end in FIG. 5) of the residual paper P follows the reversal conveyance roller 103B and the reversal conveyance roller 103B moves. Orbiting the circumference, Figure 5
As shown in (b), the trailing edge of the residual paper P is the reverse conveyance roller 10
It is held between 3B and the holding member 113 made of an elastic body. Reference numeral 114 is a stopper that regulates the rear end of the residual paper P.

The trailing edge of the residual paper P is the reverse conveyance roller 103B.
And the holding member 113, the holding roller 1
12A and 112B are separated from each other to be in the state of FIG. 5C, and the next residual paper P can be stored.

With the configuration of the residual paper storage unit 200 described above, it is possible to smoothly store a large number of residual papers P.

FIG. 6 is a diagram showing another example of the residual paper storage unit 200. Holding members 115A and 115B made of an elastic body are provided on both upper and lower sides of the reverse conveying rollers 103A and 103B. The holding members 115A and 115B are installed so that the right ends thereof are in pressure contact with each other. As shown in FIG. 6A, the residual paper P is transported by the reversal transport rollers 103A and 103B, but when the trailing edge is separated from both rollers, the residual paper P is held by the holding members 115A and 115B and stopped. To do. The rear end (left end in the figure) of the stopped residual paper P follows the rotating reversing conveyance roller 103B and orbits the reversing conveyance roller 103B, and as shown in FIG. It is stopped by being held by the holding member 113 composed of a body and the stopper 114. In the state shown in FIG. 6B, the next residual paper P can be stored, and the next residual paper P is fed by the reverse conveyance rollers 103A and 103B.
Is sent to the residual paper storage unit 200. In order to stably perform the operation in which the trailing edge of the residual paper P follows the reverse conveying roller 103B, the reverse conveying rollers 103A and 1
Holding members 115A and 115B rather than the nip R between O3B
It is desirable that the residual paper holding position Q between and is set downward.

[0057]

According to the first, second, third, or twelfth aspect of the present invention, when the jam occurs, the residual paper remaining in the reverse paper feeding portion for the back side image formation is accumulated in the residual paper storage portion, so that the residual paper is image-formed. The operation of removing from the device becomes extremely easy. Further, when the image forming apparatus is stopped due to the jam, it is possible to operate the image forming apparatus and restart the image formation simply by removing the jammed paper.

According to the invention of claim 4 or 8, it becomes possible to take out the residual paper from the image forming apparatus by an extremely simple operation.

According to any one of claims 5 to 7, 1
It is possible to take out the jammed recording paper and the residual paper left by the stoppage at the time of jamming from the image forming apparatus by the pulling-out operation twice, and the operability of the processing is improved when the jam occurs.

According to the invention of any one of claims 9 to 11,
The remaining paper can be stored smoothly. as a result,
It becomes possible to store a large number of residual papers in the residual paper storage unit, and it is not necessary to take out the residual papers from the image forming apparatus every time a jam occurs.

[Brief description of drawings]

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

FIG. 2 is a diagram showing a residual paper removing device in the image forming apparatus according to the embodiment of the present invention.

FIG. 3 is an exploded perspective view of another example of the residual paper removing device.

FIG. 4 is a diagram of a residual paper discharging process.

FIG. 5 is a diagram showing still another example of the residual paper storage unit.

FIG. 6 is a diagram showing still another example of the residual paper storage unit.

[Explanation of symbols]

4 Paper feeder 100 Reverse feed section 101, 103 reverse conveyance roller 102, 104, 105, 106 Intermediate transport roller 112A, 112B holding roller 115A, 115B holding member 200 Residual paper storage 201 Residual paper storage roller

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G03G 15/00 526 G03G 15/00 526 3F053 21/00 500 21/00 500 3F052 21/16 15/00 554 3F100 (72) Inventor Kazuyoshi Kura, 2970 Ishikawa-cho, Hachioji, Tokyo Konica stock company (72) Inventor Kazunori Katada 2970, Ishikawa-cho, Hachioji, Tokyo Konica stock (72) Inventor, Tomio Suzuki Tokyo 2970 Ishikawa-cho, Hachioji Konica Stock F-term in the company (reference) 2H027 DC14 ED17 EK03 EK10 2H028 BA06 BA09 BA12 BB04 2H071 AA35 AA38 EA04 2H072 AB07 BA03 BA12 BB08 CA01 CA02 CA05 CB09 EA11 3F014 A12 AB02 A04 A05 A02 A04 A05 A02 A04 EB24 EB28 3F053 BA03 BA18 LA03 LA05 LA07 LB03 3F054 AA01 AC02 AC03 AC05 BA02 BC02 BC08 CA08 CA21 CA33 CA36 3F100 AA02 BA14 CA03 CA11 EA11 EA13 EA14

Claims (12)

[Claims] 1. An image forming unit for forming an image on an image carrier, an image forming conveying unit for conveying recording paper to the image forming unit, and a recording paper which is turned upside down and supplied to the image forming conveying unit. In the image forming apparatus, which has a reverse sheet feeding section, which is arranged in the order of the image forming section, the image forming transport section, and the reverse sheet feeding section from above, in the image forming apparatus stopped when a jam occurs. An image forming apparatus comprising: a removing unit that removes residual residual paper; and a residual paper storage unit that is disposed below the reversal paper feeding unit and that stores the residual paper removed by the removing unit. 2. The image forming apparatus according to claim 1, wherein a recording paper storage section is provided below the residual paper storage section. 3. The image forming apparatus according to claim 1, further comprising a recording paper storage unit, wherein the residual paper storage unit is provided below the reversal paper supply unit and the recording paper storage unit. . 4. The residual paper storage portion is provided so as to be pulled out from the image forming apparatus main body.
The image forming apparatus according to any one of 1 to 3. 5. The image forming apparatus according to claim 1, wherein the reversal paper feeding unit and the residual paper storage unit can be pulled out. 6. The image forming apparatus according to claim 5, wherein the residual paper storage unit and the reverse paper feeding unit can be integrally withdrawn from the image forming apparatus main body. 7. The reversing sheet feeding section and the remaining sheet storage section can be independently pulled out.
The image forming apparatus according to item 1. 8. The reversing sheet feeding unit is provided so as to be pulled out from the main body of the image forming apparatus, and the reversing sheet feeding unit is provided with a scraping-out unit that scrapes out the residual paper in the residual paper storage unit. 1. The image forming apparatus according to 1. 9. The image forming apparatus according to claim 1, further comprising a holding unit that holds the residual paper removed by the removing unit. 10. The holding means is composed of a pair of rollers that can be brought into contact with and separated from each other, and the residual paper is passed between the rollers while being separated from each other
The image forming apparatus according to claim 9, wherein the residual paper is held between the rollers in contact with each other. 11. The holding member according to claim 9, wherein the holding means includes pressure-contacting portions that are in pressure-contact with each other, and is constituted by a holding member made of an elastic body that holds the residual paper between the pressure-contacting portions. Image forming apparatus. 12. An image forming section for forming an image on an image carrier, an image forming conveyance section for conveying recording paper to the image forming section, and a recording sheet which is turned upside down and supplied to the image forming conveyance section. An image forming apparatus having a reversing sheet feeding section for removing residual paper and a residual sheet storage section provided in a switchback conveyance path of the reversing sheet feeding section.