JPH01172154A - Image forming device - Google Patents

Abstract

PURPOSE:To shorten the travel time of a document by aligning the rear end of documents fed from a document setting surface from a paper feed section by use of a stopper so as to position the document, and by moving the document in the reverse direction after scanning the document so as to discharge the same into a paper discharge section. CONSTITUTION:An original on a paper feed bed 100, is fed onto a document setting glass pane 3 by means of rollers 101, 107, 108, a pair of rollers 105, and a feed roller 93 in a document feed means 99. When the trailing end of the document comes to a position slightly after a movable stopper 104, the document feed means 99 is reversed so as to make the trailing end of the document abut against the movable stopper 104 for positioning the document. After completion of scanning by an exposure means, the movable stopper 104 is retracted so as to move a direction change-over gate 106 upward, and the document feed means 90 is driven in the direction reverse to the paper feed direction so as to allow the document D to pass between the pair of rollers 105, over the upper surface of the gate 106, over the upper periphery of the roller 107 and between a pair of the roller 102, and thereafter the document D is discharged onto a paper discharge bed 103. Thereby it is possible to shorten the travel distance or time of the document.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Industrial Application Field) The present invention relates to an image forming apparatus such as an electronic copying machine, and more particularly to an image forming apparatus equipped with an automatic document supply/discharge unit.

(Prior Art) A PPCm copying machine has a document placement surface (usually a platen glass) for placing a document during scanning, and an exposure means for scanning the document on this document placement surface. Also, charging, exposure, and development are performed inside the device body.

An image forming process (one built-in means for image forming) that performs transfer, cleaning, fixing, etc.

In addition, in a device having an automatic document feed/discharge unit (auto document feeder), there is a paper feed tray that collects documents before scanning, and a paper output tray that stores documents after scanning.
The document feeder is provided with a document feeding means that feeds the documents on the paper feed tray one by one onto the document placement surface and discharges the scanned documents onto the paper discharge tray. This document feeding means often uses a conveyor belt that runs endlessly in contact with the document placement surface. This conveyance belt is also used as a platen sheet to hold down the original.

Further, the conventional automatic document supply/discharge unit includes a stopper for regulating the position of the document on the document placement surface. This stopper is vertically movably provided at the front end of the document placement surface, that is, at a position opposite to the paper feed table (front side in the document feeding direction), and is capable of moving up and down when the document is fed onto the document placement surface by the belt. When the front end of the document hits the stopper, the document is set in a predetermined position. After scanning, the document is moved past the stopper in the same direction as when it was supplied by lowering the stopper, and is guided onto the paper ejection tray.

(Problem to be Solved by the Invention) Therefore, in the conventional device described above, in order for the document to be positioned by the stopper, the front end of the document fed from the paper feed table must be at one end of the document placement surface (paper feed side). It must be moved from one end to the other end (paper ejection side). Furthermore, the entire document crosses the entire length of the document placement surface between the time it is scanned and the time it is ejected. Therefore, regardless of the size of the original, the distance to transport the original is long, which not only requires a fairly large endless belt and a large-scale belt drive mechanism, but also the time required from feeding to ejecting the original. It is also a factor that makes it longer. Furthermore, since the distance from when the document is fed onto the document placement surface until it hits the stopper is long, there is a problem in that it takes time before scanning can be started. These problems are more pronounced as the size of the document is smaller compared to the width of the document placement surface.

The present invention has been made based on the above circumstances, and its purpose is to shorten the distance the document must be moved from feeding the document onto the document placement surface to positioning, scanning, and ejecting the document. An object of the present invention is to provide an image forming apparatus that is capable of providing an image forming apparatus.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides an image forming apparatus having a built-in exposure means for scanning an original placed on an original placing surface, A paper feed section that can place multiple sheets of originals at once; a paper ejection section that is provided on the same side as the paper feed section; A document presser that is lowered when scanning a document on a surface, and a document feeder that feeds the document on the paper feed section one by one onto the document placement surface and discharges the scanned document to the paper discharge section. and a stopper that is arranged near the end of the document placement surface on the side of the paper feed section and the paper discharge section and is capable of aligning the rear edge of the document fed onto the document placement surface. It is.

(Function) In the apparatus of the present invention having the above configuration, when a document is fed from the paper feed section onto the document placement surface, the document is positioned by aligning the trailing edge of the document with the stopper.

This document is pressed between the document placement surface and the document presser, and in this state scanning is performed by the exposure means. After scanning, the document is fed in the opposite direction to the direction in which it was fed, and is ejected to the paper ejection section.

(Example) An example of the present invention will be described below with reference to the drawings.

FIG. 8 schematically shows the overall appearance of a PPC copying machine as an example of an image forming apparatus, and FIG. 1 shows its internal configuration.

In the figure, reference numeral 1 denotes an apparatus main body, and this apparatus main body 1 includes charging, exposure, and development.

Image forming process configuration means 2 for performing transfer, cleaning, fixing, etc. is built-in. On the top side of the main body 1 of the apparatus, there is provided a document placement glass 3 used as a document placement surface, and also for supplying a document onto the document placement glass 3 and ejecting the document after scanning. An automatic document supply/discharge unit 4 is provided. This automatic document supply/discharge unit 4 will be described later. An operation panel 5 is arranged at the front edge of the upper surface of the apparatus main body 1.

On the right side of the apparatus main body 1, there are a first paper cassette (hereinafter referred to as an upper cassette) 6 and a second paper cassette (hereinafter referred to as an upper cassette) that accommodate paper P such as plain paper to be supplied to the image forming process configuration means 2. , a lower cassette) 7, and a large-capacity paper feeder 8 are installed. A paper output tray 9 is installed on the left side of the apparatus main body 1 to collect fixed paper P', and the paper P' discharged from the apparatus main body 1 is guided to the paper output tray 9 in an inverted state. U-turn unloading path 1
0 is installed. This paper delivery unit 11 has a conveying means 12 using rollers or the like. Therefore, the sheets P' that have passed through the U-turn conveyance path 10 are sequentially discharged into the paper discharge tray 9 with the front and back sides reversed.

The apparatus main body 1 is composed of an upper unit 1a and a lower unit 1b. The image forming process configuration means 2 is built into the upper unit 1a, and an upper cassette 6, a lower cassette 7, and a paper delivery unit 11 are attached thereto. The lower unit 1b is equipped with the paper discharge tray 9 and the large-capacity paper feeder 8, and is also provided with a paper guide 13 that guides the paper P fed from the large-capacity paper feeder 8 toward the upper unit 1a. It is being Upper cassette 6
There is a manual feed tray 14 on the top side.

The image forming process configuration means 2 has the following configuration.

That is, a drum-shaped photoreceptor 15 as an image carrier is arranged approximately in the center of the upper unit 1a, and this photoreceptor 1
around the periphery of the charging device 16.5 along its direction of rotation. Eraser 17. Exposure section 18a of exposure means 18, developing device 19
．． Transfer device 20, peeling device 21. Cleaning device 22. Static eliminators 23 and the like are sequentially arranged.

Furthermore, the cassette 6 is provided at the inner bottom of the upper unit 1a.
．． 7 or large capacity paper feeder 8 or manual paper feed tray 14
A paper transport path 27 is formed that guides the paper P sent from the image transfer section 25 to a pair of paper discharge rollers 26 . The image transfer section 25 is provided between the drum-shaped photoreceptor 15 and the transfer device 20. An aligning roller pair 28 is arranged on the upstream side of the image transfer section 25, and a fixing device u2 is arranged on the downstream side.
9 is placed.

A sheet take-out roller 31 attached to a swingable arm 30, a separation conveyance means 32, and a manual feed roller 33 are disposed near the mounting portion of the upper cassette 6. The separation conveyance means 32 consists of a conveyance roller 32a and a separation roller 32b.

The paper P taken out by the paper take-out roller 31 is transferred to the paper transport path 2 by the rotation of the transport roller 32a.
One sheet at a time is fed into the first branch conveyance path 27a that forms the upstream side of the sheet. As the manual feeding roller 33 rotates, the manually fed sheet P is fed into the first branched feeding path 27a through between the feeding roller 32a and separation roller 32b which are spaced apart from each other.

A paper take-out roller 35 attached to a swingable arm 34 and a separation conveyance means 36 are disposed near the mounting portion of the lower cassette 7. The separation conveyance means 36 includes a conveyance roller 36a and a separation roller 36b, and the paper P taken out by the paper take-out roller 35 is sent into the second branch conveyance path 27b one by one by the conveyance roller 36a.

A paper take-out roller 38 attached to a swingable arm 37 and a separation conveyance means 39 are disposed near the attachment portion of the large-capacity paper feeder 8 .

The separation conveyance means 39 includes a conveyance roller 39a and a separation roller 39.
The paper P taken out by the paper take-out roller 38 is fed into the third branch transport path 27c one by one by the transport roller 39a.

The mounting parts of the upper cassette 6 and the lower cassette 7 include
A paper-out detection switch 40 and a paper size detection switch 41 that also serves as a cassette detection switch are respectively disposed, and a detection switch for detecting the presence or absence of the large-capacity paper feeder 8 is provided on the attached portion of the large-capacity paper feeder 8. Switch (not shown)
is provided. Note that the large-capacity paper feeder 8 can send and receive various signals to and from the main body 1 of the apparatus via a signal cable (not shown), so that a paper out detection signal, etc. in the large-capacity paper feeder 8 is transmitted to the main body 1 of the apparatus. transmitted to the side.

At the confluence of the branch conveyance paths 27 a, 27 b + 27 c, that is, near the upstream side of the aligning roller pair 28, there is a paper sensor 42 that detects the paper P conveyed via the branch conveyance paths 27 a, 27 b, and 27 c. is located.

The large-capacity paper feeder 8 has an elevator-type paper feed tray 43 that can accumulate sheets P all at once. The uppermost sheet of paper P placed on the paper feed table 43 is sequentially taken out by a take-out roller 43a to a position opposite to a take-out roller 38 provided in the main body 1 of the apparatus. When the amount of paper P taken out from the paper feed table 43 reaches a predetermined value, a signal is sent from a detector (not shown) to the elevating mechanism 44, the paper feed table 43 is raised, and the uppermost paper P is always moved to the roller 43a. It is controlled so that it is in a position where it can be taken out.

The exposure means 18 has an exposure lamp 46 surrounded by a flaper 45. This exposure lamp 46 illuminates the original set on the original glass 3 from below. The reflected light from the document surface is reflected by the first mirror 47. Second mirror 48. The light is guided to the lens 50 via the third mirror 49. The light transmitted through the lens 50 passes through the fourth mirror 51. The light is guided to the photoreceptor 15 via the fifth mirror 52 and the sixth mirror 53.

reflector 45, exposure lamp 46 and first mirror 4
7 is mounted on a first carriage 54 that is movable back and forth along the lower surface of the document placement glass 3. second mirror 4
8 and the third mirror 49 are mounted on a second carriage 55 that moves in the same direction at half the speed of the first carriage 54.

By moving these carriages 54 and 55 from the left to the right in the figure in the state shown in FIG. It is designed for slit exposure. Each of the optical system members described above constitutes the exposure means 18. The first carriage 54 is equipped with a spotting unit 56 for specifying a specific area of the document when copying is desired with that area erased.

The developing device 19 includes an upper developing unit 58 for color development.
and a lower developing unit 59 for developing black color. These developing units 58 and 59 are of a magnetic brush type equipped with developing rollers 60 and 61, and by selectively bringing the developing rollers 60 and 61 close to the photoreceptor 15 and driving them to rotate,
Black or other colors such as red development can be selectively performed.

The cleaning device 22 moves the cleaning blade 63 onto the photoreceptor 1.
5, the developer (toner) remaining on the photoconductor 15 is scraped off, and the scraped developer (toner) is carried out of the casing 65 via the auger 64 and placed in a collection box (not shown). It is configured to be collected.

The fixing device 29 includes a heating roller 67 having a built-in heater lamp 66, a pressure roller 68 which is always urged to be in pressure contact with the heating roller 67, and the like, which are attached to both upper and lower casings 69.
It is surrounded by 70.

Inside the casings 69 and 70, the paper ejection roller pair 26 and the paper ejection switch 71 are integrated.

The charging device 16, the transfer device 20, and the peeling device 21 each utilize corona discharge. Static eliminator 23
The structure is such that light from a static elimination lamp 73 is irradiated onto the photoreceptor 15 via a green filter 74. Further, the erasing device 17 has a large number of LEDs arranged in the length direction of the photoreceptor 15, and is capable of erasing charges in a portion corresponding to an area designated by the spot unit 56.

A cooling fan 75 and a sub-main motor 76 are arranged above the fixing device 29, and a conveyor belt 77 forming a part of the paper conveyance path 27 is disposed between the peeling device 21 and the fixing device 29. is located. A high voltage transformer 78 is arranged below the conveyor belt 77, that is, at the bottom of the upper unit 1a.

Next, the automatic document supply/discharge unit 4 will be explained. The automatic document supply/discharge unit 4 includes an openable/closable cover 81 whose rear end side is rotatably attached to the apparatus main body 1 by a hinge mechanism.

On the right end side of the cover 81 in the drawing, there is provided an original inlet/outlet 82 which is large enough to allow an original to be fed from a paper feed tray 100 (described later).

A platen sheet 83 serving as a plate-shaped document holding member is provided on the back side of the cover 81, that is, on the side facing the document placement glass 3 when the cover 81 is closed. This platen sheet 83 is moved in the vertical direction, that is, by the cover 81, by a sheet driving mechanism 84 as illustrated in FIG.
It is movable in the direction toward and away from the document placement glass 3 in the closed state. Platen sheet 83 of this embodiment
As shown in FIG. 10, the plate portion 86 is made of a relatively soft and lightweight material such as synthetic resin foam, and the white sheet portion 87 is attached to the lower surface of the plate portion 86.
and a reinforcing frame 88 provided on the upper surface side of the plate portion 86.

The seat drive mechanism 84 includes, for example, an actuator 89 such as a solenoid, a shaft 90 rotationally driven by the actuator 89, a cam 91 connected to the shaft 90, and the like. shaft 9
0 is supported on the cover 81 side, and the cam 91
is engaged with frame 88. When the actuator 89 is energized, the shaft 90 and the cam 91 are driven in the direction in which the platen sheet 83 is raised, that is, in the direction in which the sheet portion 87 is moved away from the document placement glass 3. When the platen sheet 83 is lowered onto the document placement glass 3 with the cover 81 closed, the sheet portion 87 comes into contact with the document placement glass 3.

Further, inside the cover 81, a plurality of feed rollers 93 are arranged in the document transport direction. Each feed roller 93 is held in a recess 94 provided in the platen sheet 83, and can be rotated in both forward and reverse directions by a roller drive mechanism 95. Each roller 93 is
When the cover 81 is closed over the document placement glass 3, it is always in sliding contact with the document placement glass 3.

The illustrated roller drive mechanism 95 includes an actuator 96 such as a motor, a power transmission belt 97, a shaft 98, and the like. The roller 93, roller drive mechanism 95, and the like constitute document feeding means 99. Note that a plurality of rollers 93 may be provided in a direction perpendicular to the feeding direction of the document tray (width direction of the document).

A paper feed tray 100 serving as a paper feed section is provided on the right side of the cover 81 in the figure, that is, on the side facing the document inlet/outlet 82 . A document take-out roller 101 is provided on the upper surface side of the paper feed tray 100. Above the paper feed tray 100, a pair of discharge rollers 102 and a paper discharge tray 103 are provided as a paper discharge section. A movable stopper 104 and a pair of registration rollers 105 are provided between the document insertion/removal eye 82 and the paper feed table 100.
A direction switching gate toe, a supply roller 107, a separation roller 108, and the like are provided. The rollers 101, 107, 108 and roller pairs 102, 10
5 and the like are each rotated in a predetermined direction by a drive means (not shown). In addition, paper feed tray 1
00 is provided with a guide (not shown) for regulating the widthwise position of the document tray on the paper feed table 100 according to the document size.

The stopper 104 is rotatable around a shaft 111, and is rotated by an actuator such as a solenoid (not shown).
It is capable of displacement between a lowering mode and a higher mode. As shown in FIGS. 1 to 3, the lowering mode here refers to a position where the movement of the document tray is not obstructed when the document tray is fed onto the document placement glass 3;
In other words, the stopper 1 is placed below the top surface of the document placement glass 3.
This means that the end face of 04 is on standby. In the rising mode, as shown in FIGS. 4 and 5, the stopper 104
This refers to a state in which the end surface of the original plate 3 protrudes above the upper surface of the document placement glass 3.

The gate 106 is rotatably provided around a shaft 112, and can be switched between a first position and a second position by an actuator 113 (see FIG. 9) such as a solenoid. As shown in FIGS. 1 to 5, the first position here refers to a state in which the document tray is retracted so as not to obstruct the movement of the document tray when it is fed onto the document placement glass 3. say. The second position refers to a position in which the document is rotated upward so that the document discharged from the document placement glass 3 can be guided to the discharge roller pair 102, as shown in FIGS. 6 and 7. .

Next, the operation of the electronic copying machine equipped with the automatic document supply/discharge unit 4 configured as described above will be explained.

As shown in FIG. 1, after setting a plurality of originals on the paper feed tray 100 at once, when the automatic original supply and ejection unit 4 is operated by operating the operation panel 5, the original take-out roller 101 rotates, the document on the paper feed table 100 is taken out, and this document is transferred to the supply roller 107 and the registration roller pair 10.
By the rotation of 5, the originals are sent one by one into the document loading/unloading port 82. At this time, the platen sheet 83 is moved by the drive mechanism 84
The actuator 89 is operated to maintain the raised state. The roller 93 is in sliding contact with the upper surface of the document placement glass 3. Moreover, gate 10B and stopper 1
04 are waiting in the lowering mode position so as not to interfere with the movement of the document tray.

The document introduced into the document loading/unloading port 82 is further advanced by the rotation of the roller 93, as shown in FIGS. 2 and 3. Then, as shown in FIG. 14, when the rear end D1 of the original document is positioned in front of the end surface of the stopper 104, the stopper 104 is switched to the raising mode, and the rotation direction of the actuator 96 is switched, so that the roller 93 is rotated in the opposite direction.

As a result, when the document tray returns by the distance, the rear end D1 hits the stopper 104, and the document tray is positioned (FIGS. 4 and 15). In addition,
In order to detect that @D1 is located in front of the stopper 104 after the document is loaded, a document detection means such as a sensor is provided.

Next, by operating the sheet drive mechanism 84, the platen sheet 83 is lowered as shown in FIG. 5, and the document is sandwiched between the platen sheet 83 and the document placement glass 3. In this way, the document tray is correctly set at a predetermined position on the document placement glass 3.

While the document tray is set as described above, the drum-shaped photoreceptor 15 rotates, and the photoreceptor 15 is uniformly charged by the charging device 16.

Next, with the exposure lamp 46 turned on, the first carriage 54 and the second carriage 55 move from left to right in the figure along the lower surface of the document placement glass 3.
The document on the document placement glass 3 is scanned and exposed to slit light, and an electrostatic latent image corresponding to the document is formed on the photoreceptor 15. The electrostatic latent image on the photoreceptor 15 is developed and visualized by either the upper developing unit 58 or the lower developing unit 59 of the developing device 19.

In synchronization with the above-mentioned developer image forming operation, the paper P1 is automatically taken out from the upper cassette 6, the lower cassette 7, or the large-capacity paper feeder 8 according to the document size, or the paper is manually fed from the manual paper feed tray 14. The sheet P is sent to the image transfer section 25 via the aligning roller pair 28, and the developer image formed on the photoreceptor 15 is transferred to the sheet P by the action of the transfer device 20. Next, the paper P is peeled from the photoreceptor 15 by the peeling device 21 and sent to the fixing device 29 via the conveyor belt 77.
Here, after the developer image is fused and fixed onto the paper P, it is sent to the U-turn transport path 10 of the paper transport unit 11 via a pair of paper discharge rollers 26 . Then, the sheets are sequentially stacked in the paper discharge tray 9 with the front and back sides reversed and the leading edges aligned. Note that the photoreceptor 1 after the developer image has been transferred onto the paper P
5 removes residual developer (
The residual toner) is scraped off by the cleaning blade 63, and then, by facing the static eliminator 23, the photoreceptor 15 is irradiated with light to remove the electrostatic memory.
The next copy operation is now possible.

After the original is scanned on the original placing glass 3, the sheet drive mechanism 84 is operated again to raise the platen sheet 83 as shown in FIG.
The roller 93 rotates in the counterclockwise direction shown in the figure while remaining in rolling contact with the document tray.

Furthermore, the stopper 104 is switched again to the "downward mode" position, and the gate 10B is raised to the second position. As a result, the document sheet is transported in the opposite direction to the above-described feeding direction, and is discharged onto the document sheet on the sheet discharge table 103 via the discharge roller pair 102 (FIG. 7).

By repeating the above-described series of cycles from paper feeding to scanning to paper ejection, all the originals on the paper feed table 100 are sequentially fed onto the original A glass 3 and scanned, and the originals after scanning are are sequentially stacked on the paper discharge table 103.

As can be seen from the above description, in the copying machine of this embodiment, the paper feed tray 100, the paper discharge tray 10B, and the stopper 104 are arranged together at one end side of the apparatus main body 1. With such an arrangement structure, the document placement glass 3 is
The rear end D1 of the document sent upward is stopped by the stopper 104.
By quickly bringing the document tray into contact with the document tray, the document tray can be positioned quickly. Moreover, by reversing the moving direction (backing up) of the document tray after scanning, the document tray can be positioned on the paper feed tray 100 side. The paper can be discharged onto the paper discharge table 103 where the paper is stored. For this reason, the length of the transport path from paper feeding to scanning to paper ejection is shorter than the conventional method in which the original passes through the entire length from one end of the document placement glass to the other. I'll try it.

Further, since the platen sheet 83 is in a raised state when the document tray is transferred, the document tray can be easily moved by simply rotating the feed roller 93. Therefore, compared to the conventional device in which a large belt runs endlessly, the drive mechanism is not only simpler but also lighter in weight, so the opening/closing part of the unit 4, which is operated integrally with the cover 81, can be It is lightweight and can be opened and closed easily. In addition, it is easier to stabilize the running condition than when using a belt.

In addition, in the apparatus of the above embodiment, it is possible to perform copying without using the automatic original supply/discharge unit 4. In this case, the document tray may be set at a predetermined position on the document glass 3 by manually opening and closing the cover 81.

Alternatively, the originals may be sequentially taken out from the bottom of the paper feed tray 100. Furthermore, instead of separately providing the paper feed tray (paper feed section) 100 and the paper discharge tray (paper discharge section) 103, a document table that can serve as both the paper feed section and the paper discharge section may be used.

In this case, the documents may be sequentially taken out from the bottom of the document table and supplied to the document placement surface, and the scanned documents may be sequentially discharged onto the documents stacked on the document table.

[Effects of the Invention] As described above, according to the present invention, the paper feed section, the paper ejection section, the stopper, etc. are arranged together at one end of the device, and the document is fed from the paper feed section onto the document placement surface. The document is positioned by aligning the trailing edge of the scanned document with a stopper, and by moving the document after scanning in the opposite direction to the direction in which it was fed, it is delivered to the paper ejection section provided on the same side as the paper feed section. I'm trying to drain it. Therefore, not only can the distance traveled by the document from being fed until positioning can be shortened, but the length of the entire transport path from feeding, scanning, and ejecting the document can be shortened, so the movement of the document can be shortened. The time required for this is also reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a cross-sectional view schematically showing the internal structure of an image forming apparatus, and FIGS. 2 to 7 are cross-sectional views showing the automatic document supply/ejection unit in the order of operation. FIG. 8 is a perspective view showing the appearance of the image forming apparatus;
The figure is a perspective view showing a part of the automatic document supply/discharge unit, FIG. 10 is a sectional view showing a part of the platen sheet and sheet drive mechanism, and FIGS. 11 to 13 are each a part of the automatic document supply/discharge unit. FIG. 14 and FIG. 15 are side views showing a part of the automatic document supply/discharge unit in the order of operation. DESCRIPTION OF SYMBOLS 1... Apparatus main body, 3... Document placement glass (document placement surface), 4... Document automatic supply/discharge unit, 18...
Exposure means, 81... Cover, 82... Original inlet/outlet, 83... Platen sheet (original holder), 84...
...Sheet drive mechanism, 93...Feed roller, 95...
・Roller drive mechanism, 99...Document feeding means, 100・
...Paper feed tray (paper feed section), 103... Paper discharge tray (paper discharge section), 104... Movable stopper, 10B... Direction switching gate, D... Document, Dl...・Rear end of manuscript, P...Paper. Applicant's agent Patent attorney Takehiko Suzue Figure 8 Figure 13 Figure 14 Figure 15

Claims (1)

[Claims] An image forming apparatus that has a built-in exposure means for scanning a document placed on a document placement surface, and includes a paper feed section on which multiple sheets of document can be placed at once, and the same side as the paper feed section. a document ejection section provided on the document loading section; a document presser that is movable up and down relative to the document placement surface and lowered when scanning the document on the document placement surface; and a document presser provided on the document feeding section. a document feeding means for feeding originals one by one onto the document placement surface and ejecting the scanned documents to the paper ejection section; and near an end of the document placement surface on the side of the paper feed section and the paper ejection section. What is claimed is: 1. An image forming apparatus comprising: a stopper which is disposed on a document loading surface and can align the trailing edge of a document fed onto a document placement surface.