JPS5878163A - Copying device of plural sheets - Google Patents

Abstract

PURPOSE:To execute high speed copying of a satisfactory picture quality extending over a lot of sheets, by transferring a toner image formed temporarily on a photosensitive drum, to a dielectric belt, and transferring and fixing by a prescribed number of sheets, when copying a lot of sheets. CONSTITUTION:By a well-known system, a toner image is formed on a photosensitive drum 10. Subsequently, the toner image is transferred onto a dielectric belt 30 which is positioned in the proximity of the photosensitive drum 10 and is driven at the same surface speed as the drum 10. In case of copying of a lot of sheets, the toner image transferred on this belt 30 is projected onto the photosensitive drum 10 again, and formation of an electrostatic latent image, its development, and transfer and fixing to a copying form are repeated by a prescribed number of times, by which a lot of copies are obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a WW single-sheet copying apparatus that obtains a plurality of set-through images by one exposure scan of a document.

Various types of copying devices have been known in the past, including those that copy a large number of sheets by repeating the process of transferring an electrostatic latent image once formed on a photoreceptor onto specially treated paper and then developing it, and those that copy a large number of sheets once formed on a photoreceptor. The toner development and transfer process is repeated on the electrostatic latent image formed on the same IWk sheet of ordinary image receiving paper.
The toner image transfer method that obtains a large number of copies, the process of modulating the corona ion flow based on the electrostatic latent image formed on the screen photosensitive drum to form the electrostatic latent image on the image receiving paper, and the process of forming the electrostatic latent image on the image receiving paper. There is a latent image transfer method in which the process of developing an electrostatic latent image with toner is repeated to obtain the same duplicated image on several sheets of image-receiving paper. In such a multi-sheet copying device,
In order to obtain high-quality copies of multiple copies,
The electrostatic latent image once formed on the photoreceptor is processed into multiple sheets.
It is necessary to breed the hens stably over a period of time. However, many sheets of 1m have been proposed so far! In transfer devices, the electrostatic latent image deteriorates due to dark decay of the photoreceptor, and the latent image charge that forms the electrostatic latent image is generally present on the surface of the top layer of the photoreceptor, so toner image transfer is difficult. In this method, the potential of the latent image is attenuated through the developer during development, and in the latent image transfer method using a screen photoreceptor, the latent image is disturbed by the corona ion flow, resulting in a large number of I! It was not possible to maintain the latent image stably throughout the copying process, and therefore it was not possible to obtain copies of good quality over a large number of copies.

In addition, there are offset printing machines that create an original plate called a master and use this original plate to print a large number of sheets, but it takes at least several minutes to several tens of minutes to create a master, so it lacks immediacy. There are other problems.

In general, there is a device disclosed in Japanese Patent Application Laid-Open No. 1999-111001 SZ-T3S6ZX as an 18-number photocopying device that has been proposed in the past. According to this publication, an original image is projected onto a photoreceptor to form an electrostatic latent image and developed, and the developed toner image is transferred to an intermediate image forming web (hereinafter referred to as web) of an intermediate image forming device. This web is wound around two scrolls via an oscillating four-wheeler, which is moved to bring the web into contact with the photoreceptor and transfer the image on the photoreceptor. .

In addition, these 9 nibs are provided with continuous protrusions at both ends so as not to disturb the transferred image when they are wound around a scroll and overlapped, so that even when wound, the web rolls 2j! done l
The original images do not come into contact with each other. After the original image has been transferred while the web is conveyed in one direction, the four rollers are moved to separate the web from the photoreceptor and convey it in the opposite direction to transfer the image on the web. Then, the photoreceptor is again exposed to light by a light source provided at the exposed portion of the web to form an electrostatic latent image. Thereafter, the web is forwarded according to the desired number of copies to be made.
Copying is performed by forming an electrostatic latent image on a photoreceptor. When the final backward movement of the reciprocating movement starts, the cleaning device is activated to remove and clean the toner transferred onto the web.

However, in such a multi-sheet II device with 111 configurations.

The web that forms the intermediate image must be moved back and forth as the photoreceptor rotates, and the timing control is
-, and the structure of the device itself becomes complicated. Therefore, it is not possible to carry out high-speed WI transfer.

In addition, the web itself must be shaped with protrusions at both ends, which also has the drawback of increasing the size of the device.An object of the present invention is to eliminate the above-mentioned drawbacks and to process original documents with a simple structure. It is an object of the present invention to provide a multi-copy copying apparatus capable of stably obtaining copies of a large number of high-quality copies from an electrostatic latent image obtained by a single exposure scan.

The present invention includes a charging device that uniformly charges a photoreceptor along the travel path of the photoreceptor that rotates and travels in a predetermined direction at a predetermined circumferential speed, and a charging device that irradiates an image of a document to be copied onto the photoreceptor. a first optical device that forms a primary electrostatic latent image; a developing device that develops the electrostatic latent image on the photoreceptor into a toner image; and a first transfer device that transfers the toner image on the photoreceptor onto image receiving paper. A cleaning device and a first cleaning device for removing toner remaining on the photoreceptor are placed in a cargo space, and a second optical device is placed roughly between the first optical device and the developing device, and a second optical device is placed roughly between the first optical device and the developing device. A first transfer device is disposed between the developing device and the first transfer device, and a second transfer position lid and the second transfer device are provided with the second transfer device in a pond.
a dielectric belt that runs at a predetermined circumferential speed by applying a potential on the object surface of the optical device; a means for bringing the dielectric belt into contact with the photoreceptor at the second transfer position; A cleaning device for removing toner and a primary toner image developed from the primary electrostatic image of the original to be copied are transferred onto a dielectric belt by a @2 transfer device, and then the dielectric belt is transferred from the photoreceptor. After spraying, a secondary electrostatic latent image is formed by a second optical pupil based on this toner image.
After repeating the process of developing this to a primary toner image and transferring this secondary toner image to image receiving paper using a first transfer device to form several copies, a dielectric belt is The apparatus is provided with means for controlling each part to remove the primary toner image from the Jth Releaning WI.

The present invention will be explained below with reference to the drawings.

Figure 1M1 is an outside perspective view showing one row of the multi-sheet I\ apparatus according to Masumei Honmei. A document table 2 and a document discharge tray 3 extending upward from the document table 2 are provided above the main body 1. Sheet documents (not shown) are placed on the document table 2 on the document table 2.
In Fig. IIL, the sheet is slid in the direction of arrow B, is scanned and exposed in an exposure section (not shown) to be described later, and the conveyance direction is changed, and the sheet is discharged onto document discharge tray J in the direction of arrow B, forming a sheet document conveyance path. This sheet document conveyance path is such that the document table 2 is tilted forward and downward when viewed from the direction of travel of the document so that the sheet document can be inserted and conveyed very naturally. Further, a guide may be provided in parallel to the traveling direction of the original on the original table λ to position and guide the original. An operating section is provided at the top of the front (front) of the main body, including a power switch, ll! A copy number dial and various display lamps, etc. are provided. ◎A monitor window made of a transparent member (described later) is provided on the front of the main body, and this monitor window can be removed to display the second original, which will be described later. The transferred image can be corrected. tti after body l
A paper discharge stand 7 for storing copy paper on which yI has been copied and a removable paper feed cassette r are attached to m.

FIG. 2 is a sectional view diagrammatically showing an example of the internal structure of the multi-sheet copying case shown in FIG. 1. FIG. A photosensitive drum 1O is rotatably supported by a main body 1 in the direction of the arrow.

An exposure light 81S// is provided below the original discharge tray 3 in front along the original transport path on the original column table. This exposure IfI
The S// is provided with a document entrance section /2, a first detector /3, a first pair of feed rollers, a second detector /3, and a second feed roller pair 14 in this order along the document conveyance path. .

The first and second feeds ν-radar and /4 each consist of one upper and lower roller, sandwiching the document conveyance path.

Second thrift device! A first exposure lamp 17 is installed in the main body immediately below the document transport path between the
is provided so that an image of a document (not shown) can be projected onto the photosensitive drum lo through the stage glass/l SELFOC lens array 19 by irradiation.

A reversing path for changing the orientation of the exposed original is provided behind the second feed roller pair 16, and a pair of original ejection rollers J/f is provided at the exit of the reversing path to guide the original to the original ejection tray. From the point where the original image is formed on the photosensitive drum lo through the SELFOC lens array 19, a charger n is arranged at the rear in the rotational direction of the photosensitive drum, and a trimming lamp 8% developer 2g is arranged at the front in the rotational direction. Charger n is a photosensitive drum.

Charge the surface uniformly. The trimming lamp n is operated by a signal from the second detector /j to release charges from a portion of the exposed electrostatic latent image that is unnecessary for development, thereby preventing it from being developed. Further, in this example, when copying a plurality of sheets m, trimming is performed at least once in the image area of the photosensitive drum, that is, the portion in front of the document latent image to form a mark latent image. A transfer roller is provided in front of the developing device 22 in the rotational direction of the photosensitive drum 10 so as to be swingable about the axis of the idle roller 1 so as to be able to come into contact with the photosensitive drum.

This transfer roller is electrically conductive, and is configured so that a transfer bias can be applied to the shaft Ma of the transfer roller, which is also electrically conductive, by a power source C via a resistor 2Ab. - On the other hand, a drive roller d is provided between the trimming lamp B on the photosensitive drum and the developing device 2, and a tension roller n is also provided on the opposite side of the developing device 24I from the photosensitive tram 10, and these transfer rollers π , idle p" y 27 s An endless belt 3θ made of dielectric (hereinafter referred to as dielectric endless belt) is placed between the drive roller 2f and the tension roller 2. The both sides of the dielectric endless belt 3θ are exposed to light. The parts that do not interfere with the drum are perforated, and the teeth provided at both ends of the drive roller ensure that the drive roller is driven in the rotational direction of the rotating drum and does not shift in the thrust direction. The speed of the endless dielectric belt conveyed by the rollers is controlled to be equal to the circumferential speed of the photosensitive drum.In this example, the endless dielectric belt is made of white poly varnish with a thickness of approximately 100 μm. Preliminary film was used.

General GC, t% resistance, 21'C5ORHr! x10
1') to 1014 Ω (preferably a resistance level of about 100 Ω), with little expansion and contraction due to moisture absorption, light resistance, abrasion resistance, and flexibility.
It is desirable that a color to which a white photoreceptor is sensitive is applied. Specifically, materials that satisfy the above conditions include ethylcellulose, acetylcellulose, pionyl cellulose, acetate-butyric acid cellcese, vinyl acetate, vinyl butyral, vinyl chloride, vinyl acetate chloride, polyester,
Possible examples include carbolic acid, polyester, acrylic resin, and polyethylene terephthalate. For use,
Although such a substance may be directly processed into a belt-like film with a thickness of approximately 10 to 100 μm, it is preferable to use a composite layered belt to prevent expansion and contraction caused by moist heating, etc., and to improve strength and abrasion resistance. It is preferable that The transfer roller swings around the axis of the idler roller I, so it can be in contact with the photosensitive drum or out of contact. Therefore, if the roller is brought into contact with the photosensitive drum and a voltage is applied, the developing device The images formed and developed on the photosensitive drum at step 24I, that is, the IF rod image and the mark latent image, are transferred onto the dielectric endless belt Jo. An opening is provided in the upper part of the developer II 2 # in the vicinity of the dielectric endless bell 30, and the blade 31 is rotatably supported on the developer 2.
The tip of the blade 31 is made to protrude from the opening and come into contact with the dielectric endless belt over the entire width direction. This blade 31 is brought into contact with the dielectric belt when the multi-sheet mV process is completed, and the toner of the copied image on the dielectric belt is scraped off and collected into the developing device at the same time. A first charger n2 is disposed upstream of the developing device 21I with respect to the moving direction of the dielectric belt, and its operation weakens the electrostatic adhesion force of the toner adhering to the dielectric belt 30, thereby increasing the dielectric strength of the blade J/D. To improve the cleaning performance of a body belt. A reflective photosensor 33 is provided further upstream of the second charger 12 of the dielectric belt JO to detect the mark latent image on the dielectric belt and control the blade 37 and the like. A second exposure lamp and a second self-occurring lens array H are connected between the photosensor I3 and the first charger n2, and the Ilv image on the dielectric belt The lens array 35 is arranged so that an image is formed on the photosensitive drum lo.

Below a removable monitor window 6 provided in the front aS of the main body l, a dielectric belt is hung between the drive roller 1 and the idle roller l, and the * on the dielectric belt is passed through the monitor window.
You can see the Photo Toner Pavilion. In this example, the image can be modified by removing the monitoring window. In this case, a manual knob (not shown) is provided on the drive wheel l so that the part to be corrected can be freely moved by turning the knob. Corrections can be made by attaching a carrier to a magnetic bar, touching it to the part you want to delete, and moving it.

In front of the transfer roller U with respect to the rotational direction of the rotary drum 10, a next paper feed section η, a third charger it, a charger n, and a conveyance section are provided in this order. Copy paper is stored inside the cassette, and when a reference signal is generated by the latent mark image of the reflective photosensor 13, the two roller ladder L is rotated to guide the copy paper to the artificial part DA2 of the paper feed 1sJ7. It abuts against the register roller 4I3. At this time, the register roller 413 is stopped, and the copy paper is sent out to the photosensitive drum in such a manner that the leading edge of the toner image formed on the photosensitive drum matches the leading edge of the paper. The third charger 3j serves to transfer the image on the photosensitive drum to transfer copy paper, and the AO charger n serves to remove the charge and peel the copy paper from the photosensitive drum. The conveyance section carries the copied copy paper to the fixing device 3, and discharges it onto the document discharge tray 7 by a pair of paper discharge rollers.

A cleaning unit 4Ij of the photosensitive drum is further forward in the rotational direction of the rotating drum 10 and behind the first charger n.
The cleaner 4IS cleans the toner that has not been completely transferred to the copy paper, thereby completely removing the toner and latent image on the surface of the photoreceptor.

Regarding clam cultivation using a multi-sheet mV device with such a configuration.

I will explain. When a sheet original is placed on top of the original sheet and slid in the direction of the arrow, the first detector 13 is activated at the tip. In addition to this, a clutch mechanism (not shown) is driven, and the first feed roller pair/1 rotates, gripping the tip of the original sheet and starting to convey it.
When the tip of the feed roller 14 activates the second detector, the clutch mechanism described above is released, the first feed roller pair /l stops rotating, and the sheet original is held between these rollers. Conveyance is temporarily stopped. When the predetermined preparations for copying are completed, the clutch mechanism described above is driven again to restart conveyance of the sheet original. Note that the sheet original is conveyed by the first and second feed roller pairs /l and /4 by rotating at an angle synchronized with the circumferential speed of the photosensitive drum 10 to convey the sheet original (sheet) 11 (m). When the conveyance of the sheet is completed in both directions, the first dew head lamp 17 is turned on and the sheet original passing over the stage glass II is turned on.

The optical image of the abrasion that has been scanned by light is projected onto the photosensitive drum 10 via the SELFOC lens array 19 . C)1
N@ is discharged onto the raw material discharge tray J by the first feed roller pair /1 which is constantly rotating. At the position of the first detector/3, the conveyance had stopped and the sheet was waiting.
The photosensitive drum continues to be rotated until sufficient exposure is achieved after restarting its conveyance, and after the surface is uniformly charged by the first carrier n placed near its periphery, the selfoc lens array 19 A slit that is irradiated with a light image through a slit. While emitting light, an electrostatic image corresponding to the original image is formed on the surface of the slit. From this electrostatic i1F image, a trimming lamp n is used to remove unnecessary parts of the gl image. releases the electric charge. Also, when making multiple copies, a latent mark image is formed◇
The original image and the mark latent image move as the photosensitive drum rotates, and are developed by the N imager 2 with toner of opposite polarity to the awl. There are many original images that have been oxidized! During copying, the transfer roller is driven around the axis of the idle roller L to maintain contact between the transfer roller B and the surface of the photosensitive drum, and at the same time a transfer bias is applied to the transfer roller by the power supply ram 0, a dielectric endless bell is activated. ) 30 moves at a speed equal to the circumferential speed of the photosensitive drum, so that the abraded toner acid and Mark IIF family formed on the photosensitive drum are f
j1m endless belt 30-. When this transfer is completed, the transfer roller is fibrillated downward again and tsII
The body belt 3θ is placed in a non-contact state with the photosensitive drum. Thereafter, the dielectric belt continues to be rotated and moved by the drive roller l. The reflective fosi sensor 33 detects the mark latent image on the tIs 11 body belt and separates the blade 31 in the developer 2# from the dielectric belt. Therefore, the original lateral toner particles and mark particles transferred onto the dielectric belt will not deteriorate at all as long as they are moved on the dielectric belt in this state. These images on the bleached turtle belt can be seen through the monitor window 6.
t, so if necessary, the monitor window can be opened and the elephant can be corrected. With the preparations for multiplex several-sheet back-to-back copying prepared in this way, the photosensitive drum after the image has been transferred to the electric belt is charged with the electrostatic adhesion force of the toner remaining on the surface of the photosensitive drum using an AO charger. Remove the electrostatic film and remove it with cleaner 4IS. Next, the new photosensitive drum surface is irradiated with the first band's first exposure dump, and an image is formed on the photosensitive drum via the seventh photosensitive lens array 3S to form an electrostatic trench. The 11ilF image is developed with an EL imager 3. On the other hand, when the reflective photosensor 33 detects a mark latent image formed on the front side of the document toner image on the dielectric belt and is brought into contact with the register roller R. At this time, the register roller q is stopped, but according to the rotation timing of the photosensitive drum, the register roller 413 is rotated so that the developed image on the photosensitive drum and the leading edge of the copy paper match, and the copy is made. Paper is fed from paper feed section I onto the photosensitive drum.

The image on the photosensitive drum is transferred to the copy paper by the charger 3j, and the charge is removed by the charger 39 so that the copy paper on which the grooves have been transferred is easily peeled off from the photosensitive rim surface. The copy sheet is conveyed by the conveying section Q to the fixing unit Q, where it is heated and fixed, and then discharged onto the original output tray γ by the ejecting roller to complete the copy reduction. The toner that has not been completely transferred to the copy paper by the charger 3j is cleaned by the cleaner 4IS and then transferred again to the first ?
lfl [0 uniformly charged on the surface of the photosensitive drum by the device n
When performing multi-sheet film copying, each of the above operations, that is, forming the original image formed on the fat-electric endless belt 30 again on the surface of the photosensitive drum, can be performed by repeating the desired number of times.

In addition, if you want to reduce only 7 pages of the original to be reduced,
Since it is not necessary to form a horizontal image on the dielectric belt, the transfer roller is always kept in a non-contact state with the photosensitive drum 10, and the document image formed on the photosensitive drum is carbonated with the developing unit 2# and then is heated to a predetermined position. Copy paper is fed onto the photosensitive drum at the timing of , and copying is performed.

FIG. 3 is an external perspective view of the conveyance movement/mechanism of the dielectric endless belt shown in FIG. 2. The same parts as in FIG. 1 are given the same reference numerals, and similar explanations will be omitted. Parallel frames 30, 3
The idle roller l and the drive roller 1 are connected to the shafts 52 respectively.
, 33 to be rotatably supported.

Frame 30 of axis j2, arms j da on the outside of j/, respectively;
Sj is rotatably fitted. The arms ip and Is 4 rotatably support a transfer roller μ by a shaft Xa at the tip thereof, and are integrally connected by a plate member in the middle.

1lli! Protrusion 37 is installed in the middle of Sj.
Connect to plunger j9 of r. Frame jd, 3
/The number along the line passing through the center of the idle roller 1;
A straight line @40 is provided, and the axis of the tension roller is moved along the groove 10 of the tension roller in the direction of the axis s2.
3. The belt 30.1 passes between the tension roller J and the idle roller L, and is wound around the transfer roller I, the idle roller 1, and the outside of the drive roller. Effective for transferring the IN mapping of this 1111 body belt - 6 holes at regular intervals on the outside! hole 6 on the outside of the tension roller 1 and the outside of the drive roller j.
Teeth 66 and 67 are respectively provided so as to mesh with j. A gear 4t with a one-way clutch is provided on one side (handshake) of the shaft S3 of the drive roller 1 to rotate the drive reeler by a non-rotating power source, and a gear 4t with a one-way clutch is provided on the drive roller 1 to correct the image on the dielectric belt. At this time, a manual knob 49 is provided for manually moving the image on the dielectric belt. This kind of structure
.

According to the dielectric endless belt conveying and moving device, the arm Kg, 1K is swung around the axis S2 of the idle roller 1 by the operation of the solenoid jt. For example, you can use the transfer roller at the end of your arm to plow. This allows the transfer roller to be brought into contact with or out of contact with the photosensitive drum 10 described above. Since the tension roller 2 applies a predetermined tension to the dielectric belt by the spring t3, the dielectric belt does not slacken. Also, #l irises belt number hole t! Since the movement is caused by meshing with the teeth 4t and 47, the drive is reliable and the displacement force t is reduced.
6I/l. When making corrections after copying on the dielectric belt,
The one-way clutch of the gear at is disengaged, the drive is stopped, and the US body belt is moved using the manual knob 69. The second figure is an enlarged cross-sectional view showing the developing device of FIG. 2 in detail.

Components similar to those in FIG. 2 are denoted by the same reference numerals as G1, and similar explanations will be omitted. Upper cover 70a and lower blade t of developer unit
The magnet roller 7λ is provided so as to partially protrude from the open lower 1 formed by <-7Qb. Below the photosensitive drum 10, which rotatably supports the spiral shaft 7J below the slider 2, #i A doctor blade 7da is provided integrally with the household appliance 21 to regulate the length of the toner caused by carrier toner adhering to the photosensitive drum. Also, the photosensitive drum 10
A scraping plate 7j is provided on the side of the photosensitive drum to scrape off the carrier after toner development from the surface of the photosensitive drum.

On the other hand, a blade 31 for scraping off the toner image transferred onto the #sIE body endless belt 3o is attached to another open lower part t formed by the upper cover 70a and the lower cover 70b using the support member 77. To support and provide. This support member 77 is rotatably supported by a pin 77a serving as a fulcrum. A guide 7t is arranged on the opposite side of this blade 31 with respect to the dielectric belt A hole 7t is provided.

A solenoid 10 is disposed below this hole 7t, and its plunger I/ is connected to a hole 79 in the support member via a lock.

According to the developing device having such a configuration, the spiral shaft 73
By rotating the toner and carrier, the toner and carrier are mixed and maintained at a constant concentration. The magnet roller 7 brings a spear made of carrier and toner regulated by the doctor blade 7 into contact with the photosensitive drum 10 to develop the electrostatic film on the photosensitive drum.

On the other hand, when copying a large number of sheets, the toner image once formed on the photosensitive drum is transferred onto the dielectric belt (30), so before the next abrasion to be copied is formed on the dielectric belt, The toner image must be removed. After the desired number of copies of the original image transferred onto the dielectric belt have been made, the solenoid 10 is actuated to move the plunger 11 downward in the figure, so that the hole 79 side of the support member 77 is moved via the spring t2. Pull the end. Therefore, the support member 77 rotates counterclockwise around the bin 77eL, moves from the broken line position to the solid line position in the figure, and brings the tip of the blade 31 into contact with the dielectric belt. Belly copy ** When the number of copies is one, and during the process of copying multiple copies, use the plunger t.
11 support member 77 and blade 31 are in the dashed line position. The six-body belt moving in the direction of the arrow is connected to this blade 3.
Since it is conveyed while contacting the tip of 1, 1sII
The toner image on the surface of the E-body belt is scraped off by a blade 31 for cleaning. The scraped off toner is collected into the developing device through the open lower t. Therefore, even if a toner image is transferred onto a dielectric belt other than the photosensitive drum, toner is not consumed for this purpose.

As is clear from the above description, according to the multi-sheet copying apparatus according to the present invention, when performing back copying of a large number of sheets, the toner image once formed on the photosensitive drum is transferred to To make a large number of copies, the toner acid transferred onto the dielectric endless belt is again projected onto the photosensitive drum to form a static 11K latent image.
! Because the transfer and fixing to transparent and flexible paper is carried out by repeating the transfer a predetermined number of times, the configuration is relatively simple, and the toner image on the dielectric endless belt does not deteriorate, making it possible to print on a large number of sheets. Horse Ren I with very good image quality! It has the effect of allowing you to take pictures. In addition, it is possible to reduce the size of the entire device.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an example of a multi-sheet copying apparatus according to the present invention, FIG. 2 is a sectional view showing an example of the internal structure of the multi-sheet copying apparatus shown in FIG. 1, and FIG. Exterior view showing the conveyance and movement mechanism of the dielectric endless belt vI4 view Figure 1 Figure 4 is a detailed enlargement of the developing device in Figure 2! This is an IT diagram. l...Main body, λ...Original platen, 3...Model ejection tray, D...Operation unit, t...Monitor #I window, 7...
Ejection table, t...liner cassette, IO...photosensitive drum, //...exposure section, 13...first detector, lS...
・No. 1 detector, /7... 1st m light lamp, 19...
SELFOC lens array, n... Charger, n... Trimming lamp, 21... Current @ device, S... Rotating roller, 1... Idle roller, d... Drive P-RA, J
...Tension roller, 30...m electric endless belt, 31...Blade, 32 River second charger, 33...
Photo sensor, 3II... 1st m light lamp, 13...
・Second self-cleaning array, 31st river third charger,
胛...AC charger, rabbit...transport unit, gear...pickup roller, jij...cleaner, Sθ, S/-...
Frame, 5g, ss... arm, jj... solenoid, 3... spring, 7... magnet roller, 7
7...Supporting member, IrO...Solenoid. Patent applicant: Olympus Optical Industry Co., Ltd./LS
Figure 1 Figure 2 Figure 3 q Procedural amendment June 10, 1981 1. Indication of case 1988 Patent Application No. 1.7624.8 2. Title of invention Multiple sheet copying device 3. Amendment Patent applicant (037) Olympus Optical Industry Co., Ltd. (1) Specification, page 12, lines 1θ to 11, page 18, line 6, page 14, line 6
~ line 7, page 18, number 8, what. Correct "mark latent image" in lines 8 and 11 and line 6 of page 19 to "mark image." (2) "Multi-sheet copying device" on page 7, line 17, page 16, line 1, page 211, lines 8-9, page 26, lines 2, 8-4 Corrected to ``copying device.'' (3) From line 20 on page 14 to line 4 on page 16 of the Regulations, ``Remove each photosensitive drum one by one.'' Clean the missing toner with the cleaner 46.
Correct.

Claims (1)

[Scope of Claims] L A charging device that uniformly charges a photoreceptor along the travel path of the photoreceptor that rotates and travels in a predetermined direction at a predetermined circumferential speed, and an image of an original to be copied on the photoreceptor. a seventh optical device that irradiates the toner to form a primary electrostatic latent image, a developing device that develops the electrostatic latent image on the photoreceptor into a toner image, and a developing device that transfers the toner image on the photoreceptor onto an image receiving paper. Remove the toner remaining on the first transfer device and the photoreceptor #! A first optical device is arranged between the seventh optical device and the developing device, and a second transfer device is arranged between the developing device and the first transfer device. a dielectric belt that runs at a predetermined circumferential speed while holding the position of the object plane of the second optical device and a second transfer position where the second transfer device is disposed; means for bringing the toner into and out of contact with the photoreceptor at the second transfer position; a first cleaning position for removing toner on the dielectric belt; A primary toner image in which the primary electrostatic latent image of the original document to be acquired is developed is transferred onto the dielectric belt by a second transfer device, and after the dielectric belt is separated from the photoreceptor, this secondary toner image is transferred. forming a secondary electrostatic latent image by a second optical device based on the
This is developed to form a secondary toner image, and the process of transferring this secondary toner image to image receiving paper by a first @carrier is repeated to form a plurality of copies, and then the primary toner image on the dielectric belt is formed. 1. A multi-sheet copying apparatus, comprising means for controlling each part so that the second cleaning device removes the second cleaning device. 2. The multiple-sheet IF copying apparatus according to claim 1, wherein the dielectric belt is an endless belt.