JPS62126044A - Document copier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a document copying apparatus, and more particularly to a sheet feeding mechanism for sequentially advancing individual sheets from a stack of sheets to be copied.

The stack of sheets is placed on the support and the mechanism automatically feeds the bolted sheets on the reproduction device upon request when the reproduction device is operated.

BACKGROUND OF THE INVENTION Traditionally, sheet feeders have been equipped with complex drive mechanisms for interaction between the sheet feeder and the copier as the sheet to be copied is advanced to the copying position of the copier. They are generally large, bulky, and heavily supported up to one side of the copy surface on the reproduction device or adjacent to the frame of the reproduction device.

An illustrative type of document feeding apparatus known in the art is shown herein in FIG. 12, as well as in applicant's own US patent application Ser. No. 559.081, filed December 7, 1983. Also, British Patent No. 922.720 and U.S. Patent No. 4
, 568.881.

Problems to be Solved by the Invention In the present invention, the document feeding device is a simple, box-like device that is placed directly on the glass plate copying surface of the copying machine. Document feeders are used with reproduction devices that have either a fixed copying surface or a reciprocating copying surface. It is to be understood that copying machines, such as well-known office copying machines, facsimile or postal copying machines (as well as copies produced thereby), are not part of this invention.

22 Means for solving the problem The document feeding device has a cover which also acts as a shallow box support for the document 0 to be copied.

When the operator chooses to use the document feeder, the box is placed directly onto the glass plate of the copying machine and the cover is raised into an inclined support position for the documents.

When the documents are placed on the shallow box, the set of documents to be copied is placed in the feeder with the first tray on the top.

On command, the feed roller rotates to remove the bottom sheet of the document from the shallow box support and (in cooperation with the drive wheel) deposits the document face down onto the glass plate of the ear device. to be relocated.

1 After the document has been copied and while the copying device is recirculating
．． The drive wheels reverse direction to remove the dust from the glass pane and the document tray transfers the documents face up into the shallow box.

During the next cycle, the drive wheels reverse, bringing the next sheet from the stack of documents on the glass plate, and the sequence is repeated.

In short, the sheet is copied, the feeder is removed from the shallow box, the document support can be lowered into position as a cover for the feeder sump, and the feeder is removed from the copying machine.

The copying machine releases the newly created copies face up into its copy receptacle, so that the new set of copies is in order with the top page on top when finished.

Similar to a restack set of photocopied documents, the copies are analytically prepared so that they are ejected from the copying machine face up, and all copies and documents are in orderly succession with the first page at the top of the stack. , and no restacking is necessary.

The document feeding device of the present invention is lightweight, simple and uncomplicated, inexpensive to manufacture, and can be sold at a reasonable price. The document feeder can be used with a copying machine by an inexperienced operator and does not require a skilled person to set up or operate.

It is an object of the essence of the invention to provide a document feeding device that is small, simple, fast, easily transported, lightweight and inexpensive.

A further object of the invention is to provide a document feeder for use with any standard copying machine having either a fixed glass plate or a reciprocating glass plate, also known in the art.

Another object is to provide a low cost feeder that can be easily coupled to a reproduction machine so that operation of the feeder is automatically controlled from the reproduction machine's control panel.

With the above and other objects in mind, more information and a better understanding of the invention may be achieved with reference to the following detailed description.

For the purpose of illustrating the invention, the presently preferred form thereof is shown in the accompanying drawings, and it will be understood that the several means of which the invention is made may be arranged and illustrated in detail. Moreover, the invention is not limited to the precise arrangement and arrangement of means as shown and described herein.

E, Working example In the drawings, like reference numbers indicate like parts.

In the present invention, the generally box-shaped supply device 21 is
2 and an upper part 23 (opened at 23a and closed at 231).

The main body 22 has a side portion 25 and an opening 26a (FIGS. 4 and 1).
1) and has a bottom portion 24 which is a generally rectangular frame.

The bottom part 24 is designed to be placed on the glass of a copying machine, but with a thin gap 26 of suitable dimensions between the glass and the supply of document receptacles to be received therein. Supported by

The upper part 23 pivots at 23Q, so Figures 2 and 6
It can be tilted to the position shown in the figure, and has an inclined 4F type support part (shallow box) 23a for stacking the left items 28.

Twenty or more documents are supported face up on the shallow box 23a, and the bottom of the stack of documents 28 7-) 3
G comes into contact with a supply roller 31 placed approximately along the centerline of the stack of 4i types. This deployment includes drive wheels and
In many cases, easy separation and feeding of documents eliminates separators near the edges of documents that are otherwise damaged or wrinkled or improperly applied.

Because the preferred embodiment interconnects with the reproduction machine in this manner, less wattage and timing (theoretical) of the low voltage power requirements are drawn directly from the reproduction machine. Instead, the feeding device of the present invention has its own theory. Power is supplied from a transformer, copying device, or rephotovoltaic battery attached to the wall outlet. If desired, the device can be powered by a dry pond arrangement having the lowest cost of a non-shared boundary design.

Additionally, the dimensions of the shallow box, supports, and guides are for U.S. dimension paper or international dimensions commonly used elsewhere in the world (German Industrial Standard Litter N-A 4-man or legal dimension paper). 21.5.9 NiraX 550.2 mrx or 2
15.9 x 355.6ffim).

Because the feeding device can be easily removed from the reproduction device, the reproduction device can be used without the automatic document feeding device of the present invention.

After the class V supply device 21 of the present invention is placed on the copying machine 102 in alignment with the alignment green 118 and the shallow box 23
When the stack 28 of sheets to be copied is raised to the support position 23a, the stack 28 of sheets to be copied is placed face up on the shallow box 23.

The feeder 21 is placed on the copier glass 112 and positioned 7 by the flange 100.

When the copying device is started, the document feeder is also activated;
It operates either by its own power and theory (synchronized with the copying device) or by power and, if connected to a copying device, also known by the theory of the copying device. The feed shaft 31 is then caused to rotate in the direction of the arrow 32, and feeds the bottom sheet 30 from the circumferential stack 2B of the tube 51 over the top of the glass plate 112 in the thin gap 26a until it reaches the stop or pedestal 34. Moving.

Just then, the sheet is in position to be copied and the copying is performed.

A pair of driving hinoki (or more than cells) on the main axis γ0 44
and center 451. The ring 51 is rubber so that it has a strong tension on the paper when it is in the bite between the ring 51 and the cooperating ring 55. These rings are relatively solid;
The force between wheels 51 and 55 is large enough to pull document 30 from the stack and is sufficient to pull document 30 from the stack.
Overcome the resistance of 1 and 31. Ring 44 is larger in diameter than ring 51 and is very soft, like foam rubber used in furniture stuffing. The large diameter allows ring 44 to touch the glass so ring 51 does not. The transfer 44 moves the paper without distortion, on or off the glass, and the force can be low, just as a single sheet is moved. Ring 44 is approximately 1
52.4u+ away.

After copying is completed, drive wheels 44 and 51 are caused to rotate in opposite directions (as shown by arrow 35), and the sheet that was on the copying machine direction) and the receiver is placed in a shallow box 36.

For a central feed and separator, a central set of pull-out rollers 51 and 55 is required, and the feed from roller 31 is driven at a fast speed, and has a one-way clutch 43 on the feed shaft 74. is preferred and the rollers are free to rotate as the sheet is pulled through the drive. If there is a document in the bite of rollers 51 and 55, these rows 231 and 37 will pull the rear of class II through the bite of rollers 231 and 31, and if motor 12G (as allowed by one-way clutch 38) ), it causes rollers 31 and 37 to rotate at a faster speed.

The feeder agljJJ is reversed by reversing the power polarity of motor 120. All of the equipment now goes in the opposite direction, except over the one-way drive (clutch) 43. These parts (shafts 47 and 72) rollers 31 and 31,
Gear train 122 and slip clutch 38) are driven directly by motor 120 in the feed direction through a one-way drive clutch, but not in the reverse direction. A reverse roller device is a very good way to feed one and only one sheet even when the documents in the stack are of different vignettes and have different surface finishes. Many conventional feeders do not work satisfactorily as bottom feeders due to the weight and resistance on the sheets to be fed. This resistance also causes multiple feeds.

As shown in particular in FIGS. 6, 6, 7, and 9, one or more separation rollers 37 ensure that only the bolt sheets in the stack 28 are fed into the copying position.
Operate to f1.

In particular, as shown in Figures 6 and 7, the principle is simple;
Excellent and has wide tolerances. If we assume that the value of the force between the supply roller 31 and the separation roller 37 is likely to be 300.9, then the friction coefficient for rubber and paper or rubber and rubber is 1.2) The friction coefficient for paper and paper is 0.6
, the driving force of the feed roller 31 on the bottom of the bottom sheet 30 is 300 gXl, 2=5601. If the two sheets were in the bite of rollers 31 and 37, the force between them would still be 6009, but since the coefficient of friction is only 0.6, the frictional force would be only 300. 9 X O,
3=90, f. If the one-way clutch 38 is 9D
The device will work if installed in a device that provides a maximum force on paper of any value from I to 659 g. Clutch is 200f! Assuming that the roller 37 is installed in a sliding manner, the force in contact with the surface of the roller 37 and the frictional force between the paper and the roller are 660 J, but the force on the paper is 2001 J! will be limited to. Therefore, when one υ class is fed, the upper roller 31 will rotate over the paper and slide on the shaft 12.

For two or more seats, the seats on the sides of the drive wheels 31 are 56011-90 of the net small power,! i
1. The sheets not in contact with the drive roller 31 are acted upon by a force of 90.9-200F=-110g (the negative sign means the force is in the opposite direction 101, i.e. upward and to the right, facing the right), and the upper sheet is Move to the back from Hashikomi. For one sheet in the bite, the net 19Ad force is 660I-200,V=160.9 and the sheet is driven forward. If there is no paper being bitten, the supply roller 31 moves in the direction of arrow 61 to the delay roller 3.
Drive 1.

Other feed/separation devices that have been used include high j! 1 friction coefficient supply roller 39 is provided. Here, the excess sheet is not pushed backwards, but is restrained from being fed forward.

Another well-known supply/'yfa device is the adhesive tape device x')vc sold by the 6M Company.

Sheet 30 slides over glass 112 using two spaced guide rows 244 to prevent distortion. The drive should be easy enough to move the paper until it hits the end stop 34.

If the right angle force is low or a weak drive is used, such as a weak motor or other slipping clutch, the roller can slide over the paper.

r-) 45 is placed in the passage, so the sheet is
When returning by reversing 4 and 51, the paper is directed in the direction of arrow 46 into the stacking shallow box 36.

A photovoltaic cell and light 48 indicate when the sheet is in place at stop 34.

The photovoltaic cell 48 has a corrosive switch so that light from the copying device does not affect the photovoltaic cell. The motor 120 can be driven long enough to ensure that the paper is at the stop 34 and the switch is safe. However, it is understood in theory that it would be advantageous to have such a signal so that the paper is at a stop ready for copying. A switch is also used to indicate when the last sheet has been fed. It is theoretically arranged so that when there is no signal, there will be a "rd whistle" in 2 seconds after supply, and the equipment will be picked up and /
Alternatively, a light is illuminated to stop the copying machine and alert the operator.

For one drive motor powering all the document feeders on the jet feed, the next sheet is moved after the sheet reaches the alignment stop 34 in the Y4) area 45. There is a need to stop the supply before reaching this point. If the feed linkage is stopped too early, the first sheet will not be registered on the glass; if it is too late, the leading edge of the second sheet will fall onto the first sheet as it exits. Since the hit or r-t is depressed, the exit of the first seven-t is not converted within the stacking area 46. Either method would be acceptable.

Nine to solve these problems, forward drive A-255 and 44
The surface speed of the feed roller 31 must be faster than the narrow surface speed of the supply roller 31. Moreover, since the photocell 4B is near the end of its path, which is the registration end stop 34, it detects the leading four edges of the sheet.

The preferred design has a thin steel stripper 49 placed on the glass 112 so that the sheet is removed from the glass as rollers 44 and 51 rotate in the direction of arrow 35. The edge of the IJ collar 49 on the glass 112 must be sharp so that the edge of the paper does not sway relative to the stripper. Sharp edges are protected when the shallow box 23 is folded or when the entire feeder 21 is lifted off the glass of the copying device 102.

When the feeder and reproduction device are coupled, the theory of the feeder is either within the reproduction device or the feeder without electrically shared boundaries. If the feeding device is all theoretical, there is a photocell 13 near the bottom 24Q near the center or on the edge or corner to detect the interlocking of the output lamp of the copying device.
There are 6. The photocell 136 then focuses on the path of the party from the scanning lamp of the copying machine, and as soon as the light passes through the center of the feeder, the copy is completed and it removes one sheet from the glass and the next sheet. It's time to take advantage of this.

Some reproduction machines keep the lamp "on" for the return trip, some do not. Run on the return leg! "on]
For IC, the supply device is installed in a facility that responds to any other source code.

Since several copies will be made for a given use, it may be desirable to keep the sheet on glass. Therefore, 6
If 4 copies of a 4-page document are required, the 6-page document 28 is placed face up in the shallow box 23a, and the copying device is set up for ``4 copies'' with the shared area y# device. Serakatsu ``
"Print" button is pressed. This causes a shared border feeder to feed the last document from the stack on the glass.

In this case, the copying machine makes four copies and on the return trip between the fourth and fifth copies, a sheet is removed or the next sheet is placed on the glass. Thereafter, four copies are made, the document is changed, and more copies are made. Finally, the top sheet is removed from the glass and placed in the stacking area 3.
6 (Shallow box), placed face up and on top.

The external main drive rollers 44 are made of a very soft material so that the glass and these materials allow only slight gusts of paper to move but do not create excessive resistance. . The central roller 51 has a small diameter and does not touch the glass. The difference in diameter causes stress in the paper as it bends around the curved path defined by 121.

In the improved design shown in FIG. 15, a shaft 220 is incorporated into an internal spline 222 of a hub 223 secured to the shaft γ0 by a set screw 224, and a mating spline 221
It is driven by The left end of the shaft 220 is the side frame 53
If it is restricted by the fixed guide 225 of the support plate 226 mounted above, it can move freely toward the mold surface, but it cannot move horizontally. Additionally, the rib 22T extending from the support plate 226
limits the movement of shaft 220 in one direction.

Roller 44 and roller 51 can be of the same diameter, and roller 44 is placed on the paper or on the glass 112 if so desired. Swords have minor workmanship, determined by the childish work of the parts and the spring load. There is a gap between the bottom of the row 251 and the paper or glass. The low lime tire 44 is a solid, strong material so that it is not determined by the load on the paper or the deflection of the material.

The operation of the feeding device of the present invention will be better understood in the following description.

During the feeding operation, when the bottom seams 30 of ``class 1 28'' are separated and fed to the glass 112, the gear train 122
via motor 120 drives the device in the direction of arrows 32.61 and 50 on rollers 31.37 and 51, respectively. Roller 55 is driven by roller 51 and always rotates therewith. Sheet 30 moves to the lower left in FIG. 6 when the friction of roller 31 on sheet 30 is higher than the slip clutch provided by retard roller 37.

When the leading edge of the sheet 30 hits the upper side of the r-) 45,
The gate pushes the paper down and moves into the bite of roller 51155. These rollers rotate at a higher surface speed than the sheet when driven by the cypress 31 and have a greater tensile force. Thus, it pulls the sheet from roller 3'l/37, causing roller 31 to rotate faster than the sheet is driven.

The document is bent around by the curved path 121 and stripper 49 on the glass 112 of the copying machine.

The document is placed on roller 4, which makes light contact with the glass near the edge of the sheet.
Pass under 4. The roller moves the sheet through the thin space 26a between the glass 112 and the bottom plate 24 of the feeder 21 until the leading edge of the sheet abuts the end stop 34. As signaled by photovoltaic switch 48, roller 44 has a slight drive on the sheet so that it slides until the motor stops. The document is now positioned on the copier glass and can be copied. During the movement operation, motor 120 is reversed and shaft 10 drives rollers 44 and 51 in the direction of arrow 35 in FIG. As roller 44 contacts the sheet, the sheet is driven to the left in FIG. 6 and is rolled by the sharp edge of stripper 49 into a bite with roller 51155. Since the gate is normally in the position shown in FIG. 6, the sheets are guided into the stacking shallow boxes 36 in the direction of arrow 46.

The type of feeding device described is such that the edge of the sheet is
When leaving the separation roller 31/3γ, one sheet is fed,
The next sheet will start supplying.

Although the sheets are in contact from head to rear, in the present invention, when the first sheet reaches the main drive roller, it is pulled faster than it is fed. This early downstream feeding will create a gap between the rear of the first sheet and the leading edge of the next sheet.

This gap will become larger if the main drive pull overcomes the resistance of the feed roller. A one-way clutch 38 on the drive shaft γ2 causes the shaft to move in g, but since the first sheet is pulled faster than the drive, the drive roller 31 is free to rotate faster.

the gap between the rear of the first sheet and the leading edge of the next sheet, so that the first sheet has a sufficient speed difference to move to the registration stop 34 before the next sheet reaches the gate area. When the rear of the first sheet is pulled off the feed roller, it begins feeding the next sheet.

More than the theoretical clearance must be allowed so that the inertia of the motor moves the leading edge of the second sheet. Also, the second speed must be toleranced for possible incomplete separation drawn into the feed/separation jet 31/3T.

For some reproduction machines, it is preferable to have a long spring stripper 49 so that when on glass 112,
The stripper extends below the left edge of sheet 30. Therefore, the left edge was not placed on the glass, so there is no need to remove the sheet from the glass. This is -i! Best for copying devices that do not copy that edge of class F, and therefore:
The edge of the stripper 49 will not be visible on the imprint.

When there is already a sheet on the glass, the transfer operation occurs before the feeding operation.

As shown in FIG. 9, motor 120 drives belt 123. As shown in FIG. This belt drives the shaft TO and 14 in the feed direction. Depending on the pulley and roller dimensions, rollers 44 and 51
The surface speed of the roller 31 is much larger than the surface speed of the roller 31. When the motor is reversed, the shaft lO is driven directly by the motor by the one-way clutch 43 on the shaft r2.

Although a reflective light switch could be used for the paper switch 48, this would require quadruple technology and would be disrupted by the bright light of the reproduction machine.

Mechanical switches are preferred.

A novel design is for this four micro-force paper switch to bleed placed on the glass. This allows the paper to be thin, weak, and has precise tolerances such that it is very close to the glass. Despite the mechanical tolerances of the parts or their warpage, the freedom of movement of the shading plate placed on the glass under the effect of gravity and/or spring pressure is novel.

Two embodiments of the switch are shown in FIGS. 16 and 14. The standard snap switch 201 is operated by a pivoting metal dome 203 that pivots on a shaft 205 that is in contact with the dome and moves freely vertically within an elongated hole 207 in a fixed support 209. . The light shielding plate 2030 is shown in its original position, and 204 is shown in its opposite position. The diagram also shows the support 208 on the bottom of the gobo so that the sheet of paper is not held down by the gobo. This design ensures that the sharp edges of the gobo are firmly on the glass, but move freely in response to the edges of the paper.

The gobo is returned to its normal position by the switch spring.

When the paper hits the gobo at a significant speed, and when the gobo moves with the paper and needs to move on the board, there is sometimes a tendency to flip the gobo up and slide down. This manifestation of failure can be removed by a light spring force downward on the gobo, shown as spring 206.

FIG. 14 shows an alternative design in which an added top chamber may be utilized. Both springs of the switch return to the gobo and apply the required downward spring force to the gobo.

17 and 18 show other designs of the light shielding plate 212.
The legs 210 and 211 rotate on the axis 213, so
The bottom of the legs always slides on the glass plate and prevents the sheet from sliding under the shade plate.

Figure $10 shows the gear train connecting shafts 74 and 12. Axis T2 rotates more slowly than axis T4, as shown by table row 122. This saves power and allows the use of smaller motors. A belt can also be used. Axis T
2 and 14 are driven in the same direction as indicated by arrow 50.

Roller 37 is loaded against roller 31 with a known, constant force. To determine the force, this is caused by the roller's built-in interference, either by the softness of the roller or by the bending of the shaft. The end of shaft T2 is guided into an elongated hole 52 in frame 53 (as shown in FIGS. 5 and 9) and is loaded with a spring (not shown) in the direction of arrow 54.

FIGS. 4 and 11 show control panel 104. cover 11
0 and locating edges 10B and 118 around glass 112. When the machine is on the second slot 112 and on the stop 34, the feeding device 21 is positioned so that the copying device ensures that the animals requiring the V are placed for the correct copy to be made.

7 langes 1QQ fit between the lower edge of feeder 21 and edge 108 to hold the feeder in place, block light, and have a white surface on the copier glass.

EXAMPLE In the present invention, the leading edge of the first sheet travels approximately 50.8 ms from the feed/separator roller 31/37 and is then gripped by nipping between the spindle roller 51 and its idler roller 55. The main roller pulls the sheet from the feed/separator jet assisted by a one-way clutch 38. For a conventional 279.4 inch long paper, the position 4 alignment stop; i.e. 279.4 inch length and an added 5 (18 inch) around the main drive roller that captures the section of the sheet on the glass. Approximately 550.40 paper J] The leading green must be moved by the main roller. This interlock must be done as the next sheet is fed. This next sheet is being fed by the feed/separation roller and is located in the gate area. Move towards the next sheet before there is any interference.
It can be moved approximately 19.1m+a.

Therefore, using the numbers above, if we limit the minimum excess speed of the main drive over the feed drive, the main drive must be able to This means that the paper must be moved 550.4a. Assuming separation is complete, the feed rollers will not begin feeding the second sheet until the back of the first sheet is pulled free from the rollers. Therefore, before the second seat moves 19.1 am to the r-
．． 8v+i+8-must move. The main drive is 2 as fast as the supply (ratio = 210.75 = 2.666)
．． You have to buy seven times more [stocks]. In this example, with a feed roller of 19.1 forward diameter, a main drive roller of 31.4*normal diameter, and a belt 1 drive with a faster speed ratio of 6.66 of main drive to feed@drive: The main drive wheel ratio is 6.2: comfortably above the minimum and allowed for motor inertia and occasional incomplete separation where the next sheet is resisted by one on the first sheet.

The advance of the second sheet by the feed roller is about 15.2 IuL using the quick stop circuit of the motor. (As an inspection,
The calculated 4#J with a ratio of 6.2 is 50.8/
6.2 = 8.2 m. The paper feed rate before the main drive pulls the sheet is approximately 152.4 at a normal 66 speed.
It is deception/θ. This suggests a quick stop relay delay and a reasonable number of stops, 46 microseconds. ) It is to be understood that the invention may be embodied in other specific forms without departing from its spirit or particular attributes, and the examples are therefore to be considered in all respects as illustrative; Without limitation, reference is therefore made to the appended claims rather than to the foregoing description to indicate the scope of the invention.

[Brief explanation of drawings]

FIG. 1 is a top perspective view of the document feeder of the present invention; FIG. 2 is another top perspective view of the document feeder having an elevated document support shallow box of the present invention; FIG. FIG. 4 is a narrow cross-sectional side view of the document feeder showing the sheet path; FIG. Figure 6 is a schematic diagram of the sheet advance feed wheel, Figure 6 is a diagram of the forces acting on the sheet, Figure 7 is an enlarged view of the frictional forces acting on the sheet, and Figure 8 is an alternative feed/sheet separator mechanism. 9 is a schematic diagram of the power train or drive mechanism of the present invention, FIG. 10 is a side view of the part normally indicated by 10-10 in FIG. 9, and FIG. 11 is a diagram 11-11 in FIG. FIG. 12 is a schematic diagram of a prior art feeder, FIG. 16 is a vertical schematic cutaway showing one form of paper stop, and FIG. 14 is a vertical view of another form of paper stop. A schematic cutaway view, Figure 15 is a cross-sectional view of the vertical g points of one shape of the drive wheel taken in gland 15-15 in Figure 9, and Figure 16 is a cross-sectional view of 1j11 in Figure 15.
6-16, FIG. 17 is a cutaway front view of the lightweight pivot arm for stopping the paper, and FIG. FIG. 21: Supply device, 23 (23a, 23k)): Document support section (shallow box), 24: Bottom, 26a: Gap, stacking of 281F types, 30: Bottom sheet, 31° 39: Supply tank, 34
: End stop part, 36: Receiving shallow box, 37: Separation roller, 38
．． 43D one-turn clutch, 44:4*, 45:r
-t, 48.136: photovoltaic cell, 49 nisttripper, 48
．． 136: Photocell, 51: Central ring, 54: Cooperative ring,
62: delay member, 102: copying device, 112: copying device glass, 120: motor, 121: bending passage, 203° 212: light shielding plate,

Claims (14)

[Claims] (1) An automatic document feeder configured and arranged to be supported on the viewing glass of a document copying device, wherein the document feeder includes: a second document support member for receiving said document thereon with the rear side facing up after being copied; and a second document support member for transferring a document from said first document support member and for said document copying device. a device for placing the document face down on the imaging glass of the camera; transferring the document from the imaging glass after copying and placing the document face up on the second document support member; A document copying device comprising: a device for copying documents; (2) In the apparatus according to claim 1, the document feeding device is configured and arranged so that the bottommost document in the first document supporting member is fed to the document copying device. A document copying device characterized by: (3) The apparatus according to claim 1, wherein the document feeding device includes a device for separating the bottommost document from the rest of the documents in the first document support member. Document copying device. (4) A document copying apparatus according to claim 3, wherein the document supply device includes a shunt adjuster for moving the copied document within the second document support member. (5) A document copying apparatus according to claim 1, wherein the document feeding device includes a device for covering an unused portion of an image glass of the document copying device. (6) The apparatus according to claim 1, wherein the document feeding device includes a feeding roller for moving the document from the first document supporting member onto the viewing glass, a delay element, and a drive roller. A document copying device characterized by: (7) The document copying apparatus according to claim 6, wherein the document feeding device includes a device for reversing the rotation of the drive roller that moves the copied document from the viewing glass. . (8) A device according to claim 6, characterized in that the document feeding device has a drive roller with two flexible surface guide rollers used to contact the viewing glass. Copying equipment. (9) A document copying apparatus according to claim 8, characterized in that the document feeding device has a central roller that is adjusted to contact the document but not the viewing glass. Device. (10) A document copying apparatus according to claim 4, wherein the document feeding device has a shunt adjuster which is a gate that rotates on a pivot. (11) The document copying apparatus according to claim 4, wherein the document feeding device has the shunt adjuster which is a spring finger-like protrusion arranged so as to be in contact with the image glass. . (12) In the device according to claim 11,
A document copying device characterized in that the spring finger-like protrusion of the document feeding device is a metal member. (13) In the device according to claim 11,
A document feeding device characterized in that the spring fingers of the document feeding device are made of a non-metallic material. (14) The apparatus according to claim 5, wherein the document feeding device has a screen on the viewing glass that is not covered by the document being copied. A document copying device comprising a shield supported between.