JPS62239140A - Image forming device provided with original document feeder - Google Patents

Abstract

PURPOSE:To efficiently process an original document by not performing the read processing of partitioning materials, indicating boundaries of sets of original document. CONSTITUTION:Partitioning papers 300A-300D which set modes of respective sets of original documents are inserted to bottoms of a set D1 of single-sided original documents a set D2 of single-sided original documents, and two sets D3 and D4 of both sides original documents. A single sheet separating and carrying mechanism is driven by a copy start signal, and the partitioning paper 300A of the set D1 is separated and carried and is fed into a sheet path. When processings of sets D1-D3 are performed successively hereafter to complete ejection of the last original document P1 of the set D3, the partitioning paper 300D is set to a platen. Since this set partitioning paper is not an original document, the copying operation is not performed. Thus, the processing is performed more quickly because unnecessary copying is not performed and the processing speed is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image Mhrt4 of a copying machine, etc. equipped with a document feeding device.
Hto'JkML Haruka'+/+41mengd21J"lj!d
The present invention relates to an image forming apparatus that is of a type that sequentially feeds a set of several 14-1/14 My originals from a stacking unit and includes a document feeding device that uses a sheet-like partitioning material to indicate a separation between each set of originals.

[Conventional technology]

In document feeding devices used in conventional copying machines,
The next person could not use the document feeder until the first person had completed the process of processing the document. fact,
The reality is that there is a line waiting for the first person to complete the process. However, it is clear that these are very inefficient and a waste of time.

[Purpose of the invention]

The present invention has been proposed in view of the above points, and is a method for setting one or more document sets on a document stacking section, and sequentially and sequentially performing processing operations according to the processing conditions required for each document set. An image forming apparatus li! equipped with an automatic document feeder! The purpose is to obtain t.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

1 to 10 show an embodiment of the present invention.

FIG. 1 is a sectional view of a document feeding device to which an embodiment of the present invention is applied.

In FIG. 1, reference numeral 1 denotes a stacking tray on which documents are stacked and set. This tray holds the original, and is arranged so that the original feeding side is lower and tilted downward toward the original feeding direction. As a result, the fed documents are stacked together in the sending direction.

Reference numeral 2 denotes a half-moon roller, which sends the document to the downstream separation section, and is controlled so that if there is no document on the stacking tray, the roller stops with the notch facing upward.

Further, reference numerals 4 and 4a denote feeding rollers that feed the original on the tray 1 by rotating the feeding belt 5 in the direction of arrow A. 6.
Reference numeral 6a denotes a separation roller which rotates the separation belt 7 in the direction of arrow B, thereby separating the lowest original among the originals stacked on the tray 1 between the separation roller 5 and the feeding belt 5 one by one.

The feed belt 5 and separation belt 7 constitute a separation supply section S.

The first sheet path (A) is formed between the guides 9 and 9a, and is a path for moving the documents separated one by one by the separation supply section S to a predetermined position or onto the platen glass 10 as a processing section. It is. This sheet path (A) is provided in an arch shape between the one-separation supply unit S and the end 10a of the platen glass 10, and reverses the document sent out by the feeding belt 5 onto the platen glass 10. lead to.

542 (1) C) Paths (C, 2, H) are formed between the arch-shaped guides 12 and 13, one side 14a of the guide 12 and the triangle 14, and the guides 12 and 15. This path passes outside the sheet path and directs the document from above the platen glass 10 toward the road.

The third sheet path (H, T) is a path branching from the second sheet path in the switchback direction, and is a path for directing the document from the second sheet path toward the paper output tray 200. . One side 14b of the guide 15 and the triangular guide 14,
A paper discharge tray 200 for receiving processed documents is provided below the extension of the third sheet path formed by the guides 15 and 13.

The fourth sheet path (H) is a branch further branched from the third sheet path in the switchback direction, and is for reversing the drawing original. One side 1 of guide 13 and triangular guide 14
4c is a path for switchpacking the original from the third sheet path and guiding it onto the platen 10.

Also, 18, 19, and 20 are sheet feeding rollers, and roller 1
Between 8.19 and 19, the originals passing through the first jet nozzle (a) are directed toward the road.

Further, 21.21a, 23, and 23a are feed roller pairs, respectively, and the roller pair 21.21a feeds the original from the platen IO onto the road, and then reverses to switch pack the original from the second sheet path. Send to third sheet pass. Further, the pair of rollers 23.23a conveys the document in the direction of the paper discharge tray 200 in the third sheet path, and then reverses and sends the document from the third sheet path in the direction of the fourth sheet path.

Further, reference numeral 24 denotes a flexible deflection plate, which is attached to the guide 12 such that its tip is in contact with the document conveyance belt 27 or with a slight gap therebetween. The leading edge of the document that has passed through the first sheet path (a) pushes it aside and passes through, moving toward the platen 10. Also, when the original is directed from the platen 10 to the sheet path (c), the tip of this deflection plate 24 is in contact with or close to the belt 27. be led to. At this time, the movable deflection plate 26 is in the state shown by the dotted line, and directs the document to a part of the path (c) of the second sheet bus.

In addition, 25a, 25b, and 25c are also similar deflection plates,
Guides 14b and 14c, respectively.

14a, the tip of which is attached to the guide 12.1.
5.13.

And seat passes (d) and (f) respectively.

The leading edge of the document that has passed through (H) can push this aside and pass through. Also, seat pass (e), (g), (c)
Since the tips of the polarizing plates 25a, 25b, and 25c are pressed by the guides 12, 15, and 13, respectively, the documents heading to the sheet paths (to), (chi), and (d), respectively, are reliably transported. Guided to pass (to), (chi), (d).

The movable deflection plate 26 is disposed at the confluence of the first sheet path (A) and a part of the second sheet path ()\) on the left end 10a side of the platen glass 10. The belt 27 is disposed in parallel with the drive roller 27a, and can freely swing around shafts 28 at both ends. 26 is always urged upward in the rotational direction by a spring 29, and its end 26a is brought into contact with the stopper portion 201a of the cover 201, so that the receiver is in an old state. FIG. 3(b) Also, when the movable deflection plate 26 and the plunger 39 are energized, they are rotated downward as shown by the dotted line. At the dotted line position, the sheet is directed from the platen 10 toward the second sheet path (c), and at the solid line position, the sheet is directed from a part of the second sheet path (c) toward the platen 10. These deflection plates 24,
25a, 25b.

a25c, 26 are 9 prongs, 27a, 27 made of flexible sheet-like material such as mylar or thin plate stainless steel.
b is a document conveyance roller, which rotates a document conveyance belt 27 provided over almost the entire width of the platen 10 and guides the document onto the platen 10;
The original is conveyed in order to release the upper original from there. still,
The document conveying rollers 27a and 27b use the roller 27a as a driving roller and the roller 27b as a driven roller. Also, 31
A belt holding roller is used to press the belt 27 against the upper surface of the glass 10 to ensure that the belt 27 conveys the document and to obtain a clear image.

Sl is a transmission-type first sheet sensor disposed on the leading end side of the document stacking table 1, and detects the presence or absence of a sheet on the table 1. S2
is a transmission-type second sheet disposed in the middle of the first sheet path (a) between the sheet separation and supply section S and the feed rollers 18 and 19.
S3 is a third sheet sensor disposed in the middle of the first sheet path (A) between the feed rollers 18, 19 and the left end portion 10a of the platen glass, and S4 is the third sheet sensor disposed between the left end portion 10 of the platen glass and the feed roller. 19. The fourth sheet sensor is installed in the middle of the second sheet path (d) between Sensor, S6 is feed roller 23゜23^
This is a sixth sheet sensor disposed on the fourth sheet space between the left end portion 10a of the platen glass and the left end portion 10a of the platen glass. The second sheet sensor to the sixth sheet sensor, 52 to S6, detect the leading edge or trailing edge of the sheet passing through that position. Further, the second sheet sensor S2 is also used for reading mode settings using partition paper, which will be described later.

Reference numeral 40 denotes a weight member disposed above the through hole 1a of the document loading table 1, and is freely swingable about a shaft 41. This weight member 40 is normally connected to the first and fourth parts by a spring 42 (Fig. 4).
As shown by the two-dot chain line in the figure, it is lifted and held in the upper relief position around the shaft 41, and when the electromagnetic device 43 is energized, it rotates downward against the spring 42, and the half-moon roller 2 is positioned. It connects to the top surface of the corresponding stacking sheet and presses the sheet appropriately to apply a load. Due to the load action on the stacked sheets P by this weight member 40, the mechanism S of the lowest sheet of the stacked sheets on the platform 1 is moved by the half-moon roller 2.
Sheet feeding in this direction is stabilized and ensured.

The driving of the separation supply section S will be explained using FIG. 5.

FIG. 5 is a drive system diagram of the separating means S, etc.

The gear train 114 is as follows. A gear 115 fixed to the shaft of a drive motor 113 is connected to a gear 17 via an intermediate gear 116. The gear 17 meshes with a gear 118 fixed to the shaft of the half-moon roller 2 and a gear 119 that drives the drive pulley 4a of the feeding belt 5. The gear 119 is connected via an intermediate gear 120 to a gear 121 fixed to the shaft of the drive pulley 6a of the separation belt 7.

A known one-way transmission clutch 122 is provided between the gear 119 and the drive pulley 4a of the feeding belt 5, and allows reverse feeding in the forward (counterclockwise) direction.

Next, the entire surface belt drive unit feed roller drive unit will be explained using FIGS. 6 and 7.

FIG. 6 is a top view of the main drive section. In the figure, 151
can be rotated in forward and reverse directions using a full-surface belt conveyance motor. Reference numeral 152 is a motor boolean attached to the shaft. On the other hand, a drive pulley 153 is attached to the shaft of the document conveyance drive roller 27a, and the motor pulley 152 and the drive pulley 153
A timing belt 154 is placed between them. or,
An electromagnetic brake 155 is attached to the main shaft of the motor 151 in order to improve document stopping accuracy. Further, in order to detect the rotation of the motor, a clock disk 156 and a photointerrupter 157 are attached to the rear side of the main shaft 161, which can be rotated forward and backward by a feed roller drive motor. 162 is a motor boolean attached to it. On the other hand, a pulley 163 is attached to the main shaft of the feed roller 18.
A timing belt 164 is placed between 62 and 163. Further, a clock disk 165 and a photo interrupter 166 are attached to the rear side of the main shaft to detect the rotation of the motor.

Figure 7 is a front view of the main drive section.

In the figure, pulleys 171 and 173 are attached in front of the child sides of the respective main shafts of the feed rollers 21 and 23, and a gear 174 is provided in front of the feed roller 18. A gear 175 meshed with this gear 174 has a pulley portion 175a on the front side. Each pulley 171, 173, 175a
A timing belt 176 is placed on the belt. As a result, the rotation of the feed roller/drive motor 161 is transmitted to each feed roller 18, 21, 23. Further, since the feed roller 19 is in pressure contact with the roller 18, and the roller 20 is in pressure contact with the roller 19, they are driven.

On the other hand, in Fig. 2, 300 is a partition paper, and a large number of rectangles 300a are placed in a line in the document feeding direction so that markings for mode settings can be made. will be carried out.

Here, the mode refers to selection of document type (single-sided, one-sided, double-sided), copy magnification, number of copies, double-sided copy, single-sided copy, etc. The position of this rectangle 300a in the width direction corresponds to the sensor S2.

Next, the operation will be explained.

Specifically, as shown in the example in FIG. 8, one set of three-sheet single-sided originals 'Dl' with pages ■ to 2 sets of double-sided manuscripts of 3 sheets of ■～■ pages D3. An example of obtaining a single-sided or double-sided copy of D4 will be explained. Partition sheets 300A-D are inserted at the bottom of each document collection for setting the mode of the document collection. At this time, the surface to be marked is the top surface. Here, the document set means a group of documents that require the same processing conditions.

In this way, single-sided originals are stacked in page order with the younger pages facing upward and the image side facing upward, while single-sided originals are stacked in page order with the page side facing upward. Then, a partition paper 300 for setting the processing mode of the upper document set is inserted at the bottom of each of the document sets D1 to D4 with the marking side facing upward, and placed on the document stacking tray l. At this time, fully insert the weight member 40 between the tray 1 and the weight member 40 that is lifted and held so that the leading edge of the document bundle is placed on the regulating plate 4.
Set it in contact with the front of 4 (Figure 9 (1))
.

Processing of the A6 single-sided original document table D1 (i) After setting the document, press the copy start button on the operation panel (not shown) on the copying machine main body 100 side.

(ii) The electromagnetic device 43 (Fig. 4) is activated by the copy start signal.
When the weight member 40 is energized, the weight member 40 moves downward to hold down the stacked sheet original.

(ii) Next, the driving of the half-moon roller 2 and the single sheet separation/conveyance mechanism S is started, and the lowest sheet on the stacking tray l, that is, the partition paper 30OA (FIG. 8) of the document set D1, is separated and conveyed one by one. and enter the first seat path (A).

(tV) Partition paper 300 entered the first sheet path (a)
On the way, the leading edge of sheet A is detected by the second sheet sensor S2, and then it hits the nip portion of the pair of feed rollers 18 and 19, which are not rotating at that time, and is received. The feed rollers 18 and 19 are connected to the second sheet sensor S2.
After a predetermined timer time T1 has elapsed from the time when the leading edge of the sheet was detected, the sheet is rotated in the normal direction. Before this timer time elapses, a predetermined amount of loops are formed in the partition paper between the single sheet separation and conveyance mechanism S and the pair of rollers 18 and 19.

(V) When the forward rotation of the pair of feed rollers 18 and 19 is started, the drive of the half-moon roller 2 and the sheet separation S' is stopped. Further, the power to the electromagnetic device 43 is cut off, and the weight member D40 is lifted and held away from the upper surface of the stacked sheet originals on the table l. Even if the roller 2 and mechanism S' are stopped, the partition paper 300A continues to be drawn and conveyed in the first sheet path (a) by the forward rotation of the pair of feed rollers 18 and 19.

(Vl) Next, when the leading edge of the partition paper 300A is detected by the third sheet sensor S3, the forward rotation drive a of the full-surface belt 27 is started based on the signal. And partition paper 30
The tip of the OA pushes away 24, reaches the left end side of the platen glass 10, and then rotates in the normal direction through the gap between the full-surface belt 27 and the tip edge of the movable deflection plate 26, which has been switched to the solid line position. The image is sandwiched between the lower surface of the entire surface belt 27 and the platen glass 10 with the image surface facing downward, and is conveyed along the surface of the platen glass 10 toward the right side of the glass by the conveying force of the entire surface belt 27.

(Vl+) In this first sheet pass (a), the markings made on the partition paper by the second sheet sensor S2 are read while the partition paper 300A is being conveyed, and the following processing mode is determined. Since the second sheet sensor S2 and the markings match in the document width direction, it is possible to read the sheet while conveying it.

Further, although the processing mode is determined by marking here, the partition paper only indicates between document sets, and the processing mode may be inputted in advance from an unillustrated device section.

Therefore, the partition paper 300A may be unnecessary.

(Viii) The driving of the full-surface belt 27 is stopped when a predetermined clock (full-surface belt) CLl has elapsed after the passage of the trailing edge of the partition paper 300A is detected by the third sheet sensor S3. At the time of this stop, the rear edge of the partition paper 300A conveyed onto the platen glass 10 reaches a predetermined base line position O (FIG. 1). The forward rotation of the pair of feed rollers 18 and 19 is stopped when a predetermined timer time T3 has elapsed after passage of the trailing edge of the partition sheet 300A is detected by the second sheet sensor S2. The end of the partition paper has passed between the pair of feed rollers 18 and 19 within this timer time T3 (FIG. 9(2)).

(iX) After the partition paper 300A is fed onto the platen glass 10, the full-surface belt 27 is rotated in the reverse direction.

At this time, the movable deflection plate 26 is held at the chain line position.

(X) Due to the reverse rotation of the full-surface belt 27, the partition paper 300
A is reversely conveyed and passes through the upper surface side of the movable deflection plate 26 to the second
Enter the seat path. Then, it passes through the path of path (/\) -> feed roller pair 19.20 (normal rotation) pass (d) - feed roller pair 21.21a (normal rotation) -> pass (e).

(X i ) When a predetermined timer time T4 has elapsed since passage of the trailing edge of the partition paper 300A was detected by the fourth sheet sensor S4, the pair of feed rollers 21 and 21a is reversed. By the time up of this timer time T4, the partition paper 3
The rear end of 00A passes through the deflection guide 25a and is connected to the roller pair 2.
1, 21a (Fig. 9 (3)).

(X ii) Due to the above-mentioned reversal of the roller pair 21, 21a, the partition paper 300A in the second sheet path (E) is switchback conveyed and enters the third sheet/box (E), and then the feed roller pair 23, 23a enters the third seat path (g) where it is in the normal rotation state.

(Xiii) The normal rotation of the pair of feed rollers 23.23a is stopped when the scheduled timer T5' elapses after the passage of the rear end of the partition paper 300A is detected by the fifth sheet sensor S5. By the time the timer T5' expires, the rear end of the partition paper 300A passes through the roller pair 23.23a and is ejected onto the ejection tray 200 with the marking surface facing upward (FIG. 9 (4)). .

(XIV) Partition paper 300A (7) Sheet discharge ends t6. !
=(T5'Timeup) Next, processing of document set D1 is started.

Thereafter, the operations in sections A-ii-A-Viii are performed in the same manner, and the document P■ at the bottom of D1 is set on the platen with the image surface facing downward (FIG. 9(5)).

(XV) Then, based on the stop signal of the full-surface belt 27, the optical system on the copying machine main body 100 side is activated, and the exposure copying process is executed on the original P■ set on the platen glass 10. The copying mode in this case is determined by the code marked on the partition paper 300A as described above, and the copying mode is executed according to that mode.

In this case, the processing for the document set D1 is from one-sided original to one-sided copying. In the case of 0-sided copy mode, the image of the original P is formed on the first side of the copy paper, and the copy paper is placed in the copy tray with the image side facing upward. 400 (Fig. 9 (5)).

(XVi) The copying process (XV) is repeated for a desired number of copies. The designation of this number of copies is also based on the information from the partition paper 300A.

(XVii) Next item, copy filOO side, original iP
(i +,: Based on the exposure process completion signal, the entire surface belt 27 is rotated in the reverse direction (see FIG. 9).
6)').

(XViii) Hereinafter, A -iX -A -X1i
By the operation in item i, the original P■ is ejected with the image side facing upward ((7) in FIG. 9).

(XiX) Below is the manuscript P■, P■Nitsuite A-Xi
Operations V to A-XViii are performed to complete the processing for the document set D1 ((8) and (9) in FIG. 9).

Processing of the B8 single-sided original document table D2 (i) When the ejection of the final document P■ of Dl is completed, A-
ii ” A-Viii (7) operation is performed, and the partition paper 300B is set on the platen. Since the partition paper set at this time is not a document, no copying operation is performed.
Then, the mode previously set by 30OA is reset, and a new mode by 300B is set here, and the following processing for the original is performed in this mode (FIG. 9 (10)).

(ii) Similar to 30OA, the A-iXNA-Vi operation is performed and the paper is ejected.

(iii) When the ejection of the partition paper 300B is completed, processing of the document set D2 is started next. 5-ii"A-Vi
Perform the operation ii, and set the pB at the bottom of D2 on the platen with the image surface facing downward (Fig. 9 (11)
).

(■) Next, the optical system on the copying machine main body 100 side is activated based on the stop signal of the full-surface belt 27, and the exposure copying process is executed on the original PQ set on the platen glass 10. The copying mode in this case is determined by the number marked on the partition paper 300B as described above, and the copying mode is executed according to that mode.

In this case, the processing for the document set D2 is one-sided original → double-sided copying. In the case of 0-sided → double-sided mode, the image of two originals is formed on the first side of the copy paper, and the copy paper is transferred to the re-feeding mechanism in the copying machine. (intermediate tray 402, etc.).

(V) Repeat the BN copying process for the desired number of copies.

The designation of this number of sheets also depends on the information from the partition paper 300B.

(vl) Then, based on the exposure process completion signal for the document P[J on the copying machine 100 side, the entire surface belt 27 is turned to reverse rotation.

(Vl+) The operation of the following A-iXx A-Xlii terms, the original pH is ejected with the image surface facing upward (FIG. 9 (11)).

(Viii) The next manuscript PIII is A -ii -A-
It is set on the platen by the operation in Section VIII (
Figure 9 (12)).

(iX) When the normal rotation drive of the full-surface belt 27 is stopped, the optical system on the copying machine 100 side operates based on the signal,
The exposure/copying process is executed for the third page document p(1) set on the platen glass 10 with the image surface facing downward.

The copy paper on which the image of the fourth page has already been formed on the first side is fed from the re-conveying mechanism, and the image of the third page is formed on the second side, forming a double-sided copy. The copy is discharged onto the copy tray with the first three pages facing upward (FIG. 9 (12)).

(X) Below, for manuscript P(2), B-m to B-V
D's action, manuscript Pa] Nitsuite is B -Viii -B
-iX operation is performed, and the processing for the document set D2 is completed ((13) and (14) in FIG. 9).

Processing of the C0 double-sided original platen D3 (i) When the ejection of the final original P[] of D2 is completed, the A
-ii ~A -Viii (7) Operation tt Row lx I
/%, the partition paper 300C is set on the platen. Since the separator paper set at this time is not an original, no copying operation is performed, and the mode previously set by 300B is reset, and a new mode by 3000 is set here. mode (Fig. 9 (15)).

(ii) 300 A, 300 B Similarly, A
-iXmA-Viii is performed and the paper is ejected. (Figure 9 (15)).

(iii) When the ejection of the partition paper 300C is completed, the processing of the document set D3 is started next. A-ii~A-V
By the operation iii, PΔ at the bottom of D3 is set on the platen with the 5th page facing down (Fig. 9 (16))
.

(N) A -j
.

(V) When a predetermined time T5 has elapsed after the passage of the trailing edge of the document PΔ is detected by the fifth sheet sensor S5, the pair of feed rollers 23, 23a is reversed. By the time the timer time T5 expires, the trailing edge of the document PΔ has passed through the deflection guide 25b and has arrived in front of the roller pair 23.23a (FIG. 9 (18)).

(Vl) Due to the above-mentioned reversal of the roller pair 23.23a, the document PΔ is conveyed in a switchback manner and enters the fourth sheet path (Q). At this time, the movable deflection plate 26 is switched to the solid line position and passes through the upper surface of the movable deflection plate 26 toward the left side of the platen glass 10 (FIG. 9 (19)).

(Vl+) When the passage of the leading edge of the document PΔ that has entered the fourth sheet path (H) is detected by the sixth sheet sensor S6, the full-surface belt 27 starts normal rotation a, and the document PΔ is transferred to the movable deflection plate 26. The upper surface → passes through the gap between the tip edge of the movable deflection plate 26 and the full-face belt, enters between the platen glass 10 and the full-face belt 27 that is rotating in the normal direction, and is moved toward the left side of the platen glass 10 by the conveying force of the belt 27. transported to.

(Viii) The trailing edge of the original PΔ passes through the sixth sheet sensor S.
At the time when a predetermined clock CL2 has elapsed since the detection at 6, the normal rotation a of the entire belt 27 is stopped. The document PΔ conveyed onto the platen glass 10 at this stop point
The rear end side of has reached a predetermined base line position 0.

(iX) Then, the original PΔ is set on the platen glass 10 with the 6th page facing down (Fig. 9 (19))
.

(X) Then, based on the cleaning signal from the entire surface belt 27, the optical system on the copying machine main body 100 side operates and the platen glass 1
The exposure copying process is executed for the sixth page of the original PΔ set on the original PΔ. The copying mode in this case is determined by the number marked on the partition paper 300C as described above, and the copying mode is executed according to that mode.

In this case, the process for document collection D3 is double-sided original → single-sided copy. In the case of 0-sided → single-sided mode, the image of the original P is formed on the first side of the copy paper, and the copy paper is copied with the image side facing upward. It is discharged onto the tray 400 (FIG. 9 (19)).

(Xi) The copying process of C-x is repeated for a desired number of copies, and the designation of this number of copies is also based on the information from the partition paper 300G.

(Xii) Then, based on the exposure process completion signal for the 6th page of the document PΔ on the copying machine 100 side, the entire surface belt 2
7 is turned to reverse rotation (Fig. 9 (20)).

(Xiii) Next E'C', C-1V ~C-VIc7
) operation, the 5th page of the original PΔ is placed face down on the platen glass 10 (Fig. 9 (21))
.

(XiV) Next, the optical system on the copying machine main body 100 side is operated based on the cleaning signal of the full-surface belt 27, and the exposure copying process is executed for the fifth page of the document PΔ set on the platen glass 10. As in Section C-x, the fifth page is copied onto the first page of the copy paper, and the copy paper is ejected to the copy tray 400 with the image side facing upward (see Fig. 9).
21) ).

(XV) Repeat the copying process of C-x for the desired number of copies.

(XVi) Next, based on the exposure process completion signal for the document PΔ on the copying machine 100 side, the entire surface belt 27 is turned to reverse rotation (FIG. 9 (22)).

(XVii) A-i

(XViii) The operations C-iii to C-xvii are repeated to complete the processing for the document set D3 ((23) to (28) in FIG. 9).

Processing of D1 double-sided original document table D4 (i) When the ejection of the final document P△ of D3 is completed, A-ii
-A -Viii (7) No action, partition paper 300
D is set on the platen. Since the separator paper set at this time is not an original, no copying operation will be performed, and the mode previously set by the 300G will be reset, and a new mode will be set by the 300D. is done in mode (
Figure 9 (29)).

(ii) Similar to 300A to 300C, 300D is A
-iX -A -X1ii is performed and the paper is ejected.

(ii) Operation of C-1n"C-1x Original document P is set on the platen glass 10 with the sixth page facing down (FIG. 9 (30)).

(tV) Next, the optical system on the copying machine main body 100 side operates based on the cleaning signal of the full-surface belt z7, and the exposure copying process is executed for the original P@6 page set on the platen glass 10. The copying mode in this case is determined by the number marked on the partition 1300D as described above, and the copying mode is executed according to that mode ((30) in FIG. 9).

(V) In this case, the processing for the document set D4 is double-sided original - double-sided copying.

In the case of the double mode, the image of the sixth page of the original P is formed on the first side of the copy paper, and the copy paper is once fed to the re-conveying mechanism in the copying machine (FIG. 9 (30)).

1) Repeat the copying process of D-1/ for the desired number of copies.

The designation of this number of sheets is also based on information from the partition paper 300D.

('/It) C-Xii-C-X1iic7) operation, and the document P is set on the platen glass 10 with the fifth page facing down (FIG. 9 (31)).

(Viii) Next, the optical system on the copying machine main body 100 side is activated based on the stop signal of the full-surface belt 27, and the exposure copying process is executed for the 5th page of the original P set on the platen glass 10. Figure 9 (31)).

The copy paper on which the 6th page image has already been formed on the first side is fed by the re-conveying mechanism, and the 5th page image is formed on the second side to form a double-sided copy. The fifth page is discharged onto the copy tray 400 with one side facing upward (FIG. 9 (31)).

(iX) The following manuscript P @ (3rd and 4th page), PΦ (1
, 2nd page) +: The operations of Tweet D-ichi to D-viii are repeated, and the processing for document set D4 is completed ((32) to (33) in FIG. 9).

Note that FIGS. 13(a) to 13(b) show the movement path of the document (FIG. 13(b)) when obtaining a double-sided copy from a double-sided original.
a)) and the moving path of the copy paper (Fig. 13(b),(c)
).・■The image is exposed starting from the page number.

FIG. 14 shows another moving path for copy paper.

Further, FIGS. 15(a) to 15(b) show another example, in which the original is not exposed and is conveyed emptyly in the first cycle. ■The image is exposed starting from the first page.

When the processing of all document sets is completed, the first sensor Sl detects that there is no document on the stacking tray, and the processing is completed.

The processed original is ejected onto the paper ejection tray 200,
The page order is the same as the page order when it was set, so it takes a lot of effort to align the pages.

Furthermore, since the copy paper is also discharged onto the tray 400 in the same page order as the set originals, subsequent work is very efficient.

1 Operation explanatory diagram of the present invention-Embodiment (Fig. 9 (1) to 9
In FIG. 33, the number of copies is assumed to be one for every l original, but it is also possible to make a large number of copies.

At this time, efficiency can be further improved by using a sorter and pager 500, which is a known device. In other words, if you want to make three copies of each copy in all processes, copy sheets of document set D1 are placed in the first to third bins (50 copies) of the sorter.
1 to 503), and use the 4th to 6th bins (5
04 to 506), 7th to 9th bins (507 to 5
09), 10th to 12th bins (610 to 612
) can be used (Figure 10).

In addition, in this embodiment, the fourth path is used for double-sided originals.
However, it is clear that if this path is omitted, it can more easily be used as a document feeder for single-sided documents.

Furthermore, in this embodiment, the partition sheet 300 sets the copy mode for the set of documents to be processed thereafter, but the copy mode is set using the operation section (not shown) of the copying machine main body 100.
Therefore, set it by operating a key etc.
The partition paper 300 may be used to indicate only the separation between the document sets (FIG. 12); that is, good processing can be achieved even if the partition paper is placed at the top of each document set. If you make sure to always use it like the cover of a manuscript collection, it will be easier to prevent mistakes when using it.

Furthermore, the paths shown in FIGS.
The apparatus may be of the type shown in FIG. 19 in which the reservation section and the circulating document feeder are separated.

That is, in FIG. 16, section A is a reservation section, and section B is a circulating document feeder (RDF). lot is a first loading tray, 114 is a discharge tray, and 127 is a second loading tray.

The manuscript is passed (A) → (B) → (C) → Switch pack groan (B) → (D) → (Go) → (CH) → (SU) → (NU) → 1
27 will be loaded. The original is placed on the second stacking tray 12 again.
It is separated from 7 and discharged to path ()) - (to) - (a) → (b) = (/\) → switch pack → (e) → 114. If the original is a double-sided original, pass (C) → (S).
→ (nu) → switchback → (ru) → (o) groaning switchback → (wa) → (chi) → and the front and back are reversed.

In Fig. 17, the RDF is the same as Fig. 16, but the reserved part A
has no reverse path.

Figure 18 shows the RDF inversion path (W) God (O') → (S'
) consists of a closed loop. The reservation section is the same as in FIG. 16.

In FIG. 19, the RDFB is the same as in FIG. 18, and the reservation section A is the same as in FIG. 17.

As described above, according to the embodiment of the present invention, one or more document sets are set on one document stacking section,
Since processing operations can be performed continuously and automatically in accordance with the processing conditions required for each set of documents, there is an effect that efficient processing operations can be performed.

Furthermore, since the originals are separated one by one from the bottom, a set of originals for another process can be added to the stack of originals even while processing is in progress, allowing reservations to be made and further improving efficiency. It is measured.

Further, since the reading process of the main body is not performed on the partitions indicating between the document sets, unnecessary copies are not made and the processing speed is increased.

Further speed-up is possible.

〔Effect of the invention〕

An image forming apparatus equipped with a document feeder according to the present invention is ki
Since it is as in a, it is possible to efficiently process the document, and the processing speed is also improved, so that the speed can be further increased.

[Brief explanation of drawings]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a detailed view of the partition paper, Fig. 3 is a detailed view of the deflection guide section, Fig. 4 is a detailed view of the weight section, and Fig. 5 is a detailed view of the separating section drive system. Figure 6 is a top view of the transport drive system, and Figure 7 is a front view of the transport drive system. Fig. 8 is a detailed view of document collection, Fig. 9 is an explanatory drawing of the operation, Fig. 10 is an explanatory drawing of the sorter, Fig. 11 is a cross-sectional view showing the stacking state, and Fig. 12 is a schematic machine configuration showing the conveyance path of copy paper. , Fig. 13(a) is a route chart showing the order in which originals are conveyed when double-sided copying is made from a double-sided original, Fig. 13(b) is a route diagram of copy paper in the same case, and Fig. 14 is a similar case. Figure 15(a) is another route diagram for copying paper in the same case; Figure 15(b) is a route diagram for copying paper in the same case; Figures 16 to 19 Each figure is a schematic front view showing the conveyance paths of different automatic document feeders. 1----------1--Loading tray, 5
−−−−−−−−−−−−−−−−One separation means, (a)
-------------1----First sheet pass. 27------------------Conveyor belt, (c), (d), (e) 1---------Second sheet pass. (f), (f)----1 layer 3 seat pass, 20
0--1-------------- Paper output tray, (chi)--
-----------One layer 4 seat path, 300 A
-D---1----Partition paper, 402---------
---One intermediate tray, 405--------
One photo drum. 406---------------Switching deflector, 4
07----------Switchback means.

Claims (1)

[Claims] (1) a loading means for loading a set of originals, a feeding means for separating and feeding the originals on the loading means one by one, and a conveying means for guiding the separated originals by the feeding means to a reading section; means for detecting divisions between each document set using a sheet-like partition material placed at the top or bottom of the document set, and configured to prevent reading processing from being performed even when the partition material is guided to the reading unit. An image forming apparatus equipped with a document feeding device.